A modified activated carbon aerogel for high-energy storage in electric double layer capacitors
A modified activated carbon aerogel for high-energy storage in electric double layer capacitors
复制标题
DOI：
10.1016/j.jpowsour.2006.09.014
复制
发表时间：
2006-12-07
影响因子：
9.2
通讯作者：
Binder, Leo
中科院分区：
文献类型：
--
作者：
Fang, Baizeng;Binder, Leo
一种新型电极材料——改性活性炭气凝胶，通过在活性炭气凝胶（ACA）表面接枝乙烯基三甲氧基硅烷（vtmos）官能团而制成，可用于双电层电容器（EDLC）的高能量存储。表面活性剂vtmos的表面改性增强了ACA的疏水性及其对碳酸亚丙酯（PC）溶剂的亲和力，从而提高了ACA在PC基电解质溶液中的润湿性，不仅降低了ACA微孔内电解质离子传输的阻力，而且更容易形成双电层，从而获得更高的比电容和能量密度。 (c) 2006 Elsevier B.V. 保留所有权利。
A novel electrode material, modified activated carbon aerogel, produced by grafting a vinyltrimethoxysilane (vtmos) functional group on the surface of activated carbon aerogel (ACA), has been developed for high-energy storage in electric double layer capacitor (EDLC). Surface modification with surfactant vtmos enhances the hydrophobicity of ACA and its affinity to propylene carbonate (PC) solvent, which improves the wettability of ACA in a PC-based electrolyte solution, resulting in not only a lower resistance to the transport of electrolyte ions within ACA micropores but also more accessible surface area for the formation of an electric double layer, and accordingly, higher specific capacitance and energy density. (c) 2006 Elsevier B.V. All rights reserved.