文献类型：期刊文献

英文题名：S-Doping of an Fe/N/C ORR Catalyst for Polymer Electrolyte Membrane Fuel Cells with High Power Density

作者：Wang, Yu-Cheng[1];Lai, Yu-Jiao[1];Song, Lin[1];Zhou, Zhi-You[1];Liu, Jian-Guo[1,2,3];Wang, Qiang[1];Yang, Xiao-Dong[1];Chen, Chi[1,4];Shi, Wei[1];Zheng, Yan-Ping[1];Rauf, Muhammad[1];Sun, Shi-Gang[1]

机构：[1]Xiamen Univ, Coll Chem & Chem Engn, Collaborat Innovat Ctr Chem Energy Mat, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China;[2]Nanjing Univ, Ecomat & Renewable Energy Res Ctr, Dept Mat Sci & Engn, Nanjing 210093, Jiangsu, Peoples R China;[3]Nanjing Univ, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China;[4]E China Univ Sci & Technol, Coll Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2015

卷号：54

期号：34

起止页码：9907

外文期刊名：ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

收录：;EI(收录号：20152801019122);WOS:【SCI-EXPANDED(收录号:WOS:000360215100026)】；

基金：This study was supported by grants from Major State Basic Research Development Program of China (2015CB932300), NSFC (21373175, 21321062 and 21361140374), Program for New Century Excellent Talents in University (NECT-11-0301). ORR=oxygen reduction reaction.

语种：英文

外文关键词：electrocatalysis; fuel cells; iron; oxygen reduction reaction; sulfur

摘要：Fe/N/C is a promising non-Pt electrocatalyst for the oxygen reduction reaction (ORR), but its catalytic activity is considerably inferior to that of Pt in acidic medium, the environment of polymer electrolyte membrane fuel cells (PEMFCs). An improved Fe/N/C catalyst (denoted as Fe/N/C-SCN) derived from Fe(SCN)(3), poly-m-phenylenediamine, and carbon black is presented. The advantage of using Fe(SCN)(3) as iron source is that the obtained catalyst has a high level of S doping and high surface area, and thus exhibits excellent ORR activity (23 Ag-1 at 0.80 V) in 0.1M H2SO4 solution. When the Fe/N/C-SCN was applied in a PEMFC as cathode catalyst, the maximal power density could exceed 1 W cm(-2).