Shock wave induced anatase to rutile TiO_2 phase transition using pressure driven shock tube

摘要

Pressure driven shock tube was employed to switch TiO2 nanoparticles from anatase to rutile phase at an applied pressure of about 2.683 MPa. The crystal structure and surface morphology of the anatase-rutile phase transformation are investigated for pre and post loaded shock using X-ray diffraction, FT-Raman spectroscopy and transmission electron microscopy respectively. The results from the experimental investigations elucidated that the TiO2 nanoparticles under post shock facilitated the formation of new crystallographic phase (rutile) from anatase phase. (C) 2018 Elsevier B.V. All rights reserved.