High-performance supercapacitor based on multi-structural CuS@polypyrrole composites prepared by in situ oxidative polymerization

被引：144

作者：

Peng, Hui ^{[1
]}

Ma, Guofu ^{[1
]}

Sun, Kanjun ^{[2
]}

Mu, Jingjing ^{[1
]}

Wang, Hui ^{[1
]}

Lei, Ziqiang ^{[1
]}

机构：

[1] Northwest Normal Univ, Key Lab Ecoenvironm Related Polymer Mat, Key Lab Polymer Mat Gansu Prov, Coll Chem & Chem Engn,Minist Educ, Lanzhou 730070, Peoples R China

[2] Lanzhou City Univ, Coll Chem & Environm Sci, Lanzhou 730070, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2014年 / 2卷 / 10期

基金：

美国国家科学基金会;

关键词：

COPPER SULFIDE; ELECTRODE MATERIAL; CARBON; NANOCOMPOSITES; NANOPARTICLES; CAPACITANCE; CONVERSION; STABILITY; GROWTH; MOS2;

D O I：

10.1039/c3ta13859c

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 supercapacitor electrode composed of CuS microspheres with polypyrrole (PPy) uniformly inserted into the sheet-like subunit structure and coated onto the CuS surface to enhance the pseudocapacitive performance. Novel sphere-like CuS particles with intertwined sheet-like subunit structure are fabricated by a solvothermal approach without any surfactant or template. A CuS@PPy composite electrode is prepared by in situ oxidation polymerization of pyrrole in the presence of the CuS suspension. The CuS@PPy composite (CuS content is 16.7 wt%) exhibits a high specific capacitance of 427 F g(-1) (at 1 A g(-1)) and its capacitance can still retain 88% after 1000 cycles.

引用

页码：3303 / 3307

页数：5

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