Study on the Strengthening Mechanism of Zr4+ on Tio2/G Conductive Network

Abstract

The use of conductive coatings can significantly reduce the risk of fires and explosions caused by static electricity. However, TiO2, used as the main component of the coating product, has poor conductivity and needs to be modified before applying in conductive coatings. Consequently, using TiO2/ graphene composite (TG) as matrix and modified by introducing Zr4+, the resistivity of TG decreased from 0.319 Ω·cm (TG) to 0.179 Ω·cm (Zr-TG), and the electrical conductivity increased by 42%. Zr4+ doped into the TiO2 lattice, on the basis of reducing the grain size and increasing the carrier concentration, because of the role of connecting TiO2 and graphene, it has a repair effect on the structure of graphene, and improves the surface carrier transfer ability of graphene. This work provides new insights into the design of novel conductive coatings and graphene composites.

Keywords: TiO2, graphene, Zr4+ doping, electrical conductivity.