The United States has developed boron-nitrogen-based liquid hydrogen storage materials
American chemists have developed a boron-nitrogen-based liquid hydrogen storage material, which can work safely at room temperature, and can also be stable in air and water. This technological advancement has helped scientists overcome the hydrogen storage and hydrogen storage that currently restricts the development of the hydrogen economy. Transportation problems provide a solution. Related research is published in the online edition of the Journal of the American Chemical Society.
Hydrogen is regarded as the best substitute for fossil fuels, but hydrogen production, hydrogen storage, and transportation of hydrogen have always been an important link restricting the development of hydrogen energy. The new hydrogen storage material developed by the scientific research team led by Liu Shiyuan, a professor of chemistry at the Institute of Materials Science at the University of Oregon, is a ring-shaped boron-hydrogen compound called boron nitrogen-methylcyclopentane. The material can work at room temperature and has stable performance. In addition, the material can also release hydrogen, and the hydrogen release process is environmentally friendly, fast, and controllable; and, no phase change occurs during the hydrogen release process. The material uses common ferric chloride as a catalyst to release hydrogen, and it can also recycle the energy used for hydrogen release.
Importantly, the new hydrogen storage materials are liquid rather than solid. Liu Shiyuan said that the liquid hydride hydrogen storage technology has the advantages of large hydrogen storage capacity, safe and convenient storage, transportation, maintenance and maintenance, easy to use the existing oil storage and transportation equipment, and can be recycled many times. This will reduce the global cost of transitioning from fossil fuel to hydrogen economy. "At present, the hydrogen storage materials developed by scientists are basically solid materials such as metal hydrides, adsorbent materials and ammonia borane. Liquid hydrogen storage materials are not only convenient for storage and transportation, but also can use the current popular liquid energy infrastructure "Said Liu Shiyuan.
The key to developing this liquid hydrogen storage material is the chemical method. At the beginning, Liu Shiyuan's team discovered that 6-ring ammonia borane would form a larger molecule and release hydrogen gas. However, ammonia borane is a solid material. Therefore, by reducing the number of rings from 6 to 5 rings and other structural modifications, they successfully manufactured this liquid hydrogen storage material, whose vapor pressure is relatively low, and, The release of hydrogen does not change its liquid properties.
Liu Shiyuan said that the new material is suitable for portable devices powered by fuel cells, but this technology needs to be continuously improved, mainly to increase the production of hydrogen and develop a more energy-efficient regeneration mechanism.
The United States has developed boron-nitrogen-based liquid hydrogen storage materials
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