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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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α/β互嵌氢氧化镍电极活性材料的结构和电化学性能
Keywords: 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
Abstract:
？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学反应活性、更低的电化学反应阻抗和更高的放电比容量和放电电压。同时,α/β互嵌结构氢氧化镍还具有较好的循环性能。
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