Synthesis of nanorods assembled V‐doped WO3 microspheres and the catalytic performance in thermal decomposition of ammonium perchlorate

Abstract

AbstractV‐doped WO3 microspheres composed of nanorods radially grown from the center were fabricated via a simple hydrothermal method. The as‐obtained products were characterized by several techniques such as X‐ray powder diffraction (XRD), energy dispersive spectrometer (EDS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), Raman spectrum, and Brunauer–Emmett–Teller (BET). It was found that V atoms were incorporated inside the hexagonal WO3 lattice. On the basis of time‐dependent experiments, the formation mechanism for the as‐prepared V‐doped WO3 micro‐nanostructures was discussed. In addition, the catalytic properties of the synthesized material on the thermal decomposition of ammonium perchlorate (AP) were evaluated by thermal gravimetric and differential thermal analysis (TG/DTA), which showed the thermal decomposition temperatures of AP in the presence of 1, 2, and 4 wt% of V‐doped WO3 micro‐nanostructures were reduced to 399, 393, and 380°C, respectively.