One-pot synthesis of 3-D dandelion-like architectures constructed by rutile TiO2 nanorods grown along [001] axis for high-rate lithium ion batteries

Abstract

Novel dandelion-like rutile TiO₂ superstructures are synthesized through a facile one-pot hydrolysis route. The as-prepared structures are composed of inter-aggregated straight nanorods, which are constructed from nanosized rutile TiO₂ (∼6 nm) grown along the [001] direction. The as-derived TiO₂ shows a high reversible lithium storage capacity of 242 mA h g⁻¹ and an excellent rate capability of 116 mA h g⁻¹ at 20 C.