A nanostructured graphene/polyaniline hybrid material for supercapacitors

被引：577

作者：

Wang, Hualan ^{[1
]}

Hao, Qingli ^{[1
]}

Yang, Xujie ^{[1
]}

Lu, Lude ^{[1
]}

Wang, Xin ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Key Lab Soft Chem & Funct Mat, Minist Educ, Nanjing 210094, Peoples R China

来源：

NANOSCALE | 2010年 / 2卷 / 10期

关键词：

EXFOLIATED GRAPHITE OXIDE; ELECTROCHEMICAL CAPACITANCE; CARBON NANOTUBES; GRAPHENE OXIDE; COMPOSITES; FABRICATION; POLYANILINE; SHEETS; REDUCTION; FILMS;

D O I：

10.1039/c0nr00224k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A flexible graphene/polyaniline hybrid material as a supercapacitor electrode was synthesized by an in situ polymerization-reduction/dedoping-redoping process. This product was first prepared in an ethylene glycol medium, then treated with hot sodium hydroxide solution to obtain the reduced graphene oxide/polyaniline hybrid material. Sodium hydroxide also acted as a dedoping reagent for polyaniline in the composite. After redoping in an acidic solution, the thin, uniform and flexible conducting graphene/polyaniline product was obtained with unchanged morphology. The chemical structure of the materials was characterized by X-ray photoelectron spectroscopy and Raman spectroscopy. The composite material showed better electrochemical performances than the pure individual components. A high specific capacitance of 1126 F g(-1) was obtained with a retention life of 84% after 1000 cycles for supercapacitors. The energy density and power density were also better than those of pure component materials.

引用

页码：2164 / 2170

页数：7

共 27 条

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