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Methanol-tolerant carbon aerogel-supported Pt–Au catalysts for direct methanol fuel cell

Author:
Hong Zhu   Zhijun Guo   Xinwei Zhang   Kefei Han   Yubao Guo   Fanghui Wang   Zhongming Wang   Yongsheng Wei  


Journal:
International Journal of Hydrogen Energy


Issue Date:
2012


Abstract(summary):

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. [All rights reserved Elsevier].


Page:
873-876


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