Fabrication and characterization of flexible and high capacitance supercapacitors based on MnO2/CNT/papers

被引：84

作者：

Kang, Yu Jin ^{[1
]}

Kim, Byungwoo ^{[1
]}

Chung, Haegeun ^{[1
]}

Kim, Woong ^{[1
]}

机构：

[1] Korea Univ, Dept Mat Sci & Engn, Seoul 136713, South Korea

来源：

SYNTHETIC METALS | 2010年 / 160卷 / 23-24期

基金：

新加坡国家研究基金会;

关键词：

Carbon nanotubes; Manganese oxides; Papers; Supercapacitors; Flexible; ELECTROCHEMICAL CAPACITORS; CARBON NANOTUBES; WEARABLE ELECTRONICS; ENERGY-STORAGE; PAPER; PERFORMANCE; DEVICES; GROWTH;

D O I：

10.1016/j.synthmet.2010.09.036

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Flexible paper-based supercapacitors were fabricated using carbon nanotubes (CNTs) and manganese oxides (MnO2), and their electrochemical properties were characterized in a three-electrode system. CNTs were synthesized via water-assisted chemical vapor deposition (CVD) and dispersed in water using the surfactant sodium dodecylbenzenesulfonate (SDBS). The solution containing dispersed CNTs was simply coated on papers by drop-dry method. MnO2 was then electrochemically deposited on the CNT-coated papers. The MnO2/CNT/paper supercapacitors showed high specific capacitance of 540 F/g. Specific energy and specific power were 20 Wh/kg and 1.5 kW/kg, respectively, at current density of 5 A/g in 0.1 M sodium sulfate (Na2SO4) aqueous solution. Demonstrated high capacitance of the paper-based electrochemical capacitor makes it a promising candidate for flexible and low-cost energy storage device applications. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2510 / 2514

页数：5

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