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

被引：156

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

页码：12571 / 12575

页数：5

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