Enhanced Cyclic Performance and Lithium Storage Capacity of SnO2/Graphene Nanoporous Electrodes with Three-Dimensionally Delaminated Flexible Structure

To fabricate nanoporous electrode materials with delaminated structure, the graphene nanosheets in the ethylene glycol solution were reassembled in the presence of rutile SnO2 nanoparticles

Seung-Min Paek; EunJoo Yoo; Itaru Honma

2008

Key concepts

Scholarcy highlights

  • To fabricate nanoporous electrode materials with delaminated structure, the graphene nanosheets in the ethylene glycol solution were reassembled in the presence of rutile SnO2 nanoparticles
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  • The obtained SnO2/GNS exhibits a reversible capacity of 810 mAh/g; its cycling performance is drastically enhanced in comparison with that of the bare SnO2 nanoparticle
  • The dimensional confinement of tin oxide nanoparticles by the surrounding GNS limits the volume expansion upon lithium insertion, and the developed pores between SnO2 and GNS could be used as buffered spaces during charge/discharge, resulting in the superior cyclic performances
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