Preparation of Tunable 3D Pillared Carbon Nanotube-Graphene Networks for High-Performance Capacitance

被引：323

作者：

Du, Feng ^{[1
]}

Yu, Dingshan ^{[1
]}

Dai, Liming ^{[1
]}

Ganguli, S. ^{[2
]}

Varshney, V. ^{[2
]}

Roy, A. K. ^{[2
]}

机构：

[1] Case Western Reserve Univ, Dept Macromol Sci & Engn, Ctr Adv Sci & Engn Carbon Case4Carbon, Cleveland, OH 44106 USA

[2] USAF, Thermal Sci & Mat Branch, Mat & Mfg Directorate, Res Lab, Dayton, OH 45433 USA

来源：

CHEMISTRY OF MATERIALS | 2011年 / 23卷 / 21期

关键词：

carbon nanotube; graphene; 3D pillared VACNT-graphene; nickel hydroxide; supercapacitors; FILMS; NANOSTRUCTURE; NI(OH)(2); EFFICIENT; HYDROGEN; STORAGE; GROWTH; ARRAYS; ENERGY; OXIDE;

D O I：

10.1021/cm2021214

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：

We have developed a rational strategy for creating the 3D pillared vertically aligned carbon nanotube (VACNT)-graphene architectures by intercalated growth of VACNTs into thermally expanded highly ordered pyrolytic graphite (HOPG). By controlling the fabrication process, the length of the VACNT pillars can be tuned. In conjunction with the electrodeposition of nickel hydroxide to introduce the pseudocapacitance, these 3D pillared VACNT-graphene architectures with a controllable nanotube length were demonstrated to show a high specific capacitance and remarkable rate capability, and they significantly outperformed many electrode materials currently used in the state-of-the-art supercapacitors.

引用

页码：4810 / 4816

页数：7

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