A lot strategies had been applied to improve the enactment of lithium-ion batteries (LIBs) for next-generation electric vehicles (EVs). However, improving the energy density of LIBs is key extend the driving range of current EVs. Graphite has been broadly employed as the industrial standard LIBs anode material. However, graphite suffers from low theoretical capacity. Tungsten disulfide (WS2) is a transmission metal oxide which reveals trigonal prismatic structure and are indirect gap semiconductors in the bulk form with a bandgap of 1∼1.3 eV in the single-layer. This feature is used in a variety of fields, including energy storage, catalysis, solar cell, sensing, and electronic devices.

Air quality monitoring and toxic gas emissions had risen to be a global concern in the past decades. Researchers have been trying various and massive strategies to find an effective gas sensor and its synthesis methods in this field. A practical gas sensor should detect a particular gas among a mixture of gases and continuously monitor an atmosphere. There are many types of gas sensors depend on different classification methods.

W–Cu composite combine high electrical and thermal conductivity of Cu and high arc corrosion resistance, hardness, and low thermal expansion coefficient of tungsten, and show excellent properties. Due to the distinct performance, W–Cu composites have found potential applications in electronic packaging, electric contact, aerospace, and some other high-tech areas. However, in some severe working environments, such as aerospace, micro electric manufacturing, etc, may face the issues of low relatively density and inhomogeneous microstructure.

The mechanical properties of carbon nanotube composites are mainly studied by experiment, theoretical analysis and numerical method. The common methods for the mechanical properties of carbon nanotubes include amplitude calculation, cantilever/simply supported beam model, and direct methods. The mechanical parameters of carbon nanotubes are derived by classical mechanics.Solid acid catalysts play a significant part in chemical and petroleum industries in hydrocarbon conversion reactions required in octane enhancement processes, such as cracking, isomerization and alkylation, which can form highly branched isoparaffins. Such reactions need strong or moderate acid catalysts.

WC-Co cemented carbide has widely used in machining, drilling, automotive, military, and aerospace owing to its excellent mechanical performances. Most research on cemented tungsten carbides with a cobalt binder (WC-Co cemented carbides) has focused on improving their strength, fracture toughness, and hardness.

As the demands for solar energy, pure air and water, and disposing of poisonous and hazardous pollutant are increasing, the use of semiconductor photocatalysts for environmental purification has attracted considerable attention due to their applicability for the removal of a wide variety of pollutants. Especially TiO2 has been studied widely in virtue of the high photocatalytic activity for organic pollutants such as RhB, tetracycline, phenol, and methylene blue under UV irradiation. Although TiO2 has various merits, the practical application of TiO2 is limited by its low photon utilization efficiency and the need for an ultraviolet excitation source which accounts for only a small fraction of solar light (approximately 5%).

Currently, due to the environmental situation worsening, in various countries and especially in the large cities, more and more funds have been allocated for the development of the green energy industry and environmentally friendly technologies. Hydrogen energy is an energy source that has increased its popularity in recent years. It is a clean energy source that can be used instead of fossil fuels. Hydrogen it can be used instead of fossil fuels due to its higher energy content and less environmental impact. The density of hydrogen is lower than the density of air. The gravimetric density of hydrogen energy is generally about seven times higher than the density of fossil fuels.

Cobalt tungstate (CoWO4) with monoclinic wolframite structure has been used in a wide range of potential applications including supercapacitors, photocatalysts, catalyst for oxygen evolution reaction (OER) and hydrogen production, microwave dielectric ceramics, photovoltaic electrochemical cells, among others. As electrochemical energy storage devices, batteries and supercapacitors have attracted significant attention due to their intrinsic characteristics of energy and power densities, cycling stabilities and charging-discharging rates.

A fabrication process of tungsten oxide (WO3) nanoplates with ammonium paratungstate has been performed, the product showed great photocatalytic activity due to the plate-like shape. Tungsten oxide (WO3) is a promising candidate for semiconductor gas sensors, electrochromic devices and photocatalysts. Structure and morphology of WO3 have obvious influences on its properties and applications. It has been reported that tungsten oxide with mixed structures exhibits poor optical properties, whereas the single-structure tungsten oxide, either hexagonal or cubic, exhibits noticeable absorption capacity.