Journal
ELECTROCHIMICA ACTA
Volume 56, Issue 1, Pages 139-144Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2010.09.032
Keywords
SnO2-GNS; Catalyst support; Microwave-assisted reduction; Electrocatalytic performances; Ethanol oxidation
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Funding
- National Basic Research Program of China (973 Program) [2007CB209700]
- National Natural Science Foundation of China [50701023]
- Graduated Student Innovation Foundation of Jiangsu Province [CX09B_075Z, CX09B_076Z]
- NUAA [NS2010165]
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Tin oxide (SnO2)/graphene nanosheets (GNS) composite was prepared by a simple chemical-solution method as the catalyst support for direct ethanol fuel cells. Then the SnO2-GNS composites supporting Pd (Pd/SnO2-GNS) catalysts were synthesized by a microwave-assisted reduction process. The Pd/SnO2-GNS catalysts were characterized by using X-ray diffraction, transmission electron microscopy and energy-dispersive spectroscopy techniques. The electrocatalytic performances of Pd/SnO2-GNS catalysts for ethanol oxidation were studied by cyclic voltammetric and chronoamperometric measurements. It was found that compared with Pd/GNS, the Pd/SnO2-GNS catalyst showed superior electrocatalytic activity for ethanol oxidation when the mass ratio of SnCl2 center dot 2H(2)O precursor salt to graphite oxide was about 1:2. (C) 2010 Elsevier Ltd. All rights reserved.
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