Last week, the price of ammonium terephthalate (APT) in Europe and the Chinese export market continued to rise, mainly because Jiangxi Province, the world's leading tungsten production center, is undergoing environmental inspections. In addition, due to the unilateral withdrawal of the United States from the Iranian nuclear agreement, the relevant countries in the Middle East are preparing for war, which has also provoked panic in the global buyer market. Therefore, most people will express their concerns about the future supply of tungsten.

Supercapacitors are new energy storage devices between traditional capacitors and secondary batteries that have developed rapidly in recent years. They have the advantages of both - higher energy density than conventional capacitors, and more than two The higher power density of the secondary battery has made it a widespread concern in the field of new energy vehicles.

As energy consumption increases, a large amount of fossil fuels are consumed, resulting in an increase in the emission of nitrogen oxides, causing great damage to the environment. Therefore, NOx emission control under oxygen-rich conditions has become a research hotspot in the field of environmental catalysis and air pollution control technology.

It is in a period of rapid expansion and production increase in the tungsten mine project in Drakelands, Devon, UK. Up to now, the increase in production capacity and the rise in tungsten prices, have provided strong support for the stock price of developer Wolf Minerals.

With the progress of science and technology, various high-end equipment in the field of national defense and military put forward higher requirements for lithium-ion batteries. It is of great practical significance to seek high-performance lithium-ion batteries. Among them, the performance of cathode materials has become the key factor to limit the further improvement of lithium-ion battery performance. It is very important to find high-performance cathode materials for lithium-ion batteries.

Among many energy sources, hydrogen is a clean and recyclable material, which is considered to be an ideal energy carrier. Electrolyzed water hydrogen production is one of the most promising and clean hydrogen production methods. Traditionally, it can effectively reduce hydrogen evolution. The electrode materials of the potential are mainly platinum-based precious metals, but the reserves of these metal materials on the earth are scarce and expensive, and large-scale promotion cannot be achieved. Therefore, the development and research of a hydrogen evolution electrode with high catalytic activity and low cost is of great theoretical and practical value.

Photocatalysis is a new science. It uses semiconductor photocatalytic materials to obtain cheap and sustainable solar energy from nature, reduce the cost of hydrogen production and decompose various organic pollutants. It has a good application prospect in solving energy crisis and environmental pollution control.

Tungsten copper alloys have been widely used in large capacity vacuum circuit breakers and microelectronics due to their excellent properties. Tungsten and copper are mainly used in electrical materials, including electrical contact materials and electrode materials. Tungsten copper alloy sheet has been used in power electronic devices as a new type of electronic packaging material due to its small expansion coefficient and good conductivity and thermal conductivity.

Long afterglow materials refer to materials that can absorb and store energy irradiated by external light, and then release these energy slowly in the form of visible light at room temperature. Long afterglow material is a new type of functional material which meets the development requirements of the 21st century. It has the characteristics of high efficiency, energy saving, green and environmental protection. Its application range has also expanded from lighting, decoration to communication, display and storage.

Aluminum matrix composites have the advantages of low density, high tensile strength, high modulus of elasticity and high wear resistance. Therefore, aluminium matrix composites have great application potential in aviation and aeronautics.