MnCo2O4@Ni(OH)2复合材料的制备及作为超级电容器正极材料的性能研究
Preparation of MnCo2O4@Ni(OH)2 Composite and Its Performance Research as Cathode Material of Supercapacitors
DOI: 10.12677/MS.2018.84037, PDF,  被引量    国家自然科学基金支持
作者: 刘晓菲, 崔振杰, 梁 惠, 高 超, 苏 革, 曹立新：中国海洋大学材料科学与工程学院，山东 青岛
关键词: 超级电容器；复合；比电容；Supercapacitors； Composite； Specific Capacitance
摘要: 采用水热法制备了一种直接生长在泡沫镍基底上的MnCo2O4@Ni(OH)2复合结构电极材料。这种复合结构的电极在增加活性位点时加快氧化还原反应，又能减少粘结剂和导电剂的使用，减小电阻。MnCo2O4@Ni(OH)2复合结构的比电容在1 A•g−1时为1462 F•g−1，优于单独的MnCo2O4电极材料和Ni(OH)2电极材料。为了探索器件的实际应用，我们用MnCo2O4@Ni(OH)2作为正极材料，活性炭作为负极材料，组装成了非对称的超级电容器。它的能量密度为28 Wh kg−1，具有良好的电化学性能。
Abstract: Hydrothermal method is used to prepare MnCo2O4@Ni(OH)2 composite electrode material, which directly grew on Ni foam. The obtained composite structure not only increases active site to accel-erate the redox reaction, but also reduces resistance of electrode. MnCo2O4@Ni(OH)2 as electrode exhibits excellent specific capacitance (1462 F•g−1 at 1 A•g−1 ), which is significantly superior to single MnCo2O4 and Ni(OH)2 electrode material. Besides, an asymmetric supercapacitor is assem-bled using MnCo2O4@Ni(OH)2 as the positive electrode and activated carbon as the negative elec-trode. Electrochemical result demonstrates a high energy density of 28 Wh•kg−1, which shows ex-cellent electrochemical performance.
文章引用：刘晓菲, 崔振杰, 梁惠, 高超, 苏革, 曹立新. MnCo2O4@Ni(OH)2复合材料的制备及作为超级电容器正极材料的性能研究[J]. 材料科学, 2018, 8(4): 332-340. https://doi.org/10.12677/MS.2018.84037

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