Formation of Mn-Cr mixed oxide nanosheets with enhanced lithium storage properties

Novel carbon-free Mn 2 O 3 /MnCr 2 O 4 hybrid nanosheets are synthesized through thermal decomposition of the facilely co-precipitated Mn-Cr binary hydroxide and a carbonate hybrid precursor. As an anode for lithium-ion batteries, the Mn 2 O 3 /MnCr 2 O 4 electrode delivers a wonderful electrochemic...

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Bibliographic Details
Published in:RSC advances 2018-01, Vol.8 (52), p.2967-29677
Main Authors: Li, Liewu, Wang, Liping, Zhang, Mingyu, Huang, Qizhong
Format: Article
Language:English
Subjects:
Chemistry
Electrochemical analysis
Electrodes
Lithium
Lithium-ion batteries
Manganese oxides
Mixed oxides
Nanosheets
Rechargeable batteries
Thermal decomposition
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Summary:Novel carbon-free Mn 2 O 3 /MnCr 2 O 4 hybrid nanosheets are synthesized through thermal decomposition of the facilely co-precipitated Mn-Cr binary hydroxide and a carbonate hybrid precursor. As an anode for lithium-ion batteries, the Mn 2 O 3 /MnCr 2 O 4 electrode delivers a wonderful electrochemical performance, i.e. , an enhanced stability of 913 mA h g −1 at a current density of 1 A g −1 after 300 cycles, and an excellent rate performance. The excellent electrochemical performance of the Mn 2 O 3 /MnCr 2 O 4 electrode can be ascribed to the interconnected nanosheets and porous structure, as well as the possible synergistic effects between Mn and Cr mixed oxides. Novel carbon-free Mn 2 O 3 /MnCr 2 O 4 hybrid nanosheets are synthesized. As an anode for lithium-ion batteries, they deliver a wonderful electrochemical performance.
ISSN:2046-2069
2046-2069
DOI:10.1039/c8ra04868a