| 成分配比对Ti/IrO2-Ta2O5电极电容性能影响 |
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| 引用本文： | 贺冲,朱君秋,邵艳群,伊昭宇,陈志杰,唐电.成分配比对Ti/IrO2-Ta2O5电极电容性能影响[J].稀有金属材料与工程,2017,46(9):2589-2593. |
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| 作者姓名： | 贺冲 朱君秋 邵艳群 伊昭宇 陈志杰 唐电 |
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| 作者单位： | 福州大学材料科学与工程学院,厦门理工学院材料科学与工程学院,福州大学材料科学与工程学院,福州大学材料科学与工程学院,福州大学材料科学与工程学院,福州大学材料科学与工程学院 |
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| 基金项目： | 国家自然科学基金(11374053) ;福建省自然科学(2015J01190) |
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| 摘 要： | 摘要：采用低温热分解法制备了Ti基IrO2-Ta2O5氧化物涂层电极。通过X射线衍射(XRD)，循环伏安曲线，交流阻抗谱，恒流充放电等测试方法分析了Ta含量对IrO2-Ta2O5氧化物涂层组织结构及电容性能的影响。结果表明，Ta2O5可抑制IrO2的晶化程度。随涂层中Ta含量增加，晶化度降低。当Ta含量为60mol%时，IrO2-Ta2O5电极的结晶度为6.4%，具有较小的电荷转移电阻和最高的比电容（239.2F/g），比IrO2电极比电容(54.1F/g)提高了近4倍。
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| 关 键 词： | 二氧化铱 五氧化二钽 超级电容器 交流阻抗谱 |
| 收稿时间： | 2015/6/4 0:00:00 |
| 修稿时间： | 2015/10/11 0:00:00 |
Influence of composition on the structure and capacitive performance of Ti/IrO2-Ta2O5 electrodes |
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| HE Chong,ZHU Jun-qiu,SHAO Yan-qun,YI Zhao-yu,CHEN Zhi-jie and TANG Dian.Influence of composition on the structure and capacitive performance of Ti/IrO2-Ta2O5 electrodes[J].Rare Metal Materials and Engineering,2017,46(9):2589-2593. |
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| Authors: | HE Chong ZHU Jun-qiu SHAO Yan-qun YI Zhao-yu CHEN Zhi-jie and TANG Dian |
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| Affiliation: | College of Materials Science and Engineering,Fuzhou University,Fuzhou,College of Materials Science and Engineering,Xiamen University of Technology,Xiamen,College of Materials Science and Engineering,Fuzhou University,Fuzhou,College of Materials Science and Engineering,Fuzhou University,Fuzhou,,College of Materials Science and Engineering,Fuzhou University,Fuzhou |
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| Abstract: | Abstract: Ti/IrO2-Ta2O5 electrodes were prepared by low thermal decomposition method. The influence of Ta contents on the microstructure and capacitive performance of the Ti/IrO2-Ta2O5 electrodes was investigated by XRD, cyclic voltammetry,electrochemical impedance spectroscopy and galvanostatic charge-discharge tests. The results showed that Ta2O5 can inhibit crystallization of the IrO2.With increasing Ta contents, the crystallization degree decreased.When the content of Ta increased to 60%mol, the electrode with a content of 6.4% crystalline structure had a superior capacitive performanceof 239.2 g/F,which was considerably higher than that of IrO2 electrode(54.1 g/F) . |
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| Keywords: | IrO2 Ta2O5 supercapacitors AC impedance spectroscopy |
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