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Hydrogen Tungsten Bronze 447

Hydrogen tungsten bronze (HxWO3, 0≤x≤1) may be used as a co-catalyst in combination with platinum, thereby reducing the usage amount of platinum (The cost of platinum is high) and increasing the catalytic activity of platinum. Hydrogen tungsten bronze combines with the adsorbed hydrogen which has not been completely dissociated on platinum surface, thus increasing the rate of hydrogen oxidation reaction. At the same time, HxWO3 has the ability to provide protons after accepting a large number of protons. These protons…

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Platinum-hydrogen Tungsten Bronze 358

Platinum-hydrogen tungsten bronze may be applied as catalyzer. The Electroxidation of Methonal on Platinum-hydrogen Tungsten Bronze Direct methanol fuel cells (DMFCs) have been studied extensively due to their low operating temperature (<1008°C) and the fast start-up for applications such as portable and stationary power sources and electric vehicular applications. However, slow kinetics of methanol oxidation is one of problems that retard the practical application of DMFCs. Recently, semi-conductive metal oxides such as WO3, MoO3, and V2O5 were considered as a…

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Tantalum Tungsten Bronze 352

Tantalum tungsten bronze (TaxWO3) may be synthesized via hydrothermal method using TaCl5 and Na2WO4?2H2O as raw materials. The TaxWO3 synthesized at 170°C for 48h is hexagonal with the size of about 10~50nm. And TaxWO3 has a strong electrocatalytic activity for hydrogen evolution reaction. The morphology, crystal structure and optical properties of synthesized products were characterized by means of XRD, TEM, SEM, UV-vis and Raman technologies. In addition, the electrocatalytic activity for hydrogen evolution reaction was also investigated by cyclic voltammetry.…

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Mo-doped Tungsten Trioxide Nanorod 554

Mo-doped tungsten trioxide nanorod may be prepared by hydrothermal method on FTO conductive glass coated with a TiO2 crystal seed layer, which adopts sodium tungstate dihydrate and sodium molybdate dihydrate as main raw materials under different hydrothermal growth conditions (at 180°C, hydrothermal growth time of 5h or 6h). The microstructure, composition and electrochromism performance of the obtained WO3 nanorod at different hydrothermal growth times were studied by means of scanning electron microscope (SEM), energy dispersive spectroscopy (EDS) and X-ray diffraction…

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Tungsten Alloy for Self-winding Watches 294

Tungsten alloy for self-winding watch has excellent properties such as high strength, high hardness, wear resistance, and corrosion resistance. It is the best raw materials for the manufacture of watches. The rudder is an important part of automatic mechanical watches. The automatic mechanical watch is an improvement of the manual mechanical watch. A swaying rudder is added to the watch. When worn, the oscillating weight in the watch is rotated by the wrist to achieve the effect of winding. The…

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Tungsten Alloy Cube for Clock 328

Tungsten alloy cube for clock has high density, high strength, high temperature, corrosion resistance and other advantages, which is non-magnetic and anti-oxidation. It is an important part of the alarm clock vibration device. Characteristic The main production material of tungsten alloy cube for clock is high density tungsten alloy. Tungsten alloy has the advantages of high density, high hardness and non-magnetic properties, which is the best materials of producing the cube for clock. Under the same weight, the weight of…

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Tungsten Alloy Mobile Vibrator 346

Tungsten alloy mobile vibrator has high density and high strength, which is non-magnetic. It is important component in mobile phone vibration devices, and has excellent characteristics such as high temperature resistance, oxidation resistance and corrosion resistance. Characteristic Tungsten alloy mobile vibrator is made of tungsten alloy. Compared with other materials, tungsten alloy has significant advantages in terms of density, hardness, wear resistance and so on. Tungsten alloy has a maximum density of 18.6 g/cm3. The high density can exhibit smaller…

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Tungsten Alloy Extrusion Die 299

Tungsten alloy extrusion die has high temperature resistance and good use characteristics. Even under high temperature condition, it can maintain its high strength. It can be used to process non-ferrous metals and alloy irons as well as pressure casting dies. Characteristic Tungsten alloy extrusion die is made from high density tungsten alloy materials. Tungsten alloy has high temperature resistance, high hardness and strength, which is the best material for producing die castings. Tungsten alloy extrusion die is very rugged and…

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Tungsten Alloy for Oil Logging 312

Tungsten alloy for oil logging is drill bit tooling materials and counterweight materials used in professional drilling projects. It has good mechanical properties, abrasion resistance and corrosion resistance. It is widely used in the petroleum industry. Characteristic The density of tungsten alloy for oil logging is up to 18.6g/cm3, and the hardness is up to 36 HRC, wear resistance. Its impact resistance and durability are better. It is becoming the best counterweight for drilling groundwater, oil and gas equipment. Applications…

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Tungsten Alloy Fitting Part 285

Tungsten alloy fitting part has high density, small volume, good wear resistance and usability. It is widely used in various fields such as industrial fields, military fields, and medical fields. Characteristic Tungsten alloy fitting part made of tungsten alloy has high specific gravity. It is strong and durable, whose size is small and precision. It has good weldability, corrosion resistance and processability. Applications Tungsten alloy fitting part has been widely used in various fields due to its good performance. So…

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