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A new structured hollow carbon spheres with an open pore (HCSO) were synthesized by introducing a pore-forming agent PEG. Unlike the conventional hollow particles, the void space is fully utilized due to the presence of the open pore. As a proof-of-concept, MnO2 nanosheets are in-situ grown on both the outer shell and the inner cavity of HCSO forming sandwich structure via a facile redox method, named...
Reduced graphene oxide was firstly introduced to synthesize MnO/rGO nanocomposite by a facile pyrolysis method. MnO nanoparticles with an average size of about 30nm were uniformly decorated on the rGO matrix. Note that the mass content of rGO in the composite is only ∼6%. The MnO/rGO composite exhibited superior rate capability and improved cycling stability due to the high conductivity and two dimension...
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