期刊
JOURNAL OF POWER SOURCES
卷 195, 期 6, 页码 1605-1609出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2009.08.106
关键词
Pt-CeO2/carbon nanotubes; Anodic aluminum oxide; Methanol electro-oxidation
资金
- National Natural Science Foundation of China [50667001]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
Pt-CeO2/carbon nanotubes(Pt-CeO2/CNTs), based on glucose polymerization in the inner pores of anodic aluminum oxide templates under hydrothermal conditions followed by carbonization at high temperature. were synthesized using as precursors H2PtCl6 reduced by NaBH4 and CeCl3 deposited by NaOH Pt nanoparticles and CeO2 units were inserted onto the outer surfaces and inner surfaces of the as-prepared carbon nanotubes (CNTs). The resulting Structures were characterized by scanning electron microscopy (SEM). The electrocatalytic performances of the Pt-CeO2/CNTs modified glass carbon electrodes were investigated for methanol oxidation by cyclic voltammetric and chronoamperometric measurements It was found that compared with Pt/CNTs, the hybrid Pt-CeO2/CNTs electrodes showed superior catalytic performance when the molar ratio of Pt to CeO2 in the catalyst was about 2 1 The increased catalytic efficiency of Pt is likely to result from its combination with CeO2 (C) 2009 Elsevier B V All rights reserved
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