| 层间阴离子对铝取代氢氧化镍电化学性能的影响 |
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| 引用本文： | 李延伟,李月晓,姚金环,姜吉琼,张正刚,刘长久.层间阴离子对铝取代氢氧化镍电化学性能的影响[J].化工学报,2010,61(10):2703-2707. |
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| 作者姓名： | 李延伟 李月晓 姚金环 姜吉琼 张正刚 刘长久 |
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| 作者单位： | 桂林理工大学化学与生物工程学院;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 |
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| 基金项目： | 国家自然科学基金，广西自然科学基金，广西科学研究与技术开发计划项目，广西研究生教育创新计划项目 |
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| 摘 要： | 采用化学共沉淀法制备出层间分别含有SO42-和NO3-的铝取代氢氧化镍样品。利用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)对样品的微观结构和表面形貌进行了分析。采用循环伏安(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,层间含有NO3-的铝取代氢氧化镍比层间含有SO2-的铝取代氢氧化镍具有更好的电化学反应可逆性、更高的质子传递系数和放电比容量。
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| 关 键 词： | 氢氧化镍 阴离子 微观结构 电化学性能 |
Influence of intercalated anions on electrochemical performance of Al substituted nickel hydroxide |
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| LI Yanwei,LI Yuexiao,YAO Jinhuan,JIANG Jiqiong,ZHANG Zhenggang,LIU Changjiu.Influence of intercalated anions on electrochemical performance of Al substituted nickel hydroxide[J].Journal of Chemical Industry and Engineering(China),2010,61(10):2703-2707. |
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| Authors: | LI Yanwei LI Yuexiao YAO Jinhuan JIANG Jiqiong ZHANG Zhenggang LIU Changjiu |
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| Abstract: | Al substituted nickel hydroxide with interlayer SO-4 or NO-3 were synthesized by chemical coprecipitation method and their microstructure and morphology were characterized by X-ray diffraction (XRD),Fourier transform infrared (FT-IR)and scanning electron microscopy (SEM）.The electrochemical performance of these samples was measured by cyclic voltammetry (CV), electrochemical impedence spectroscopy (EIS)and charge-discharge test.The results showed that better reaction reversibility, higher proton diffuse coefficient and discharge capacity were obtained for the nickel hydroxide with interlayer NO-3 than for that with interlayer SO-4. |
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