The improved electrocatalytic activity of palladium/graphene nanosheets towards ethanol oxidation by tin oxide

被引：79
作者：
Wen, Zhuliang [2 ]
Yang, Sudong [1 ]
Liang, Yanyu [1 ]
He, Wei [1 ]
Tong, Hao [1 ]
Hao, Liang [1 ]
Zhang, Xiaogang [1 ]
Song, Qijun [2 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Coll Mat Sci & Engn, Nanjing 210016, Peoples R China
[2] Jiangnan Univ, Sch Chem & Mat Engn, Wuxi 214122, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2010年 / 56卷 / 01期
基金：
中国国家自然科学基金;
关键词：
SnO2-GNS; Catalyst support; Microwave-assisted reduction; Electrocatalytic performances; Ethanol oxidation; WALLED CARBON NANOTUBES; EXFOLIATED GRAPHITE OXIDE; METHANOL FUEL-CELLS; ALCOHOL OXIDATION; ROOM-TEMPERATURE; ALKALINE MEDIA; CO TOLERANCE; FORMIC-ACID; GRAPHENE; PD;
D O I：
10.1016/j.electacta.2010.09.032
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
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.
引用
收藏
页码：139 / 144
页数：6
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