1School of Material Science and Engineering, Shandong Polytechnic University, Jinan 250353, Shandong Province, China
2School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, Shandong Province, China
Adv. Mater. Lett., 2011, 2 (6), pp 392-396
DOI: 10.5185/amlett.2011.2225
Publication Date (Web): Apr 07, 2012
Copyright © IAAM-VBRI Press
E-mail: hjg@spu.edu.cn; yaojsh@spu.edu.cn
Nanoporous platinum was fabricated by a simple dealloying method. Electron microscope characterizations show that selectively etching Al from PtAl alloy precursors in alkali or acid solution can both easily prepare three-dimensional bicontinuous network nanostructures of Pt. The resulted nanostructure exhibited much enhanced catalytic performance towards methanol electrooxidation compared with commercial Pt/C catalyst. More importantly, CO stripping and potentiostatic tests demonstrated that nanoporous Pt has much higher long-term catalytic stability and CO resistance than the Pt/C catalyst.
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