One-Step Self-Assembly Synthesis ?-Fe 2 O 3 with Carbon-Coated Nanoparticles for Stabilized and Enhanced Supercapacitors Electrode

Yizhi Yan, Haolin Tang, Fan Wu, Rui Wang and Mu Pan
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Yizhi Yan: State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, China
Haolin Tang: State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, China
Fan Wu: State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, China
Rui Wang: State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, China
Mu Pan: State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, Hubei, China

Energies, 2017, vol. 10, issue 9, 1-13

Abstract: A cocoon-like ?-Fe 2 O 3 nanocomposite with a novel carbon-coated structure was synthesized via a simple one-step hydrothermal self-assembly method and employed as supercapacitor electrode material. It was observed from electrochemical measurements that the obtained ?-Fe 2 O 3 @C electrode showed a good specific capacitance (406.9 Fg ?1 at 0.5 Ag ?1 ) and excellent cycling stability, with 90.7% specific capacitance retained after 2000 cycles at high current density of 10 Ag ?1 . These impressive results, presented here, demonstrated that ?-Fe 2 O 3 @C could be a promising alternative material for application in high energy density storage.

Keywords: one-step; self-assembly; ?-Fe 2 O 3; carbon coating; supercapacitors (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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