Facile preparation of orange-like Bi2O2.33 microspheres for high performance supercapacitor application

• Published in: Materials letters Vol. 90; no. 1; pp. 90 - 92
• Main Authors: Huang, Xiangjin, Yan, Jing, Zeng, Fulong, Yuan, Xiaoli, Zou, Wujun, Yuan, Dingsheng
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.01.2013
• Subjects: Bi2O2.33 microspheres; capacitance; electrodes; electron transfer; energy; Energy storage; Porous materials; Specific capacitance; Specific capacitance; Porous materials; Bi2O2.33 microspheres; Energy storage
• ISSN: 0167-577X; 1873-4979
• DOI: 10.1016/j.matlet.2012.09.019

A well-dispersed and orange-like Bi2O2.33 microspheres with a narrow size distribution in the range of 3–5μm used as electrode material of supercapacitor have been prepared for the first time via a facile low-cost strategy. The interior structure of the orange-like Bi2O2.33 microspheres possesses many channels of about 1.01nm, which contribute to promote ion penetration and electron transport in the redox reactions. The Bi2O2.33 electrode reveals high specific capacitance (893Fg−1 at 0.1Ag−1) with long cycle life, suggesting potential application in energy storage. ► The pure phase Bi2O2.33 was prepared by a simple chemistry precipitation method. ► This method can be used for large-scale synthesis of Bi2O2.33. ► The orange-like Bi2O2.33 microspheres have many internal channels. ► The Bi2O2.33 exhibits excellent electrochemical performance for energy storage.