MnO2-assisted fabrication of PANI/MWCNT composite and its application as a supercapacitor

被引：25

作者：

Yang, Fan ^{[2
]}

Xu, Maowen ^{[1
]}

Bao, Shu-Juan ^{[1
,2
]}

Sun, Qiang-Qiang ^{[1
]}

机构：

[1] Southwest Univ, Chongqing Key Lab Adv Mat & Technol Clean Energie, Inst Clean Energy & Adv Mat, Fac Mat & Energy, Chongqing 400715, Peoples R China

[2] Xinjiang Univ, Key Lab Mat & Technol Clean Energy, Minist Educ, Key Lab Adv Funct Mat,Inst Appl Chem, Urumqi 830046, Xinjiang Autono, Peoples R China

来源：

RSC ADVANCES | 2014年 / 4卷 / 63期

基金：

中国国家自然科学基金;

关键词：

NANOSTRUCTURED MATERIALS; ELECTRODE MATERIALS; GRAPHENE SHEETS; POROUS CARBON; PERFORMANCE; POLYANILINE; POLYMERIZATION; NANOCOMPOSITE; SPHERES; FILMS;

D O I：

10.1039/c4ra04905e

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Manganese dioxide (MnO2) has been used as a sacrificial template to fabricate a polyaniline/multi-walled carbon nanotube (PANI/MWCNT) composite with core-shell structure through a facile route. The as-synthesized samples have been characterized by Raman spectra, Fourier transform infrared spectra, field emission scanning electron microscopy and transmission electron microscopy for their microstructure and morphology. A series of electrochemical measurements have been performed to study the effects of microstructure and morphology of the samples on their capacitive performance. The results indicate that the as-prepared PANI/MWCNT composite with a core-shell structure provides fast ionic channels for electrochemical energy storage. A maximum specific capacitance of 764 F g(-1) can be achieved from the hybrid at a current density of 0.25 A g(-1), and a fairly good value of 509 F g(-1) can be obtained even at a higher current density of 3 A g(-1).

引用

页码：33569 / 33573

页数：5

共 27 条

[1] Tightly connected MnO2-graphene with tunable energy density and power density for supercapacitor applications [J].