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- W3194729513 abstract "Due to the pseudocapacitive charge storage, transition metal oxides occupy a prominent position as high-energy-density electrode materials for supercapacitors. Environmentally friendly, facile synthesis and earth-abundant precursor materials are highly desirable in the investigation of novel electrodes. We report the synthesis of a binder-free electrode composed of iron oxide (FeOx) nanoparticles supported on radially oriented multi-walled carbon nanofibers (CNF). Characterization studies revealed a homogeneous distribution of nanoparticles composed of α-Fe2O3 (hematite), γ-Fe2O3 (maghemite), and Fe3O4 (magnetite) phases on the CNF scaffold. A high specific pseudocapacitance of 239.2 F g−1 was verified for the iron oxides due to contributions of the reversible solid-state redox reactions involving the Fe(II)/Fe(III) redox couple. Likewise, this work also discusses in detail the charge storage mechanism involving the FeOx species. It is reported a facile synthesis of an electrode material with a pseudocapacitive behaviour, good cyclability, and low equivalent series resistance (e.g., 3.79 mΩ g). As seen, the composite electrode material is promising for the energy storage process in aqueous-based supercapacitors." @default.
- W3194729513 created "2021-08-30" @default.
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- W3194729513 date "2021-10-01" @default.
- W3194729513 modified "2023-10-01" @default.
- W3194729513 title "Pseudocapacitive behaviour of iron oxides supported on carbon nanofibers as a composite electrode material for aqueous-based supercapacitors" @default.
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- W3194729513 doi "https://doi.org/10.1016/j.est.2021.103052" @default.
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