Synthesis and characterization of large scale potassium titanate nanowires with good Li-intercalation performance

被引：42

作者：

Wang, BL

Chen, Q ^{[1
]}

Hu, J

Li, H

Hu, YF

Peng, LM

机构：

[1] Peking Univ, Dept Elect, Key Lab Phys & Chem Nanodevices, Beijing 100871, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Div Nanoscale Phys & Devices, Lab Solid State Ion, Beijing 100080, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2005年 / 406卷 / 1-3期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.cplett.2005.02.097

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：

K2Ti8O17 nanowires have been synthesized in large scale using one-step hydrothermal reaction between pure Ti and KOH solution. When using Ti-plate, centimeter sized porous block was produced. This block has layered structure composed of nanowires. The nanowires were characterized using powder X-ray diffraction, energy dispersive X-ray spectroscopy, transmission electron microscopy, high-resolution electron microscopy and image simulations. LTV-absorption study showed that these nanowires are wide-band semiconductors with a band gap E-g similar to 3.34 eV. The nanowires exhibited reversible electrochemical Li-intercalation/ extraction behaviors, making a good candidate as anode materials for future high-performance lithium ion batteries. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：95 / 100

页数：6

共 15 条

[1] TiO2-B nanowires [J].