Electrosynthesis of Bi2O3 thin films and their use in electrochemical supercapacitors

被引：265

作者：

Gujar, T. P. ^{[1
]}

Shinde, V. R.

Lokhande, C. D.

Han, Sung-Hwan

机构：

[1] Shivaji Univ, Dept Phys, Thin Film Phys Lab, Kolhapur 416004, Maharashtra, India

[2] Hanyang Univ, Dept Chem, Seoul 133791, South Korea

来源：

JOURNAL OF POWER SOURCES | 2006年 / 161卷 / 02期

关键词：

bismuth oxide; electrodeposition; electrochemical supercapacitor; specific capacitance;

D O I：

10.1016/j.jpowsour.2006.05.036

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：

Bismuth oxide (Bi2O3) thin films are grown on copper substrates at room temperature by electrodeposition from an aqueous alkaline nitrate bath. The usefulness of electrochemically deposited Bi2O3 for electrochemical supercapacitors. is proposed for the first time. The supercapacitor properties of Bi2O3 electrode are studied in aqueous NaOH solution. The Bi2O3 electrode exhibits very good electrochemical supercapacitive charactenstics as well as stability in aqueous NaOH electrolyte. The effect of electrolyte concentration, scan rate, and number of cycles on the specific capacitance of Bi2O3 electrodes has been studied. The highest specific capacitance achieved with the electrodeposited Bi2O3 films is 98 F g(-1). (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1479 / 1485

页数：7

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