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2D Sandwich‐like Sheets of Iron Oxide Grown on Graphene as High Energy Anode Material for Supercapacitors
Author(s) -
Qu Qunting,
Yang Shubin,
Feng Xinliang
Publication year - 2011
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201103042
Subject(s) - materials science , graphene , supercapacitor , nanorod , anode , oxide , nanocomposite , capacitance , electrochemistry , iron oxide , chemical engineering , graphene oxide paper , nanotechnology , metallurgy , electrode , chemistry , engineering
2D sandwich‐like sheets of iron oxide grown on graphene as high energy anode material for supercapacitors are prepared from the direct growth of FeOOH nanorods on the surface of graphene and the subsequent electrochemical transformation of FeOOH to Fe 3 O 4 . The Fe 3 O 4 @RGO nanocomposites exhibit superior capacitance (326 F g −1 ), high energy density (85 Wh kg −1 ), large power, and good cycling performance in 1 mol L −1 LiOH solution.