Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 45, Issue 19, Pages 11321-11329Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2020.02.067
Keywords
Nitrogen doped; Porous graphite; Sulfur; Iron; Oxygen reduction reaction
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Funding
- Six Talent Peaks Project in Jiangsu Province [2015-XNY-010]
- Science and Technology Planning Social Development Project of Zhenjiang City [GY2018002]
- National Natural Science Foundations of China [21676129, 21777063]
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Nitrogen doped lotus-stem carbon and that being promoted by sulfur or iron (N-LC, NS-LC, NFe-LG and NSFe-LG) are synthesized. The interrelations between pore size, graphitization degree, N content, Fe-N content, S doping, and their effects on oxygen reduction reaction (ORR) activity and stability in alkaline media are studied. The NSFe-LG shows the most excellent performances for ORR. The Fe-free NS-LC shows close ORR activity and comparable stability to the NSFe-LG, which may make metal-free catalyst attractive. (C) 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
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