A Simple Route for the Synthesis of Monocrystalline Rutile TiO2 Nanorods
A new methodology was developed to synthesize uniform rutile TiO2 nanorods. Rutile (TiO2) nanorods of length L200-300nm and diameter D15-20nm have been synthesized through a seed-mediated growth process by the additional thermohydrolysis of SnCl4 in concentrated acid aqueous solutions. The XRD show that the additional SnCl4 can accelerate the crystallization of the rutile due to the SnO2 acted as the nuclear, avoiding the slow processing of self-nucleation of the rutile TiO2. The HRTEM suggest that the crystal growth is preferential in the [11 direction resulting the formation of rod-like nanocrystals.
Y. Q. Yang et al., "A Simple Route for the Synthesis of Monocrystalline Rutile TiO2 Nanorods", Advanced Materials Research, Vol. 721, pp. 206-209, 2013