As fossil fuel cars and trucks are being phased out globally, people are exploring more environmentally friendly alternative technologies, such as electric vehicles. One of the most promising "green" technologies is hydrogen energy, but so far, due to the scale, complexity and cost of the fuel system, it has not been able to be applied on a large scale. According to foreign media reports, an international research team led by Professor David Antonelli of Lancaster University in England discovered a new material made of manganese hydride that provides a hydrogen energy solution. The new material can be used to make molecular sieves in fuel tanks. Hydrogen can be stored in fuel tanks, and work together with fuel cells in a hydrogen-powered "system."
The new material is called KMH-1 (Kubas Manganese Hydride-1), which can make the fuel tank of a hydrogen-powered car smaller, cheaper, more convenient, more energy-intensive, and has remarkable performance than the existing hydrogen fuel technology. Better than battery-powered cars.
Professor Antonelli, director of the Department of Physical Chemistry at Lancaster University, has been engaged in research in this field for more than 15 years. He said: "The cost of producing such materials is very low, but the energy density of this material is as high as that of lithium-ion batteries. As a result, the cost of this hydrogen fuel cell system is 5 times lower than that of existing lithium-ion batteries, but it can support a longer cruising range, which is extended by 3 or 4 times. "
The material utilizes the Kubas binding chemistry process, which allows hydrogen atoms in hydrogen molecules to maintain a certain distance at room temperature, thereby achieving hydrogen storage, eliminating splitting and bonding of chemical bonds between hydrogen atoms (requires high Energy, extreme temperatures and complex equipment to complete)).
The KMH-1 material can also absorb and store excess energy, so it does not require external heating and cooling. This is very important, which means that the vehicle does not need to use cooling and heating equipment, so that the potential efficiency of the system is much higher than the existing design.
The working principle of molecular sieve is to absorb hydrogen at 120 atmospheres, which is lower than ordinary submersibles. Then, when the pressure is released, hydrogen is released from the fuel tank into the fuel cell.
Researchers' experiments have shown that, under the same volume, the material can store three times more hydrogen than existing hydrogen fuel technology. For car manufacturers, it can provide design flexibility and increase the cruising range of the vehicle to The original three times, or the size of the fuel tank can be reduced to three times the original.
Although the most obvious application areas of the KMH-1 are in automobiles and heavy trucks, researchers believe that there are other applications. Professor Antonelli said: "This material can also be used in portable devices such as drones or mobile chargers, allowing people to take a week-long camping trip without having to charge the device. The advantage is that when people expect to stay away from the grid for a long time, It can also be used for fuel cells to power houses or remote areas. "
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