Molybdenum-Based Sodium Ion Batteries Development

sodium ion batteries are coming image

A recent study carried out by Yu Jiang et al at Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou, China has investigated the Molybdenum-based materials for sodium ion batteries (SIBs). SIBs are considered to be one of the most promising candidates for energy storage required for renewable energy sources. The main difficulty is finding a suitable anode material, and molybdenum-based materials are expected to solve this problem.

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Electron Flow Versus Magnetic Flux in Monolayer Molybdenum Disulfide Quantum Dot

Molybdenum disulfide quantum dots image

Researchers from Morocco have investigated the Dirac electron scattering problem in quantum dots of monolayer molybdenum disulfide (MoS2) quantum dots subject to magnetic flux. Analytical expressions for the eigenstates, scattering coefficients, scattering efficiency, and radial component of the reflected electron flow were developed by solving the Dirac equation.

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Molybdenum Doped Bilayer Photoanode Nanotubes Enhance Photoelectrochemical Water Splitting

the theory of the photoelectrochemical image

Researchers from the University of Pittsburgh recently enhanced the photoelectrochemical (PEC) water splitting capability of bilayer photoanode nanotubes through simple but effective molybdenum (Mo) doping method.

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Growth of Crystalline WO3-ZnSe Nanocomposites

Growth of crystalline WO3-ZnSe nanocomposite image

In a study led by researchers at the School of Chemical Studies, Jiwaji University, India, novel growth of WO3-ZnSe nanocomposites was performed under subcritical conditions by a simple, low-cost hydrothermal process, and the first characterization of the products-completed in just 5 hours is reported: X-ray diffraction, scanning electron microscopy (SEM), optical studies and Fourier transform analysis.

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Researchers Create New Tungsten Substitute Catalyst for Vanadium Oxide

tungsten-substituted vanadium oxide for low-temperature working image

Researchers from Tokyo Metropolitan University have created a new tungsten (W) substituted vanadium oxide catalyst for breaking down harmful nitrogen oxides in industrial exhaust gases. Their new material is able to operate at lower temperatures and does not exhibit a significant degradation in performance when treating "wet" exhaust gases, addressing a major drawback of conventional vanadium oxide catalysts. The researchers also found that the non-aggregated dispersion of atomic tungsten in the original crystal structure plays a key role in its function.

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Ultrasound-Assisted Tungstate Catalyst for Oxidation of Alcohols to Aldehydes

Ultrasound-assisted tungstate catalyst for oxidation of alcohols to aldehydes image

The application of ultrasound (US) as a green activation method for the chemical conversion of tungstate catalyst to oxidize alcohols to aldehydes has attracted chemists’ interest.

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Sensitivity and Selectivity Effects of Tungsten Oxide Nanostructures on Pollution Gases

sensitivity and selectivity effects of tungsten oxide nanostructures on pollution gases image

Recently, researchers from Jiujiang University and the University of Puerto Rico, USA, conducted a study on the sensitivity and selective effect of tungsten oxide nanostructures on pollution gases. The study titled “Effect of Tungsten Oxide Nanostructures on Sensitivity and Selectivity of Pollution Gases” has been published in the journal Sensors on 26 Aug. 2020. The study was carried out by Fenghui et al.

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Oxidation and Reduction of Tungsten and Its Oxides

beautiful colours of tungsten oxides image

Tungsten (W) is mainly in the W+6 oxidation state in most W oxides, with six oxygen atoms surrounding each W atom in an octahedral configuration. In oxidized tungsten (WO3), these octahedra are arranged in a split-angle configuration. In reduced oxides (WOj, 2 < x < 3), complex combinations of WO6 octahedra in split-angle, split-edge, and split-face arrangements are frequently found. The WO4 tetrahedra and WO7 pentagonal dihedra, which are frequently found in fully oxidized and partially reduced compounds, respectively, add to the complexity of the crystal geography of these compounds.

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Six Applications of Molybdenum

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Molybdenum (Mo) is a refractory metal with a melting point of 2620°C. It hosts a small coefficient of expansion, high electrical conductivity, and good thermal conductivity. It does not react with hydrochloric acid, hydrofluoric acid, and alkaline solutions at room temperature, and is only soluble in nitric acid, aqua regia, or concentrated sulfuric acid. Therefore, Mo and its alloys have a wide range of applications and good prospects. In this article, we will describe 6 uses of Mo.

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Pulmonary Toxicity, Genotoxicity and Carcinogenicity Evaluation of Molybdenum, Lithium, and Tungsten

ammunition contains tungsten image

Recently, researchers from the Danish National Research Centre for the Working Environment clarified the doses of molybdenum (Mo), lithium, and tungsten (W) for inhalation toxicity and evaluated the genotoxicity and carcinogenic potential of these three elements.

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