| 镧掺杂五氧化二钽膜电极的电化学性能 |
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| 引用本文： | 赵彦宏,王文岩,贾庆月,高有,王晓晶,苏毅国. 镧掺杂五氧化二钽膜电极的电化学性能[J]. 内蒙古大学学报(自然科学版), 2010, 41(3) |
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| 作者姓名： | 赵彦宏 王文岩 贾庆月 高有 王晓晶 苏毅国 |
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| 作者单位： | 内蒙古大学化学化工学院,呼和浩特,010021 |
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| 摘 要： | 利用低温水热法合成了镧掺杂五氧化二钽粉体.对样品的相结构进行了X射线衍射(XRD)分析,结果表明,掺镧后的五氧化二钽有好的晶型,并且掺杂使其衍射峰发生低角度偏移.通过循环伏安法(CV)在0.1 mol*L-1 KCl (含有K3Fe(CN)6)水溶液中测试了镧掺杂五氧化二钽膜电极的电化学性能,CV结果表明K3Fe(CN)6)在膜电极上的电极反应是扩散控制的反应.此外,镧掺杂五氧化二钽膜电极仍然有好的导电性,并且展现了比不掺杂的五氧化二钽膜电极更稳定的电化学特性.
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| 关 键 词： | 五氧化二钽 膜 循环伏安 电极 |
Electrochemical Property of La Doped Ta2O5 Film Electrode |
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| ZHAO Yan-hong,WANG Wen-yan,JIA Qing-yue,GAO You,WANG Xiao-jing,SU Yi-guo. Electrochemical Property of La Doped Ta2O5 Film Electrode[J]. Acta Scientiarum Naturalium Universitatis Neimongol, 2010, 41(3) |
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| Authors: | ZHAO Yan-hong WANG Wen-yan JIA Qing-yue GAO You WANG Xiao-jing SU Yi-guo |
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| Abstract: | Lanthanum doped tantalum oxide (La-Ta2O5) particles were synthesized with a low temperature hydrothermal method.The phase structure of samples obtained was performed by X-ray diffraction (XRD).The result revealed that the lanthanum doping had good crystallinity and did a low degree shift.The electrochemical behavior of La-Ta2O5 film electrode in K3Fe(CN)6 of 0.1 mol*L-1 KCl aqueous solution was investigated by cyclic voltgrammetry (CV).The CV result indicated that the electrochemical reaction of K3Fe(CN)6 was diffusion-controlled on the La-Ta2O5 film electrode.In addition,the La-Ta2O5 film electrode had still good conduction,and exhibited more stable electrochemical property than that of undoped Ta2O5 one. |
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| Keywords: | tantalum oxide film cyclic voltgrammetry electrode |
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