燃料化学学报Issue(3)：352-359,8.
钴－聚吡咯－碳载 Pt 催化剂的制备及其单电池性能研究
Study on preparation of cobalt-polypyrrole-carbon black supported Pt catalyst and its single cell performance
摘要
Abstract
Cobalt-polypyrrole-carbon black supported Pt catalyst ( Pt/Co-PPy-C) was prepared by pulse-microwave assistedc hemical reduction and used as a cathode catalyst fo r oxygen reduc tionr eaction (ORR) in a single cell; the influence of operation temperature and H2 /air stoichiometric ratio on the cell performances was investigated, in comparison with the commercial Pt/C catalyst.The results indicated that the cell performs best at 70 ℃ and with a H2 /Air ratio of 1.2 ∶2.5.During the 150 h durability test at a galvanostatic operation condition of 600 mA/cm2 , the voltage degradation rate with Pt /Co-PPy-C as the cathode catalyst is 0.119 mV/h, about 26% of that with the commercial Pt/C catalyst.The cathode charge transfer impedances before and after durability test are about 7.176 and 8.767 mohm, respectively, much smaller than those with the Pt/C catalys t. Th e aver age particle sizeo f Pt in Pt/Co-PPy-C is increased from 2.46 to 3.18 nm, also smaller than that for the Pt /C catalyst.The Pt/Co-PPy-C catalyst exhibits superior performance in ORR and may have an enormous application potential in fuel cell.关键词
聚吡咯/燃料电池/阴极催化剂/单电池/耐久性/氧还原反应Key words
polypyrrole/fuel cell/cathode catalyst/single cell/durability/oxygen reduction reaction分类
化学化工引用本文复制引用
张路,林瑞,黄真,范仁杰..钴－聚吡咯－碳载 Pt 催化剂的制备及其单电池性能研究[J].燃料化学学报,2015,(3):352-359,8.基金项目
国家自然科学基金（21276199）；中央高校基本科研业务费专项资金及同济大学青年英才计划攀登高层次人才项目。 （）
