Thiocyanate Ion Ligand-Induced Atomically Dispersed Fe–N–S Tridoped Hollow Catalyst for High-Performance Zinc–Air Rechargeable Batteries

ZIF-8-derived Fe–N–S triple doping hollow-shell nanoparticles are prepared by the surface modification of SCN– ligands. Fe3+ ions are highly adsorbed on the SCN–-modified layer, forming a hollow-shell rhombic dodecahedron particle after pyrolysis. Doping extra S atom is found to be an effective meth...

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Bibliographic Details
Published in:Energy & fuels 2020-09, Vol.34 (9), p.11620-11627
Main Authors: Yang, Cheng, Shu, Chengyong, Gan, Zhuofan, Lai, Chen, Ma, Jijun, Tang, Wei, Wu, Yuping
Format: Article
Language:English
Subjects:
Batteries and Energy Storage
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Summary:ZIF-8-derived Fe–N–S triple doping hollow-shell nanoparticles are prepared by the surface modification of SCN– ligands. Fe3+ ions are highly adsorbed on the SCN–-modified layer, forming a hollow-shell rhombic dodecahedron particle after pyrolysis. Doping extra S atom is found to be an effective method to increase the density of atomically dispersed active sites and boost their catalytic performance. The H-ZIF-Fe-SCN catalyst shows good bifunctional stability toward the oxygen reduction reaction and the oxygen evolution reaction in alkaline solution, the half-wave potential for the H-ZIF-Fe-SCN catalyst was recorded to be 0.889 V vs reverse hydrogen electrode, and a maximum power performance of 158.8 mW cm–2 was achieved when it was used as a cathode catalyst in zinc–air batteries.
ISSN:0887-0624
1520-5029
DOI:10.1021/acs.energyfuels.0c02512