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Carbon-Supported PtRuRh Nanoparticles as a Catalyst for Direct Ethanol Fuel Cells

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Abstract:

Carbon-supported PtRuRh nanoparticles, PtRuRh/C, were prepared by an impregnation method as a new anode catalyst with a high activity for ethanol oxidation in a direct ethanol fuel cell (DEFC). PtRuRh (2:1:1)/C, of which the metal loading and the metal particle diameter was 40 wt% and 6.7 nm, respectively, with the metal composition of 2:1:1 for Pt:Ru:Rh, showed a higher oxidation current at a certain electrode potential compared to that of PtRu (1:1)/C and Pt/C prepared in a similar manner. The DEFC with PtRuRh (2:1:1)/C as the anode catalyst generated about a 1.5 times and 3 times higher electric power compared to that of PtRu (1:1)/C and Pt/C, respectively, with 2M ethanol.

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Periodical:

Key Engineering Materials (Volume 497)

Pages:

67-72

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.497.67

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Online since:

December 2011

Authors:

Nobuyoshi Nakagawa, Takashi Watanabe, Masatsugu Wagatsuma, Takuya Tsujiguchi

Keywords:

Carbon Supported Catalyst (PtRuRh/C), Direct Ethanol Fuel Cell (DEFC), Ethanol Oxidation, Nanoparticle

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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