| 杂质离子对非晶态水合氧化钌电化学超电容性能的影响 |
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| 引用本文： | 武彩霞,刘罡,方海涛,李峰,史鹏飞. 杂质离子对非晶态水合氧化钌电化学超电容性能的影响[J]. 材料研究学报, 2009, 0(6) |
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| 作者姓名： | 武彩霞 刘罡 方海涛 李峰 史鹏飞 |
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| 作者单位： | 哈尔滨工业大学化工学院;哈尔滨工业大学材料科学与工程学院;中国科学院金属研究所沈阳材料科学国家(联合)实验室; |
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| 基金项目： | 国家自然科学基金50872026和50602011资助项目~~ |
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| 摘 要： | 采用化学沉淀法(在RuCl_3溶液中滴加NaOH)制备非晶态水合氧化钌,用去离子水对非晶态水合氧化钌沉淀充分洗涤,获得了Na、Cl杂质含量不同、而非晶态结构、水含量和显微相貌都相同的两种氧化钌样品.X射线光电子能谱分析表明,样品中的Na和Cl杂质分别以水合Na~+、水合Cl~-的形式存在.去离子水充分洗涤5次的样品(W-5)与不充分洗涤1次的样品(W-1)相比,前者的Na~+、Cl~-杂质含量低.循环伏安测试表明,W-5的比电容和功率性能都优于W-1 Na~+、Cl~-杂质不仅降低了氧化钉的比电容,也降低了氧化钌的功率性能.在非晶态水合氧化钌的制备过程中杂质含量的控制对获得高超电容性能十分重要.文中还分析了Na~+、Cl~-杂质对电容性能不利影响的机理.
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| 关 键 词： | 无机非金属材料 材料物理与化学 超级电容器 X射线光电子能谱 氧化钌 |
Effect of impurity ions on electrochemical super-capacitive properties of amorphous hydrated ruthenium oxide |
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| WU Caixia LIU Gang FANG Haitao LI Feng SHI Pengfei .School of Chemical Engineering , Technology,Harbin Institute of Technology,Harbin .School of Materials Science , Engineering,Harbin .Shenyang National Laboratory for Materials Science. Effect of impurity ions on electrochemical super-capacitive properties of amorphous hydrated ruthenium oxide[J]. Chinese Journal of Materials Research, 2009, 0(6) |
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| Authors: | WU Caixia LIU Gang FANG Haitao LI Feng SHI Pengfei .School of Chemical Engineering Technology Harbin Institute of Technology Harbin .School of Materials Science Engineering Harbin .Shenyang National Laboratory for Materials Science |
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| Affiliation: | WU Caixia~1 LIU Gang~2 FANG Haitao~(2**) LI Feng~3 SHI Pengfei~1 1.School of Chemical Engineering , Technology,Harbin Institute of Technology,Harbin 150001 2.School of Materials Science , Engineering,Harbin 150001 3.Shenyang National Laboratory for Materials Science,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016 |
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| Abstract: | Amorphous hydrous ruthenium oxide was prepared by a chemical precipitation method. Two ruthenium oxide samples with different contents of Na and CI impurities were obtained by changing the number of times for washing sediments with distilled water.The experiment results showed that the Na and CI impurities exist as hydrated Na~+ and hydrated CI~-,respectively.Sample W.5(sufficiently washed 5 times with distilled water during its preparation) has lower content of Na~+ and Cl~+ impurities in comparison with s... |
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| Keywords: | inorganic non-metallic materials material physics and chemistry supercapacitor X-ray photoeiectron spectra ruthenium oxide |
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