PEMFC用Pt-Co/C催化剂的制备及性能  

Preparation and Performance of Pt-Co/C Catalyst for PEMFC

作　　者：张云河[1] 李新海[1] 吴显明[1] 许名飞[1] 邓凌峰[1] 

机构地区：[1]中南大学冶金科学与工程学院,湖南长沙410083

出　　处：《贵金属》2004年第1期19-23,共5页Precious Metals

摘　　要：用液相沉积-高温合金化法制备了铂基合金催化剂,EDS、XRD的研究结果表明催化剂具有面心立方的结构,粒度小、分散性好,同时元素Co的加入使催化剂的Pt-Pt间距缩小。该催化剂的质子交换膜燃料电池伏安曲线表明,Pt-Co/C催化剂的性能优越,具有比纯铂更强的电催化能力,文中讨论了Co对催化剂活性的强化作用。The Pt-Co/C catalysts were prepared by liquid deposition and high temperature alloying method. The EDS and XRD analyses indicated that Pt and Pt-Co have fcc structure, with small particle size and high dispersity. The Co addition shortened the length of Pt-Pt bond.The performances of the catalysts in PEMFC were tested. The results showed the Pt-Co/C catalysts have better performance than pure platinum supported on carbon. The high catalytic activity of the Co addition were discussed in this paper.

关 键 词：催化化学 电催化剂 质子交换膜燃料电池 Pt-Co合金 PEMFC 制备 性能 

分 类 号：TM911.4[电气工程—电力电子与电力传动] TQ426.6[化学工程]