Three-dimensional bicontinuous nanoporous Au/polyaniline hybrid films for high-performance electrochemical supercapacitors

被引：101

作者：

Lang, Xingyou ^{[1
,2
]}

Zhang, Ling ^{[1
]}

Fujita, Takeshi ^{[1
]}

Ding, Yi ^{[3
]}

Chen, Mingwei ^{[1
,4
]}

机构：

[1] Tohoku Univ, WPI Adv Inst Mat Res, Sendai, Miyagi 9808577, Japan

[2] Jilin Univ, Key Lab Automobile Mat, Minist Educ, Sch Mat Sci & Engn, Changchun 130022, Peoples R China

[3] Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China

[4] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Sch Mat Sci & Engn, Shanghai 200030, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2012年 / 197卷

关键词：

Hybrid materials; Nanoporous metal; Polyaniline; Capacitors; Supercapacitors; CARBON MATERIALS; ENERGY-STORAGE; POLYANILINE; ELECTRODES; DEPOSITION; ROUTE; MNO2;

D O I：

10.1016/j.jpowsour.2011.09.006

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 report three-dimensional bicontinuous nanoporous Au/polyaniline (PANI) composite films made by one-step electrochemical polymerization of PANI shell onto dealloyed nanoporous gold (NPG) skeletons for the applications in electrochemical supercapacitors. The NPG/PANI based supercapacitors exhibit ultrahigh volumetric capacitance (similar to 1500 F cm(-3)) and energy density (similar to 0.078 Wh cm(-3)), which are seven and four orders of magnitude higher than these of electrolytic capacitors, with the same power density up to similar to 190W cm(-3). The outstanding capacitive performances result from a novel nanoarchitecture in which pseudocapacitive PANI shells are incorporated into pore channels of highly conductive NPG, making them promising candidates as electrode materials in supercapacitor devices combing high-energy storage densities with high-power delivery. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：325 / 329

页数：5

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