文献类型：期刊文献

英文题名：B-Doped Fe/N/C Porous Catalyst for High-Performance Oxygen Reduction in Anion-Exchange Membrane Fuel Cells

作者：Zhao, Ye-Min[1];Liao, Li-Mei[1];Yu, Guo-Qiang[1];Wei, Ping-Jie[1];Liu, Jin-Gang[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Key Lab Adv Mat, Shanghai 200237, Peoples R China

年份：2019

卷号：6

期号：6

起止页码：1754

外文期刊名：CHEMELECTROCHEM

收录：;EI(收录号：20190606475857);WOS:【SCI-EXPANDED(收录号:WOS:000463752300018)】；

基金：This study was financially supported by the NSF of China (no.21571062, 21271072 to JGL; 21503080 to PJW), the Program for Professor of Special Appointment (Eastern Scholar) at the Shanghai Institutions of Higher Learning to JGL, and the Fundamental Research Funds for the Central Universities (no.222201717003).

语种：英文

外文关键词：anion exchange membrane fuel cell; boron doping; nitrogen; oxygen reduction reaction; synergistic effect

摘要：The development of high-performance non-precious metal catalysts for the oxygen reduction reaction (ORR) as an alternative to platinum-based counterparts in fuel cells is highly desirable but challenging. In this study, a facile approach for preparing a porous boron-bearing Fe/N/C catalyst by pyrolysis was reported. The obtained FeCNB-900 with a high surface area (784m(2)g(-1)) favored a 4e(-)-reduction pathway for ORR, with a half-wave potential of approximate to 0.86V vs. RHE and high stability in 0.1M KOH. Furthermore, anion-exchange membrane fuel cells (AEMFCs) with the use of the FeCNB-900 composite as the cathode catalyst exhibited a maximal power density of 0.172Wcm(-2) without back pressure, revealing its promising potential for application in fuel cells and metal-air batteries. Results demonstrated that the additional doping of B into Fe/N/C leads to a significant increase in the specific surface area of the catalyst composite and can adjust surface polarities as well as electronic properties and provide more active sites to impart a synergistic effect for boosting catalytic ORR performance.