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
收藏
页码：3303 / 3307
页数：5
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