Pt2SnCu nanoalloy with surface enrichment of Pt defects and SnO2 for highly efficient electrooxidation of ethanol

Meihua Huang; Wangliang Wu; Chuxin Wu; Lunhui Guan

doi:10.1039/C4TA06695B

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Pt₂SnCu nanoalloy with surface enrichment of Pt defects and SnO₂ for highly efficient electrooxidation of ethanol†

Meihua Huang,^ab Wangliang Wu,^ab Chuxin Wu^ab and Lunhui Guan*^ab

Author affiliations

* Corresponding authors

^a Key Laboratory of Design and Assembly of Functional Nanostructures, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China
E-mail: guanlh@fjirsm.ac.cn

^b Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, China

Abstract

We artfully synthesized Pt defects and SnO₂ on the surface of a carbon-supported Pt₂SnCu nanoalloy (Pt₂SnCu–O-A/C) by in situ surface oxidation and acid treatment. The Pt₂SnCu–O-A/C modified in this way exhibits excellent electrocatalytic activities for the ethanol oxidation reaction (EOR) in comparison to the commercial Pt/C and PtRu/C. The surface activity and mass activity are, respectively, 3.1 and 4.3 times greater than those of Pt/C. The enhanced activity for ethanol oxidation is attributed to the synergistic catalytic effect of Pt defects and SnO₂.

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Article information

DOI: https://doi.org/10.1039/C4TA06695B
Article type: Communication
Submitted: 06 Dec 2014
Accepted: 03 Jan 2015
First published: 06 Jan 2015

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J. Mater. Chem. A, 2015,3, 4777-4781

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Pt₂SnCu nanoalloy with surface enrichment of Pt defects and SnO₂ for highly efficient electrooxidation of ethanol

M. Huang, W. Wu, C. Wu and L. Guan, J. Mater. Chem. A, 2015, 3, 4777 DOI: 10.1039/C4TA06695B

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Journal of Materials Chemistry A