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CoSi2合金的制备及其电化学性能研究
  • ISSN号：0465-7942
  • 期刊名称：《南开大学学报：自然科学版》
  • 时间：0
  • 分类：O646[理学—物理化学;理学—化学]
  • 作者机构：[1]南开大学新能源材料化学研究所,天津300071, [2]天津市能源材料化学重点实验室,天津300071, [3]南开大学教育部高效储能工程研究中心,天津300071
  • 相关基金：国家自然科学基金（50631020,50701025）;国家863项目（2007AA05Z149,2007AA05Z108,2006AA05Z110）;天津市基础研究计划（07JCYBJC03500,07JCEDJC02700）.
作者： 刘光[1], 张彦辉[1], 王一菁[1,2,3], 焦丽芳[1,2,3], 袁华堂[1,2,3]
关键词： COSI2, 合金, 电弧熔炼法, RIETVELD精修, 电化学性能, CoSi2 alloy, are melting method, Rietveld refinement, electrochemical properties
中文摘要：

采用电弧熔炼法成功制备了CoSi2合金，利用Rietveld结构精修法研究了该合金的晶体结构。精修结果表明CoSi2晶体属于立方晶系，空间群Fm-3m，晶胞参数a-0.5367nm。电化学容量和循环寿命测试发现CoSi2合金经过活化后其电化学容量最大达到176.4mAh／g，循环稳定性较好.对CoSi2合金电极的电化学反应机理进行了探讨。

英文摘要：

CoSi2 alloy was successful synthesized by arc melting method, and the crystal structure of CoSi2 alloy were studied by Rietveld refinement. CoSi2 crystals with a cubic struc- ture in space group Fm-3m, cell parameters a=0.5367nm. Electrochemical discharge capacity and cycle life were tested, it showed that the maximum discharge capacity of CoSi2 alloy after activation was 176.4 mAh/g, and it had good cycle stability. Electrochemical reaction mechanism of CoSi2 alloy electrode were discussed through cyclic voltammetry test.

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期刊信息
  • 《南开大学学报：自然科学版》
  • 中国科技核心期刊
  • 主管单位:教育部
  • 主办单位:南开大学
  • 主编：田建国
  • 地址：天津南开区卫津路94号
  • 邮编：300071
  • 邮箱：
  • 电话：022-23501681
  • 国际标准刊号：ISSN：0465-7942
  • 国内统一刊号：ISSN：12-1105/N
  • 邮发代号:6-174
  • 获奖情况:
  • 中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘（网络版）,德国数学文摘,英国动物学记录,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:4822