| 分级多孔炭的制备及其电化学性能研究 |
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| 引用本文： | 乔松,孙刚伟,张建华,宋文华,乔文明,凌立成.分级多孔炭的制备及其电化学性能研究[J].炭素技术,2010,29(1):14-19. |
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| 作者姓名： | 乔松 孙刚伟 张建华 宋文华 乔文明 凌立成 |
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| 作者单位： | 华东理工大学,化学工程联合国家重点实验室,上海,200237 |
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| 基金项目： | 国家自然科学基金重点项目(50730003);;教育部新世纪优秀人才支持计划项目(NCET-07-0285);;国家科技支撑计划项目(2007BAE55B00) |
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| 摘 要： | 以间苯二酚和甲醛为前驱体,原位合成的Mg(OH)2为模板剂,KOH作为催化剂、沉淀剂、活化剂,一步法合成具有小/中/大孔的分级多孔炭。使用扫描电镜、透射电镜、氮气吸附、X射线衍射对样品的结构进行表征。通过恒流充放电、循环伏安、电化学阻抗谱,测试样品在1mol/L的(C2H5)4NBF4/碳酸丙烯酯(Propylene carbonatePC)电解液中的电化学性能。结果表明,随着KOH对间苯二酚用量的增加,材料的比表面积和孔容先增大后减小,其最大值分别为1300m2/g和0.89cm3/g。该材料具有良好的容量性能和功率性能,在电流密度0.1A/g时,最高质量比电容可以达到116F/g;当电流密度增大到5A/g时,电容保持率为78%。
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| 关 键 词： | 超级电容器 分级多孔炭 孔结构 模板 |
Preparation and electrochemical performance of hierarchical porous carbons |
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| QIAO Song,SUN Gang-wei,ZHANG Jian-hua,SONG Wen-hua,QIAO Wen-ming,LING Li-cheng.Preparation and electrochemical performance of hierarchical porous carbons[J].Carbon Techniques,2010,29(1):14-19. |
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| Authors: | QIAO Song SUN Gang-wei ZHANG Jian-hua SONG Wen-hua QIAO Wen-ming LING Li-cheng |
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| Affiliation: | State Key Laboratory of Chemical Engineering;East China University of Science and Technology;Shanghai;200237;China |
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| Abstract: | Hierarchical porous carbons with micro/meso/macropores were prepared by a one-step route with resorcinol and formaldehyde as precursors,in-situ synthesized Mg(OH)2 as a template and KOH as reaction catalyst ,precipitating agent and activation agent. The structures of the hierarchical porous carbons were characterized by scanning electron microscopy,transmission electron microscopy,nitrogen adsorption and X-ray diffraction measurements. The electrochemical behavior of the samples was tested by galvanostatic ... |
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| Keywords: | Supercapacitor hierarchical porous carbon pore structure template |
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