Anatase Nanotubes as an Electrode Material for Lithium-Ion Batteries

被引：66

作者：

Zakharova, G. S. ^{[2
]}

Jaehne, C. ^{[1
]}

Popa, A. ^{[3
]}

Taeschner, Ch. ^{[3
]}

Gemming, Th. ^{[3
]}

Leonhardt, A. ^{[3
]}

Buechner, B. ^{[3
]}

Klingeler, R. ^{[1
]}

机构：

[1] Heidelberg Univ, Kirchhoff Inst Phys, INF 227, D-69120 Heidelberg, Germany

[2] Russian Acad Sci, Ural Div, Inst Solid State Chem, Ekaterinburg 620990, Russia

[3] Leibniz Inst Festkorper & Werkstoffforsch IFW Dre, D-01069 Dresden, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2012年 / 116卷 / 15期

关键词：

TIO2; ANATASE; ELECTROCHEMICAL PROPERTIES; TITANIA NANOTUBES; METAL-OXIDES; STORAGE; TITANATES; NANOSTRUCTURES; NANOPARTICLES; TEMPERATURE; PERFORMANCE;

D O I：

10.1021/jp300955r

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：

Anatase TiO2 nanotubes were synthesized via the hydrothermal method followed by annealing at 500 degrees C in argon for 1 h. The phase structure, morphology, and composition were investigated in detail by means of X-ray diffraction, scanning and high-resolution transmission electron microscopy, infrared spectroscopy, and thermal analysis. The material consists of nanotubes with diameter of 10-15 nm and lengths of several hundred nanometers. The electrochemical properties were investigated by cyclic voltammetry and galvanostatic cycling. The data imply a first cycle irreversible capacity of 385 mAh/g, and capacities of 307 and 265 mAh/g after the second and 50th cycle, respectively, at C/10. The Coulombic efficiency of about 99% after cycle 50 implies excellent cycling stability. Hence anatase TiO2 nanotubes evidence great potential for usage in high-power lithium-ion batteries.

引用

页码：8714 / 8720

页数：7

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