Pt羰基簇合物途径制备的Pt/C催化剂对甲醇的电催化氧化  

Electrocatalytic Oxidation of Methanol on Pt/C Catalyst Prepared via Pt Carbonyl Route

作　　者：黄俊杰[1] 杨辉[1] 唐亚文[1] 周益明[1] 陆天虹[1] 

机构地区：[1]南京师范大学化学与环境科学学院

出　　处：《南京师大学报（自然科学版）》2003年第3期40-43,46,共5页Journal of Nanjing Normal University(Natural Science Edition)

基　　金：国家科技部"973"(G2000026408);"863"(2001AA323060);国家自然科学基金(20003005);江苏省自然科学基金(BQ2000009)资助项目.

摘　　要：　通过Pt羰基簇合物在N2气氛下于150℃热分解制得了无定形的碳载纳米Pt催化剂.发现甲醇在这种催化剂上氧化的起始电位和峰电位均比在传统的液相还原法制得的Pt/C催化剂上发生了负移,峰电流也有明显的增加,且稳定性好.表明通过Pt羰基簇合物热分解制备Pt/C催化剂是一种较好的制备甲醇氧化电催化剂的方法.The Pt/C catalyst with amorphous and nanosized Pt was prepared through the heat decomposition of Pt carbonyl under N2 at 150℃. It was found that the onset potential and peak potential for the methanol oxidation on such catalyst are negatively shifted and that the peak current of the methanol oxidation is significantly increased as compared to the Pt/C catalyst prepared with the traditional liquid phase reaction method. Its stability of the electrocatalytic performance is also improved. It demonstrated that the preparation procedure via the carbonyl route is a good method for preparing the electrocatalyst for the methanol oxidation.

关 键 词：铂羰基簇合物 直接甲醇燃料电池 PT/C催化剂 甲醇 电催化氧化 纳米粒子 电催化活性 

分 类 号：TM911.4[电气工程—电力电子与电力传动] O643.36[理学—物理化学]