Nanowindow-regulated specific capacitance of supercapacitor electrodes of single-wall carbon nanohorns

被引:271
作者
Yang, Cheol-Min
Kim, Yong-Jung
Endo, Morinobu
Kanoh, Hirofumi
Yudasaka, Masako
Iijima, Sumio
Kaneko, Katsumi
机构
[1] Chiba Univ, Fac Sci, Dept Chem, Inage, Chiba 2638522, Japan
[2] Shinshu Univ, Inst Carbon Sci & Technol, Nagano 3808553, Japan
[3] NEC Corp Ltd, SORST, Japan Sci & Technol Agcy, Tsukuba, Ibaraki 3058501, Japan
关键词
D O I
10.1021/ja065501k
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The solvated ion size of electrolytes increases in the following order; SO42-(H2O)12 (0.53 nm) < (C2H5)4N+·7acetonitrile (Et4N+·7ACN, 1.30 nm) < (C2H5)4N+·4propylene carbonate (Et4N+·4PC, 1.35 nm). The size difference between the nanowindows of single-wall carbon nanohorns and the solvated ions of electrolytes should be an important factor in the accessibility of the ions to the internal spaces through the nanowindow. Copyright © 2006 American Chemical Society.
引用
收藏
页码:20 / 21
页数:2
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