期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 37, 期 1, 页码 873-876出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2011.04.032
关键词
Pt-Au; Carbon aerogel; Microwave-assisted polyol process; Electrocatalyst; Direct methanol fuel cell
资金
- National Science Foundation of China [20876013, 20636060]
- International S&T Cooperation Program of China [2009DFA63120]
Pt-Au nanoparticles supported on carbon aerogel, namely 2:1 has been synthesized by the microwave-assisted polyol process. The structure of Pt-Au nanoparticles is characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). The electrochemical property of Pt-Au catalysts for methanol oxidation is evaluated by cyclic voltammetry (CV). The results show that Au-modified Pt catalysts exhibit a high methanol tolerance and improved electrochemical catalytic activity, suggesting that carbon aerogel supported Pt-Au catalysts are better catalysts for the electrochemical oxidation of methanol than conventional Pt catalysts. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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