Edgar Valenzuela, Victor Ramos-Sanchez, Alejandro Adolfo Lambert Arista et Oumarou Savadogo
Article de revue (2013)
|
Libre accès au plein texte de ce document Version officielle de l'éditeur Conditions d'utilisation: Creative Commons: Attribution (CC BY) Télécharger (1MB) |
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.
Sujet(s): |
2300 Combustibles et technologie de l'énergie > 2303 Autres sources d'énergie (combustibles solaire, éolien, etc.) 3400 Chimie physique > 3401 Électrochimie |
---|---|
Département: | Département de génie chimique |
Centre de recherche: | Autre |
Organismes subventionnaires: | Estancias postdoctorales en el extranjero - Postdoctoral Grant |
URL de PolyPublie: | https://publications.polymtl.ca/3640/ |
Titre de la revue: | Journal of Materials (vol. 2013) |
Maison d'édition: | Hindawi |
DOI: | 10.1155/2013/706513 |
URL officielle: | https://doi.org/10.1155/2013/706513 |
Date du dépôt: | 30 avr. 2019 12:18 |
Dernière modification: | 27 sept. 2024 11:27 |
Citer en 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 |
---|---|
Statistiques
Total des téléchargements à partir de PolyPublie
Téléchargements par année
Provenance des téléchargements
Dimensions