The role of mass transport pathway in wormholelike mesoporous carbon for supercapacitors

被引：38

作者：

Liang, Yeru ^{[1
]}

Liang, Fengxue ^{[1
]}

Li, Zhenghui ^{[1
]}

Wu, Dingcai ^{[1
,2
]}

Yan, Fangyu ^{[1
]}

Li, Siyu ^{[1
]}

Fu, Ruowen ^{[1
,2
]}

机构：

[1] Sun Yat Sen Univ, Inst Mat Sci, PCFM Lab, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China

[2] Sun Yat Sen Univ, DSAPM Lab, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2010年 / 12卷 / 36期

关键词：

DOUBLE-LAYER CAPACITORS; NANOPOROUS CARBON; ACTIVATED CARBON; FABRICATION; PERFORMANCE; ELECTRODES;

D O I：

10.1039/c003213a

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present paper, we demonstrate the importance of the role of a mass transport pathway (MTP) in wormholelike mesoporous carbon (WMC) through studying the ion diffusion behaviors within two different wormholelike mesopore networks with and without MTP. Our results reveal that the introduction of MTP is very helpful in improving ion diffusion properties. The as-prepared WMC with a MTP of ca. 9.7 nm exhibits notably better electric double layer performance as compared to the conventional WMC without a MTP. For example, even at the quick sweep rate of 50 mV s(-1), the surface specific capacitance of the former is 21.6 mu F cm(-2), which is almost 4 times as high as that of the latter (5.5 mu F cm(-2)).

引用

页码：10842 / 10845

页数：4

共 19 条

[1] Influence of pore structure on electric double-layer capacitance of template mesoporous carbons [J].