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| EDLC电容和电极活性炭孔型及其表面积之间的关系 | |
| 引用本文： | 王立红,豊田昌宏,稻垣道夫. EDLC电容和电极活性炭孔型及其表面积之间的关系[J]. 新型炭材料, 2008, 23(2): 111-115 |
| 作者姓名： | 王立红 豊田昌宏 稻垣道夫 |
| 作者单位： | 1. 大同金属株式会社中央研究所,犬山市 484-0061,日本 2. 大分大学 工学院,大分市870-1192,日本 3. 爱知工业大学工程系,豊田市470-0392,日本 |
| 摘 要： | 研究了商用活性炭作为电极的双电层电容器在水系和有机系电解液中的电容和活性炭孔结构的关系.水系电解液采用1 mol/L的H2SO4溶液、有机系电解液采用1 mol/L的TEMA/PC溶液.结果表明:水系和有机系电解液中的电容存在线性关系.电容由活性炭微孔表面和其他大孔构成的表面两部分提供(分别称为Cmicro和Cext).其中Cmicro较小并对电流有依赖性、而Cext近似为一个常数、不随电流改变. |
| 关 键 词： | 电容 有机系电解液 水系电解液 孔表面积 Capacitance Nonaqueous electrolyte Aqueous electrolyte Pore surface areas EDLC 电容 电极 活性炭 孔型 表面积 关系 surface areas activated carbons capacitance electric double layer small depending current density constant on account of large pores contributions microporous related |
| 文章编号： | 1007-8827(2008)02-0111-05 |
| 修稿时间： | 2008-01-18 |
Dependence of electric double layer capacitance of activated carbons on the types of pores and their surface areas |
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| WANG Li-hong,Masahiro TOYODA,Michio INAGAKI. Dependence of electric double layer capacitance of activated carbons on the types of pores and their surface areas[J]. New Carbon Materials, 2008, 23(2): 111-115 | |
| Authors: | WANG Li-hong Masahiro TOYODA Michio INAGAKI |
| Abstract: | The dependence of electric double layer capacitance on the pore structure of commercially available activated carbons in both nonaqueous and aqueous electrolytes was studied. Capacitance in the nonaqueous electrolyte (propylene carbonate solution of 1 mol/L triethyl-methyl-ammonium tetrafluoroborate) was linearly related to that in the aqueous electrolyte (1 mol/L H2SO4 solution). The contributions of the microporous surface area, Cmicro., and the surface formed on account of other large pores, Cext., were separately evaluated, the former being small and depending strongly on current density and the latter being almost constant. |
| Keywords: | Capacitance Nonaqueous electrolyte Aqueous electrolyte Pore surface areas |
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