Nanoparticle Decorated Ultrathin Porous Nanosheets as Hierarchical Co3O4 Nanostructures for Lithium Ion Battery Anode Materials

Jawayria Mujtaba; Hongyu Sun; Guoyong Huang; Kristian Mølhave; Yanguo Liu; Yanyan Zhao; Xun Wang; Shengming Xu; Jing Zhu

doi:10.1038/srep20592

Nanoparticle Decorated Ultrathin Porous Nanosheets as Hierarchical Co3O4 Nanostructures for Lithium Ion Battery Anode Materials

Sci Rep. 2016 Feb 5:6:20592. doi: 10.1038/srep20592.

Authors

Jawayria Mujtaba¹, Hongyu Sun^{1

2}, Guoyong Huang^{3

4}, Kristian Mølhave², Yanguo Liu⁵, Yanyan Zhao¹, Xun Wang⁶, Shengming Xu³, Jing Zhu¹

Affiliations

¹ Beijing National Center for Electron Microscopy, School of Materials Science and Engineering, The State Key Laboratory of New Ceramics and Fine Processing, Key Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing 100084, China.
² Department of Micro- and Nanotechnology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark.
³ Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China.
⁴ School of Metallurgy and Environment, Central South University, Changsha 410083, China.
⁵ School of Resources and Materials, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China.
⁶ Department of Chemistry, Tsinghua University, Beijing 100084, China.

Abstract

We report a facile synthesis of a novel cobalt oxide (Co3O4) hierarchical nanostructure, in which crystalline core-amorphous shell Co3O4 nanoparticles with a bimodal size distribution are uniformly dispersed on ultrathin Co3O4 nanosheets. When tested as anode materials for lithium ion batteries, the as-prepared Co3O4 hierarchical electrodes delivered high lithium storage properties comparing to the other Co3O4 nanostructures, including a high reversible capacity of 1053.1 mAhg(-1) after 50 cycles at a current density of 0.2 C (1 C = 890 mAg(-1)), good cycling stability and rate capability.

Publication types

Research Support, Non-U.S. Gov't