Non-aqueous nanoporous gold based supercapacitors with high specific energy

SCRIPTA MATERIALIA

卷:116

Article

Hou, Ying^1,2  Chen, Luyang²  Hirata, Akihiko²  Fujita, Takeshi²  Chen, Mingwei^1,2,3 

[1] Taiyuan Univ Technol, Key Lab Interface Sci & Engn Adv Mat, Minist Educ, Taiyuan 030024, Peoples R China

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

[3] Japan Sci & Technol Agcy JST, CREST, Saitama 3320012, Japan

关键词: Nanoporous gold;    Polypyrrole;    Supercapacitor;    Ionic liquid;    Dealloying;   

DOI  :  10.1016/j.scriptamat.2016.01.016

来源: Elsevier

【 摘 要 】

In this study, we report that the supercapacitor performance of polypyrrole (PPy) in non-aqueous electrolytes can be dramatically improved by highly conductive nanoporous gold which acts as both the support of active PPy and the current collector of supercapacitors. The excellent electronic conductivity, rich porous structure and large surface area of the nanoporous electrodes give rise to a high specific capacitance and low internal resistance in non aqueous electrolytes. Combining with a wide working potential window of similar to 2 V, the non-aqueous PPy-based supercapacitors show an extraordinary energy density and power density. (C) 2016 Elsevier Ltd. All rights reserved.

【 授权许可】

Free