In the last few decades, there has been a surge of interest in using tungsten oxide thin films as an active layer of electrochromic device. These devices have several practical applications such as smart window of buildings and automobile glazing for energy saving. The main objective of this wor...

Multi-principal component materials (MPCMs) are currently being investigated for use in high and ultra-high temperature environments. The design of oxidation resistant multi-component materials requires as input the oxidation behavior of each of the components. FactSage free energy minimization ...

Tungsten oxide thin films are grown by DC reactive magnetron sputtering combining glancing angle deposition (GLAD) and reactive gas pulsing process (RGPP). Inclined, zigzag and spiral columnar architectures are produced with various oxygen injections during the growth. The dodecane and ozone sen...

Rhodamine B (RhB) removal in a tungsten species-catalyzed Fenton-like system using nanoscale zero valent tungsten (nZVW) was investigated. The nZVW system can effective remove RhB in oxygenated water, and the nZVW/H2O2 system significantly enhances the RhB removal. Mechanism investigation shows ...

A simple and eco-friendly approach for green oxidation of aldehydes has been proposed, which employed highly efficient heterogeneous catalysts tungsten-doped modified silica SBA-15 (W-SBA-15) as catalysts and H2O2 as a green oxidant. W-SBA-15 were synthesized by immobilizing tungsten species on ...

Nanocrystalline tungsten oxide with variable particle size and surface area was synthesized by aqueous deposition and heat treatment for use in resistive gas sensors. Surface modification with 1 wt.% Pd and Ru was performed by impregnation to improve the sensitivity to CO and ammonia. Acid and o...

Tungsten oxide bronze-based materials show extremely adaptive structural and compositional features that make them suitable for functional properties modulation. Herein we report the preparation of a series of Ti-containing tungsten oxide catalysts presenting a hexagonal tungsten bronze-type str...

Tungsten is an emerging contaminant because of its potential toxicity to humans. However, tungsten-plant-microbe interactions remains unknown. The objective of the study was to evaluate the effect of tungsten-resistant bacteria on tungsten species in plants and microbial community structure in s...

A facile synthesis strategy is developed for synthesizing nanohybrids of reduced graphene oxide/tungsten disulfide/tungsten oxide (G/TS/TO). The as-prepared nanohybrids can effectively combine the electrical double-layer capacitance and pseudo-capacitance when used as the working electrode of su...

Vanadium (V) compounds are reported to have insulin mimicking action, which render them to show excellent osteogenic activity. In the current study we investigated the effect of various vanadium compounds on osteoblast differentiation of mouse mesenchymal stem cells, C3H10t1/2 cells, and analyze...

A novel investigation into the utilization of vanadium oxide (V2O3) as a persulfate (PS) activator in phenanthrene degradation in an aqueous system, and its subsequent pathway, was undertaken. The V2O3/PS has a high thermal degradation activity for phenanthrene at either room temperature (25 °C...

Oral bioaccessibility of vanadium(IV) and vanadium(V) in soil, dust and concentrate fines from a vanadium titanomagnetite mining region was assessed by a whole digestive system in-vitro scheme. The scheme including the addition of sweat and the large intestinal digestion was used to estimate the...

A convenient new synthesis for complexes of VOF2 with N-donor ligands is via the reaction of VF4 with the ligand in water, either under reflux or using hydrothermal conditions. The complexes, mer-[VOF2(terpy)]·3H2O (terpy = 2,2′6′,2‴-terpyridyl), [VOF2(bipy)(H2O)], [VOF2(phen)(H2O)], [VOF2(py...

Batch experiments were performed to derive the rate laws for the proton-promoted dissolution of the main vanadium (III, IV and V) oxides at pH 3.1–10.0. The release rates of vanadium are closely related to the aqueous pH, and several obvious differences were observed in the release behavior of ...

We report the reduction of pertechnetate (Tc(VII)O4−) to Tc(IV) species by bremsstrahlung irradiation of an aqueous solution of TcO4− at different pHs of the solution. When the TcO4− solution at pH 1.8 acidified with sulfuric acid was irradiated, soluble Tc(IV) species, which was proposed as pol...

TAO2 is a mitogen-activated protein kinase kinase kinase (MAP3K) that doubly phosphorylates and activates the MAP kinase kinases (MAP2Ks) MEK3 and MEK6. The structure of the kinase domain of TAO2 (1-320) has been solved in its phosphorylated active conformation. The structure, together with stru...

The electro-catalyzed oxidation of histamine on heterogeneous carbon (carbon paste and screen-printed carbon) electrodes modified with rhenium (IV) oxide was investigated for the purpose of its flow-injection amperometric determination with a detection potential of −100 mV. Histamine was oxidize...

Solid solutions Pr3(Ru1-xTax)O7 (0≤x≤1.0) and (Pr1-xYx)3RuO7 (0≤x≤0.7) were obtained as a single phase compound. They crystallize in an orthorhombic superstructure derived from that of the cubic fluorite with space group Cmcm. The results of the Rietveld analysis for X-ray diffraction profil...

The key problems in developing catalytic membranes for producing syngas from biofuels by selective oxidation with oxygen separated from air are design of materials for functional layers and optimization of techniques of their deposition. Nanocomposite materials based upon praseodymium nickelate-...

Praseodymium 4-hydroxycinnamate (Pr(4OHCin)3) was investigated as a novel corrosion inhibitor for steel in NaCl solutions, and found to be effective at inhibiting corrosion in both CO2-containing and naturally-aerated systems. Surface analysis results suggest that the corrosion inhibition abilit...