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应用科学学报 ›› 2001, Vol. 19 ›› Issue (2): 185-188.

• 研究简报 • 上一篇    

含钙、含钡和含镍钡镁锰矿的合成及在水溶液中电化学性能

刘斌, 夏熙   

  1. 新疆大学应用化学研究所, 新疆乌鲁木齐 830046
  • 收稿日期:2000-01-30 修回日期:2000-08-29 出版日期:2001-06-30 发布日期:2001-06-30
  • 作者简介:刘斌(1970-),男,新疆乌鲁木齐人,讲师,硕士.

Doped Ca-、Doped Ba-、Doped Ni- Todorokites and Their Electrochemical Behavior in Aqueous Electrolytes

LIU Bin, XIA Xi   

  1. Institute of Applied Chemistry, Xinjiang University, Wulumoqi 830046, China
  • Received:2000-01-30 Revised:2000-08-29 Online:2001-06-30 Published:2001-06-30

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95

被引次数

19

摘要： 在改进的碱性条件下合成晶型良好的纳米W-MnO2,选择与Mg2+半径大小或电子层结构相似的Ca2+、Ba2+、Ni2+为嵌入离子合成出新型钡镁锰矿.XRD表明其结构为Todorokite,但含有未完全转化的W-MnO2.并在碱性和中性电液中对样品进行恒流放电,循环伏安等电化学性质研究.

关键词: 含钙钡镁锰矿, 含镍钡镁锰矿, 恒流放电, 含钡钡镁锰矿, 循环伏安

Abstract: Some Todorokites containing Ca2+,Ba2+,Ni2+ were synthesized by having well defined crystals of nano phase W-MnO2 reacted with various salts in which the positive ion radius or the electron structure was similar to the Mg ion. XRD patterns showed that their crystal structure were Todorokite but contained some unreacting W-MnO2. The electrochemical behavior of those nano phase compounds were investigated by using cycling voltammetry and galvonostatic discharge tests in various electrolytes. The results indicated that the discharge capacities of Ca-T and Ba-T are far better than those of W-MnO2.

Key words: doped Ca-Todorokite, doped Ba-Todorokite,doped Ni-Todorokite, constant current discharge, cycling voltammetry

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