期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 36, 期 16, 页码 9581-9590出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2011.05.062
关键词
Platinum-nickel nanoparticles; Electrocatalyst; Electrooxidation; Formic acid; Carbon-ceramic
资金
- council of Azarbaijan University of Tarbiat Moallem [401/475]
The Pt-Ni nanoparticles supported on carbon-ceramic electrode (CCE) are prepared by an electrodeposited process. The obtained catalyst is characterized by scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction and cyclic voltammetry. The results show that the Pt-Ni nanoparticles (Flower like), which are uniformly dispersed on carbon ceramic, are 20-50 nm in diameters. The Pt-Ni/CCE catalyst, which has excellent electrocatalytic activity for formic acid (FA) electrooxidation than a comparative Pt/CCE catalyst, shows great potential as less expensive electrocatalyst for FA electrooxidation. On the other hand, the Pt-Ni/CCE catalyst has satisfactory stability and reproducibility when stored in ambient conditions or continues cycling. These results indicate that the system studied in the present work is the most promising system for use in direct formic acid fuel cells. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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