Journal
APPLIED SCIENCES-BASEL
Volume 8, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/app8010022
Keywords
MgCo2O4 porous nanosheets; microwave assistant liquid phase method; lithium-ion batteries; electrochemical performances
Categories
Funding
- Henan International Cooperation Project in Science and Technology [134300510051, 152102410035]
- Plan for Scientific Innovation Talent of the Henan Province [144200510009, 144100510015]
- Program for Changjiang Scholars and Innovative Research Team in University [IRT1234]
- Program for Science and Technology Innovation Talents in Universities of Henan Province [17HASTIT026]
- Program for Science and Technology Innovation Team of Henan University of Science and Technology [2015XTD006]
- Scientific Research Starting Foundation for Ph.D. of Henan University of Science and Technology [13480065]
- Science Foundation for Youths of Henan University of Science and Technology [2013QN006]
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Lithium-ion batteries (LIBs) have drawn considerable attention due to their high energy density and good cycling stability. As a transition-metal oxide, MgCo2O4 (MCO) is a promising candidate for energy storage applications because of its low-cost and environmental characteristics. Here, MCO porous nanosheets have been successfully synthesized by a microwave-assisted liquid phase method followed by an annealing procedure. As a result, MCO annealed at 600 degrees C exhibited optimal rate and cycling performances for Lithium storage application. Specifically, when tested as anode materials for Lithium ion batteries, MCO porous nanosheets delivered a high specific capacity of 1173.8 mAh g(-1) at 200 mA g(-1), and the specific capacity reached 1130.1 mAh g(-1) after 100 cycles at 200 mA g(-1), achieving 96.3% for the retention rate. The excellent electrochemical performances are mainly attributed to the monolayer porous nanosheet, which provides short transport paths for Li ions and electrons. Results demonstrated that the MCO porous nanosheets are promising electrode materials for Lithium ion batteries applications.
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