Thermal Decomposition Synthesis of Graphene Nanosheets Anchored on Mn3O4 Nanoparticles as Anodes in Lithium Ion Batteries

5th Annual International Conference on Material Science and Environmental Engineering

材料科学;生态环境科学

Tang, Xihao^1 ; Ma, Xiao^1 ; Qiu, Danfeng^1 ; Bu, Gang^1 ; Xia, Yongjun^1 ; Zhao, Bin^2 ; Lin, Zixia^2 ; Shi, Yi^2

Key Laboratory of Radar Imaging and Microwave Photonics, Univ. Aeronau T. Astronaut, Ministry of Education, College of Electronic and Information Engineeri Ng, Nanj Ing University of Aeronautics and Astronautics, Nanjing

210016, China^1

National Laboratory of Microstructures, School of Electronic Science and Engineering, Nanjing University, Nanjing, China^2

关键词: 3-D nanostructures;    Charge-discharge cycle;    Graphene layers;    Graphene nanosheets;    High reversible capacities;    In-situ thermal decomposition;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/301/1/012108/pdf
DOI  :  10.1088/1757-899X/301/1/012108

来源: IOP

【 摘 要 】

Graphene nanosheets (GNS) anchored on Mn3O4nanoparticles have been successfully synthesized through in situ thermal decomposition of Mn (NO3)2without the use of any templates or surfactants. Mn3O4particles were coordinately distributed on the GNS surface. This was achieved by forming 3D nanostructures to avoid detrimental graphene layer stacking, and was characterized using a scanning electron microscope. The Mn3O4/GNS nanocomposite delivers an initial capacity of 1450 mAh g-1at a current density of 100 mA g-1. It also maintains a high reversible capacity of 930 mAh g-1even after 60 charge-discharge cycles without showing any apparent decay.