Hierarchical composites of sulfonated graphene-supported vertically aligned polyaniline nanorods for high-performance supercapacitors

被引：98
作者：
Ma, Biao [1 ]
Zhou, Xiao [1 ]
Bao, Hua [1 ]
Li, Xingwei [1 ]
Wang, Gengchao [1 ]
机构：
[1] E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat, Key Lab Ultrafine Mat,Minist Educ, Shanghai 200237, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2012年 / 215卷
基金：
中国国家自然科学基金;
关键词：
Hierarchical composites; Graphene nanosheets; Polyaniline; Interfacial polymerization; Supercapacitors; ELECTROCHEMICAL CAPACITORS; REDOX SUPERCAPACITOR; MESOPOROUS CARBON; OXIDE; ELECTRODE; NANOPLATELETS; SHEETS; FILMS;
D O I：
10.1016/j.jpowsour.2012.04.083
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：
Hierarchical composites of sulfonated graphene-supported vertically aligned polyaniline nanorods (sGNS/PANI) are successfully synthesized via interfacial polymerization of aniline monomers in the presence of sulfonated graphene nanosheets (sGNS). The FE-SEM images indicate that the morphologies of sGNS/PANI composites can be controlled by adjusting the concentration of aniline monomers. FTIR and Raman spectra reveal that aligned PANI nanorod arrays for sGNS/PANI exhibit higher degree of conjugation compared with pristine PANI nanorods. The hierarchical composite based on the two-electrode cell possesses higher specific capacitance (497 F g(-1), at 0.2 A g(-1)), better rate capability and cycling stability (5.7% capacitance loss after 2000 cycles) than those of pristine PANI nanorods. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：36 / 42
页数：7
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