无机材料学报

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岩盐型 LiTiO2的合成和表征

裴先茹, 张顺利, 张经纬, 杨建军, 金振声   

  1. 河南大学特种功能材料重点实验室, 开封 475001
  • 收稿日期:2002-01-10 修回日期:2006-04-07 出版日期:2007-01-20 网络出版日期:2007-01-20

Preparation and Characterization of Rock Salt-type LiTiO2

PEI Xian-Ru, ZHANG Shun-Li, ZHANG Jing-Wei, YANG Jian-Jun, JIN Zhen-Sheng   

  1. Laboratory of Special Functional Materials, Henan University, Kaifeng 475001, China
  • Received:2002-01-10 Revised:2006-04-07 Published:2007-01-20 Online:2007-01-20

摘要: 在常压、110℃用浓LiOH水溶液和粉末TiO2(锐钛矿)反应的方法, 合成了岩盐型LiTiO2, 并采用TEM、XRD、XPS、TG/DTG等手段对岩盐型LiTiO2进行了表征. 结果表明, 采用该方法制得的岩盐型LiTiO2为纳米颗粒状的非化学计量物质, 在≤500℃其晶型是稳定的, 在室温下它有较强的吸水性.

关键词: 岩盐型LiTiO2, XPS, LiOH, Li+离子电池

Abstract: Rock salt-type LiTiO2 was prepared by treating TiO2(anatase) powder with concentrated aqueous solution of LiOH at 110℃ under atmospheric pressure and characterized by means of TEM, XRD, XPS and TG/DTG. The results show that rock salttype LiTiO2 prepared by this method is a nanosized nonstoichiometric compound. Its crystal form is stable at annealing temperature ≤500℃. In air ambience, the rock salt-type LiTiO2 possesses stronger water absorption.

Key words: rock salt-type LiTiO2, XPS, LiOH, Li+ ion battery

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