A doped activated carbon prepared from polyaniline for high performance supercapacitors

被引：192

作者：

Li, Limin ^{[1
]}

Liu, Enhui ^{[1
]}

Li, Jian ^{[1
]}

Yang, Yanjing ^{[1
]}

Shen, Haijie ^{[1
]}

Huang, Zhengzheng ^{[1
]}

Xiang, Xiaoxia ^{[1
]}

Li, Wen ^{[1
]}

机构：

[1] Xiangtan Univ, Key Lab Environmentally Friendly Chem & Applicat, Minist Educ, Coll Chem, Xiangtan 411105, Hunan, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2010年 / 195卷 / 05期

关键词：

Supercapacitor; Polyaniline; Doped activated carbon; X-ray photoelectron spectroscopy; Electrochemical properties; COMPOSITE ELECTRODES; CAPACITANCE BEHAVIOR; RUTHENIUM OXIDE; NITROGEN; SURFACE;

D O I：

10.1016/j.jpowsour.2009.09.016

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：

A novel doped activated carbon has been prepared from H2SO4-doped polyaniline which is prepared by the oxypolymerization of aniline. The morphology, surface chemical composition and surface area of the carbon have been investigated by scanning electron microscope, X-ray photoelectron spectroscopy and Brunaner-Emmett-Teller measurement, respectively. Electrochemical properties of the doped activated carbon have been studied by cyclic voltammograms, galvanostatic charge/discharge. and electrochemical impedance spectroscopy measurements in 6 mol 1(-1) KOH. The specific capacitance of the carbon is as high as 235 F g(-1), the specific capacitance hardly decreases at a high current density 11 A g-1 after 10,000 cycles, which indicates that the carbon possesses excellent cycle durability and may be a promising candidate for supercapacitors. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1516 / 1521

页数：6

共 32 条

[1]

[Anonymous], 1999, ELECTROCHEMICAL SUPE

[2] Bituminous coal-based activated carbons modified with nitrogen as adsorbents of hydrogen sulfide [J].