Abstract
The effect of hydrothermal parameters was investigated on the structural, morphological and optical properties of tungsten oxide (WO3) nanostructures synthesized without any additives. Also, the thermal stability of products was studied at 350 °C. The products were characterized by X-ray powder diffraction (XRD), field emission scanning electron microscopy (FESEM), Raman scattering and diffuse reflection spectroscopy (DRS). The results emphasized that the WO3 features depended on the synthesis duration and pH value. The formation of rod-like WO3 nanostructures was verified by FESEM analysis. The crystallite size and bandgap were in the range of 40–89 nm and 2.63–2.94 eV, respectively, that increased with pH enhancement. Although the crystallite size was decreased with hydrothermal duration decrement, the bandgap did not show significant change. Also, the obtained nanorods shortens in length with decreasing synthesis duration. The slight variation caused by calcination makes samples suitable for high temperature applications like gas sensors.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
