石墨烯
超级电容器
纳米复合材料
材料科学
电极
氧化物
纳米线
纳米技术
光电子学
电容
化学
冶金
物理化学
作者
Debabrata Moitra,Chayan Anand,B. Ghosh,Madhurya Chandel,Narendra Nath Ghosh
出处
期刊:ACS applied energy materials
[American Chemical Society]
日期:2018-02-08
卷期号:1 (2): 464-474
被引量:104
标识
DOI:10.1021/acsaem.7b00097
摘要
In this work, we have reported a nanocomposite, composed of a BiFeO3 nanowire and reduced graphene oxide (BFO-RGO), as an electrode material for a high-performance supercapacitor. A facile hydrothermal method was employed to prepare BFO-RGO nanocomposite. The electrochemical measurements were performed by cyclic voltammetry, galvanostatic charge/discharge measurements, and electrochemical impedance spectroscopy. The specific capacitance of the BFO-RGO nanocomposite was 928.43 F g–1 at current density 5 A g–1, which is superior to that of pure BiFeO3. Additionally, this nanocomposite shows good cyclic stability, and ∼87.51% of specific capacitance is retained up to 1000 cycles. It also exhibits a high charge density of 18.62 W h kg–1 when the power density is 950 W kg–1. These attractive results suggest the potential of BiFeO3 nanowire-RGO nanocomposite as an active material for the construction of a high-performance supercapacitor electrode. To the best of our knowledge, this is the first time the applica...
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