期刊
ENERGIES
卷 10, 期 9, 页码 -出版社
MDPI
DOI: 10.3390/en10091296
关键词
one-step; self-assembly; alpha-Fe2O3; carbon coating; supercapacitors
资金
- National High Technology Research and Development Program of China (863 Project) [2012A053402]
- National Key Research and Development Program of China [2016YFB0101200]
- National Natural Science Foundation of China [51472187]
A cocoon-like alpha-Fe2O3 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 alpha-Fe2O3@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 alpha-Fe2O3@C could be a promising alternative material for application in high energy density storage.
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