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Abstract
One of the most important challenges in commercializing Direct Alcohol Fuel Cells (DAFCs) is the significant expense of advanced catalysts used in their anodes and cathodes and the CO poisoning of these catalysts with alcohol oxidation by-products. Alcohols oxidation reaction occurred in the anode of DAFCs. Within this study, a tripartite catalyst, comprising cerium oxide (CeO2) and lanthanum oxide (La2O3) integrated with multi-walled carbon nanotubes (MWCNTs), was synthesized through the one-step hydrothermal. The lattice configuration and form of CeO2/La2O3/MWCNTs and CeO2/La2O3 catalysts were scrutinized, alongside their efficacy in facilitating alcohol oxidation. In the methanol oxidation reaction (MOR) and ethanol oxidation reaction (EOR) processes, the CeO2/La2O3/MWCNTs nanocatalyst demonstrated an oxidation current density of 74.4 mA/cm2 at 0.55 V and 52.1 mA/cm2 at 0.64 V in scan rate of 60 mV/s, respectively. CeO2/La2O3/MWCNTs also demonstrated 98.6 % and 97.7 % stability in current density after 2000 CV cycles in the MOR and EOR processes. The inclusion of MWCNTs bolstered the catalytic reaction of the catalyst in terms of stability and current density. This proposed nano-electrocatalyst offers a novel, cost-effective, and stable alternative in contrast to methanol and ethanol oxidation.
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Authors (4)
-
Mohammad Bagher Akari
-
Parisa Salarizadeh
-
Sadegh Azizi
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Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
-
DIAMOND AND RELATED MATERIALS
no. 152,
pages 111880 - -,
ISSN: 0925-9635 - Language:
- English
- Publication year:
- 2025
- Bibliographic description:
- Akari M. B., Salarizadeh P., Tourchi Moghadam M. T., Azizi S.: CeO2/La2O3/MWCNTs as an efficient nano-electrocatalyst for use in the anode of alcohol fuel cells// DIAMOND AND RELATED MATERIALS -,iss. 152 (2024), s.111880--
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.diamond.2024.111880
- Sources of funding:
-
- Free publication
- Verified by:
- Gdańsk University of Technology
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