Preparation of bismuth ferrite as photo-supercapacitive electrode

2019 2nd International Conference on Composite Materials Science and Technology

Haromae, H.^1^3 ; Pattananuwat, P.^1^2^3

Department of Materials Science, Faculty of Science, Chulalongkorn University, Bangkok

10330, Thailand^1

Research Unit of Advanced Materials for Energy Storage, Chulalongkorn University, Bangkok

10330, Thailand^2

Center of Excellence on Petrochemical and Materials Technology, Chulalongkorn University, Bangkok

10330, Thailand^3

关键词: Bismuth ferrites;    Capacitive behavior;    Dark conditions;    Electrodeposition technique;    Equivalent ratios;    Morphology development;    Specific capacitance;    Thin film layers;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/600/1/012005/pdf
DOI  :  10.1088/1757-899X/600/1/012005

来源: IOP

【 摘 要 】

In this work, we report a novel concept of photo-assisted charging supercapacitive electrode of bismuth ferrite (BFO). The thin film layer of bismuth ferrite electrode is synthesized by electrodeposition technique. The effect of bismuth (III) nitrate/iron (III) nitrate ratio on the capacitive behavior of BFO electrode is investigated. FE-SEM demonstrates the morphology development of flake nanostructure of BFO at the equivalent ratio. The photo-supercapacitive electrode can deliver the highest specific capacitance of 220.50 F g-1 at 10 mV sec-1 under LED light irradiation which is higher than that obtained from dark conditions. This photo active layer can integrate function with the capacitive layer inducing photo-charging mechanism, thus it has great potential of this material electrode for photo-assisted charging supercapacitors application.