Paper Title:

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

Periodical Key Engineering Materials (Volume 497)
Main Theme Silicon Science and Advanced Micro-Device Engineering II
Edited by Osamu Hanaizumi, Masafumi Unno and Kenta Miura
Pages 67-72
DOI 10.4028/www.scientific.net/KEM.497.67
Citation Nobuyoshi Nakagawa et al., 2011, Key Engineering Materials, 497, 67
Online since December, 2011
Authors Nobuyoshi Nakagawa, Takashi Watanabe, Masatsugu Wagatsuma, Takuya Tsujiguchi
Keywords Carbon Supported Catalyst (PtRuRh/C), Direct Ethanol Fuel Cells, Ethanol Oxidation, Nanoparticle
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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.