One-Dimensional BiFeO3 Nanowire-Reduced Graphene Oxide Nanocomposite as Excellent Supercapacitor Electrode Material
Autor: | Debabrata Moitra, Barun Kumar Ghosh, Madhurya Chandel, Chayan Anand, Narendra Nath Ghosh |
---|---|
Rok vydání: | 2018 |
Předmět: |
Supercapacitor
Materials science Nanocomposite Graphene Nanowire Energy Engineering and Power Technology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Capacitance 0104 chemical sciences law.invention Dielectric spectroscopy Chemical engineering law Electrode Materials Chemistry Electrochemistry Chemical Engineering (miscellaneous) Electrical and Electronic Engineering Cyclic voltammetry 0210 nano-technology |
Zdroj: | ACS Applied Energy Materials. 1:464-474 |
ISSN: | 2574-0962 |
DOI: | 10.1021/acsaem.7b00097 |
Popis: | 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... |
Databáze: | OpenAIRE |
Externí odkaz: |