标题：Facile synthesis of mesoporous Mn3O4nanotubes and their excellent performance for lithium-ion batteries
作者：Bai, Zhongchao ;Fan, Na ;Ju, Zhicheng ;Guo, Chunli ;Qian, Yitai ;Tang, Bin ;Xiong, Shenglin
作者机构：[Bai, Zhongchao ;Guo, Chunli ;Tang, Bin ] Research Institute of Surface Engineering, Taiyuan University of Technology, Taiyuan 030024, China;[Qian, Yi 更多
来源：Journal of Materials Chemistry C
摘要：Because of the low cost and operating potential, Mn3O4is highly noticeable among transition metal oxides as an anode material for Li-ion batteries. Here, mesoporous Mn3O4nanotubes with a high surface area of 42.18 m2g-1and an average pore size of 3.72 nm were synthesized for the first time through the hydrogen reduction of β-MnO2nanotubes under a H2/Ar atmosphere at 280 °C for 3 h. Electrochemical results demonstrate that the reversible capacity of mesoporous Mn3O4nanotubes is 641 mA h g-1(much higher than the theoretical capacity of graphite, ∼372 mA h g-1) after 100 cycles at a high current density of 500 mA g-1. The superior electrochemical performance can be attributed to the unique 1D mesoporous nano-tubular structure, which offers fast and flexible transport pathways for electrolyte ions, and also provides sufficient free space to buffer the large volume change of anodes based on the conversion reaction during the repeated lithium-ion insertion/extraction. The improved electrochemical performance makes such a mesoporous Mn3O4tubular structure promising as an anode material for next-generation lithium-ion batteries. © 2013 The Royal Society of Chemistry.