Electrochemical Capacitor Behavior of RuO2 Nanosheets in Buffered Solution and Its Application to Hybrid Capacitor

被引：14

作者：

Makino, Sho ^{[1
]}

Ban, Takayuki ^{[1
]}

Sugimoto, Wataru ^{[1
]}

机构：

[1] Shinshu Univ, Fac Text Sci & Technol, Ueda, Nagano 3868567, Japan

来源：

ELECTROCHEMISTRY | 2013年 / 81卷 / 10期

基金：

日本科学技术振兴机构;

关键词：

Hybrid Capacitor; Ruthenium Oxide; Nanosheets; Buffer Solution; HYDROUS RUTHENIUM OXIDE; CHARGE STORAGE MECHANISM; DIOXIDE FILMS; SUPERCAPACITORS; SPECTROSCOPY; ELECTRODE; BATTERY; PROTON;

D O I：

10.5796/electrochemistry.81.795

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical property of RuO2 nanosheets in acetic acid-lithium acetate buffered electrolytes was studied in an attempt to understand the charge storage mechanism in neutral solutions and to improve the charge storage capability of aqueous hybrid capacitors. High specific capacitance and good rate capability were obtained for RuO2 nanosheets in acetic acid buffered solution containing Li+ (pH similar to 5.3). Maximum capacitance of 1038 F g(-1) was achieved, which is higher than the values in acidic electrolyte. Using RuO2 nanosheet electrodes as positive electrode in acetic acid-lithium acetate buffered electrolyte with a multi-layered Li negative electrode, high specific energy of 724 Wh kg(-1) based on the positive electrode mass was attained. (c) The Electrochemical Society of Japan, All rights reserved.

引用

页码：795 / 797

页数：3

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