| 过渡金属负载对活性炭电极比电容的影响 |
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| 引用本文： | 孟庆函,李开喜,凌立成.过渡金属负载对活性炭电极比电容的影响[J].兵器材料科学与工程,2003,26(5):28-32. |
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| 作者姓名： | 孟庆函 李开喜 凌立成 |
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| 作者单位： | 1. 北京化工大学,材料科学与工程学院,可控化学反应科学与技术基础教育部重点实验室,北京,100029
2. 中科院,山西煤炭化学研究所,煤转化国家重点实验室,太原,030001 |
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| 基金项目： | 北京化工大学校科研和教改项目;QN0249; |
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| 摘 要： | 选用不同孔结构的活性炭采用浸渍法负载金属离子 ,考察活性炭在负载前后的比电容变化情况。研究表明 ,金属Mn、Co、Ni具有比较明显的准电容效应 ,其中负载金属Mn的中孔活性炭和微孔活性炭的比电容分别增加6 3.17%和 19.6 9% ,而金属Mo、Fe和Y的准电容效应不显著。中孔活性炭负载金属Mn时 ,比电容随负载量的增加而上升 ;微孔活性炭负载 5 %时比电容最大为 340 .16F/ g。
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| 关 键 词： | 活性炭 双电层电容器 比电容 |
| 文章编号： | 1004-244X(2003)05-0028-05 |
| 修稿时间： | 2002年7月12日 |
Effect of loaded metal on the specific capacitances of the activated carbon electrodes |
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| MENG Qing-han ,LI Kai-xi ,LING Li-cheng.Effect of loaded metal on the specific capacitances of the activated carbon electrodes[J].Ordnance Material Science and Engineering,2003,26(5):28-32. |
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| Authors: | MENG Qing-han LI Kai-xi LING Li-cheng |
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| Affiliation: | MENG Qing-han 1,LI Kai-xi 2,LING Li-cheng 2 |
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| Abstract: | Two activated carbons with different pore size distributions were selected to impregnate with six species metals, which used as electrode materials of the electric double-layer capacitors (EDLC). The effect of loaded metals on the characterization of AC as polarizable electrodes has been investigated. It was found that some metals such as Mn, Co, Ni had obvious pseudo-capacitance effect to improve the specific capacitance of Acs, and the capacitances of AC loaded metal Mn with micro and mesopore size distributions increased 63.17% and19.69% respectively. The capacitances of mesopore activated carbon were increased with the increasement of the loaded weight of metal Mn, but the maximal capacitance of the micropore AC was 340.16F/g with 5% loaded weight metal Mn. |
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| Keywords: | activated carbon electric double layer capacitors specific capacitance |
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