Graphene oxide wrapped porous NiO/CNT microspheres with excellent lithium storage performance

Three-dimensional porous NiO/CNT microspheres are constructed by the facile spray-drying method and subsequent annealing treatment under N2 atmosphere, which are subsequently wrapped by graphene oxide (GO) to form the porous NiO/CNT/GO microspheres. Benefiting from abundant pores distributed between...

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Bibliographic Details
Published in:Applied physics letters 2024-02, Vol.124 (7)
Main Authors: Zhu, Guozhen, Huang, Yujing, Zhang, Yiyao, Liu, Zhaochuan, Yang, Zhen, Che, Renchao
Format: Article
Language:English
Subjects:
Anodes
Chemical synthesis
Electrode materials
Graphene
Lithium-ion batteries
Microspheres
Nickel oxides
Rechargeable batteries
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Summary:Three-dimensional porous NiO/CNT microspheres are constructed by the facile spray-drying method and subsequent annealing treatment under N2 atmosphere, which are subsequently wrapped by graphene oxide (GO) to form the porous NiO/CNT/GO microspheres. Benefiting from abundant pores distributed between NiO nanoparticles and CNT, porous NiO/CNT/GO microspheres exhibit a good cycling stability (333.6 mA h g−1 after 1000 cycles at 2000 mA g−1). Thanks to CNTs distributed inside the microspheres and GO that provides support for microspheres, porous NiO/CNT/GO microspheres show a high rate performance (445.1 mA h g−1 at 5000 mA g−1). This work provides an approach for the synthesis of high-performance lithium-ion battery anode materials, and the synthesis of porous NiO/CNT/GO microspheres plays a very important role in promoting applied physics, which has brought vitality to physics.
ISSN:0003-6951
1077-3118
DOI:10.1063/5.0186640