| 阳极氧化/GCD新工艺法制备镍基超级电容器薄膜电极 |
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| 引用本文： | 易超,熊信柏,邹智标,李俊杰,黄拓,李彬,马俊,曾燮榕.阳极氧化/GCD新工艺法制备镍基超级电容器薄膜电极[J].物理化学学报,2015,31(1):99-104. |
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| 作者姓名： | 易超 熊信柏 邹智标 李俊杰 黄拓 李彬 马俊 曾燮榕 |
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| 作者单位： | 深圳大学材料科学与工程学院, 深圳特种功能材料重点实验室, 广东 深圳 518060 |
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| 基金项目： | 大学生创新训练项目(0000232321), 深圳大学教学改革项目(JG2012084),国家自然科学基金(51172147, 50702034)资助 |
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| 摘 要： | 采用磷酸阳极氧化法在金属镍表面形成阳极氧化复合膜,在1 mol·L-1氢氧化钾溶液中进行大电流密度恒流充放电(GCD)处理, 使基体表面形成一层多孔纳米花瓣状膜. 采用扫描电镜(SEM), X射线光电子能谱(XPS), X射线衍射(XRD)仪, 对膜的形貌、组成和结构进行了表征, 使用电化学工作站、电池寿命测试仪对该膜的电容特性进行了测试. 结果表明, 所制氧化膜由三维多孔纳米花瓣状的NiO、α-Ni(OH)2和β-Ni(OH)2构成, 该膜具有优异的电容特性, 其在电流密度为6.7 A·g-1时,比电容量达1509 F·g-1, 而当电流密度为66.7 A·g-1时,比电容量为1120 F·g-1 (为6.7A·g-1时的74%).在电流密度为66.7 A·g-1时, 经过2000次循环测试后比电容量基本保持不变.
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| 关 键 词： | 超级电容器 阳极氧化 恒流充放电 镍 薄膜 |
| 收稿时间： | 2014-09-29 |
| 修稿时间： | 2014-11-05 |
Fabrication of Nickel-Based Composite Film Electrode for Supercapacitors by a New Method of Anodization/GCD |
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| YI Chao,XIONG Xin-Bo,ZOU Zhi-Biao,LI Jun-Jie,HUANG Tuo,LI Bin,MA Jun,ZENG Xie-Rong.Fabrication of Nickel-Based Composite Film Electrode for Supercapacitors by a New Method of Anodization/GCD[J].Acta Physico-Chimica Sinica,2015,31(1):99-104. |
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| Authors: | YI Chao XIONG Xin-Bo ZOU Zhi-Biao LI Jun-Jie HUANG Tuo LI Bin MA Jun ZENG Xie-Rong |
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| Institution: | Shenzhen Key Laboratory of Special Functional Materials, Department of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, Guangdong Province, P. R. China |
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| Abstract: | Anickel-based composite filmwas fabricated on Ni foil, by two-electrode anodization and galvanostatic charge-discharge (GCD) treatment. The surface morphology, states of chemical species, and crystal structure of the filmwere characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD). The electrochemical performance was tested using an electrochemical workstation and battery program-control test system. The test results indicated that the filmpossessed a nanoflower-like morphology, and consisted of NiO, α-Ni(OH)2 and β-Ni(OH)2. The NiO-α-Ni(OH)2-β-Ni(OH)2 compounds exhibiting a high specific capacitance, superior rate capability, and good cyclability (1509 F·g-1 at 6.7A·g-1, 1120 F·g-1 at 66.7 A·g-1, after 2000 cycles, the capacitance of the filmremained unchanged). |
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| Keywords: | Supercapacitor Anodization Galvanostatic charge-discharge Nickel Film |
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