摘要
Fe-N-C材料是目前非常有潜力的一类非贵金属氧还原电极催化剂。本论文分别以导电碳黑(HG-1F)、苯胺、Fe Cl3为碳载体、含氮前驱体、铁前驱体,依次经过聚合、热处理和酸处理获得了多孔Fe-N-C材料。电化学测试结果表明,多孔Fe-N-C材料在0.1 M KOH中催化氧还原反应(ORR)的活性随酸处理时间呈火山型变化,其中酸处理4 h的样品对ORR具有较高的催化活性,促使ORR主要以4电子反应途径进行。
The Fe-N-C materials are currently one kind of potential non-precious metal oxygen reduction electrocatalyst. In this paper, the porous Fe-N-C materials were synthesized by polymerization, heat-treatment and acid-leaching with conductive carbon black（HG-1F）, aniline and ferric chloride as carbon support, nitrogen-containing precursor and metal source, respectively. The electrochemical measurement indicated that the catalytic activity of the Fe-N-C materials for oxygen reduction reaction（ORR） in 0.1 M KOH showed a volcanic curve with the acid-leaching time. The as-prepared Fe-N-C material by acid-leaching for 4 h displayed a higher activity, facilitating the ORR in a 4-electron pathway.
作者
严祥辉
蒙紫薇
刘佳
张云杰
YAN Xianghui MENG Ziwei LIU Jia ZHANG Yunjie(School of Materials Science and Engineering,Beifang University of Nationalities, Y inc huan Ningxia 750021, China)
出处
《石油化工应用》
CAS
2016年第10期122-125,134,共5页
Petrochemical Industry Application
基金
国家民委科研项目
项目编号:14BFZ014
省部共建粉体材料及特种陶瓷重点实验室项目
项目编号:1408
北方民族大学校级创新项目
项目编号:2016-XJ-CL-045
关键词
Fe-N-C材料
非贵金属催化剂
苯胺
酸处理
氧还原反应
Fe-N-C materials
non-precious metal catalyst
aniline
acid-leaching
oxygen reduction reaction
