Binding SnO2 Nanocrystals in Nitrogen-Doped Graphene Sheets as Anode Materials for Lithium-Ion Batteries 

　　Adv. Mater., 2013, 25, 2152–2157 

　　Abstract: 

　　 

　　  

　　Hybrid anode materials for Li-ion batteries are fabricated by binding SnO₂ nanocrystals (NCs) in nitrogen-doped reduced graphene oxide (N-RGO) sheets by means of an in situ hydrazine monohydrate vapor reduction method. The SnO₂ NCs in the obtained SnO₂NC@N-RGO hybrid material exhibit exceptionally high specific capacity and high rate capability. Bonds formed between graphene and SnO₂ nanocrystals limit the aggregation of in situ formed Sn nanoparticles, leading to a stable hybrid anode material with long cycle life.