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| 孔结构对煤基活性炭电极材料电化学性能的影响(英文) | |
| 引用本文： | 张传祥,张睿,邢宝林,成果,谢应波,乔文明,詹亮,梁晓怿,凌立成.孔结构对煤基活性炭电极材料电化学性能的影响(英文)[J].新型炭材料,2010,25(2). |
| 作者姓名： | 张传祥 张睿 邢宝林 成果 谢应波 乔文明 詹亮 梁晓怿 凌立成 |
| 作者单位： | 1. 化学工程联合国家重点实验室,华东理工大学,上海,200237;河南理工大学,材料科学与工程学院,河南,焦作,454000 2. 化学工程联合国家重点实验室,华东理工大学,上海,200237 3. 河南理工大学,材料科学与工程学院,河南,焦作,454000 |
| 摘 要： | 以太西无烟煤为前驱体,NaOH为活化剂制备电化学电容器电极材料。采用N2吸附法及电化学测试对活性炭的孔结构和电化学性能进行了表征。在1mol/L(C2H5)4NBF4/碳酸丙烯酯有机电解液体系中,研究了孔结构对活性炭电极材料的电化学性能的影响。结果表明:以NaOH为活化剂可制备出比表面积943mol/L～2479mol/L、比电容57F/g～167F/g的活性炭电极材料。活性炭电极材料的比电容不仅取决比表面积,而且与活性炭的孔径分布有关。孔径为2nm～3nm的中孔的存在可以有效降低电解液的扩散阻力,提高电极材料比表面积的利用率,从而使电容器的电化学性能得到增强。 |
| 关 键 词： | 活性炭 电化学电容器 电化学性能 孔结构 |
Effect of pore structure on the electrochemical performance of coal-based activated carbons in non-aqueous electrolyte |
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| ZHANG Chuan-xiang,ZHANG Rui,XING Bao-lin,CHENG Guo,Xie Ying-bo,QIAO Wen-ming,ZHAN Liang,LIANG Xiao-yi,LING Li-cheng.Effect of pore structure on the electrochemical performance of coal-based activated carbons in non-aqueous electrolyte[J].New Carbon Materials,2010,25(2). | |
| Authors: | ZHANG Chuan-xiang ZHANG Rui XING Bao-lin CHENG Guo Xie Ying-bo QIAO Wen-ming ZHAN Liang LIANG Xiao-yi LING Li-cheng |
| Affiliation: | ZHANG Chuan-xiang1,2,ZHANG Rui1,XING Bao-lin2,CHENG Guo1,Xie Ying-bo1,QIAO Wen-ming1,ZHAN Liang1,LIANG Xiao-yi1,LING Li-cheng1(1. State Key Laboratory of Chemical Engineering,East China University of Science , Technology,Shanghai 200237,China,2. School of Materials Science , Technology,Henan Polytechnic University,Jiaozuo 454000,China) |
| Abstract: | Anthracite was activated by NaOH to prepare high-performance activated carbons as electrodes for electric double-layer capacitors. The porous structure and electrochemical characteristics of the carbons were investigated by nitrogen sorption and electrochemical methods. The effect of pore structure on the electrochemical performance of the carbons in a 1 mol/L (C2H5)4NBF4/propylene carbonate (PC) electrolyte was investigated. The as-prepared activated carbons exhibit large surface areas (943-2 479 m2/g) and... |
| Keywords: | Activated carbon Electric double-layer capacitors Electrochemical performance Pore structure |
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