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Title of Journal: J Mater Sci Mater Electron

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Abbravation: Journal of Materials Science: Materials in Electronics

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Springer US

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DOI

10.1002/asna.18891211406

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1573-482X

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Facile synthesis of high performance nonnoblemet

Authors: Qingchao Qiu Weihua Yang Yangfan Zhan Hao Wang
Publish Date: 2016/08/27
Volume: 28, Issue: 1, Pages: 949-957
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Abstract

The development of nonnoble metal catalysts is of great interest due to their significant potential application in both fuel cell system and metalair batteries particularly when considering long term commercial deployment Fe/N/C is a promising nonPt electrocatalyst for the oxygen reduction reaction ORR but its catalytic activity is considerably inferior to that of Pt in acidic medium In this paper an improved Fe/N/S/C catalyst denoted as Fe–N–S/C is presented Nitrogensulfurirondoped porous carbon material is synthesized by the pyrolysis of dicyandiamide a kind of abundant and inexpensive compound with thiourea as additional sulfur source in argon atmosphere The Fe–N–S/C shows excellent performance for the ORR with the onset and halfwave potential at 089 and 078 V vsRHE in 01 M H2SO4 solution respectively which are significantly higher compared to those of the catalysts derived from only dicyandiamide 085 and 075 V Our results indicate that as compared to the commercial 20  Pt/C catalyst the synthesized catalyst exhibits not only higher current density and longterm durability but also higher tolerance to methanol poisoning More importantly the synthetic method is simple and inexpensive

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