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CNT-based composites can exhibit exceptional physical, chemical, and mechanical properties, and their tiny addition enhances activity significantly. These captured the eyes of food industrial sector due to its promising characteristics. Biosensing, gas sensing, antimicrobial properties, antibody immobilization, are key factor here. CNTs of various diameters, lengths, and functionalization processes were utilized to show antibacterial effect. By this effect these can be used in food packaging. By sensing ethylene, CNTs can be used in food ripening. As CNTs in pure water improves heat transmission, these can be used in controlled pasteurization which is needed for food safety. CNTs can sense cholesterol, vitamin B6 and others food ingredients. So, these can be utilized in improvement of food quality. The germination of seedlings can be helped along by CNT, which is a positive impact in food quality. The application of CNT-based nanomaterials in food industry is the focus of our research.

CNT-based composites can exhibit exceptional physical, chemical, and mechanical properties, and their tiny addition enhances activity significantly. These captured the eyes of food industrial sector due to its promising characteristics. Biosensing, gas sensing, antimicrobial properties, antibody immobilization, are key factor here. CNTs of various diameters, lengths, and functionalization processes were utilized to show antibacterial effect. By this effect these can be used in food packaging. By sensing ethylene, CNTs can be used in food ripening. As CNTs in pure water improves heat transmission, these can be used in controlled pasteurization which is needed for food safety. CNTs can sense cholesterol, vitamin B6 and others food ingredients. So, these can be utilized in improvement of food quality. The germination of seedlings can be helped along by CNT, which is a positive impact in food quality. The application of CNT-based nanomaterials in food industry is the focus of our research.

As the scaling technology in the silicon-based semiconductor industry is approaching physical limits, it is necessary to search for proper materials to be utilized as alternatives for nanoscale devices and technologies. On the other hand, carbon-related nanomaterials have attracted so much attention from a vast variety of research and industry groups due to the outstanding electrical, optical, mechanical and thermal characteristics. Such materials have been used in a variety of devices in microelectronics. In particular, graphene and carbon nanotubes are extraordinarily favorable substances in the literature. Hence, investigation of carbon-related nanomaterials and nanostructures in different ranges of applications in science, technology and engineering is mandatory. This paper reviews the basics, advantages, drawbacks and investigates the recent progress and advances of such materials in micro and nanoelectronics, optoelectronics and biotechnology.

The 21st century arrived with global growth of energy demand caused by population and standard of living increases. In this context, a suitable alternative to produce COx-free H2 is the catalytic decomposition of methane (CDM), which also allows for obtaining high-value-added carbonaceous nanomaterials (CNMs), such as carbon nanotubes (CNTs). This work presents the results obtained in the co-production of COx-free hydrogen and CNTs by CDM using Ni–Cu and Co–Cu catalysts supported on carbon derived from Argan (Argania spinosa) shell (ArDC). The results show that the operation at 900 °C and a feed-ratio CH4:H2 = 2 with the Ni–Cu/ArDC catalyst is the most active, producing 3.7 gC/gmetal after 2 h of reaction (equivalent to average hydrogen productivity of 0.61 g H2/gmetal∙h). The lower productivity of the Co–Cu/ArDC catalyst (1.4 gC/gmetal) could be caused by the higher proportion of small metallic NPs (<5 nm) that remain confined inside the micropores of the carbonaceous support, hindering the formation and growth of the CNTs. The TEM and Raman results indicate that the Co–Cu catalyst is able to selectively produce CNTs of high quality at temperatures below 850 °C, attaining the best results at 800 °C. The results obtained in this work also show the elevated potential of Argan residues, as a representative of other lignocellulosic raw materials, in the development of carbonaceous materials and nanomaterials of high added-value.

Carbon nanotubes (CNTs) are one of the most exciting discoveries and are studied from thepast two decades. This paper discusses the different allotropes of carbon. A brief survey of history of CNTs, different types of CNTs its geometry, structure and different shapes of CNTs was carried out. Various properties of CNTs such as electronic, mechanical and thermal are explained in detail. The different methods for the production of CNTs are explained outlining their capabilities, efficiencies and possible exploitation for large scale production.

Carbon nanotubes (CNTs) are one of the most exciting discoveries and are studied from thepast two decades. This paper discusses the different allotropes of carbon. A brief survey of history of CNTs, different types of CNTs its geometry, structure and different shapes of CNTs was carried out. Various properties of CNTs such as electronic, mechanical and thermal are explained in detail. The different methods for the production of CNTs are explained outlining their capabilities, efficiencies and possible exploitation for large scale production.

Carbon nanotubes (CNTs) are one of the most exciting discoveries and are studied from thepast two decades. This paper discusses the different allotropes of carbon. A brief survey of history of CNTs, different types of CNTs its geometry, structure and different shapes of CNTs was carried out. Various properties of CNTs such as electronic, mechanical and thermal are explained in detail. The different methods for the production of CNTs are explained outlining their capabilities, efficiencies and possible exploitation for large scale production.

Carbon nanotubes (CNTs) are one of the most exciting discoveries and are studied from thepast two decades. This paper discusses the different allotropes of carbon. A brief survey of history of CNTs, different types of CNTs its geometry, structure and different shapes of CNTs was carried out. Various properties of CNTs such as electronic, mechanical and thermal are explained in detail. The different methods for the production of CNTs are explained outlining their capabilities, efficiencies and possible exploitation for large scale production.

Carbon nanotubes (CNTs) are one of the most exciting discoveries and are studied from thepast two decades. This paper discusses the different allotropes of carbon. A brief survey of history of CNTs, different types of CNTs its geometry, structure and different shapes of CNTs was carried out. Various properties of CNTs such as electronic, mechanical and thermal are explained in detail. The different methods for the production of CNTs are explained outlining their capabilities, efficiencies and possible exploitation for large scale production.

Carbon nanotubes (CNTs) are one of the most exciting discoveries and are studied from thepast two decades. This paper discusses the different allotropes of carbon. A brief survey of history of CNTs, different types of CNTs its geometry, structure and different shapes of CNTs was carried out. Various properties of CNTs such as electronic, mechanical and thermal are explained in detail. The different methods for the production of CNTs are explained outlining their capabilities, efficiencies and possible exploitation for large scale production.

Carbon nanotubes (CNTs) are one of the most exciting discoveries and are studied from thepast two decades. This paper discusses the different allotropes of carbon. A brief survey of history of CNTs, different types of CNTs its geometry, structure and different shapes of CNTs was carried out. Various properties of CNTs such as electronic, mechanical and thermal are explained in detail. The different methods for the production of CNTs are explained outlining their capabilities, efficiencies and possible exploitation for large scale production.

In this study, we report a 3D structured carbon foam electrode assembled from a bi-functional NiCo catalyst, carbon nanotubes (CNT), and a monolith 3D structured carbon foam (CF) as a highly active and stable electrode for oxygen evolution reaction (OER) and methanol oxidation reaction (MOR). When the NiCo@CNTs/CF electrode was used as an anode in OER, after the anodization step, the electrode required a small overpotential of 320 mV to reach the current density of 10 mA cm−2 and demonstrated excellent stability over a long testing time (total 30 h) in 1 M KOH. The as-prepared NiCo@CNTs/CF electrode also exhibited a good performance towards methanol oxidation reaction (MOR) with high current density, 100 mA cm−2 at 0.6 V vs. Ag/AgCl, and good stability in 1 M KOH plus 0.5 M CH3OH electrolyte. The NiCo@CNTs/CF catalyst/electrode provides a potential for application as an anode in water electrolysis and direct methanol fuel cells.

In this study, we report a 3D structured carbon foam electrode assembled from a bi-functional NiCo catalyst, carbon nanotubes (CNT), and a monolith 3D structured carbon foam (CF) as a highly active and stable electrode for oxygen evolution reaction (OER) and methanol oxidation reaction (MOR). When the NiCo@CNTs/CF electrode was used as an anode in OER, after the anodization step, the electrode required a small overpotential of 320 mV to reach the current density of 10 mA cm−2 and demonstrated excellent stability over a long testing time (total 30 h) in 1 M KOH. The as-prepared NiCo@CNTs/CF electrode also exhibited a good performance towards methanol oxidation reaction (MOR) with high current density, 100 mA cm−2 at 0.6 V vs. Ag/AgCl, and good stability in 1 M KOH plus 0.5 M CH3OH electrolyte. The NiCo@CNTs/CF catalyst/electrode provides a potential for application as an anode in water electrolysis and direct methanol fuel cells.

In this study, we report a 3D structured carbon foam electrode assembled from a bi-functional NiCo catalyst, carbon nanotubes (CNT), and a monolith 3D structured carbon foam (CF) as a highly active and stable electrode for oxygen evolution reaction (OER) and methanol oxidation reaction (MOR). When the NiCo@CNTs/CF electrode was used as an anode in OER, after the anodization step, the electrode required a small overpotential of 320 mV to reach the current density of 10 mA cm−2 and demonstrated excellent stability over a long testing time (total 30 h) in 1 M KOH. The as-prepared NiCo@CNTs/CF electrode also exhibited a good performance towards methanol oxidation reaction (MOR) with high current density, 100 mA cm−2 at 0.6 V vs. Ag/AgCl, and good stability in 1 M KOH plus 0.5 M CH3OH electrolyte. The NiCo@CNTs/CF catalyst/electrode provides a potential for application as an anode in water electrolysis and direct methanol fuel cells.

In this study, we report a 3D structured carbon foam electrode assembled from a bi-functional NiCo catalyst, carbon nanotubes (CNT), and a monolith 3D structured carbon foam (CF) as a highly active and stable electrode for oxygen evolution reaction (OER) and methanol oxidation reaction (MOR). When the NiCo@CNTs/CF electrode was used as an anode in OER, after the anodization step, the electrode required a small overpotential of 320 mV to reach the current density of 10 mA cm−2 and demonstrated excellent stability over a long testing time (total 30 h) in 1 M KOH. The as-prepared NiCo@CNTs/CF electrode also exhibited a good performance towards methanol oxidation reaction (MOR) with high current density, 100 mA cm−2 at 0.6 V vs. Ag/AgCl, and good stability in 1 M KOH plus 0.5 M CH3OH electrolyte. The NiCo@CNTs/CF catalyst/electrode provides a potential for application as an anode in water electrolysis and direct methanol fuel cells.

In this study, we report a 3D structured carbon foam electrode assembled from a bi-functional NiCo catalyst, carbon nanotubes (CNT), and a monolith 3D structured carbon foam (CF) as a highly active and stable electrode for oxygen evolution reaction (OER) and methanol oxidation reaction (MOR). When the NiCo@CNTs/CF electrode was used as an anode in OER, after the anodization step, the electrode required a small overpotential of 320 mV to reach the current density of 10 mA cm−2 and demonstrated excellent stability over a long testing time (total 30 h) in 1 M KOH. The as-prepared NiCo@CNTs/CF electrode also exhibited a good performance towards methanol oxidation reaction (MOR) with high current density, 100 mA cm−2 at 0.6 V vs. Ag/AgCl, and good stability in 1 M KOH plus 0.5 M CH3OH electrolyte. The NiCo@CNTs/CF catalyst/electrode provides a potential for application as an anode in water electrolysis and direct methanol fuel cells.

Transparent conductive films are used in a wide variety of devices. While solar cell top electrodes as well as tablet and mobile phone screens require high optical transparency and low sheet resistance (>80% and <10 Ω/❑) to maximize power efficiency; other, less demanding applications, such as those in capacitive touch panels and antistatic coatings, in which only small currents are involved, can be managed with coatings of moderate conductivity. In this paper, we show that area-selective argon plasma treated polyethylene terephthalate surfaces are suitable for localized deposition of carbon nanotubes from their aqueous dispersions by a simple dip coating and subsequent drying processes. The as-deposited carbon nanotubes form entangled networks in microscopic patterns over the plasma-treated surface areas with sheet resistance of <1 kΩ/❑ and optical transparency of ~75%. Based on this process, we demonstrate grid-type transparent conductive thin films of carbon nanotubes as capacitive touch sensors. Since each process step is robust, easy to up and downscale, and may be implemented even in roll-to-roll and sheet-to-sheet fabrication, the demonstrated technology is promising to produce grid-type structures even at an industrial scale in the future.

Freeze casting, also known as ice templating, is a particularly versatile technique that has been applied extensively for the fabrication of well-controlled biomimetic porous materials based on ceramics, metals, polymers, biomacromolecules, and carbon nanomaterials, endowing them with novel properties and broadening their applicability. The principles of different directional freeze-casting processes are described and the relationships between processing and structure are examined. Recent progress in freeze-casting assisted assembly of low dimensional building blocks, including graphene and carbon nanotubes, into tailored micro- and macrostructures is then summarized. Emerging trends relating to novel materials as building blocks and novel freeze-cast geometries—beads, fibers, films, complex macrostructures, and nacre-mimetic composites—are presented. Thereafter, the means by which aligned porous structures and nacre mimetic materials obtainable through recently developed freeze-casting techniques and low-dimensional building blocks can facilitate material functionality across multiple fields of application, including energy storage and conversion, environmental remediation, thermal management, and smart materials, are discussed.

© 2020 Hydrogen Energy Publications LLC Developing photocatalysts with superior efficiency and selectivity is an important issue for photocatalytic converting CO2. Hierarchically heterostructured one-dimensional nanomaterials represent a kind of promising catalysts for photocatalytic CO2 reduction on account of the high surface area and synthetic effect between different components. Herein, we synthesized UIO-66-NH2/carbon nanotubes (CNTs) heterostructures via a hydrothermal method, and investigated their photocatalytic performance. The element mapping, X-ray diffraction, and X-ray photoelectron spectroscopy collectively confirmed that the UIO-66-NH2 was successfully loaded on the surface of the CNTs. The specific surface area of the UIO-66-NH2/CNTs is 1.5 times higher than that of UIO-66-NH2. The photocurrent and electrochemical impedance spectroscopy measurements showed that the CNTs could enhance the electron mobility and reduce the recombination of photogenerated electron-hole pairs, which was also confirmed by the Photoluminescence spectroscopy (PL). The CNTs can improve the conductivity of composites and the dispersion of UIO-66-NH2, exposing more active sites, therefore the UIO-66-NH2 can increase the absorption of carbon dioxide and thus enhance the selectivity. The composites remarkably promoted the separation and transition of electrons and thus improved the photocatalytic efficiency of CO2 reduction. More importantly, it was found that the as-prepared composites suppress the hydrogen generation reaction during the CO2 reduction process.

© 2020 Hydrogen Energy Publications LLC Developing photocatalysts with superior efficiency and selectivity is an important issue for photocatalytic converting CO2. Hierarchically heterostructured one-dimensional nanomaterials represent a kind of promising catalysts for photocatalytic CO2 reduction on account of the high surface area and synthetic effect between different components. Herein, we synthesized UIO-66-NH2/carbon nanotubes (CNTs) heterostructures via a hydrothermal method, and investigated their photocatalytic performance. The element mapping, X-ray diffraction, and X-ray photoelectron spectroscopy collectively confirmed that the UIO-66-NH2 was successfully loaded on the surface of the CNTs. The specific surface area of the UIO-66-NH2/CNTs is 1.5 times higher than that of UIO-66-NH2. The photocurrent and electrochemical impedance spectroscopy measurements showed that the CNTs could enhance the electron mobility and reduce the recombination of photogenerated electron-hole pairs, which was also confirmed by the Photoluminescence spectroscopy (PL). The CNTs can improve the conductivity of composites and the dispersion of UIO-66-NH2, exposing more active sites, therefore the UIO-66-NH2 can increase the absorption of carbon dioxide and thus enhance the selectivity. The composites remarkably promoted the separation and transition of electrons and thus improved the photocatalytic efficiency of CO2 reduction. More importantly, it was found that the as-prepared composites suppress the hydrogen generation reaction during the CO2 reduction process.

The generation of Fe(II) from Fe(III) is the rate-limiting step in the heterogeneous Fenton reaction, and accelerating this step is critical for enhancing the reaction efficiency and also the subject of extensive studies. In this work, the oxidized multi-walled carbon nanotubes (CNTs) were coupled with ferrihydrite (Fh) to synthesize novel and highly efficient heterogeneous Fenton catalysts (CNTs/Fh). Interestingly, the calculated apparent rate constants by 3%CNTs/Fh could reach ∼7.1 times as high as that by Fh, well in agreement with the accelerated decomposition rate of H2O2, as well as the enhanced generation rate of Fe(II) and hydroxyl radicals in the CNTs/Fh system. The density functional theory calculations and the cyclic voltammograms curves both well indicated that the Fe(III)/Fe(II) redox cycling on CNTs/Fh could be significantly enhanced during the Fenton reaction, from both dynamic (accelerating the electron transfer from H2O2 to Fh) and thermodynamic (lowering Fe(III)/Fe(II) redox potential) aspects.

© 2020 Hydrogen Energy Publications LLC Developing photocatalysts with superior efficiency and selectivity is an important issue for photocatalytic converting CO2. Hierarchically heterostructured one-dimensional nanomaterials represent a kind of promising catalysts for photocatalytic CO2 reduction on account of the high surface area and synthetic effect between different components. Herein, we synthesized UIO-66-NH2/carbon nanotubes (CNTs) heterostructures via a hydrothermal method, and investigated their photocatalytic performance. The element mapping, X-ray diffraction, and X-ray photoelectron spectroscopy collectively confirmed that the UIO-66-NH2 was successfully loaded on the surface of the CNTs. The specific surface area of the UIO-66-NH2/CNTs is 1.5 times higher than that of UIO-66-NH2. The photocurrent and electrochemical impedance spectroscopy measurements showed that the CNTs could enhance the electron mobility and reduce the recombination of photogenerated electron-hole pairs, which was also confirmed by the Photoluminescence spectroscopy (PL). The CNTs can improve the conductivity of composites and the dispersion of UIO-66-NH2, exposing more active sites, therefore the UIO-66-NH2 can increase the absorption of carbon dioxide and thus enhance the selectivity. The composites remarkably promoted the separation and transition of electrons and thus improved the photocatalytic efficiency of CO2 reduction. More importantly, it was found that the as-prepared composites suppress the hydrogen generation reaction during the CO2 reduction process.

Wearable electronic sensor was prepared on a light and flexible substrate. The breathing sensor has a broad assumption and great potential for portable devices in wearable technology. In the present work, the application of a flexible thermoplastic polyurethane/multiwalled carbon nanotubes (TPU/MWCNTs) strain sensor was demonstrated. This composite was prepared by a novel technique using a thermoplastic filtering membrane based on electrospinning technology. Aqueous dispersion of MWCNTs was filtered through membrane, dried and then welded directly on a T-shirt and encapsulated by a thin silicone layer. The sensing layer was also equipped by electrodes. A polymer composite sensor is capable of detecting a deformation by changing its electrical resistance. A T-shirt was capable of analyzing a type, frequency and intensity of human breathing. The sensitivity to the applied strain of the sensor was improved by the oxidation of MWCNTs by potassium permanganate (KMnO4) and also by subsequent application of the prestrain.

© 2020 Hydrogen Energy Publications LLC Developing photocatalysts with superior efficiency and selectivity is an important issue for photocatalytic converting CO2. Hierarchically heterostructured one-dimensional nanomaterials represent a kind of promising catalysts for photocatalytic CO2 reduction on account of the high surface area and synthetic effect between different components. Herein, we synthesized UIO-66-NH2/carbon nanotubes (CNTs) heterostructures via a hydrothermal method, and investigated their photocatalytic performance. The element mapping, X-ray diffraction, and X-ray photoelectron spectroscopy collectively confirmed that the UIO-66-NH2 was successfully loaded on the surface of the CNTs. The specific surface area of the UIO-66-NH2/CNTs is 1.5 times higher than that of UIO-66-NH2. The photocurrent and electrochemical impedance spectroscopy measurements showed that the CNTs could enhance the electron mobility and reduce the recombination of photogenerated electron-hole pairs, which was also confirmed by the Photoluminescence spectroscopy (PL). The CNTs can improve the conductivity of composites and the dispersion of UIO-66-NH2, exposing more active sites, therefore the UIO-66-NH2 can increase the absorption of carbon dioxide and thus enhance the selectivity. The composites remarkably promoted the separation and transition of electrons and thus improved the photocatalytic efficiency of CO2 reduction. More importantly, it was found that the as-prepared composites suppress the hydrogen generation reaction during the CO2 reduction process.

The main focus of this project was to prepare transparent and conductive electrodes (TCEs). TCEs were made out of multi-walled carbon nanotubes (MWCNTs), reduced graphene oxide (rGO), and polyvinylpyrrolidone (PVP). Based on the theoretical aspect, MWCNTs has emerged as a promising nanofiller in the polymer matrix due to its high electrical conductivity. As a nanofiller, MWCNTs were used with a small ratio of rGO with PVP as a polymer matrix in this project to prepare TCEs having low sheet resistance with high transparency. An appropriate amount of PVP has been shown to be a good combination with MWCNTs and rGO in the solvent to keep MWCNTs dispersed for a long time. Carboxyl group (-COOH) functionalized MWCNTs (FMWCNTs) was produced in a controlled oxidative procedure due to enabling good dispersion of FMWCNTs in water and ethanol solvents. In contrast, water dispersible rGO was chemically prepared by using GO and sodium borohydride where GO was produced from graphite by using improved Hummer's method. Drop casting and spray coating methods were applied to fabricate TCEswhere only water was used as the solvent for drop casted TCEs and a mixing ratio of water and ethanol was 70:30 as solvent for spray coated TCEs. It was also determined in this project that the spray coating method was more suitable for preparing TCEs rather than thedrop casting method due to easy fabrication, large area coating possibility, and the smoothness of the coated film surface. The sheet resistance was obtained as 5026 Ω/ ⃣ where the transparency was 65% in the case of the drop casted electrode for the ratio of rGO:FMWCNTs:PVP was 1.2:60:1 with 0.02 mg FMWCNTs. In the case of spray coated electrode at the same ratio of rGO:FMWCNTs:PVP, the sheet resistance was measured as 5961 Ω/ ⃣ where the transparency was 73%. But in the case of 60:1 mass ratio of FMWCNTs:PVP with 0.02 mg FMWCNTs, the sheet resistance was 7729 Ω/ ⃣ and transparency was 77% for spray coated electrode. So, it is clear

Les changements climatiques à cause de la consommation des combustibles fossiles sont actuellement un défi urgent dans le monde entier. Les sources d'énergie pratiques et écologiquement durables pour remplacer les combustibles fossiles traditionnels sont indispensables. La pile à combustible, en particulier la pile à combustible à membrane échangeuse de protons (en anglais : PEMFC), est considérée comme l’un des candidats les plus prometteurs, car elle pourrait convertir directement l’énergie chimique en énergie électrique utilisant par la méthode électrochimique. Théoriquement, la performance du rendement des piles à combustible est déterminée par la cinétique de la réaction d'oxydation de l'hydrogène (en anglais : HOR) sur l'anode et par la réaction de réduction de l'oxygène (en anglais : ORR) sur la cathode. Pratiquement, la cinétique de l'ORR sur la cathode est inférieure à cinq ordres de grandeur (~ ×105) à celle du HOR sur l'anode. La mise au point d'électrocatalyseurs très efficaces pour faciliter l’ORR cathodique très lente est un souci très important. À présent, le platine (Pt) est toujours un électrocatalyseur d’ORR le plus utilisé dans l’industrie. Cependant, l’électrocatalyseur de Pt/C est difficile à commercialiser dans l’industrie en raison du coût élevé et la stabilité opérationnelle à long terme inadéquate. Jusqu'à maintenant, un grand nombre de recherches ont été contribuées à la résolution des problèmes susmentionnés et ces stratégies peuvent être divisées en deux parties: (i) Le catalyseur de Pt/C sera amélioré soit par la méthode de modification de particule de Pt en remplaçant le support conventionnel; soit par l’ingénierie de surface par la modification du revêtement des nanoparticules (en anglais : NPs) de Pt; (ii) Des catalyseurs à base de Pt seront remplacés par des catalyseurs à base de métaux non-précieux et des catalyseurs sans métaux. Tout d'abord, nous avons synthétisé des électrocatalyseurs composés des NPs de Pt avec le support des na

Carbon Nanotubes (CNTs) with wall density of 5.3×1012cm-2 are synthesized on NiSi at 450°C by using Ti barrier layer and multilayer Ni/Al/Ni catalyst. Based on this synthesis process, sub-micron CNT vias are fabricated, with via resistance of 47 Ωμm2. Resistance trend of scaling CNT via is presented to shows prospect of CNT vias for advanced technology node. © 2018 IEEE.

Improvement upon, and expansion of, diagnostic tools for clinical infections have been increasing in recent years. The simplicity and rapidity of techniques are imperative for their adoption and widespread usage at point-of-care. The fabrication and evaluation of such a device is reported in this work. The use of a small bioreceptor array (based on lectin-carbohydrate binding) resulted in a unique response profile, which has the potential to be used for pathogen identification, as demonstrated by Principal Component Analysis (PCA). The performance of the chemiresistive device was tested with Escherichia coli K12, Enterococcus faecalis, Streptococcus mutans, and Salmonella typhi. The limits of detection, based on concanavalin A (conA) lectin as the bioreceptor, are 4.7 × 10³ cfu/mL, 25 cfu/mL, 7.4 × 10⁴ cfu/mL, and 6.3 × 10² cfu/mL. This shows that the detection of pathogenic bacteria is achieved with clinically relevant concentrations. Importantly, responses measured in spiked artificial saliva showed minimal matrix interference. Furthermore, the exploitation of the distinctive outer composition of the bacteria and selectivity of lectin-carbohydrate interactions allowed for the discrimination of bacterial infections from viral infections, which is a current and urgent need for diagnosing common clinical infections.

Carbon nanotube (CNT) supported catalysts containing ceria-zirconia mixed oxide (CeZrO2) and nickel were synthesized and tested in water gas shift (WGS) reaction. Physicochemical characterization including N2 adsorption, X-ray diffraction (XRD), scanning and transmission microscopy (SEM/TEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA) and temperature programmed reduction with H2 (H2-TPR), as well as catalytic tests of WGS reaction showed that the synthesis method had significant impact on composition, morphology, structural properties and catalytic performance of obtained hybrid materials. The catalysts obtained by co-precipitation of metal oxides (NiO and/or CeZrO2) on CNT walls demonstrated better dispersion of active phase and smaller particle size than catalyst obtained by depositing of powder CeZrO2 or Ni-CeZrO2. Moreover, the catalyst obtained by co-precipitation revealed better performance in WGS reaction; however, some CH4 formation was noticed over Ni-CeZrO2/CNT system. The role of CeZrO2 in catalysts performance in WGS as well as the importance of good metal-oxide contact were confirmed.

Improvement upon, and expansion of, diagnostic tools for clinical infections have been increasing in recent years. The simplicity and rapidity of techniques are imperative for their adoption and widespread usage at point-of-care. The fabrication and evaluation of such a device is reported in this work. The use of a small bioreceptor array (based on lectin-carbohydrate binding) resulted in a unique response profile, which has the potential to be used for pathogen identification, as demonstrated by Principal Component Analysis (PCA). The performance of the chemiresistive device was tested with Escherichia coli K12, Enterococcus faecalis, Streptococcus mutans, and Salmonella typhi. The limits of detection, based on concanavalin A (conA) lectin as the bioreceptor, are 4.7 × 10³ cfu/mL, 25 cfu/mL, 7.4 × 10⁴ cfu/mL, and 6.3 × 10² cfu/mL. This shows that the detection of pathogenic bacteria is achieved with clinically relevant concentrations. Importantly, responses measured in spiked artificial saliva showed minimal matrix interference. Furthermore, the exploitation of the distinctive outer composition of the bacteria and selectivity of lectin-carbohydrate interactions allowed for the discrimination of bacterial infections from viral infections, which is a current and urgent need for diagnosing common clinical infections.

Carbon nanotube (CNT) supported catalysts containing ceria-zirconia mixed oxide (CeZrO2) and nickel were synthesized and tested in water gas shift (WGS) reaction. Physicochemical characterization including N2 adsorption, X-ray diffraction (XRD), scanning and transmission microscopy (SEM/TEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric analysis (TGA) and temperature programmed reduction with H2 (H2-TPR), as well as catalytic tests of WGS reaction showed that the synthesis method had significant impact on composition, morphology, structural properties and catalytic performance of obtained hybrid materials. The catalysts obtained by co-precipitation of metal oxides (NiO and/or CeZrO2) on CNT walls demonstrated better dispersion of active phase and smaller particle size than catalyst obtained by depositing of powder CeZrO2 or Ni-CeZrO2. Moreover, the catalyst obtained by co-precipitation revealed better performance in WGS reaction; however, some CH4 formation was noticed over Ni-CeZrO2/CNT system. The role of CeZrO2 in catalysts performance in WGS as well as the importance of good metal-oxide contact were confirmed.

The appropriate conditions for liquid-phase assisted spark-plasma sintering (SPS) were identified for the fabrication of both SiC nanoceramics and their nanocomposites with carbon nanotubes (CNTs). A parametric study of the nanoceramics and nanocomposites with a given type of CNTs showed that the SPS temperature (as measured by the radial optical pyrometer) optimizing their densification, nanograin size, and mechanical properties is 1700 degrees C (soaking for a few minutes), below which there is incomplete densification, and above which there is obvious grain growth with no benefit in hardness or toughness in the case of the nanoceramics, and prejudicial to both properties in the case of the nanocomposites due to the CNT degradation. It was also shown that the nanocomposites have smaller nanograins than their nanoceramic counterparts, and are softer but tougher. Extension to nanocomposites with different types of CNTs confirmed these trends, and showed that the CNT features do not condition the densification, microstructure or mechanical properties of these nanocomposites.

Poly(acrylamide)-multiwalled carbon nanotubes (PAAm-MWNTs) hybrid hydrogels were prepared through the radiation-induced polymerization and crosslinking of the aqueous solution of acrylamide and well-dispersed MWNTs for the first time. The PAAm gels obtained by the radiation-induced polymerization and cosslinking showed very high mechanical strengths, and the PAAm-MWNTs hybrid hydrogels had improved mechanical properties compared with the PAAm gels, and hence the PAAm-MWNTs hybrid hydrogels showed extremely high compressive and tensile strengths. The hybrid hydrogels with water contents more than 80 wt.% usually did not fracture even at compressive strengths close to or even more than 60 MPa and strains more than 97%. And the hybrid hydrogels had very high elongations (more than 2000% in some cases), especially when the water content was high. The tensile strengths were in sub-MPa. The hybrid PAAm-MWNTs hydrogel is one of the strongest hydrogel even made.

A composite of manganese monoxide loaded onto carbon nanotubes (CNTs@MnO) has been synthesized by a facile approach, in which the CNTs form a continuous conductive network connecting the electrocatalyst MnO nanoparticles together to facilitate good electrochemical performance. The electrocatalyst MnO shows favourable rechargeability, and good phase and morphology stability in lithium oxygen batteries. Excellent cycling performance is also demonstrated, in which the terminal voltage is higher than 2.4 V after 100 cycles at 0.4 mA cm-2, with 1000 mAh g-1 (composite) capacity. Therefore, this hybrid material is promising for use as a cathode material for lithium oxygen batteries.

A composite of manganese monoxide loaded onto carbon nanotubes (CNTs@MnO) has been synthesized by a facile approach, in which the CNTs form a continuous conductive network connecting the electrocatalyst MnO nanoparticles together to facilitate good electrochemical performance. The electrocatalyst MnO shows favourable rechargeability, and good phase and morphology stability in lithium oxygen batteries. Excellent cycling performance is also demonstrated, in which the terminal voltage is higher than 2.4 V after 100 cycles at 0.4 mA cm-2, with 1000 mAh g-1 (composite) capacity. Therefore, this hybrid material is promising for use as a cathode material for lithium oxygen batteries.

Carbon nanotubes (CNTs)/MnOx-Carbon hybrid nanofibers have been successfully synthesized by the combination of a liquid chemical redox reaction (LCRR) and a subsequent carbonization heat treatment. The nanostructures exhibit a unique one-dimensional core/shell architecture, with one-dimensional CNTs encapsulated inside and a MnOx-carbon composite nanoparticle layer on the outside. The particular porous characteristics with many meso/micro holes/pores, the highly conductive one-dimensional CNT core, as well as the encapsulating carbon matrix on the outside of the MnOx nanoparticles, lead to excellent electrochemical performance of the electrode. The CNTs/MnOx-Carbon hybrid nanofibers exhibit a high initial reversible capacity of 762.9 mAh-1, a high reversible specific capacity of 560.5 mAh-1 after 100 cycles, and excellent cycling stability and rate capability, with specific capacity of 396.2 mAh-1 when cycled at the current density of 1000 mA-1, indicating that the CNTs/MnOx-Carbon hybrid nanofibers are a promising anode candidate for Li-ion batteries.

A composite of manganese monoxide loaded onto carbon nanotubes (CNTs@MnO) has been synthesized by a facile approach, in which the CNTs form a continuous conductive network connecting the electrocatalyst MnO nanoparticles together to facilitate good electrochemical performance. The electrocatalyst MnO shows favourable rechargeability, and good phase and morphology stability in lithium oxygen batteries. Excellent cycling performance is also demonstrated, in which the terminal voltage is higher than 2.4 V after 100 cycles at 0.4 mA cm-2, with 1000 mAh g-1 (composite) capacity. Therefore, this hybrid material is promising for use as a cathode material for lithium oxygen batteries.

A composite of manganese monoxide loaded onto carbon nanotubes (CNTs@MnO) has been synthesized by a facile approach, in which the CNTs form a continuous conductive network connecting the electrocatalyst MnO nanoparticles together to facilitate good electrochemical performance. The electrocatalyst MnO shows favourable rechargeability, and good phase and morphology stability in lithium oxygen batteries. Excellent cycling performance is also demonstrated, in which the terminal voltage is higher than 2.4 V after 100 cycles at 0.4 mA cm-2, with 1000 mAh g-1 (composite) capacity. Therefore, this hybrid material is promising for use as a cathode material for lithium oxygen batteries.

Non-precious metal catalysts for the oxygen reduction reaction (ORR) based upon the incorporation of different amounts of N into the CC network of multiwalled carbon nanotubes (CNTs) have been prepared by using CNTs and urea as the carbon and nitrogen sources, respectively. First, and with the aim of generating different levels of defects in the carbon network, the CNTs have been subjected to ballmilling during different periods of time between 0 and 150 h. Then, urea was mixed with the treated CNTs, subjected to further ballmilling and pyrolized at 800 °C. The number of defects, and as a consequence, the amount of N incorporated into the CNTs, increases with the duration of the ballmilling time. Moreover, the structure of the CNTs obtained after longer ballmilling times collapses leading to a carbon material with a high degree of microporisity. The performance of the N/CNT for the ORR, in terms of both the onset potential and mass current activity, increases with the amount of N actually incorporated into the CNT. Moreover, the H2O2 formation during ORR varies with the morphology of the catalyst. Thus, the formation of H2O2 is favored with the electrocatalysts in which the CNT structure is preserved, whereas the total reduction of O2 to H2O is favored for the electrocatalysts in which micropores are formed.

A composite of manganese monoxide loaded onto carbon nanotubes (CNTs@MnO) has been synthesized by a facile approach, in which the CNTs form a continuous conductive network connecting the electrocatalyst MnO nanoparticles together to facilitate good electrochemical performance. The electrocatalyst MnO shows favourable rechargeability, and good phase and morphology stability in lithium oxygen batteries. Excellent cycling performance is also demonstrated, in which the terminal voltage is higher than 2.4 V after 100 cycles at 0.4 mA cm-2, with 1000 mAh g-1 (composite) capacity. Therefore, this hybrid material is promising for use as a cathode material for lithium oxygen batteries.

IntroductionLa transfusion sanguine est un acte médical, qui a pour but d’apporter au malade du sang ou ses dérivés. Elle est le résultat d’une chaîne d’activités complexes au cours de laquelle interviennent différentes catégories de personnel médical et paramédical, par conséquent elle ne peut pas être considérée comme un acte anodin. Elle reste entachée de beaucoup de risques, qui peuvent être, de type infectieux, immunologiques, hémodynamiques et métaboliques.Afin de lutter contre ces risques, la sécurité transfusionnelle (l’ensemble des mesures visant à éliminer les risques immunologiques et infectieux liés à la transfusion des produits sanguins a été définie par l’OMS qui de surcroit en a précisé les 3 composantes principales qui sont: a) la disponibilité du sang. b) l’innocuité du sang. c) l’utilisation judicieuse de produits sanguins labiles.Notre travail s’est focalisé sur l’un de ces aspects à savoir l’innocuité du sang. En effet, tandis que les pays du Nord sont à la recherche des virus émergents et commencent à déclarer que les risques viraux sont de plus en plus maîtrisés, l’Afrique se trouve encore dans la phase d’implantation de politiques et stratégies de sécurité transfusionnelle sous l’impulsion de l’OMS .L’incidence des risques viraux globalement supérieures à celle des pays du Nord est différente d’un pays à un autre. Le risque résiduel (qui est un risque qui subsiste après la réponse au risque ou après l'application de mesures d'atténuation du risque) viral transfusionnel peut être attribué à quatre facteurs :a) l’erreur technique la plupart du temps humaine ;b) un variant viral non reconnu par certains réactifs ;c) un don infectieux séronégatif chez un porteur chronique ;d) ou un don réalisé chez un sujet très récemment infecté (« fenêtre silencieuse »).Hypothèses :Les hypothèses émises pour ce travail étaient :- La connaissance, les attitudes et les pratiques de la population générale, des donneurs de sang et des prestatair, Doctorat en Sciences de la santé publique, info:eu-repo/semantics/nonPublished

© 2014 The Authors. Published by Elsevier Ltd. In this work, we propose to use a screen-printed piezoelectric cantilever with double transduction. Indeed, the piezoelectric cantilever is used as a resonant type sensor coated with carbon nanotubes (CNTs) as sensitive layer. Then, the resistance of CNTs is measured in static mode in parallel thanks to a modification of the cantilever top electrode. The combination of the CNTs equilibrium conductivity measurement and the resonance frequency shift of the 31-longitudinal mode allows the use of this device as a chemical gas sensor for benzene detection. The responses towards benzene concentrations under different relative humidity backgrounds are discussed.

HSE has to be considered as a priority before any industrial nanofiller compounding. Typical rubber techniques are applicable to disperse nanofillers if an encapsulation is prior considered. EPDM formulation includes dilution of the Masterbatch improve the processability and better mechanical and electrical properties with CNTs than carbon black., HSE has to be considered as a priority before any industrial nanofiller compounding. Typical rubber techniques are applicable to disperse nanofillers if an encapsulation is prior considered. EPDM formulation includes dilution of the Masterbatch improve the processability and better mechanical and electrical properties with CNTs than carbon black.

Carbon nanotubes (CNTs) can be seen as graphene sheets rolled to form cylinders. CNTs may be categorised as single- (SWCNT) or multi-walled (MWCNT). Due to the small size, the number of particles as well as the surface area per mass unit is extremely high. CNTs are highly diverse, differing with respect to e.g., diameter, length, chiral angles, chemical functionalisation, purity, stiffness and bulk density. Today, CNTs are utilised primarily for the reinforcement of composite polymers, but there is considerable potential for other applications. The rapidly growing production and use of CNTs increases the risk for occupational exposure. Since CNTs in bulk form are of very low density and much dust is produced during their handling, exposure by inhalation appears to represent the greatest potential risk in the work place. However, most work place measurements involved sampling periods that are too short, varying sampling techniques and non-specific analytical methods. CNTs may be absorbed via inhalation and ingestion. Systemic uptake via the skin has not been demonstrated. Human toxicity data on CNTs are lacking and interpretation of animal studies is often problematic since the physical properties and chemical composition are diverse, impurities may be present and data are sometimes omitted. Because of the physical similarities between asbestos and CNTs, it can be suspected that the latter may also cause lung fibrosis, mesothelioma and lung cancer following inhalation. Intraperitoneal and intrascrotal administration of CNTs causes mesothelioma in animals, but no inhalation carcinogenicity studies have been conducted. Thus, it is too early conclude whether CNTs cause mesothelioma and lung cancer in humans. Both SWCNTs and MWCNTs cause inflammation and fibrosis in the lungs of relevant animal types and for MWCNTs these effects are also seen in the pleura. For instance, minimal histiocytosis and mild granulomatous inflammation in the lungs and lung-draining lymph nodes

The search for new materials for hydrogen storage is important for the development of future hydrogen energy applications. In this Thesis, it is shown that new materials with interesting properties can be synthesized by the reaction of hydrogen with various nanocarbon precursors. The thesis consists of two parts. The first part is devoted to studies of hydrogen storage in some metal-organic frameworks (MOFs) and nanostructured carbon materials, while the second part describes synthesis of new materials by the reaction of hydrogen gas with various carbon materials (i.e. fullerene C60, single-walled carbon nanotubes (SWCNTs), and fullerene C60 encapsulated inside SWCNTs (C60@SWCNTs)). Hydrogen adsorption was measured for a set of Zn- and Co-based MOFs at near ambient temperatures. MOFs synthesized using different metal clusters and organic connecting ligands allowed to study effects of different surface area, pore volume, and pore shapes on hydrogen storage parameters. Hydrogen adsorption values in the studied MOFs correlated well with surface area and pore volume but did not exceed 0,75wt.%. Therefore, new methods to improve the hydrogen storage capacity in MOFs were investigated. The addition of metal catalysts was previously reported to improve significantly hydrogen storage in MOFs. In this thesis the effect of Pt catalyst addition on hydrogen adsorption in MOF-5 was not confirmed. Contrary to previous reports, hydrogen adsorption in MOF-5 mixed/modified with Pt catalysts had fast kinetics, correlated well with surface area, and was on the same level as for unmodified MOF-5. New nanostructured carbon materials were synthesized by the reaction between fullerene C60 and coronene/anthracene. Despite negligible surface area these materials adsorbed up to 0,45wt.% of hydrogen at ambient temperatures. The reaction of fullerene C60 with hydrogen gas was studied at elevated temperatures and hydrogen pressures. In situ gravimetric monitoring of the reaction was performed i, Sökandet efter nya material för vätelagring är viktigt för utveckling av framtida väteenergitillämpningar. I denna avhandling visas att nya material med intressanta egenskaper kan syntetiseras genom reaktion av väte med olika nanokolprekursorer. Avhandlingen består av två delar. Den första delen ägnas åt studier av vätelagring i vissa metall-organiska fackverk (så kallade MOFs) och nanostrukturerade kolmaterial medan den andra delen beskriver syntes av nya material genom reaktion av vätgas med olika kolmaterial (dvs. fulleren C60, enkelväggiga kolnanorör (SWCNTs) och fulleren C60 kapslat i SWCNTs (C60 @ SWCNTs)). Väteadsorptionen mättes för ett antal Zn- och Co-baserade MOFs vid rumstemperatur. MOFs syntetiserades med hjälp av olika metallkluster och organiska ligander för att studera effekterna av olika yta, porvolym och porformer på vätelagringsparametrarna. Väteadsorptionsvärden i de studerade MOFs korrelerade väl med yta och porvolym, men översteg inte 0,75wt.%. Därför undersöktes nya metoder för att förbättra kapaciteten för vätelagring i MOFs. Tillsättning av metallkatalysatorer har tidigare rapporterats avsevärt förbättra vätelagring i MOFs. I denna avhandling kunde effekten av en tillsats av Pt-katalysator på väteadsorption i MOF-5 inte bekräftas. I motsats till tidigare rapporter hade väteadsorption i MOF-5 blandad/modifierad med Pt-katalysatorer snabb kinetik och korrelerade väl med arean, men var på samma nivå som för omodifierad MOF-5. Nya nanostrukturerade kolmaterial syntetiserades genom reaktion mellan fulleren C60 och coronene/antracene. Trots försumbar yta adsorberade dessa material upp till 0,45wt.% väte vid rumstemperatur. Reaktionen av fulleren C60 med vätgas studerades vid förhöjda temperaturer och vätetryck. In situ gravimetrisk övervakning av reaktionen utfördes i ett brett temperaturintervall med/utan tillsats av metallkatalysatorer (dvs. Pt och Ni). Reaktionen resulterade i syntes av hydrogenerade fullerener C60Hx (med x≤56) följt av fragmen

The search for new materials for hydrogen storage is important for the development of future hydrogen energy applications. In this Thesis, it is shown that new materials with interesting properties can be synthesized by the reaction of hydrogen with various nanocarbon precursors. The thesis consists of two parts. The first part is devoted to studies of hydrogen storage in some metal-organic frameworks (MOFs) and nanostructured carbon materials, while the second part describes synthesis of new materials by the reaction of hydrogen gas with various carbon materials (i.e. fullerene C60, single-walled carbon nanotubes (SWCNTs), and fullerene C60 encapsulated inside SWCNTs (C60@SWCNTs)). Hydrogen adsorption was measured for a set of Zn- and Co-based MOFs at near ambient temperatures. MOFs synthesized using different metal clusters and organic connecting ligands allowed to study effects of different surface area, pore volume, and pore shapes on hydrogen storage parameters. Hydrogen adsorption values in the studied MOFs correlated well with surface area and pore volume but did not exceed 0,75wt.%. Therefore, new methods to improve the hydrogen storage capacity in MOFs were investigated. The addition of metal catalysts was previously reported to improve significantly hydrogen storage in MOFs. In this thesis the effect of Pt catalyst addition on hydrogen adsorption in MOF-5 was not confirmed. Contrary to previous reports, hydrogen adsorption in MOF-5 mixed/modified with Pt catalysts had fast kinetics, correlated well with surface area, and was on the same level as for unmodified MOF-5. New nanostructured carbon materials were synthesized by the reaction between fullerene C60 and coronene/anthracene. Despite negligible surface area these materials adsorbed up to 0,45wt.% of hydrogen at ambient temperatures. The reaction of fullerene C60 with hydrogen gas was studied at elevated temperatures and hydrogen pressures. In situ gravimetric monitoring of the reaction was performed i, Sökandet efter nya material för vätelagring är viktigt för utveckling av framtida väteenergitillämpningar. I denna avhandling visas att nya material med intressanta egenskaper kan syntetiseras genom reaktion av väte med olika nanokolprekursorer. Avhandlingen består av två delar. Den första delen ägnas åt studier av vätelagring i vissa metall-organiska fackverk (så kallade MOFs) och nanostrukturerade kolmaterial medan den andra delen beskriver syntes av nya material genom reaktion av vätgas med olika kolmaterial (dvs. fulleren C60, enkelväggiga kolnanorör (SWCNTs) och fulleren C60 kapslat i SWCNTs (C60 @ SWCNTs)). Väteadsorptionen mättes för ett antal Zn- och Co-baserade MOFs vid rumstemperatur. MOFs syntetiserades med hjälp av olika metallkluster och organiska ligander för att studera effekterna av olika yta, porvolym och porformer på vätelagringsparametrarna. Väteadsorptionsvärden i de studerade MOFs korrelerade väl med yta och porvolym, men översteg inte 0,75wt.%. Därför undersöktes nya metoder för att förbättra kapaciteten för vätelagring i MOFs. Tillsättning av metallkatalysatorer har tidigare rapporterats avsevärt förbättra vätelagring i MOFs. I denna avhandling kunde effekten av en tillsats av Pt-katalysator på väteadsorption i MOF-5 inte bekräftas. I motsats till tidigare rapporter hade väteadsorption i MOF-5 blandad/modifierad med Pt-katalysatorer snabb kinetik och korrelerade väl med arean, men var på samma nivå som för omodifierad MOF-5. Nya nanostrukturerade kolmaterial syntetiserades genom reaktion mellan fulleren C60 och coronene/antracene. Trots försumbar yta adsorberade dessa material upp till 0,45wt.% väte vid rumstemperatur. Reaktionen av fulleren C60 med vätgas studerades vid förhöjda temperaturer och vätetryck. In situ gravimetrisk övervakning av reaktionen utfördes i ett brett temperaturintervall med/utan tillsats av metallkatalysatorer (dvs. Pt och Ni). Reaktionen resulterade i syntes av hydrogenerade fullerener C60Hx (med x≤56) följt av fragmen

The search for new materials for hydrogen storage is important for the development of future hydrogen energy applications. In this Thesis, it is shown that new materials with interesting properties can be synthesized by the reaction of hydrogen with various nanocarbon precursors. The thesis consists of two parts. The first part is devoted to studies of hydrogen storage in some metal-organic frameworks (MOFs) and nanostructured carbon materials, while the second part describes synthesis of new materials by the reaction of hydrogen gas with various carbon materials (i.e. fullerene C60, single-walled carbon nanotubes (SWCNTs), and fullerene C60 encapsulated inside SWCNTs (C60@SWCNTs)). Hydrogen adsorption was measured for a set of Zn- and Co-based MOFs at near ambient temperatures. MOFs synthesized using different metal clusters and organic connecting ligands allowed to study effects of different surface area, pore volume, and pore shapes on hydrogen storage parameters. Hydrogen adsorption values in the studied MOFs correlated well with surface area and pore volume but did not exceed 0,75wt.%. Therefore, new methods to improve the hydrogen storage capacity in MOFs were investigated. The addition of metal catalysts was previously reported to improve significantly hydrogen storage in MOFs. In this thesis the effect of Pt catalyst addition on hydrogen adsorption in MOF-5 was not confirmed. Contrary to previous reports, hydrogen adsorption in MOF-5 mixed/modified with Pt catalysts had fast kinetics, correlated well with surface area, and was on the same level as for unmodified MOF-5. New nanostructured carbon materials were synthesized by the reaction between fullerene C60 and coronene/anthracene. Despite negligible surface area these materials adsorbed up to 0,45wt.% of hydrogen at ambient temperatures. The reaction of fullerene C60 with hydrogen gas was studied at elevated temperatures and hydrogen pressures. In situ gravimetric monitoring of the reaction was performed i, Sökandet efter nya material för vätelagring är viktigt för utveckling av framtida väteenergitillämpningar. I denna avhandling visas att nya material med intressanta egenskaper kan syntetiseras genom reaktion av väte med olika nanokolprekursorer. Avhandlingen består av två delar. Den första delen ägnas åt studier av vätelagring i vissa metall-organiska fackverk (så kallade MOFs) och nanostrukturerade kolmaterial medan den andra delen beskriver syntes av nya material genom reaktion av vätgas med olika kolmaterial (dvs. fulleren C60, enkelväggiga kolnanorör (SWCNTs) och fulleren C60 kapslat i SWCNTs (C60 @ SWCNTs)). Väteadsorptionen mättes för ett antal Zn- och Co-baserade MOFs vid rumstemperatur. MOFs syntetiserades med hjälp av olika metallkluster och organiska ligander för att studera effekterna av olika yta, porvolym och porformer på vätelagringsparametrarna. Väteadsorptionsvärden i de studerade MOFs korrelerade väl med yta och porvolym, men översteg inte 0,75wt.%. Därför undersöktes nya metoder för att förbättra kapaciteten för vätelagring i MOFs. Tillsättning av metallkatalysatorer har tidigare rapporterats avsevärt förbättra vätelagring i MOFs. I denna avhandling kunde effekten av en tillsats av Pt-katalysator på väteadsorption i MOF-5 inte bekräftas. I motsats till tidigare rapporter hade väteadsorption i MOF-5 blandad/modifierad med Pt-katalysatorer snabb kinetik och korrelerade väl med arean, men var på samma nivå som för omodifierad MOF-5. Nya nanostrukturerade kolmaterial syntetiserades genom reaktion mellan fulleren C60 och coronene/antracene. Trots försumbar yta adsorberade dessa material upp till 0,45wt.% väte vid rumstemperatur. Reaktionen av fulleren C60 med vätgas studerades vid förhöjda temperaturer och vätetryck. In situ gravimetrisk övervakning av reaktionen utfördes i ett brett temperaturintervall med/utan tillsats av metallkatalysatorer (dvs. Pt och Ni). Reaktionen resulterade i syntes av hydrogenerade fullerener C60Hx (med x≤56) följt av fragmen