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Issue 32, 2011
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An alternative cobalt oxide-supported platinum catalyst for efficient hydrolysis of sodium borohydride

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Abstract

This study presents an alternative cobalt (II, III) oxide-supported platinum (Pt/Co3O4) catalyst for hydrogen generation in a sodium borohydride (NaBH4) system for the first time. The Pt/Co3O4 exhibits approximately a 410% increase in the hydrogen generation rate compared with pristine Co3O4, indicating that the Pt/Co3O4 is an efficient catalyst to generate hydrogen for NaBH4 hydrolysis. Both the Co K-edge and the Pt LIII-edge results delivered from X-ray absorption near edge structure (XANES) analysis reveal that stable features, including the local structure and the electronic state, are observed after a fifth cycle, suggesting that the Pt/Co3O4 has a potential application in NaBH4 hydrolysis. The catalytic mechanism of the Pt/Co3O4 for NaBH4 hydrolysis is proposed based on the XANES results, which involves catalysis of the NaBH4 and simultaneous reduction of Pt and Co ions during hydrolysis.

Graphical abstract: An alternative cobalt oxide-supported platinum catalyst for efficient hydrolysis of sodium borohydride

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Article information


Submitted
20 Apr 2011
Accepted
19 May 2011
First published
30 Jun 2011

J. Mater. Chem., 2011,21, 11754-11759
Article type
Paper

An alternative cobalt oxide-supported platinum catalyst for efficient hydrolysis of sodium borohydride

T. Hung, H. Kuo, C. Tsai, H. M. Chen, R. Liu, B. Weng and J. Lee, J. Mater. Chem., 2011, 21, 11754
DOI: 10.1039/C1JM11720C

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