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成分配比對Ti/IrO2-Ta2O5電極電容性能影響
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福州大學材料科學與工程學院,廈門理工學院材料科學與工程學院,福州大學材料科學與工程學院,福州大學材料科學與工程學院,福州大學材料科學與工程學院,福州大學材料科學與工程學院

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國家自然科學基金(11374053) ;福建省自然科學(2015J01190)


Influence of composition on the structure and capacitive performance of Ti/IrO2-Ta2O5 electrodes
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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

Fund Project:

Educational Commission of Heilongjiang Province of China (12521z008); Innovation Talents of Science and Technology of Special Fund Project (2012RFQXG085); Natural Science Foundation of Heilongjiang Province of China (B201007); National Undergraduates Innovating Experimentation Project

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    摘要:

    摘要：采用低溫熱分解法制備了Ti基IrO2-Ta2O5氧化物涂層電極。通過X射線衍射(XRD)，循環(huán)伏安曲線，交流阻抗譜，恒流充放電等測試方法分析了Ta含量對IrO2-Ta2O5氧化物涂層組織結構及電容性能的影響。結果表明，Ta2O5可抑制IrO2的晶化程度。隨涂層中Ta含量增加，晶化度降低。當Ta含量為60mol%時，IrO2-Ta2O5電極的結晶度為6.4%，具有較小的電荷轉移電阻和最高的比電容（239.2F/g），比IrO2電極比電容(54.1F/g)提高了近4倍。

    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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賀沖,朱君秋,邵艷群,伊昭宇,陳志杰,唐電.成分配比對Ti/IrO2-Ta2O5電極電容性能影響[J].稀有金屬材料與工程,2017,46(9):2589~2593.[HE Chong, ZHU Jun-qiu, SHAO Yan-qun, YI Zhao-yu, CHEN Zhi-jie, 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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  • 收稿日期:2015-06-04
  • 最后修改日期:2015-10-11
  • 錄用日期:2015-11-18
  • 在線發(fā)布日期: 2017-11-29
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