Hongbo Geng,ab Huixiang Ang,b Xianguang Ding,c Huiteng Tan,b Guile Guo,b Genlong Qu,a Yonggang Yang,a Junwei Zheng,d Qingyu Yan*b and Hongwei Gu*a （顾宏伟）
a Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science and Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University
b School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
c i-Lab and Division of Nanobiomedicine, Suzhou Institute of Nano-tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, China
d College of Physics, Optoelectronics and Energy, Soochow University, Suzhou, China
Nanoscale, 2016,8, 2967-2973
In this work, a one-dimensional Co3O4@TiO2 core–shell electrode material with superior electrochemical performance is fabricated by a convenient and controllable route. The approach involves two main steps: the homogeneous deposition of polydopamine and TiO2 layers in sequence on the cobalt coordination polymer and the thermal decomposition of the polymer matrix. The as-prepared electrode material can achieve excellent electrochemical properties and stability as an anode material for lithium ion batteries, such as a high specific capacity of 1279 mA h g−1, good cycling stability (around 803 mA h g−1 at a current density of 200 mA g−1 after 100 cycles), and stable rate performance (around 520 mA h g−1 at a current density of 1000 mA g−1). This dramatic electrochemical performance is mainly attributed to the excellent structural characteristics, which could improve the electrical conductivity and lithium ion mobility, as well as electrolyte permeability and architectural stability during cycling.
链接：//pubs.rsc.org/en/Content/ArticleLanding/2016/NR/C5NR08570E#!divAbstract
