Facile synthesis of TiO2 nanoplates decorated with Ag nanoparticles for electro-oxidation of hydrazine

TiO2 nanoplates decorated with Ag nanoparticles have been synthesized by a facile method. The as-prepared Ag/TiO2 nanoplates have been characterized using transmission electron microscopy and X-ray diffraction. Transmission electron microscopy results show that TiO2 nanoplates have a uniform side length of about 40 nm and mono-dispersed morphology, which implies that TiO2 nanoplates may be pomising supports. Ag nanoparticles with diameter ranging from 10 to 20 nm can be observed to disperse homogeneously on the surface of TiO2 nanoplates. The electro-oxidation of Ag/TiO2 nanoplates for hydrazine oxidation has been investigated in detail. The results show that Ag/TiO2 nanoplates have excellent electrocatalytic activity. The electro-oxidation of hydrazine may be an irreversible process being controlled by diffusion of hydrazine.