화학공학소재연구정보센터
Applied Surface Science, Vol.369, 314-319, 2016
Cumulative effect of Fe2O3 on TiO2 nanotubes via atomic layer deposition with enhanced lithium ion storage performance
Fe2O3 coated TiO2 nanotube (Fe2O3@TiO2 nanotube) composites anodes for lithium-ion batteries (LIBs) have been prepared by hydrothermal and atomic layer deposition (ALD) method. The composites anodes show a reversible capacity of 450 mAh g(-1) after 150 cycles at the current density of 200 mA g(-1), which is approximately two times of pure TiO2 nanotubes. Even at a high current density of 3200 mA g(-1), the composite anodes still exhibit a good capacity of 198 mAh g(-1), more than three times higher than that of pure TiO2 nanotubes. The good reversible capacity and rete capability of composite anodes indicate the cumulative effect of Fe2O3 on TiO2 nanotube by the integration of structural stability of TiO2 and high theoretical capacity of Fe2O3. (C) 2016 Elsevier B.V. All rights reserved.