Porous anatase TiO2 constructed from a metal-organic framework for advanced lithium-ion battery anodes

被引：155
|
作者：
Wang, Ziqi [1 ]
Li, Xiang [1 ]
Xu, Hui [1 ]
Yang, Yu [1 ]
Cui, Yuanjing [1 ]
Pan, Hongge [1 ]
Wang, Zhiyu [1 ]
Chen, Banglin [1 ,2 ]
Qian, Guodong [1 ]
机构：
[1] Zhejiang Univ, Dept Mat Sci & Engn, Cyrus Tang Ctr Sensor Mat & Applicat, State Key Lab Silicon Mat, Hangzhou 310027, Peoples R China
[2] Univ Texas San Antonio, Dept Chem, San Antonio, TX 78249 USA
来源：
JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 31期
基金：
中国国家自然科学基金;
关键词：
CARBON; PERFORMANCE; NANOPARTICLES; SULFUR; PORES; MICROSPHERES; ARCHITECTURE; RECOGNITION; PLATFORMS; TEMPLATE;
D O I：
10.1039/c4ta02029d
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Porous anatase TiO2 has been prepared, for the first time, through the calcination of a metal-organic framework (MOF) precursor under an air atmosphere at 380 degrees C. The resulting TiO2 has shown moderate porosity with a BET surface area of 220 m(2) g(-1) attributed to the highly porous structure of the MIL-125(Ti) precursor. The porous anatase TiO2 was examined as a lithium-ion battery anode, exhibiting high capacity retention and good rate capability. The porous structure of anatase TiO2 enforces Li+ diffusion and helps to buffer the volumetric variation. It has shown reversible capacities of 166, 106 and 71 mA h g(-1) at 1 C, 5 C and 10 C charge/discharge rates, respectively, after 500 cycles.
引用
收藏
页码：12571 / 12575
页数：5
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