Edgar Valenzuela, Victor Ramos-Sanchez, Alejandro Adolfo Lambert Arista and Oumarou Savadogo
Article (2013)
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Abstract
Nowadays, one of the major issues of the PEMFC concerns the durability. Historically, carbon has been used as a catalyst support in PEMFC; nevertheless, under the environmental conditions of the cell, the carbon is oxidized, leaving the catalyst unsupported. In order to increase the stability and durability of the catalyst in the PEMFC, a novel nanostructured metallic oxide support is proposed. In this work, TiO2 was doped with Nb to obtain a material that combines chemical stability, high surface area, and an adequate electronic conductivity in order to be a successful catalyst support candidate for long-term PEMFC applications. The TiO2-Nb nanostructured catalyst support was physically and electrochemically characterized. According to the results, the TiO2-Nb offers high surface area and good particle dispersion; also, the electrochemical activity and stability of the support were evaluated under high potential conditions, where the TiO2-Nb proved to be much more stable than carbon.
Subjects: |
2300 Fuel and energy technology > 2303 Other sources of energy (solar, wind, etc.) 3400 Physical chemistry > 3401 Electrochemistry |
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Department: | Department of Chemical Engineering |
Research Center: | Other |
Funders: | Estancias postdoctorales en el extranjero - Postdoctoral Grant |
PolyPublie URL: | https://publications.polymtl.ca/3640/ |
Journal Title: | Journal of Materials (vol. 2013) |
Publisher: | Hindawi |
DOI: | 10.1155/2013/706513 |
Official URL: | https://doi.org/10.1155/2013/706513 |
Date Deposited: | 30 Apr 2019 12:18 |
Last Modified: | 27 Sep 2024 11:27 |
Cite in APA 7: | Valenzuela, E., Ramos-Sanchez, V., Lambert Arista, A. A., & Savadogo, O. (2013). Nanostructured TiO₂ doped with Nb as a novel support for PEMFC. Journal of Materials, 2013, 1-6. https://doi.org/10.1155/2013/706513 |
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