| α/β互嵌氢氧化镍电极活性材料的结构和电化学性能 |
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| 引用本文： | 李延伟,李月晓,姚金环,刘长久,朱文凤.α/β互嵌氢氧化镍电极活性材料的结构和电化学性能[J].材料研究学报,2011,25(1):51-56. |
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| 作者姓名： | 李延伟 李月晓 姚金环 刘长久 朱文凤 |
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| 作者单位： | 1.桂林理工大学化学与生物工程学院 桂林 541004
2.桂林理工大学有色金属及材料加工新技术教育部重点实验室 桂林 541004 |
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| 基金项目： | 国家自然科学基金20563001、中国博士后科学基金20090450188和广西自然科学基金0991247资助项目。 |
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| 摘 要： | 采用化学共沉淀法制备了具有α相和β相相互嵌套结构的氢氧化镍.用X-射线衍射(XRD),傅里叶变换红外光谱(FT-IR)和扫描电子显微镜(SEM)分析了样品的微观结构和表面形貌.用循环伏安(CV)、交流阻抗(EIS)和充放电测试表征了样品的电化学性能.结果表明,与纯β相氢氧化镍相比,α/β互嵌结构的氢氧化镍具有更高的电化...
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| 关 键 词： | 无机非金属材料 氢氧化镍 电极活性材料 微观结构 电化学性能 |
| 收稿时间： | 2010-10-08 |
| 修稿时间： | 2010-11-14 |
The Structure and Electrochemical Performance of α/β Mutually Embedded Nickel Hydroxide |
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| LI Yanwei LI Yuexiao YAO Jinhuan LIU Changjiu ZHU Wenfeng .College of Chemistry , Bioengineering,Guilin University of Technology,Guilin, .Key Laboratory of New Processing Technology for Nonferrous Metals , Materials of Ministry of Education,Guilin.The Structure and Electrochemical Performance of α/β Mutually Embedded Nickel Hydroxide[J].Chinese Journal of Materials Research,2011,25(1):51-56. |
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| Authors: | LI Yanwei LI Yuexiao YAO Jinhuan LIU Changjiu ZHU Wenfeng College of Chemistry Bioengineering Guilin University of Technology Guilin Key Laboratory of New Processing Technology for Nonferrous Metals Materials of Ministry of Education Guilin |
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| Affiliation: | 1. College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004
2. Key Laboratory of New Processing Technology for Nonferrous Metals and Materials of Ministry of Education, Guilin University of Technology, Guilin 541004 |
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| Abstract: | α/β mutually embedded nickel hydroxide has been synthesized by chemical coprecipitation method. The microstructure and surface morphology of the prepared samples were analyzed by X–ray diffraction (XRD), Fourier transform infrared (FTIR), and scanning electron microscopy (SEM). The electrochemical performance of the prepared sample was characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and charge discharge tests. Compared to the pure β nickel hydroxide, the α/β mutually embedded nickel hydroxide shows a higher electrochemical reaction activity, lower electrochemical reaction impedance, higher discharge capacity, and higher discharge voltage. Moreover, α/β mutually embedded nickel hydroxide has better cyclic performance. |
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| Keywords: | inorganic non&ndash metallic materials nickel hydroxide electrode active material microstructure electrochemical performance |
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