Plasma-assisted synthesis of hydrogenated TiO2 for energy storage and conversion

Titanium dioxide (TiO2) is widely used in the energy storage and conversion area. However, the performance of TiO2 is substantially lower than practically required. This results from its limited solar absorption, low charge transfer rate, and low electrochemical acitivity. In this study, hydrogenated TiO2 (H-TiO2) with distinct physical and chemical properties is controlledly synthesized through a hydrogen (H2) plasma treatment. The obtained material exhibits excellent performance in applications for lithium ion batteries, photocatalysis, and photothermal conversion. Moreover, the microstructure of H-TiO2, and its effect on the application performance of H-TiO2 is comprehensively investigated. It is believed that this research might provide new insights into synthesis, properties, and applications of H-TiO2, which is highly favorable for the development of high-performance and versatile TiO2 materials for energy storage and conversion devices.