Low-temperature solution-processable vanadium oxide (V₂Ox) thin films have been employed as hole extraction layers (HELs) in polymer bulk heterojunction solar cells. V₂Ox films were fabricated in air by spin-coating vanadium(V) oxytriisopropoxide (s-V₂Ox) at room temperature without the need for further thermal annealing. The deposited vanadium(V) oxytriisopropoxide film undergoes hydrolysis in...

In this research, nano materials with tubular structures are added to SAE 20W50 engine oil to study the rate of their effects on the properties of engine oil. Multi-walled carbon nanotubes (MWCNTs) and vanadium oxide nanotubes (VONTs) has been used as two different additive materials, one of them is carbonic and the other is metallic oxides and their effect on  different parameters contain...

Article history: Received on: 14/08/2015 Revised on: 19/09/2015 Accepted on: 30/09/2015 Available online: 12/11/2015 Objectives: This study aimed to evaluate a new simple colorimetric method for the assay of endothelial nitric oxide synthase activity in clinical researches and to compare between the role of vanadium chloride and nitrate reductase enzyme in the assay method. Methods and material...

New forms of vanadium oxide Nanoporous were fabricated using a simple chemical synthesis method. Vanadium pentoxide (V2O5) Nanoporous were synthesized by sodium metavanadate as precursor and ethylene glycol as surfactant. The samples were characterized by high resolution transmission electron microscopy (HRTEM), field effect scanning electron microscopy (FESEM) and X-ray diffraction (XRD), Four...

Abstract Mn-WO 3 /TiO 2 catalysts were investigated for Selective Catalytic Reduction (SCR) of NO with NH . The synthesized by wetness impregnation method different Mn loadings (1.5-3-12 wt%) on 8wt%WO All three compared and bare MnO x oxide, used as references. 1.5wt%Mn-8wt%WO exhibited the highest performance in conversion N selectivity. A commercial catalyst, based titania supported vanadia ...

Abstract The effect of chemical substances is reported on the structure, surface morphology, and material properties vanadium oxide thin films. study concentrated effects initial materials (e.g., NH 4 VO 3 , NaVO 2 vanadyl acetylacetonate, ammonium decavanadate) various additives acids, chelate ligand, reduction reagent, tensides). syntheses are based sol-gel chemistry. important aim technique ...

Although the rechargeable lithium-sulfur battery is an advanced energy storage system, its practical implementation has been impeded by many issues, in particular the shuttle effect causing rapid capacity fade and low Coulombic efficiency. Herein, we report a conductive porous vanadium nitride nanoribbon/graphene composite accommodating the catholyte as the cathode of a lithium-sulfur battery. ...

Exposure to excessive vanadium occurs in some occupations and with consumption of some dietary regimens for weight reduction and body building. Because vanadium is vasoactive, individuals exposed to excessive vanadium may develop adverse vascular effects. We have previously shown that vanadyl sulfate causes acute pulmonary vasoconstriction, which could be attributed in part to inhibition of nit...

Vanadium–oxygen materials are of interest for various applications and fields solid-state physics owing to the unequaled plethora different phases. The wealth phases complexity its phase diagram infer a strong sensitivity on growth parameters each phase. Thus, reproducible vanadium-oxide thin-films defined by nonequilibrium techniques is challenging. Here, it shown that ion-beam sputter-deposit...

Electrochromic switching devices have elicited considerable attention because these thin films are among the most promising materials for energy-saving applications. The vanadium oxide system is simple and inexpensive because only a single-layer film of this material is sufficient for coloration. Vanadium dioxide thin films are fabricated by electrochemical deposition and cyclic voltammetry. Ch...