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研究论文

纳米TiO_2的电化学嵌锂研究

  • 兰英 ,
  • 刘建文 ,
  • 高学平 ,
  • 周杏第 ,
  • 曲金秋 ,
  • 吴锋 ,
  • 宋德瑛
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  • 南开大学新能源材料化学研究所,南开大学新能源材料化学研究所,南开大学新能源材料化学研究所,南开大学新能源材料化学研究所,南开大学新能源材料化学研究所,南开大学新能源材料化学研究所,南开大学新能源材料化学研究所 天津300071 ,天津300071 ,天津300071 ,天津300071 ,天津300071 ,天津300071 ,天津300071

收稿日期: 2004-05-28

  修回日期: 2004-05-28

  网络出版日期: 2004-05-28

Electrochemical Lithium Insertion of Nanosized TiO_2

  • LAN Ying ,
  • LIU Jian-wen ,
  • GAO Xue-ping~ ,
  • ZHOU Xing-di ,
  • QU Jin-qiu ,
  • WU Feng ,
  • SONG De-ying
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  • (Institute of New Energy Material Chemistry, Nankai University, Tianjin 300071,China

Received date: 2004-05-28

  Revised date: 2004-05-28

  Online published: 2004-05-28

摘要

应用苛性钠水热法制备粒度均匀、分散性好、质子钛酸盐纳米管(直径约10~15nm).经加热烧结脱水后,该纳米管逐渐转变成具有锐钛矿相结构的纳米柱(直径约15~20nm).初步研究表明,这种具有锐钛矿相结构的纳米柱,其电化学可逆嵌/脱锂容量较高,但循环稳定性还有待改进提高.

本文引用格式

兰英 , 刘建文 , 高学平 , 周杏第 , 曲金秋 , 吴锋 , 宋德瑛 . 纳米TiO_2的电化学嵌锂研究[J]. 电化学, 2004 , 10(2) : 133 -136 . DOI: 10.61558/2993-074X.1557

Abstract

The protonic titanate nanotubes with the diameter of 10~15 nm were synthesized via hydrothermal method in NaOH solution and the calcined nanotubes at 500 ℃ were transferred to anatase nanorods with the diameter of 12~20 nm due to dehydration.The electrochemical behavior of the anatase nanorods as lithium insertion materials was examined. The results showed that the nanorod electrode had the high initial discharge capacity of 232 mAh/g and second reversible capacity of 198 mAh/g. The capacity of nanorod electrode maintained 152mAh/g after 20 cycles.

参考文献

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