Pt–RuO$_{\protect \mathrm{u}}$–SnO$_{\protect \mathrm{v}}$/CMK-3 composite electrocatalysts for the methanol oxidation reaction

Saravanan, Lakshmanan; Tseng, Chuan-Ming; Chang, Chia-Chia; Chung, Yi-Chen; Chung, Yi-Chen; Lin, Chiu-Yue; Lo, An-Ya

doi:10.5802/crchim.14

Comptes Rendus. Chimie (Sep 2020)

Pt–RuO$_{\protect \mathrm{u}}$–SnO$_{\protect \mathrm{v}}$/CMK-3 composite electrocatalysts for the methanol oxidation reaction

Saravanan, Lakshmanan,
Tseng, Chuan-Ming,
Chang, Chia-Chia,
Chung, Yi-Chen,
Chung, Yi-Chen,
Lin, Chiu-Yue,
Lo, An-Ya

Affiliations

Saravanan, Lakshmanan: ORCiD; Department of Chemical and Materials Engineering, National Chin-Yi University of Technology, Taichung, Taiwan
Tseng, Chuan-Ming: Department of Materials Engineering, Ming Chi University of Technology, New Taipei City, Taiwan
Chang, Chia-Chia: Department of Chemical and Materials Engineering, National Chin-Yi University of Technology, Taichung, Taiwan
Chung, Yi-Chen: Department of Chemical and Materials Engineering, National Chin-Yi University of Technology, Taichung, Taiwan
Chung, Yi-Chen: Green Energy Development Center, Feng Chia University, Taichung, Taiwan; Department of Environment Engineering and Science, Feng Chia University, Taichung, Taiwan
Lin, Chiu-Yue: Green Energy Development Center, Feng Chia University, Taichung, Taiwan; Department of Environment Engineering and Science, Feng Chia University, Taichung, Taiwan
Lo, An-Ya: ORCiD; Department of Chemical and Materials Engineering, National Chin-Yi University of Technology, Taichung, Taiwan

DOI: https://doi.org/10.5802/crchim.14
Journal volume & issue: Vol. 23, no. 4-5
pp. 343 – 356

Abstract

Read online

A composite of highly dispersed Pt–RuO$_{\mathrm{u}}$–SnO$_{\mathrm{v}}$ nanoparticles (NPs) on a mesoporous carbon CMK-3 framework was synthesized. The resulting composites of Pt, RuO$_{\mathrm{u}}$, SnO$_{\mathrm{v}}$, and CMK-3 were designated PwRxSy/C3, and their microstructures and compositions were systematically characterized using a variety of techniques. The Pt-based NPs have average particle sizes of 2–8 nm and were well dispersed in the pore channels of the CMK-3 host. The methanol oxidation reaction (MOR) activity of the catalysts was investigated as a function of the Sn mass fraction. The electrochemical activity for the MOR improved with increasing Sn content in the Pt–Ru–Sn/CMK-3 composite. In short, MOR activity, CO tolerance, long-term stability, cyclic durability, and cost performance of our proposed composition were significantly improved, which renders efficient routes to developing catalysts for direct methanol fuel cells.

Published in Comptes Rendus. Chimie

ISSN: 1878-1543 (Online)
Publisher: Académie des sciences
Country of publisher: France
LCC subjects: Science: Chemistry: Organic chemistry: Biochemistry; Science: Chemistry: Physical and theoretical chemistry; Science: Mathematics
Website: https://comptes-rendus.academie-sciences.fr/chimie

About the journal

Abstract

Keywords