Journal of Inorganic Materials ›› 2018, Vol. 33 ›› Issue (9): 1022-1028.doi: 10.15541/jim20180143

• Orginal Article • Previous Articles     Next Articles

Facile Synthesis of Reduced Graphene Oxide In-situ Wrapped MnTiO3 Nanoparticles for Excellent Lithium Storage

Huan-Long LIU1,2, Wei ZHAO2, Rui-Zhe LI2, Xie-Yi HUANG2, Yu-Feng TANG2, Dong-Mei LI1(), Fu-Qiang HUANG2,3()   

  1. 1. School of Material Science and Engineering, Shanghai University, Shanghai 200444, China
    2. State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
    3. Beijing National Laboratory for Molecular Sciences and State Key Laboratory of Rare Earth Materials Chemistry and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
  • Received:2018-04-03 Revised:2018-05-01 Online:2018-09-20 Published:2018-08-14
  • About author:LIU Huan-Long (1990-), male, candidate of Master degree. E-mail: huanlongliu@outlook.com
  • Supported by:
    National Key Research and Development Program (2016YFB0901600);Science and Technology Commission of Shanghai (16ZR1440500, 16JC1401700);National Science Foundation of China (51672301);Key Research Program of Chinese Academy of Sciences (QYZDJ-SSW-JSC013, KGZD-EW-T06);Youth Innovation Promotion Association CAS

Abstract:

The stable high-capacity anode has been an urgent demand for high energy density lithium-ion batteries (LIBs). Herein, a simple and effective strategy to synthesize high-performance reduced graphene oxide (rGO) in-situ wrapped MnTiO3 nanoparticles (MnTiO3@rGO) by Sol-Gel method is designed. The MnTiO3 nanoparticles are uniformly dispersed and wrapped by few-layer graphene. Due to high conductivity of rGO, MnTiO3@rGO nanoparticles show excellent rate performance, with a specific capacity of 286 mAh·g-1 being displayed at the higher rate of 5.0 A·g-1. Moreover, benefited from porous structure and flexible rGO shell, the MnTiO3@rGO anode delivers a remarkable long-term cycling stability. The specific capacity maintains 441 mAh·g-1 after 500 cycles at 0.5 A·g-1, only losing 8.4%. Therefore, the results demonstrate that the facile synthetic strategy is highly desirable for improving the conductivity and stability of metal oxide anodes.

Key words: in-situ wrapped, reduced oxide graphene, MnTiO3 nanoparticles, lithium-ion batteries anode

CLC Number: 

  • TQ174