期刊
CHINESE JOURNAL OF CATALYSIS
卷 38, 期 4, 页码 673-682出版社
SCIENCE PRESS
DOI: 10.1016/S1872-2067(17)62807-9
关键词
Non-precious metal catalyst; Oxygen reduction reaction; Proton exchange membrane fuel cell; Fe, N, S-doped porous carbon; Melamine formaldehyde resin
资金
- National Basic Research Program of China [2015CB932303]
- National Natural Science Foundation of China [21373175, 21621091]
Proton exchange membrane fuel cells suffer from the sluggish kinetics of the oxygen reduction reaction (ORR) and the high cost of Pt catalysts. In the present work, a high-performance ORR catalyst based on Fe, N, S-doped porous carbon (FeNS-PC) was synthesized using melamine formaldehyde resin as C and N precursors, Fe(SCN)(3) as Fe and S precursors, and CaCl2 as a template via a two-step heat treatment without a harsh template removal step. The results show that the catalyst treated at 900 degrees C (FeNS-PC-900) had a high surface area of 775 m(2)/g, a high mass activity of 10.2 A/g in an acidic medium, and excellent durability; the half-wave potential decreased by only 20 mV after 10000 potential cycles. The FeNS-PC-900 catalyst was used as the cathode in a proton exchange membrane fuel cell and delivered a peak power density of 0.49 W/cm(2). FeNS-PC-900 therefore has good potential for use in practical applications. (C) 2017, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
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