Amorphous CoSn alloys decorated by Pt as high efficiency electrocatalysts for ethanol oxidation

作者：Wang Hui; Zhang Xiangtai; Wang Rongfang^*; Ji Shan; Wang Wei; Wang Qizhao; Lei Zigiang

来源：Journal of Power Sources, 2011, 196(19): 8000-8003.

DOI：10.1016/j.jpowsour.2011.05.062

• Electrocatalysts
• Amorphous alloy
• Ethanol oxidation
• Low platinum

This study examines the electro-catalytic behaviour of Pt decorating amorphous alloys in the electro-oxidation of ethanol. Pt decorated CoSn nanoparticles on carbon (denoted as Pt-CoSn/C) are prepared using a two-stage chemical synthesis (sol-gel preparation and Steady-state replacement method). The structure of Pt-CoSn/C nanoparticles is confirmed by the transmission electron microscopy (TEM) and X-ray diffraction (XRD). Under the same quantity of platinum, the Pt-CoSn/C nanoparticles have higher activity in alcohol oxidation than the Pt/C, PtRu/C and PtSn/C nanoparticles in cyclic voltammetry tests. The structure of Pt decorating amorphous CoSn alloys notably decreases the usage of Pt and enhances its catalytic activity at the same time.

• 出版日期2011-10-1
• 单位西北师范大学