应用化学2011，Vol.28Issue(12)：1408-1414,7.DOI:10.3724/SP.J.1095.2011.00758
电化学还原制备铂-氢钨青铜阳极
Preparation of Platinum-hydrogen Tungsten Bronze Anodes by Electrochemical Reduction
摘要
Abstract
Anodes of proton exchange membrane fuel cell with the platinum-hydrogen tungsten bronze (H^Woj) as the composite catalysts were prepared by electrochemical reduction on carbon cloth. The catalysts were characterized by XRD, SEM, EIS and single-cell polarization tests. The results showed that the order of electrochemical reduction had a major impact on the morphology and dispersion of the catalysts. The composite catalyst of H^Woj/Pt exhibited synergistic catalytic effect and increased the catalytic activity for hydrogen"oxidation. The H^Woj/Pt catalyst showed the highest catalytic activity for hydrogen oxidation, while the Pt-HIWO3 catalyst showed the lowest catalytic activity. Because of the coexistence of two electrolytes, less hydrogen tungsten bronze catalyst was deposited on the electrode and platinum agglomerated obviously on the Pt-HIWO3 electrodes, leading to a decrease of the catalytic activity.关键词
电化学还原法/氢钨青铜/阳极/质子交换膜燃料电池Key words
electrochemical reduction/ hydrogen tungsten bronze/ anode/ proton exchange membrane fuel cell分类
化学化工引用本文复制引用
杨勇,赵文文,施庆乐,张华..电化学还原制备铂-氢钨青铜阳极[J].应用化学,2011,28(12):1408-1414,7.基金项目
江苏高校优势学科建设工程资助项目 （）
