Preparation method and application for metal sulfide hollow microspheres with enriched sulfur vacancies

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United States of America Patent

PATENT NO 11967716
APP PUB NO 20220246934A1
SERIAL NO

17584732

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Abstract

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Disclosed is a hollow sulfide microsphere with enriched sulfur vacancies, which is prepared by a method comprising the steps of: dissolving cobalt nitrate and nickel nitrate in a mixed solution of N, N-dimethylformamide and acetone with an equal volume; then adding a chelating agent thereto, subjecting a resulting mixture to a solvothermal reaction to obtain a coordination polymer microsphere; dissolving the coordination polymer microsphere and a sulfurization agent in an organic solvent, and reacting to obtain a hollow sulfide microsphere; and subjecting the hollow sulfide microsphere to reduction treatment with sodium borohydride, centrifuging, washing and drying to obtain the hollow sulfide microsphere with enriched sulfur vacancies having a particle size of 1-2.5 μm, a shell thickness of 15-30 nm and a specific capacity of the material of 763.4 C g−1 (current density is 1 A g−1).

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Patent OwnerAddress
BEIJING INSTITUTE OF TECHNOLOGY100081 NO 5 SOUTH MAIN STREET HAIDIAN DISTRICT BEIJING ZHONGGUANCUN BEIJING CITY BEIJING CITY 100081

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gong, Baixue Beijing, CN 1 0
Huang, Zhen Beijing, CN 196 743
Jia, Shuai Beijing, CN 6 0
Shao, Ziqiang Beijing, CN 1 0
Wei, Jie Beijing, CN 100 1686

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