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Functionalized Carbon Nanotube Matrix for Inducing Noncovalent Interactions Toward Enhanced Catalytic Performance of Metallic Electrode

Published online by Cambridge University Press:  29 May 2013

Le Q. Hoa ,
Hiroyuki Yoshikawa ,
Masato Saito  and
Eiichi Tamiya
Le Q. Hoa
Affiliation:
JST-CREST, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan Department of Applied Physics, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
Hiroyuki Yoshikawa
Affiliation:
JST-CREST, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan Department of Applied Physics, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
Masato Saito
Affiliation:
JST-CREST, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
Eiichi Tamiya
Affiliation:
JST-CREST, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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Abstract

Herein, we investigated the noncovalent interactions derived from functionalized carbon nanotube matrices grafting metallic alloy PtRu nanoparticle-decorated Vulcan carbon (fMWCNTs-g-PtRu/C) toward the enhancement of alcohol oxidation reactions. The fMWCNTs noncovalently grafted PtRu/C was successfully synthesized and demonstrated significant enhancement of the electro-catalytic activity and stability toward alcohol oxidation reactions as revealed by electrochemical characterizations. The presented results indicate that the grafting matrix specifically enhances ethanol oxidation reaction kinetics much more than methanol and propanol oxidation reactions. Since the same loading of PtRu/C was used for all tests, the differentiation between these reactants revealed the different strength of noncovalent interactions between the functional matrix and corresponding reactants. This result reveals a new strategy for using fMWCNTs matrix as potential catalyst supports due to its facile fabrication and functionalization, cost effectiveness and environmental friendliness, factors in which all of them are necessary for the practical application of direct alcohol fuel cells in near future.

Keywords

chemical reactioncompositeenergy generation
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1549: Symposium ZZ – Carbon Functional Nanomaterials, Graphene and Related 2D-Layered Systems , 2013 , pp. 135 - 140
Copyright
Copyright © Materials Research Society 2013 

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References

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