| Effects of Doped Elements on Electrochemical Performance of Ni（OH）2 Materials |
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| 引用本文： | LIU Yuan-gang TANG Zhi-yuan XU Qiang LEE Chang-sheng. Effects of Doped Elements on Electrochemical Performance of Ni（OH）2 Materials[J]. 高等学校化学研究, 2007, 23(4): 452-455. DOI: 10.1016/S1005-9040(07)60097-X |
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| 作者姓名： | LIU Yuan-gang TANG Zhi-yuan XU Qiang LEE Chang-sheng |
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| 作者单位： | School of |
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| 基金项目： | Supported by the National Natural Science Foundation of China（ No. 20273047）. |
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| 摘 要： | High energy ball milling(HEBM)method was applied to synthesize Ni(OH)2 with different doped elements substitution for Ni2 .The morphology,structure and electrochemical behavior of prepared powders were studied.The results reveal that all the synthesized Ni(OH)2 particles were in sub-micron sizes and greatly agglomerated.Co-,Mg-,Fe-or Mn-doped Ni(OH)2 was of β-phase with 0.400-0.500 nm crystal interlayer distance,while Al-and Zn-doped products displayed α-phase with larger crystal interlayer spaces.The electrochemical mechanisms of synthesized Ni(OH)2 electrodes were discussed by EIS spectra.The specific capacity of Co-doped Ni(OH)2 is 245 mA·h·g-1,i.e.,60 mA·h·g-1 higher than that of Al-doped electrode,which has the highest discharging platform of a mid-voltage of 1.30 V.
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| 关 键 词： | 氢氧化镍 高能球磨法 金属离子掺杂 电化学性能 放电容量 |
| 收稿时间： | 2006-08-03 |
Effects of Doped Elements on Electrochemical Performance of Ni (OH) 2 Materials |
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| LIU Yuan-gang,TANG Zhi-yuan,XU Qiang,LEE Chang-sheng. Effects of Doped Elements on Electrochemical Performance of Ni (OH) 2 Materials[J]. Chemical Research in Chinese University, 2007, 23(4): 452-455. DOI: 10.1016/S1005-9040(07)60097-X |
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| Authors: | LIU Yuan-gang TANG Zhi-yuan XU Qiang LEE Chang-sheng |
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| Affiliation: | School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China |
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| Abstract: | |
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| Keywords: | Nickel hydroxide High energy ball milling method Metallic ion adulteration Electrochemical discharging capacity |
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