Tungsten Disulfide-Carbon Nanocomposites with Thousand-layer Rock Structure

tungsten disulfide-carbon nanocomposites image

Tungsten disulfide (WS2) is considered to be a promising anode material for lithium ion batteries. It is not only cheap and safe, but also has a unique two-dimensional layered structure. The weak van der Waals force links the layers, which is conducive to the rapid diffusion of lithium ions in active materials.

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Direct Growth of Tungsten Trioxide Thin Films on Tungsten Sheets

tungsten trioxide thin films image

Tungsten trioxide, as a catalytic material for hydrogen production from water decomposition, has the advantages of photoelectric double response effect, stability, low light-on voltage, high hydrogen production efficiency, and is also a good electrochromic material.

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Tantalum Doped Six Square Tungsten Oxide Nanomaterials

tantalum doped six square tungsten oxide nanomaterials image

90 Sr is an important heat-releasing nuclide in fragment solution. Separation of 90 Sr from fragment acidic solution can greatly reduce the cost of subsequent treatment of radioactive waste liquor. However, the separation of 90 Sr from fragment acidic solution is a very challenging task.

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Ultrafine Tungsten Carbide Powder Preparation by Direct Carbonization Reduction

ultrafine tungsten carbide powder preparation image

Ultra-fine cemented carbide made of ultra-fine tungsten carbide powder has high strength and high hardness, which effectively solves the contradiction between hardness and strength of traditional cemented carbide. It is widely used in the manufacture of integrated circuit board micro drill bits and dot matrix printing. The table machine prints needles, precision tools, difficult-to-machine materials, woodworking tools, medical drills, etc.

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Carbon Fiber Tungsten Disulfide Nanosheet Core-Shell Composites

carbon fiber tungsten disulfide nanosheet core-shell composites image

Tungsten disulfide is a typical layered compound with graphene-like structure. The atoms in the layers are bound by strong covalent bonds, and the van der Waals force between layers is weak. Tungsten disulfide has special mechanical, optical and electrical properties due to its unique structure. Therefore, tungsten disulfide nanomaterials are not only widely used in lubrication and wear fields, but also in catalysis (such as visible light degradation of organic pollutants, visible light hydrogen production, electrocatalytic hydrogen production), lithium batteries (such as anode materials), photoelectric conversion (such as light emitting diodes, solar cells) and other fields. A wide range of attention has been paid by scientific researchers.

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Tungsten Disulfide Solid Lubrication Material Performance Improvement

tungsten disulfide solid lubrication material image

Isothermal die forging is a method of achieving die forging at a slower forming speed while maintaining the mold and the workpiece isothermal. Since the workpiece is deformed at a low strain rate at a high temperature, the deformed material can be sufficiently recrystallized. Therefore, the influence of work hardening can be overcome, and therefore, it is very suitable for forming a part with complicated structure and high strength.

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Tungsten Acidified Zirconia Denitrification Catalyst

tungsten acidified zirconia denitrification catalyst image

Biomass combustion is considered as one of the alternatives to fossil fuels, which can reduce carbon dioxide emissions. In the world, many countries have put forward clear objectives for the development of biomass fuels. According to the medium and long-term development plan of renewable energy in China, by 2020, the total installed capacity of biomass power generation will reach 30 million kilowatts, and the annual utilization of biomass solid briquette fuel will reach 50 million tons. Biomass combustion will inevitably produce nitrogen oxides (NOx), which will cause environmental pollution.

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Tungsten-Molybdenum-Copper Composite Alloy Preparation by Spark Plasma Sintering

tungsten-molybdenum-copper composite alloy preparation image

Tungsten-copper or molybdenum-copper alloys are composites consisting of two-phase mixtures that neither dissolve with each other nor form intermetallic compounds. Tungsten and copper have good arc erosion resistance, weldability, high strength and high hardness. They are widely used in electronic, electrical, military equipment, aviation, aerospace and other new technology fields.

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Silicotungstic Acid - Silica Polyvinylidene Fluoride Proton Exchange Membrane

silicotungstic acid-silica polyvinylidene fluoride proton exchange membrane image

As the fifth generation fuel cell, proton exchange membrane fuel cell (PEMFC) not only has the general advantages of fuel cell, but also has the outstanding advantages of high energy conversion, low temperature start-up, no leakage of electrolytic cell, no corrosion, long life and high specific power. Therefore, the research of PEMFC has become the mainstream of all kinds of fuel cell research.

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Molybdenum Tungstate Based Fluorescent Materials Preparation

molybdenum tungstate based fluorescent materials preparation image

In the early 1990s, GaN-based blue and purple light emitting diodes (LEDs) were first developed by Nichia Company in Japan, which made it possible for full-color LED display and semiconductor lighting. White LED has many advantages, such as all solid, cold light source, long life, small size, high light efficiency, good weather resistance and no mercury pollution. It has been widely used in lighting, display, automobile and other fields.

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