| Al掺杂Ni(OH)2的结构及电化学性能 |
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| 引用本文： | 周环波,于非,周震涛.Al掺杂Ni(OH)2的结构及电化学性能[J].化学研究与应用,2006,18(5):502-505. |
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| 作者姓名： | 周环波 于非 周震涛 |
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| 作者单位： | 1. 湖北孝感学院化学系,湖北,孝感,432100
2. 华南理工大学材料科学与工程学院,广东,广州,510640 |
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| 基金项目： | 湖北省教育厅自然科学基金 |
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| 摘 要： | 用化学共沉淀法合成了A l掺杂N i(OH)2,用XRD表征了合成样品的结构特征:研究了合成样品的循环伏安性能,以及用A l掺杂N i(OH)2为正极活性物质的Zn/N i试验电池的充放电性能。研究结果表明:所合成的A l掺杂N i(OH)2为具有α-型晶体结构的材料,A l掺杂N i(OH)2具有优良的电化学可逆性、良好的充放电性能和较好的电化学循环性能;A l掺杂N i(OH)2作为正极活性物质的Zn/N i试验电池等250次充放电循环容量保持率130.1%,最高放电比容量为420.5mAh/g。
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| 关 键 词： | Al掺杂Ni(OH)2 晶体结构 电化学性能 CV Zn/Ni电池 |
| 文章编号： | 1004-1656（2006）05-0502-04 |
| 收稿时间： | 2005-02-07 |
| 修稿时间： | 2005-12-10 |
Structure and electrochemical performances of Al-doped nickel hydroxide |
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| ZHOU Huan bo,YU Fei,ZHOU Zhen-tao.Structure and electrochemical performances of Al-doped nickel hydroxide[J].Chemical Research and Application,2006,18(5):502-505. |
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| Authors: | ZHOU Huan bo YU Fei ZHOU Zhen-tao |
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| Institution: | 1. The Department of Chemistry, Xiaogan University, Hubei ,Xiaogan 432100,China; 2. College of Material Science and Engimeering,South China University of Teehnolohy, Guangdong, Guanzhou 510640, China |
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| Abstract: | The Al-doped nickel hydroxide was prepared by chemical co-precipitating method.The structures of the compounds were characterized by XDR.The electrochemical properties were tested with cyclic voltammograms(CV).The charging/discharging perfomances of Zn/Ni experimental batteres,with Aldoped nickel hydroxide as the positive electrode active,were measured.The results show that the Al-doped nickel hydroxide is alpha type Ni(OH)_2,and exhibited a excellent electrochemical performances,such as reversibility and electrochemical cyclic characters.The specific discharge capacity is 130.1% of 250~(th)charge/discharge cycle and its highest discharge special capacity is 420.5mAh/g. |
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| Keywords: | Al-doped nickel hydroxide crystal structure electrochemical performance CV Zn/Ni battery |
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