| 초록 |
Well-trapped vanadium oxide (V2O5)/reduced graphene oxide (rGO) composite was synthesized by solution mixing process combined with ice-templating method. The physical properties and morphologies were investigated by several techniques such as XRD, XPS, Raman, BET, SEM, and TEM. The results indicated that V2O5 nanoparticles were trapped on rGO nanosheets while crystal structure and chemical composition were maintained. For lithium ion battery application, the initial discharge capacity of V2O5/rGO composite at 100 mA g-1 was 273 mAh g-1 and the rate capability was 51%. V2O5/rGO composite showed greater performance compared to pristine V2O5 due to superior electrical conductivity, high surface area, fast ion diffusion and structural stability provided by conductive rGO. Our work may open up new method and material design for the promising future electrochemical application. |
