Abstract
Morphologies and sizes of V2O5 had crucial effect on their optic and catalytic performance. Diverse dimensional V2O5 were successfully synthesized by the combination of a hydrothermal and post heat treatment method. The as-obtained samples were characterized by X-ray power diffraction, scanning electron microscopy, transmission electron microscopy and Raman spectra. Moreover, the optic properties of diverse dimensional V2O5 were examined by Fourier transform imaging spectrometer and UV–vis-spectrophotometer. It showed that the IR transmittance of nanowire (at 1019cm−1 is 85%) and UV absorbance of microflowers (at 480nm) were high. Furthermore, the catalytic properties of diverse dimensional V2O5 on the thermal decomposition of ammonium perchlorate were evaluated and compared by Thermo-Gravimetric Analysis and Differential Scanning Calorimetry. Moreover, the best catalytic performance was obtained with the morphology of nanowire. It showed the thermal decomposition temperatures of AP with nanowire, microflowers and microsphere were reduced to 373°C, 382°C and 376°C (decreased by 52°C, 43°C and 49°C).
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