This study focuses on enhancing the electrical and thermoelectric properties of tungsten trioxide (WO3) thin films using spray pyrolysis technique. Three samples, namely A1, A2, A3, were prepared by depositing onto glass substrates at different deposition rates: R1 = 1 mL/min, R2 3 R3 7 respectively. Subsequently, underwent annealing 500 °C for 2 hours in air. A detailed investigation was condu...

Artificial photosynthesis is a very attractive and a desirable way to solve the rising energy demand. In order to harvest energy directly from sunlight catalyst for oxygen reduction and evolution reaction are at the core of key renewable-energy technologies including fuel cells and water splitting. Herein, tungsten oxide-reduced graphene oxide (WO3-rGO), cobalt oxidereduced graphene oxide (Co3O...

Lattice parameter data from the literature have been used to provide a complete description of spontaneous strain variations across each six known phase transitions [Formula: see text] in temperature interval 5–1273 K. Analysis strain/order coupling reveals character transition, unified full range, relationship between and electronic effects, new insights into gradients likely be present differ...

The purpose of this study is to conduct a thorough examination the direct and indirect impacts increasing quantity heavy WO3 on gamma-ray transmission, shielding mechanical properties for some selected barium-phosphate-tungsten glasses. Accordingly, oxides with chemical formula (50-x)P2O5-50BaO-xWO3 (x = 0.0(S1), 5.0(S2), 10(S3), 15(S4)) mol% was evaluated using Makishima-Mackenzie model. Next,...

All-solid-state electrochromic devices can be used to create smart windows that regulate the transmittance of solar radiation by applying a voltage. However, suffer from limited ion diffusion speed, which leads slow colouration and bleaching processes. Here we report fast-switching are based on an all-solid-state tandem structure use protons as diffusing species. We tungsten trioxide (WO3) mate...

Article history: Received 9 November 2015 Accepted 25 April 2016 Available online 27 April 2016 Nanostructured WC powders can provide technologically attractive properties due to the fine microstructures obtained after sintering. Either W or WO3 powders are used for the industrial production of WC. In both cases, the contact area between carbon and tungsten precursors has a critical influence o...

Photoluminescence measurements showed that needle-like tungsten oxide nanostructures synthesized at 590°C to 750°C by the thermal evaporation of WO3 nanopowders without the use of a catalyst had an intense near-ultraviolet (NUV) emission band that was different from that of the tungsten oxide nanostructures obtained in other temperature ranges. The intense NUV emission might be due to the local...

In the present study, the possibility of concentrating tungsten-copper vein ore in South Chah-Palang was examined using gravity separators including Jig Machine (-2360+600 μm), shaking table (-600+120 μm), and multi-gravity separator (MGS) (-120 μm). The representative sample contains 1.5% WO3 and 5.95% CuO. The main tungsten minerals were ferberite and wolframite and their appropriate liberati...

Tungsten trioxide thin films were deposited on silicon substrates by non-reactive RF sputtering from a WO3 target at room temperature. The post-annealed two different temperatures, 400 °C and 500 °C. morphological microstructural properties of these analyzed using atomic force microscopy X-ray diffraction. diffraction patterns only show oxide phases. AFM images morphologies with smaller grains ...