| 低温热处理制备介孔NiO、Co3O4及超电容性能研究 |
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| 引用本文： | 郑明波,凌宗欣,廖书田,杨振江,姬广斌,曹洁明,陶杰.低温热处理制备介孔NiO、Co3O4及超电容性能研究[J].化学学报,2009,67(10):1069-1074. |
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| 作者姓名： | 郑明波 凌宗欣 廖书田 杨振江 姬广斌 曹洁明 陶杰 |
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| 作者单位： | 南京航空航天大学材料与科学技术学院,纳米材料研究所,南京,210016 |
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| 基金项目： | 国家自然科学基金，江苏省自然科学基金，江苏省高校研究生科技创新计划 |
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| 摘 要： | 在不使用有机试剂的条件下, 通过简单的水热法制备了纳米结构的Ni(OH)2与Co(OH)2, 低温热处理得到NiO与Co3O4. 透射电子显微镜及N2等温吸附-脱附测试结果表明金属氧化物具有无序的介孔结构及高比表面积. 电化学测试结果表明介孔金属氧化物具有良好的超电容性能, 介孔NiO, Co3O4在5 mA放电电流下的比电容分别达176, 298 F•g－1.
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| 关 键 词： | 介孔金属氧化物 纳米结构 超级电容器 |
| 收稿时间： | 2008-9-25 |
| 修稿时间： | 2008-10-29 |
Synthesis of Mesoporous NiO and Co3O4 by Low-temperature Heat-treatment and Their Application to Supercapacitor |
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| Zheng Mingbo,Ling Zongxin,Liao Shutian,Yang Zhenjiang,Ji Guangbin,Cao Jieming,Tao Jie.Synthesis of Mesoporous NiO and Co3O4 by Low-temperature Heat-treatment and Their Application to Supercapacitor[J].Acta Chimica Sinica,2009,67(10):1069-1074. |
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| Authors: | Zheng Mingbo Ling Zongxin Liao Shutian Yang Zhenjiang Ji Guangbin Cao Jieming Tao Jie |
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| Institution: | Nanomaterials Research Institute;College of Materials Science and Technology;Nanjing University of Aeronautics and Astronautics;Nanjing 210016 |
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| Abstract: | Ni(OH)2 and Co(OH)2 with a nanostructure were synthesized by an easy hydrothermal method without using any organic reagent. NiO and Co3O4 were obtained via heat-treatment of the hydrates at 250 ℃ and characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and N2 adsorption-desorption analysis. The characterization results indicate that the metal oxides have a disordered mesoporous structure and high BET surface area. The results of electrochemical tests show that the mesoporous metal oxides have fine supercapacitive behaviors and their specific capacitance values at the discharging current of 5 mA are 176 and 298 F•g－1, respectively. |
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| Keywords: | mesoporous metal oxide nanostructure supercapacitor |
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