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The Effect of the Nano and Microstructure of PtRu/C Electrocatalysts Towards Methanol and Carbon Monoxide Oxidation

Published online by Cambridge University Press:  11 February 2011

Wataru Sugimoto ,
Tomoyuki Kawaguchi ,
Yasushi Murakami  and
Yoshio Takasu
Wataru Sugimoto
Affiliation:
Department of Fine Materials Engineering, Faculty of Textile Science and Technology, Shinshu University, 3–15–1 Tokida, Ueda 386–8567, JAPAN
Tomoyuki Kawaguchi
Affiliation:
Department of Fine Materials Engineering, Faculty of Textile Science and Technology, Shinshu University, 3–15–1 Tokida, Ueda 386–8567, JAPAN
Yasushi Murakami
Affiliation:
Department of Fine Materials Engineering, Faculty of Textile Science and Technology, Shinshu University, 3–15–1 Tokida, Ueda 386–8567, JAPAN
Yoshio Takasu
Affiliation:
Department of Fine Materials Engineering, Faculty of Textile Science and Technology, Shinshu University, 3–15–1 Tokida, Ueda 386–8567, JAPAN
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Abstract

Nanoparticul ate Pt50Ru50 supported on a carbon black (CB) were prepared by an impregnation method and the effect of the nano and microstructure towards the electrocatalytic oxidation of methanol and carbon monoxide were evaluated. The in-house prepared PtRu nanoparticles were well-alloyed and finely dispersed on CB, as revealed by XRD and FESEM. FESTEM-EDX analysis of isolated PtRu single nanoparticles indicated that although the majority of the binary particles had a metal composition in accordance to the nominal ratio, some compositional deviation was observed. The activity towards electrocatalytic oxidation of methanol and preadsorbed carbon monoxide is discussed based on the nano and microstructure.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 756: Symposia EE/FF – Solid-State Ionics – Materials for Fuel Cells and Fuel Processors , 2002 , FF6.4
Copyright
Copyright © Materials Research Society 2003

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References

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