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118 results on '"Duangdangchote, Salatan"'

11. Insertion of MXene‐Based Materials into Cu–Pd 3D Aerogels for Electroreduction of CO 2 to Formate

Author

Abdinejad, Maryam, primary, Subramanian, Siddhartha, additional, Motlagh, Mozhgan Khorasani, additional, Noroozifar, Meissam, additional, Duangdangchote, Salatan, additional, Neporozhnii, Ihor, additional, Ripepi, Davide, additional, Pinto, Donato, additional, Li, Mengran, additional, Tang, Keith, additional, Middelkoop, Joost, additional, Urakawa, Atsushi, additional, Voznyy, Oleksandr, additional, Kraatz, Heinz‐Bernhard, additional, and Burdyny, Thomas, additional

Published
2023
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12. Electroreduction of Carbon Dioxide to Acetate using Heterogenized Hydrophilic Manganese Porphyrins

Author

Abdinejad, M. (author), Yuan, T. (author), Tang, Keith (author), Duangdangchote, Salatan (author), Iglesias van Montfort, H.P. (author), Li, Mengran (author), Middelkoop, J. (author), Wolff, M.J. (author), Burdyny, T.E. (author), Abdinejad, M. (author), Yuan, T. (author), Tang, Keith (author), Duangdangchote, Salatan (author), Iglesias van Montfort, H.P. (author), Li, Mengran (author), Middelkoop, J. (author), Wolff, M.J. (author), and Burdyny, T.E. (author)

Abstract

The electrochemical reduction of carbon dioxide (CO2) to value-added chemicals is a promising strategy to mitigate climate change. Metalloporphyrins have been used as a promising class of stable and tunable catalysts for the electrochemical reduction reaction of CO2 (CO2RR) but have been primarily restricted to single-carbon reduction products. Here, we utilize functionalized earth-abundant manganese tetraphenylporphyrin-based (Mn-TPP) molecular electrocatalysts that have been immobilized via electrografting onto a glassy carbon electrode (GCE) to convert CO2 with overall 94 % Faradaic efficiencies, with 62 % being converted to acetate. Tuning of Mn-TPP with electron-withdrawing sulfonate groups (Mn-TPPS) introduced mechanistic changes arising from the electrostatic interaction between the sulfonate groups and water molecules, resulting in better surface coverage, which facilitated higher conversion rates than the non-functionalized Mn-TPP. For Mn-TPP only carbon monoxide and formate were detected as CO2 reduction products. Density-functional theory (DFT) calculations confirm that the additional sulfonate groups could alter the C−C coupling pathway from *CO→*COH→*COH-CO to *CO→*CO-CO→*COH-CO, reducing the free energy barrier of C−C coupling in the case of Mn-TPPS. This opens a new approach to designing metalloporphyrin catalysts for two carbon products in CO2RR., ChemE/Materials for Energy Conversion and Storage, ChemE/O&O groep, QN/Kavli Nanolab Delft

Published
2023
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13. Exploring the impact of metal oxide coating and metal atom doping on the electrochemical performance of Ni-rich cathode materials.

Author

Bunyanidhi, Panyawee, Phattharasupakun, Nutthaphon, Duangdangchote, Salatan, Prempluem, Surat, Joraleechanchai, Nattanon, and Sawangphruk, Montree

Abstract

In this research, we systematically examine the impact of atomic cation dopants and metal oxide coatings, including their respective oxidation states, on the electrochemical performance of Ni-rich NCA90 cathode materials. The study reveals that dopants exhibiting varied oxidation states, derived from high annealing temperatures, can efficaciously mitigate H2–H3 phase transitions, thereby amplifying the structural stability of the materials. Complementary Density Functional Theory (DFT) calculations corroborate that a judiciously selected dopant can enhance the electronic attributes of the cathode materials. Notably, the incorporation of a tungsten dopant is found to markedly modulate the kinetics of lithium transfer throughout the battery cycling process. This research provides vital insights into the role of cation dopants and metal oxide coatings in optimizing the electrochemical performance of Ni-rich cathode materials. [ABSTRACT FROM AUTHOR]

Published
2023
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14. Insight into the failure mechanism of large-scale cylindrical lithium–sulphur cells.

Author

Kaenket, Surasak, Duangdangchote, Salatan, Homlamai, Kan, Joraleechanchai, Nattanon, Sangsanit, Titipum, Tejangkura, Worapol, and Sawangphruk, Montree

Subjects
*LITHIUM sulfur batteries, *FAILURE mode & effects analysis, *SULFUR, *ELECTRODES
Abstract

Li–S batteries with a sulphur loading content of 5 mg cm−2 were produced as large-scale 18 650 cylindrical cells. We have found that a key failure mode of cylindrical Li–S battery cells is the severe capacity fading during the galvanostatic charge–discharge process due to the corrosion of the electrodes, the electrolyte decomposition, and the severe polysulphide shuttling effect. [ABSTRACT FROM AUTHOR]

Published
2023
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15. Electroreduction of Carbon Dioxide to Acetate using Heterogenized Hydrophilic Manganese Porphyrins

Author

Abdinejad, Maryam, primary, Yuan, Tiange, additional, Tang, Keith, additional, Duangdangchote, Salatan, additional, Farzi, Amirhossein, additional, Iglesias van Montfort, Hugo‐Pieter, additional, Li, Mengran, additional, Middelkoop, Joost, additional, Wolff, Mädchen, additional, Seifitokaldani, Ali, additional, Voznyy, Oleksandr, additional, and Burdyny, Thomas, additional

Published
2023
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17. Insertion of MXene‐Based Materials into Cu–Pd 3D Aerogels for Electroreduction of CO2 to Formate.

Author

Abdinejad, Maryam, Subramanian, Siddhartha, Motlagh, Mozhgan Khorasani, Noroozifar, Meissam, Duangdangchote, Salatan, Neporozhnii, Ihor, Ripepi, Davide, Pinto, Donato, Li, Mengran, Tang, Keith, Middelkoop, Joost, Urakawa, Atsushi, Voznyy, Oleksandr, Kraatz, Heinz‐Bernhard, and Burdyny, Thomas

Subjects
METAL catalysts, AEROGELS, ALTERNATIVE fuels, CLEAN energy, ENERGY consumption, ELECTROLYTIC reduction
Abstract

The electrochemical CO2 reduction reaction (CO2RR) is an attractive method to produce renewable fuel and chemical feedstock using clean energy sources. Formate production represents one of the most economical target products from CO2RR but is primarily produced using post‐transition metal catalysts that require comparatively high overpotentials. Here a composition of bimetallic Cu–Pd is formulated on 2D Ti3C2Tx (MXene) nanosheets that are lyophilized into a highly porous 3D aerogel, resulting in formate production much more efficient than post‐transition metals. Using a membrane electrode assembly (MEA), formate selectivities >90% are achieved with a current density of 150 mA cm−2 resulting in the highest ever reported overall energy efficiency of 47% (cell potentials of −2.8 V), over 5 h of operation. A comparable Cu‐Pd aerogel achieves near‐unity CO production without the MXene templating. This simple strategy represents an important step toward the experimental demonstration of 3D‐MXenes‐based electrocatalysts for CO2RR application and opens a new platform for the fabrication of macroscale aerogel MXene‐based electrocatalysts. [ABSTRACT FROM AUTHOR]

Published
2023
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34. Core-shell structure of LiMn2O4 cathode material reduces phase transition and Mn dissolution in Li-ion batteries.

Author

Tomon, Chanikarn, Sarawutanukul, Sangchai, Phattharasupakun, Nutthaphon, Duangdangchote, Salatan, Chomkhuntod, Praeploy, Joraleechanchai, Nattanon, Bunyanidhi, Panyawee, and Sawangphruk, Montree

Subjects
LITHIUM-ion batteries, PHASE transitions, CATHODES, LATTICE constants, TRANSITION metals, HIGH voltages, THERMAL stability
Abstract

Although the LiMn2O4 cathode can provide high nominal cell voltage, high thermal stability, low toxicity, and good safety in Li-ion batteries, it still suffers from capacity fading caused by the combination of structural transformation and transition metal dissolution. Herein, a carbon-coated LiMn2O4 cathode with core@shell structure (LMO@C) was therefore produced using a mechanofusion method. The LMO@C exhibits higher cycling stability as compared to the pristine LiMn2O4 (P-LMO) due to its high conductivity reducing impedance growth and phase transition. The carbon shell can reduce direct contact between the electrolyte and the cathode reducing side reactions and Mn dissolution. Thus, the cylindrical cell of LMO@C//graphite provides higher capacity retention after 900 cycles at 1 C. The amount of dissoluted Mn for the LMO@C is almost 2 times lower than that of the P-LMO after 200 cycles. Moreover, the LMO@C shows smaller change in lattice parameter or phase transition than P-LMO, indicating to the suppression of λ-MnO2 phase from the mixed phase of Li1-δMn2O4 + λ-MnO2 when Li-delithiation at highly charged state leading to an improved cycling reversibility. This work provides both fundamental understanding and manufacturing scale demonstration for practical 18650 Li-ion batteries. Its high nominal voltage, thermal stability, and low toxicity render LiMn2O4 a highly promising cathode material for lithium ion batteries, but capacity fading due to unwanted side reactions during cycling remains an issue. Here, the authors show that carbon-coating a LiMn2O4 cathode reduces side reactions such as manganese dissolution and manganese oxide formation, thereby improving battery cycling stability. [ABSTRACT FROM AUTHOR]

Published
2022
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