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Phytic acid (PA) was used as a dopant for polyaniline (PANI) to prepare a series of phytic acid-doped polyaniline composites (PA/PANI) by varying the doping mass ratio of PA to PANI (m(PA)/m(PANI)). Then PA/PANI were employed to fabricate an intelligent anticorrosive coating with photothermal conversion capability for self-healing. The dispersion of PA/PANI in the coating was investigated, and the influence of m(PA)/m(PANI) and PA/PANI loading (w(PA/PANI)) on the anticorrosive and self-healing properties of the coating was studied using scanning electron microscopy, electrochemical impedance spectroscopy, and neutral salt spray tests. Results demonstrate that the incorporation of PA/PANI significantly enhances the adhesion, anticorrosive performance, and self-healing capability of the coating, achieving a synergistic effect. When m(PA)/m(PANI) is 10 and w(PA/PANI) is 1%, the dispersion of PA/PANI in the coating is optimal, and the pull-off adhesion strength of the coating is increased from 2.06 MPa to 3.48 MPa. After immersion in a w=3.5% NaCl solution for 28 d, the low frequency impedance at 0.1 Hz(|Z|0.1 Hz ) of the intact coating is two orders of magnitude higher than that of the pure resin coating, and no corrosion is observed during the 800 h salt spray test. Following just 10 s of near-infrared light irradiation, the scratches on the coating surface almost completely disappear, and its barrier properties are effectively restored. As a result, it can withstand a 400 h neutral salt spray test, with the |Z|0.1 Hz value increasing from 6.58×105 Ω·cm² to 2.25×108 Ω·cm². In contrast, the scratch width of the pure resin coating remains largely unchanged, being accompanied by obvious signs of corrosion. [ABSTRACT FROM AUTHOR]

In this paper, PANI/CNTs composite materials were prepared by emulsion polymerization with sodium dodecyl benzene sulfonate (SDBS) and Tween-80 (Tween-80) as soft templates, ammonium persulfate (APS) as oxidant, and carbon nanotubes (CNTs) mixed with appropriate amount. The composite materials were characterized by scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR). The results show that PANI/CNTs composites present core-shell structure with fiber shape, and PANI materials cover the surface of CNTs uniformly. The electrochemical test results show that the specific capacitance of PANI/CNTs electrode is 478.48 F/g at the current density of 1.0 A/g. After 1 000 cycles, the specific capacitance retention rate of PANI/CNTs is 70.01%, while that of PANI prepared by traditional method is only 49.10%. The specific capacitance of PANI/CNTs composites obtained by emulsion polymerization is higher than that of PANI single material obtained by traditional method, and the cycle life is significantly improved. This method provides an important strategy for the preparation of electrode materials of high-performance supercapacitors. [ABSTRACT FROM AUTHOR]

Copyright of Advanced Textile Technology is the property of Zhejiang Sci-Tech University Magazines and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Polyaniline (PANI), a polymer material exhibiting exceptional electrical conductivity, has garnered widespread application in electrochromic devices and supercapacitors. While PANI effectively demonstrates an electrochromic effect within the visible light band (400-780 nm), its adjustability in the near-infrared band (above 780 nm) remains limited. Consequently, its temperature control capabilities require enhancement. To address this, tungsten oxide dihydrate (WO3· 2H2O), a cathode discoloration material, was integrated with PANI to bolster its ability to regulate light transmittance in the near-infrared band. In this study, the WO3·2H2O@PANI composite film was fabricated utilizing the spin-coating method, and its surface morphology and electrochromic properties were thoroughly examined. Our findings reveal that the electrochromic performance of the WO3·2H2O@PANI composite film has been significantly improved in the near-infrared band. Furthermore, it exhibits a stronger bonding force with the ITO glass surface, thereby enhancing both its electrochemical and optical stability. [ABSTRACT FROM AUTHOR]

In order to prepare high-performance and low-cost electrode materials, nickel ion-doped polyANI-coated biomass carbon composite materials (Ni@ PANI/BC) were synthesized by chemical oxidation polymerization using August melon peel biomass carbon (BC) as the matrix, and nickel nitrate and aniline as raw materials. The structures of the Ni@ PANI/BC composites were characterized by SEM, EDS, X-ray photoelectron energy spectrum (XPS), thermal weight analysis (TG) and specific surface area test (BET), and the electrochemical properties of the composites were measured by cyclic voltammetry (CV), constant current charge and discharge (GCD) test and electrochemical impedance spectroscopy (EIS). The effects of nickel ion doping on the structure and electrochemical properties of Ni@ PANI/BC were investigated. It is shown that nickel ion doped BC forms a porous cross-linked mesh porous structure with large specific surface area and good electrical conductivity. When the mass ratio of nickel hydrate nitrate, aniline and BC is 1. 5∶5∶3, the obtained electrode material has the best electrochemical performance. At 1 A/g current density, Ni@ PANI/BC mass capacitance is up to 608. 4 F/g, 5 000 cycles with a capacity retention rate of 85. 4%, which demonstrates Ni@ PANI/BC materials have electrochemical properties comparable to the relevant materials reported in the literature. [ABSTRACT FROM AUTHOR]

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Copyright of Advanced Textile Technology is the property of Zhejiang Sci-Tech University Magazines and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

To investigate the electrocatalytic degradation effect of anthracene in coking wastewater, Ti/PbO2, Ti/PANI/PbO2 and Ti/PANI/PbO2-Ce electrodes were prepared by electrodeposition, and the electrodes were subjected to scanning electron microscopy and X-ray diffraction characterization, electrochemical performance test, hydroxyl radical (·OH) production capacity test and accelerated lifetime test.The results showed that the Ti/PANI/PbO2-Ce electrode modified with polyaniline (PANI) and cerium (Ce) had better surface morphology and higher catalytic activity, and could produce more ·OH with an oxygen precipitation potential of 1.83 V and an accelerated lifetime of 720 min.The Ti/PANI/PbO2-Ce electrode was used for the degradation of anthracene in coking wastewater, and the effects of the main factors on the degradation effect were investigated, and the optimal degradation conditions for anthracene were obtained as voltage 14 V, plate spacing of 1.0 cm, electrolyte concentration of 0.35 mol/L, reaction time of 120 min, pH value of 10.The Ti/PANI/PbO2-Ce electrode showed good electrocatalytic performance.

For improving the anti-corrosion performance and durability of waterborne epoxy coatings in high-salt， high-humidity marine environments， polyaniline/boron nitride nanoparticles (PBN) were prepared by the in-situ polymerization of polyaniline (PANI) on the surface of hydroxylated hexagonal boron nitride (BN).In addition， PBN were used as anti-corrosion filler to enhance the anti-corrosion performance of waterborne epoxy coatings.The structure and micro-morphology of nano-particles were characterized by Fourier transform infrared spectroscopy(FT-IR) and scanning electron microscopy (SEM).Moreover， electrochemical tests and neutral salt spray tests (NSS) were used to explore the effects of BN， PANI modifications and PBN addition amount on the anti-corrosion performance of waterborne epoxy coatings.Results showed that PANI grew in situ on the surface of BN nanosheets to form a coral-like structure， and the bonding strength of waterborne epoxy coating reached 6.05 MPa after adding 0.50%(mass fraction，the same below) PBN.The corrosion current density (1.99×10-9 A/cm2) of the composite coating immersed in 3.5%NaCl solution after 120 h was reduced by about 3 orders of magnitude compared to that of pure epoxy coating (1.01×10-6 A/cm2).This was attributed to the fact that the addition of 0.50%PBN could evenly disperse in the epoxy resin， fill small gaps in the coating and enhance the barrier effect against corrosive medium.Meanwhile， PANI had a corrosion inhibition effect， which could synergistically improve the anti-corrosion performance of pure epoxy coatings.

Wearable electronic devices are portable gadgets worn either directly on the body or embedded in clothing or accessories. They offer functionalities across several domains such as medical health, outdoor sports, video and audio entertainment. Advancements in science and technology have led to electronic components being combined with flexible substrates, facilitating the development of wearable electronics in a more flexible and lightweight direction. This is beneficial to enhancing individuals’ quality of life. Flexible wearable technology offers significant advantages such as flexibility, easy deformation, and good biological adaptability. However, there are also issues such as low sensitivity, limited detection range, and weak reliability resulting from environmental interference. The flexible pressure sensor plays a significant role in pressure detection within these devices. Therefore, the key to the development of flexible wearable devices lies in the advancement of flexible pressure sensors with outstanding performance. Flexible pressure sensors merge the suppleness of wearable materials with the electrical activity of electronic components, and can be attached to irregular surfaces to efficiently detect the pressure on the surface of objects. The selection of substrates and conductive materials will have a direct impact on the sensing performance of the flexible pressure sensor. Silk is a biological material with a lengthy history, possessing exceptional tensile strength and toughness, biocompatibility, biodegradability, and effortless processing, making it an ideal material for flexible sensors. Based on the features of silk processing and molding, it can be categorized into natural silk-based materials, regenerated silk protein materials, and silk primary fibers and aggregates. Consequently, in this study, three types of silk materials including silk fabric, flat silk cocoon, and electrospun silk fibroin film are selected as flexible substrates to develop the flexible sensors. Polyaniline (PANI), a unique conductive polymer, exhibits electrical conductivity when acid-doped and oxidized; however, it lacks conductivity when either completely oxidized or completely reduced. The gas-liquid interface polymerization process restricts the synthesis of PANI to the two-phase interface, ensuring controlled reaction degree to prevent over-oxidization of aniline. Additionally, it prevents secondary growth, resulting in PANI that exhibits uniform morphology. Herein, on the basis of the above analysis, the gas-liquid interface polymerization method was utilized to achieve in-situ growth of PANI on silk fabric, flat silk cocoon, and electrospun silk fibroin film, prepare a flexible substrate with PANI as an active conductive substance and assemble it into a flexible pressure sensor, so as to explore the changes in the properties of silk materials before and after the gas-liquid interface polymerization and the performance of the flexible pressure sensor based on silk. This study presents a novel approach and theoretical foundation for creating wearable electronic devices with optimal performance, safety, dependability, and effortless portability. The study demonstrates that among the three types of silk-based flexible pressure sensors, the SFP sensor has the largest pressure sensing range（16.27-504.79 kPa）, the tensile deformation can reach 20%, while the sensitivity is only 0.001 29 kPa-1. The sensitivity of the ESFP sensor is the highest(0.013 76 kPa-1), but the tensile deformation ability is poor, only being 2.3%. The pressure detection sensitivity of the SFCP sensor is slightly higher than that of the SFP sensor, reaching 0.001 34 kPa-1, and the linear detection range is 9.8-87.6 kPa. The developed silk-based flexible pressure sensor has a good application prospect in the field of motion detection, but it still requires external power supply, which will limit the flexibility and convenience of wearable devices. Therefore, the future research direction can be to combine the silk-based flexible pressure sensor developed in this study with self-powered devices and develop an integrated intelligent detection system. This can provide a broader perspective for intelligent pressure detection. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Mining Science & Technology is the property of Journal of Mining Science & Technology Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Polyaniline, as one of the most widely studied conductive polymer materials, has been widely used in many fields. The chemical synthesis experiment of polyaniline is a representative experiment in the teaching of materials chemistry and related subjects. However, this experiment has several shortcomings, such as the high sensitivity of product properties to solvent selection, dopant types, reaction time, temperature, limited characterization methods, unstable yield, and poor reproducibility. This experiment is an improvement of the "Chemical Synthesis of Polyaniline" experiment, where the original chemical synthesis method is replaced with an electrochemical synthesis method. It combines instrumental analysis experiments such as "Cyclic Voltammetry Analysis" and open-ended experiments such as "Preparation of Anticorrosive Coatings" to transform it from a confirmatory preparation experiment to an innovative design experiment that integrates autonomous selection of preparation conditions and testing of anticorrosive properties. This allows students to learn the synthesis, doping, and related electrochemical knowledge of polyaniline in a coherent manner, leading to a clearer understanding of the wide-ranging applications of conductive polymers. This improved experiment is rich in content and better aligns with the development of modern chemistry and materials science, helping students integrate theoretical knowledge from multiple courses and enhance their comprehensive skills. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Fuzhou University is the property of Journal of Fuzhou University, Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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The research status of electrospining PANI based nanofiber in different fields was summarized. The application progress of PANI based nanofiber in sensor, smart wearable, supercapacitor, bio-medical, adsorption, oilwater separation and organic matter degradation were introduced. The property of electrospining PANI nanofiber and the problems in the preparation process were analyzed. The results showed that the nanofiber made of PANI by electrospinning could improve the property of PANI material. Compared with traditional PANI material, PANI nanofiber had larger specific surface area, higher surface energy and activity, and easy to bond with other atoms. In the future, PANI could be effectively combined with other materials through chemical modification, blending spining, post-treatment and other methods to expand its application range. [ABSTRACT FROM AUTHOR]

In order to enhance the physical barrier performance of polyaniline(PANI)/polyurethane(PU) coating against corrosive medium, the introduction of two-dimensional material in the coating is one of the effective methods. PU coating matrix was synthesized from 2, 4-diisocyanate (TDI) and 3, 3′-dichloro-4, 4′-diamino diphenylmethane(MOCA), and MXene@PANI was synthesized by intercalation reaction of PANI with Ti3C2Tx.Then protective coating of MXene@PANI/PU was obtained by adding MXene@PANI into PU. The results show that when the mass ratio of MXene/PANI is 1∶1, no obvious corrosion occurs on the surface of the MXene@PANI/PU coating after 60 days of salt spraying. The corrosion current is 3.709×10-9 A·cm-2, and the impedance modulus is 1.93×108 Ω·cm2. The reason is that MXene improves the electrochemical activity of PANI and thus enhances the electrochemical anticorrosion performance of PANI. On the other hand, MXene nanoplates as a two-dimensional barrier can prevent the corrosive medium from entering into the coating, which improves the long-term protective performance of the coating.

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The development of energy storage devices that can withstand large and complex deformation is crucial for emerging wearable electronic devices. At present, hydrogels made of conductive polymers have achieved the fusion of high conductivity and versatility during processing. A simple two-step copolymerization method was used to successfully construct a hydrogel supercapacitor with a rich microporous structure: polyvinyl alcohol(PVA) and polyacrylamide(PAM) form a double cross-linked network hydrogel, which endows rigid polymer aniline with flexibility. In addition, polyacrylamide improves the mechanical strength of polyaniline-based hydrogels, making polyaniline-based(NPP)hydrogels have good mechanical and electrochemical properties, and the tensile strength and specific capacitance are 0.3 MPa and 269.12 F·g-1 under 1 A·g-1, respectively. The addition of polyaniline(PANI) reduces the internal resistance of polyvinyl alcohol and polyacrylamide double cross-linked network hydrogel(PP) electrode, and its modified resistance value is 39.184 Ω, which makes the NPP hydrogel realize higher electron transmission capacity. The flexible development and integration of such hydrogels provide an alternative strategy of energy systems for diverse applications such as supercapacitors.

The development of materials with high electromagnetic shielding effectiveness is of great significance for reducing electromagnetic interference and electromagnetic radiation hazards.Para-aramid fabric was used as the matrix material, and the Ag/PANI/aramid electromagnetic shielding fabric with high electromagnetic shielding effectiveness was prepared by constructing polyaniline (PANI) nanowires and nano-silver on its surface. The presence of polyaniline nanowires not only increases the surface roughness of the aramid fiber surface, but also increases the fastness of the silver coating due to the synergistic interaction between polyaniline and silver ions. The results show that the prepared Ag/PANI/aramid electromagnetic shielding fabric has good electromagnetic shielding effectiveness, up to 61.0 dB, and the fabric still maintains good electrical conductivity and high electromagnetic shielding effectiveness after being washed and bent 1000 times. This confirms that the constructed Ag/PANI has good fastness. Furthermore, it has good heat resistance and corrosion resistance, which can be used in various harsh conditions, and has broad application prospects.

A diethylenetriamine-modified graphene oxide/acidized carbon nanotube/polyaniline (DGO/ACNT/PANI) composite was prepared by in-situ polymerization with aniline as monomer and the mixture of DGO and ACNT. Its morphology was then characterized by transmission electron microscopy (TEM). A composite coating was prepared with waterborne epoxy emulsion (EP) as binder and the DGO/ACNT/PANI composite as filler on the surface of Q235 steel. The electrical resistivity of the composite coating was tested by four probe apparatus. The corrosion resistance of the composite coating was studied by potentiodynamic polarization curve measurement and neutral salt spray test, and its mechanical properties were tested. The results showed that the DGO/ACNT/PANI/EP composite coating demonstrated better conductivity, anticorrosion, and mechanical properties as compared with the composite coatings prepared with unmodified GO and unacidized CNT. The DGO/ACNT/PANI/EP composite coating had a volume resistivity 0.36 Ω·m, 0-grade adhesion, pencil hardness 2H, flexibility 5 mm, and excellent resistance to salt spray corrosion. [ABSTRACT FROM AUTHOR]

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Microencapsulated phase change materials（MePCMs） with polyaniline（PANI） as shell material are a kind of important multifunctional MePCMs. In order to broaden the source of functionalized MePCMs with PANI shell, in this work, tetradecanol（TD） was selected as core material and a series of TD@PANI MePCMs were prepared via a simple surface polymerization of aniline in the TE/water suspension. The effects of emulsifiers and core shell mass ratio on the properties of the prepared MePCMs were investigated. The results showed that the addition of emulsifier was unfavorable to the formation of TD@PANI MePCMs. The encapsulation ratio and spherical regularity of the obtained MePCMs prepared in the reaction system without emulsifier were increased first and then decreased with the increase of the core shell mass ratio, and the best result was obtained when the core shell mass ratio was 4.8∶5.2. The onset phase change temperature of the MePCM prepared under optimal condition was 32.44 ℃ with a phase change enthalpy of 102.3 J/g and a encapsulation ratio of 46.4%. Besides, the prepared MePCM possesses good thermal stability. In addition, the chemical properties and crystal structure of the tetradecanol core material did not change after it being microencapsulated by PANI. The results of this study can build a solid foundation for the development of multifunctional MePCMs with PANI shell. [ABSTRACT FROM AUTHOR]

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In this experiment, polyaniline was doped with different concentrations of hydrochloric acid, and polyaniline was grown on the PVA/Paam composite multi-network hydrogel by in-situ polymerization. Chemical properties, pressure sensitive properties and photosensitive properties of the composite multi-network hydrogel at the optimal doping concentration were investigated. The polyaniline powder was characterized by FT-IR spectrum, UV spectrum, SEM and XRD. The performance of the composite multi-network hydrogel was tested by charge-discharge test, cyclic voltammetry test, chronoamperometry, potentiometric dissolution analysis method, and different wavelengths of monochromatic light irradiation. In the electrochemical test, it was determined that when the doping concentration of hydrochloric acid was 0.5 mol/L, the electrochemical performance of the multi-network hydrogel supercapacitor was the best, the charging and discharging time was the longest, and the area specific capacitance was 412.5 mF/cm². In the pressure sensitive performance test, I-T and V-T curves with obvious peaks were obtained, and the amplitude and period of the peak shape corresponded to the exercise intensity and frequency one-to-one. In the photosensitivity test, it was determined that the multi-network hydrogel had the best photosensitivity when doped with 0.35 mol/L hydrochloric acid. It shows that the prepared hydrogel has good electrochemical properties, pressure-sensitive properties and photosensitivity properties at the same time, and has broad prospects in the application of supercapacitors, photosensitive materials and sensors. [ABSTRACT FROM AUTHOR]

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For studying the effects of different addition ways of graphene on the properties of polyaniline/epoxy coatings, the in - situ polymerization method was applied to synthesize polyaniline (PANI)/graphene(G) composite powders on graphene surface, and the as - prepared powders were characterized by X - ray diffractometer, Fourier transform infrared spectrometer and scanning electron microscope. The as - synthesized composite powders, the mixed powders of PANI and G, and the PANI powders were uniformly dispersed in epoxy resin respectively to prepare coatings on the surface of AZ91D magnesium alloy. Subsequently, the effects of different graphene addition methods on the properties of polyaniline/epoxy coatings were studied through electrochemical impedance measurement, water absorption, etc. Results showed that after an immersion within 2 160 h in 3.5% (mass fraction) NaCl solution, the coating added with PANI/G composite powders not only had a higher impedance value in comparision with those added with PANI powders or with PANI/G powders, but also had better flexibility and impact resistance. Compared with the mixed powders of PANI and G, the PANI/G composite powders obtained through in - situ polymerization could better exhibit the shielding effect of G and the corrosion inhibition effect of PANI, and therefore provid better protection to magnesium alloy.

In view of the problems of PANI adsorbent loss and difficulty in recycling, polyaniline (PANI) /polyvinyl alcohol (PVA) composites prepared by in-situ chemical oxidation polymerization and its morphology and structure were characterized. The adsorption properties and adsorption mechanisms of PANI/PVA composites on methylene blue (MB) under different conditions and the regenerative properties of the adsorbent were analyzed. The results showed that: the optimum effective dosage of PANI/PVA composites to adsorb MB was 1.19 g/L, and the adsorption removal rate was above 80% at pH=9~13, and the adsorption equilibrium time was only 60 minutes. The adsorption process of MB by PANI/PVA composites conformed to the pseudo-second-order model and Langmuir isotherm model, which indicated that the adsorption process was single-layer chemical adsorption, and the maximum effective adsorption of fitting is 352.2 mg/g; PANI/PVA composites still have good adsorption properties after 5 cycles of regeneration experiments.

Electromagnetic (EM) pollution has become the fourth largest pollution after air pollution, water pollution and noise pollution. Using of EM absorbing materials is an effective way to solve electromagnetic pollution problem, due to their absorption and attenuation characteristics. Polyaniline (PANI), as a kind of resistance loss absorbing material, can meet the development concept of "thin thickness" and "light mass" of absorbing materials. However, its absorbing performance is not ideal due to its poor impedance matching, ferrite, as a kind of traditional magnetic loss-type absorbing material, is limited in its application range due to its high density. The high-density ferrite and low-density polyaniline composite wave-absorbing material can not only adjust the density of the composite material, but also improve the impedance matching, and the wave-absorbing performance of the ferrite/polyaniline composite. In this paper, the preparation methods of polyaniline and ferrite/polyaniline composites were discussed firstly. Secondly, the absorbing mechanism of ferrite/polyaniline composites was expounded. Then, the research progress of composite materials prepared by spinel type, magnetic lead type, garnet type ferrite and polyaniline in the field of wave absorption was summarized, respectively. Finally, the future development directions of ferrite/polyaniline composites were pointed that they should tend to electromagnetic simulation and multi-element composites.

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Copyright of China Plastics / Zhongguo Suliao is the property of Journal Office of CHINA PLASTICS and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Polyaniline (PANI) doped with different acids i.e. hydrochloric acid, sulfuric acid, phosphoric acid, phytic acid, methanesulfonic acid, dodecylbenzenesulfonic acid, and intrinsic polyaniline were prepared and coded as HCl-PANI, H2SO4-PANI, H3PO4-PANI, PA-PANI, MSA-PANI, DBSA-PANI, and EB-PANI, respectively. The microstructure and morphology of the polyaniline materials were characterized by Fourier-transform infrared spectroscopy, ultraviolet-visible spectrophotometry, X-ray diffraction, Raman spectroscopy, and scanning electron microscopy. The polyaniline materials were added to an epoxy resin and then coated on the surface of Q235 carbon steel to form different polyaniline/epoxy (PANI/EP) coatings. The pencil hardness, adhesion, and wettability of PANI/EP coatings were tested, and their corrosion resistance in 3.5% NaCl solution was studied by electrochemical impedance spectroscopy. The effects of the dosage and doping acid of PANI on the corrosion resistance of PANI/EP coating were discussed. The results showed that all the seven types of PANI had a coral-like morphology. The anticorrosion performance of epoxy coating was improved to various degrees by addition of different PANI materials, especially HCl-PANI and PA-PANI. The optimal dosage of PANI was 0.6% by mass. [ABSTRACT FROM AUTHOR]

The treatment of refractory organic wastewater pollution is a focus issue related to the national economy and the people′s livelihood. Electrochemical oxidation has attracted much attention in many wastewater treatment technologies because of its clean, efficient and flexible characteristics. Anode is the core of electrochemical oxidation, which determines the efficiency and cost of this technology. In recent years, with the development of anode materials, a new anode form, Magnetically Assembled Electrode (MAE), has emerged, which is between the traditional two-dimensional electrode and three-dimensional electrode. Its essence is a modular electrode, which uses a magnet to adsorb the magnetic sub electrode material on the two-dimensional main electrode, endows the electrode with a large number of catalytic active sites, makes the electrode have diversity, flexible and adjustable performance and good recyclability, and has the potential of stable and efficient treatment of dynamic wastewater. In this paper, flake magnetic cellulose nanofiber polyaniline composites (CNFs/PANI) are used as secondary electrode, typical DSA electrode Ti/PbO2 is used as main electrode, and a new MAE with good adsorption and degradation properties of azo dyes is constructed by combining adsorbent and electrocatalyst, so as to improve the efficiency of azo dye wastewater treatment. Taking the typical azo dye acid red g as the target, the electrochemical properties of the new MAE and the degradation effect of acid red g simulated wastewater were investigated. The results show that compared with the traditional two-dimensional Ti/PbO2 anode, the new MAE has more adsorption catalytic active sites and higher electrocatalytic activity. Due to the easy enrichment of acid red g to the surface of the new MAE, the new MAE can maintain high dye degradation efficiency even when the dye concentration decreases in the later stage of the degradation process. [ABSTRACT FROM AUTHOR]

Copyright of Electronic Components & Materials is the property of Electronic Components & Materials and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Energy Chemical Industry is the property of Energy Chemical Industry Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Conductive polyaniline has great application potential as a corrosion inhibitor in metal anti-corrosion field due to good chemical stability, electrical conductivity and adsorption. However, the poor solubility of polyaniline has severely limited its application as a corrosion inhibitor, so the effective improvement of solubility and enhancing the adsorption performance on the metal surface are the research focuses as a polyaniline corrosion inhibitor. The structural properties and corrosion inhibition mechanisms of conductive polyaniline were introduced, particularly, the modification methods such as small molecule acid-doped modification, linear macromolecular acid-doped modification, aniline derivative copolymerization modification, composite modification, low molecular weight modification and synergistic effect modification were reviewed, the advantages and disadvantages of different modification methods were briefly analyzed, in order to provide a reference for the subsequent modifications of conductive polyaniline. [ABSTRACT FROM AUTHOR]

Copyright of Acta Materiae Compositae Sinica is the property of Acta Materiea Compositae Sinica Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The polyaniline/carbon nanotubes composites are prepared by in-situ electrochemical polymerization of polyaniline (PANI) on the surface of carbon nanotubes (MWCNTs). The morphology of the prepared composites is characterized by scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). It is found that the PANI/MWCNTs composites have a fibrous structure. The electrochemical properties of the composites are investigated by cyclic voltammetry (CV) and chronopotentiometry (CP). The specific capacitance of materials is investigated by modulating pipe diameter of multi-walled carbon nanotube and thickness of polyaniline. It is found that the specific capacitance of polyaniline/carbon nanotubes composite could reach 147.6 F/g with 50 nm pipe diameter of carbon nanotubes and 5 cycles for the deposition of polyaniline when the current density is 0.5 mA/cm~2. These studies would provide scientific guidance and theoretical basis for the preparation of polyaniline/carbon nanotubes supercapacitor materials. [ABSTRACT FROM AUTHOR]