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| Research on Electrocatalytic Activity of Carbon Nanotube–Supported Pt–bimetallic Nanoparticles for Methanol and Ethanol Oxidations |
| DONG Hongzhou1, DONG Lifeng1,2 |
1.College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042
2.Department of Physics, Astronomy, and Materials Science, Missouri State University, Springfield, Missouri 65897, United States of America |
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Cite this article:
DONG Hongzhou DONG Lifeng. Research on Electrocatalytic Activity of Carbon Nanotube–Supported Pt–bimetallic Nanoparticles for Methanol and Ethanol Oxidations. Chin J Mater Res, 2011, 25(6): 579-584.
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Abstract Pt, Pt–Fe, Pt–Co, and Pt–Ni nanoparticles were synthesized on single–walled carbon nanotubes (SWCNT), and their effects on electrocatalytic activity for methanol and ethanol oxidations were investigated using cyclic voltammetry and electrochemical impedance spectroscopy. Followed by the order of Pt–Fe/SWCNT, Pt–Co/SWCNT and Pt–Ni/SWCNT, the catalysts demonstrate better electrocatalytic activities for both methanol and ethanol oxidations, but less tolerance to CO poisoning. In comparison to Pt/SWCNT, Pt–Ni/SWCNT exhibits better catalytic characteristics for methanol oxidation, and Pt–Ni/SWCNT could be a desirable catalyst candidate for direct methanol fuel cells. However, for ethanol oxidation, Pt/SWCNT has better catalytic characteristics than Pt–Ni/SWCNT.
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Received: 15 April 2011
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| Fund: Supported by the Taishan Scholar Overseas Distinguished Professorship Program from the Shandong Province Government, Shandong Natural Science Foundation for Distinguished Young Scholars No.JQ201118, National Natural Science Foundation No.51172113, the American Chemical Society Petroleum Research Fund
No.47532–GB10, and the Cottrell College Science Award from Research Corporation for Science Advancement. |
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