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Abstract Hierarchical urchin-like Fe 3 O 4 porous particles with 3D graphene modification (U-Fe 3 O 4 @RGO) are synthesized via cationic surfactant induced self-assembly of γ-FeOOH particles and graphene… Click to show full abstract
Abstract Hierarchical urchin-like Fe 3 O 4 porous particles with 3D graphene modification (U-Fe 3 O 4 @RGO) are synthesized via cationic surfactant induced self-assembly of γ-FeOOH particles and graphene oxide (GO) sheets, followed by a calcination treatment. Fe 3 O 4 porous particles are tightly encapsulated by 3D graphene frameworks, which greatly improves the overall electrical conductivity and structural stability of the hybrids. With the help of synergistic effects between U-Fe 3 O 4 and graphene frameworks, U-Fe 3 O 4 @RGO anode demonstrates high reversible capacity, excellent cycling stability (2292 mA h g −1 specific capacity after 500 cycles at 0.5 A g −1 ) and outstanding rate capability (439 mA h g −1 specific capacity at 10 A g −1 ).
Journal Title: Chemical Engineering Journal
Year Published: 2017
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