α-Fe2O3/rGO nanospindles as electrode materials for supercapacitors with long cycle life
- School of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110870 (China)
- Promising Centre for Sensors and Electronic Devices (PCSED) and Department of Chemistry, College of Science and Arts, Najran University, Najran, 11001 (Saudi Arabia)
Highlights: • Spindle-like α-Fe{sub 2}O{sub 3} and reduced graphene (rGO) composites have been synthesized by a simple hydrothermal method. • The synthesized samples exhibit excellent electrochemical performance with high specific capacitance. • The ASCs exhibit outstanding capacitance performance with maximum energy density. - Abstract: Spindle-like α-Fe{sub 2}O{sub 3} and reduced graphene (rGO) composites have been synthesized by a simple hydrothermal method. The synthesized samples exhibit excellent electrochemical performance with high specific capacitance and good cycling life of about 87.5% reserved after 10,000 cycles. A solid-state asymmetric supercapacitor (ASC) with 1.5 V Voltage has been assembled using α-Fe{sub 2}O{sub 3}/rGO composite anode and the NiCo{sub 2}O{sub 4} nanowires cathode. The ASCs exhibit outstanding capacitance performance with maximum energy density of 73 Wh kg{sup −1} at the power density of 1357 W kg{sup −1}, and more than 219% capacitance retention after 10,000 cycles.
- OSTI ID:
- 22805308
- Journal Information:
- Materials Research Bulletin, Vol. 107; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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