Rutile TiO₂ Submicroboxes with Superior Lithium Storage Properties

Abstract

Hollow structures of rutile TiO2 , and especially with non-spherical shape, have rarely been reported. Herein, high-quality rutile TiO2 submicroboxes have been synthesized by a facile templating method using Fe2 O3 submicrocubes as removable templates. Compared to other rutile TiO2 nanomaterials, the as-prepared rutile TiO2 submicroboxes manifest superior lithium storage properties in terms of high specific capacity, long-term cycling stability, and excellent rate capability.

Anatase TiO2 nanoparticles for lithium-ion batteries

“…The best results have been obtained with special morphologies that avoid this irregular aggregation: one example is hollow nanostructures composed of nanosized primary building blocks [74]. The shell of the hollow structure was constructed by nanoparticles with size of about 10-20 nm comparable to that of the particles in the present work.…”

Fast synthesis of uniform mesoporous titania submicrospheres with high tap densities for high-volumetric performance Li-ion batteries

“…The tap density of the UMTSs is as high as 1.62 g cm −3 , which is far higher than that of meso-TiO2 (0.714 g cm −3 ) [4], TiO2 submicroboxes (0.44 g cm −3 ) [12], TiO2(B) (0.67 g cm −3 ) [13], and commercial TiO2 (0.54 g cm −3 ) (Fig. 3e).…”

“…3c) reveal a type-IV isotherm with a type-H3 hysteresis loop at the Chart of the tap density of the UMTSs, meso-TiO2 [4], TiO2(B) [13], TiO2 submicroboxes [12], and commercial TiO2 (e).…”

“…However, the tap density of TiO2 materials is low. For example, Yu et al [12] reported rutile TiO2 submicroboxes with superior Li-storage performance but a TiO2 tap density of only 0.44 g cm −3 . The tap density of TiO2-(B) was improved by using large starting materials [13], but the value was only 0.67 g cm −3 .…”

Engineering oxygen vacancy on rutile TiO2 for efficient electron-hole separation and high solar-driven photocatalytic hydrogen evolution

“…It is well-known that TiO 2 has three different crystal phases, anatase, brookite and rutile [15]. Notably, the rutile TiO 2 has attracted great research interest due to the fact that it is the most stable phase in thermodynamics, compared to the other two crystalline phases [16][17][18]. Rutile TiO 2 is suitable for photocatalytic water splitting due to its appropriate band energy position.…”