Three-dimensional nanoporous gold for electrochemical supercapacitors

被引：109

作者：

Lang, X. Y. ^{[1
]}

Yuan, H. T. ^{[2
,3
]}

Iwasa, Y. ^{[2
,3
]}

Chen, M. W. ^{[1
]}

机构：

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

[2] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan

[3] Univ Tokyo, Quantum Phase Elect Ctr, Tokyo 1138656, Japan

来源：

SCRIPTA MATERIALIA | 2011年 / 64卷 / 09期

关键词：

Electrochemical capacitor; Nanoporous gold; Double-layer capacitor; Energy storage; CAPACITANCE;

D O I：

10.1016/j.scriptamat.2011.01.038

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report the capacitive performances of an electrochemical supercapacitor with three-dimensional nanoporous gold (NPG) as both current collectors and electrodes. The bicontinuous NPG with a large internal surface and high conductivity shows promising capacitive properties in both a conventional aqueous electrolyte and a green ionic liquid electrolyte. In comparison with the performance in the aqueous electrolyte, the NPG-based supercapacitor in the ionic liquid electrolyte shows higher energy density because of the high operation voltage arising from the low ionic mobility of the room-temperature ionic liquid. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：923 / 926

页数：4

共 27 条

[1] Highly Dispersed RuO2 Nanoparticles on Carbon Nanotubes: Facile Synthesis and Enhanced Supercapacitance Performance [J].

Bi, Rong-Rong ;

Wu, Xing-Long ;

Cao, Fei-Fei ;

Jiang, Ling-Yan ;

Guo, Yu-Guo ;

Wan, Li-Jun .

JOURNAL OF PHYSICAL CHEMISTRY C, 2010, 114 (06) :2448-2451

[2] Ultracapacitors: why, how, and where is the technology [J].

Burke, A .

JOURNAL OF POWER SOURCES, 2000, 91 (01) :37-50

[3]

Chmiola J, 2006, SCIENCE, V313, P1760, DOI 10.1126/science/1132195

[4] Electrochemical capacitance of mesoporous gold [J].

Cortie, MB ;

Maaroof, AI ;

Smith, GB .

GOLD BULLETIN, 2005, 38 (01) :14-22

[5] On tuning the morphology of nanoporous gold [J].

Detsi, E. ;

van de Schootbrugge, M. ;

Punzhin, S. ;

Onck, P. R. ;

De Hosson, J. T. M. .

SCRIPTA MATERIALIA, 2011, 64 (04) :319-322

[6] Nanoporous Metals for Catalytic and Optical Applications [J].

Ding, Yi ;

Chen, Mingwei .

MRS BULLETIN, 2009, 34 (08) :569-576

[7] Evolution of nanoporosity in dealloying [J].

Erlebacher, J ;

Aziz, MJ ;

Karma, A ;

Dimitrov, N ;

Sieradzki, K .

NATURE, 2001, 410 (6827) :450-453

[8] Carbon materials for supercapacitor application [J].

Frackowiak, Elzbieta .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2007, 9 (15) :1774-1785

[9] Unusually Small Electrical Resistance of Three-Dimensional Nanoporous Gold in External Magnetic Fields [J].

Fujita, T. ;

Okada, H. ;

Koyama, K. ;

Watanabe, K. ;

Maekawa, S. ;

Chen, M. W. .

PHYSICAL REVIEW LETTERS, 2008, 101 (16)

[10] Three-dimensional morphology of nanoporous gold [J].

Fujita, Takeshi ;

Qian, Li-Hua ;

Inoke, Koji ;

Erlebacher, Jonah ;

Chen, Ming-Wei .

APPLIED PHYSICS LETTERS, 2008, 92 (25)

← 1 2 3 →