Open AccessNanostructured Tungsten Trioxide (WO3): synthesis, structural and morphological investigations
Author(s) -
Rhizlane Hatel,
Mimouna Baïtoul
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1292/1/012014
Subject(s) - tungsten trioxide , materials science , monoclinic crystal system , tungsten , fourier transform infrared spectroscopy , scanning electron microscope , chemical engineering , nanostructure , annealing (glass) , tungsten carbide , nanotechnology , crystallography , crystal structure , chemistry , composite material , metallurgy , engineering
Tungsten trioxide (WO 3 ) has attracted considerable attention due to its promising and remarkable properties. In this study, we have prepared WO 3 nanostructures via a simple chemical method using tungsten carbide (WC) as a precursor. This novel approach has many advantages such as high yields, simple methodology and easy work up. The X-ray diffraction (XRD) pattern initially revealed the formation of the intermediate phase of tungsten trioxide hydrate (WO 3 .H 2 O), then the complete transformation to pure WO 3 after annealing at 600°C for 5h in air atmosphere. The prepared WO 3 nanostructures crystallized into a monoclinic phase. The Scanning electron microscopy (SEM) image indicates the exceptional porous morphology, which consisted of hollow sphere-like shape with a uniform distribution. Fourier transform infrared (FTIR) spectroscopy confirmed the structural composition and the purity of the formed WO 3 . The experimental results proved that our simple approach offers a promising route to prepare WO 3 nanostructures as high performance material for advanced applications.