Versatile Synthesis of Mesoporous Crystalline TiO 2 Materials by Monomicelle Assembly.

Mesoscale TiO 2 structures have realized many technological applications-ranging from catalysis and biomedicine to energy storage and conversion-because of their large mesoporosities offering desirable accessibility and mass transport. Tailoring mesoporous TiO 2 structures with novel mesoscopic and microscopic configurations is envisaged to offer ample opportunities for further applications. In this Review, we explain how to synthesize novel mesoporous TiO 2 materials and present recent examples. An emphasis is placed on a "monomicelle assembly" strategy as an emerging and powerful approach to direct the formation of mesostructured TiO 2 with precise control over its structural orientations and architectures. Furthermore, typical examples of mesoporous TiO 2 for applications in batteries and photocatalysis are highlighted. The Review ends with an outlook towards the synthesis of mesoporous TiO 2 with tailored architectures by self-assembly, which could pave the way for developing advanced energy conversion and storage devices.