the National Natural Science Foundation of China(21403305);"Fundamental Research Funds for the CentralUniversities", South-Central University for Nationalities, China(CZQ14007)
College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan 430074, P. R. China
Abstract:
Metal oxides are promising high-capacity anode materials for lithium and sodium-ion batteries because of the reversible multi-electron structural conversion reactions with lithium and sodium ions. In this study, Fe2O3/rGO (reduced graphene oxide) nanocomposites were prepared using graphene oxide sheets and ferric salt as precursors through a one-step solvothermal method. The experimental results demonstrated that the Fe2O3 nanocrystals were uniformly dispersed on the surface of reduced graphene oxide sheets. The nanocomposite anodes show superior charge-discharge performances and cyclability in lithium and sodium ion batteries, indicating that reduced graphene oxide sheets can reduce the charge-transfer resistance and stabilize the structure change during cycling. It suggests a potential feasibility to use these metal oxide nanocomposites as high capacity anode materials for lithium and sodium ion batteries.
