The University of Nottingham, United Kingdom, issued a news release on June 28. The researchers at the university invented a new method for preparing uranium-nitrogen compounds. Not only do the preparation conditions require much less than the current method, but also they are clean and efficient. Due to its high density, high stability, and high thermal conductivity, uranium and nitrogen compounds are expected to be expected to be nuclear fuel for future reactors. The compound is usually obtained by mixing nitrogen or ammonia with uranium under high temperature and high pressure, but its preparation conditions are very strict, and impurities that are difficult to remove are produced in the preparation process. Therefore, scientists have tried hard to try it at a low temperature in recent years. Molecular methods for preparation. Attempts to make triple bonds of uranium and nitrogen in the past all required cryogenic temperatures of 5 Kelvin (minimum 268 degrees Celsius). This requirement was very stringent and required specialized equipment and techniques, making it difficult to operate. According to the Nottingham University news bulletin, the new method invented by researchers at the university is relatively simple. They use a large amount of nitrogen ligands (organic molecules bound to the metal) to encase uranium to form a protective “pocket†containing nitrides; during the synthesis, weakly bound sodium ions (with positively charged ions) are injected. It is used to effectively block the chemical reaction of nitrogen with other elements to ensure the stability of nitride; then the sodium ions in the structure are removed, and a stable uranium-nitrogen triple bond is finally obtained. According to the announcement, the uranium-nitrogen compounds prepared by this method can not only maintain a stable state at room temperature, but also can be stored in containers in the form of crystals or powders. Dr. Stephen Riddle of the University of Nottingham said that this new method is easy to use and will help scientists understand the nature and scope of uranium covalent chemical bonds, which is very important and may help extract 2% from nuclear waste - 3% of highly radioactive material. According to a press release, this breakthrough research shows that in the future nuclear industry, uranium-nitrogen compound materials can be an effective alternative to current mixed-oxide nuclear fuels. (Reporter: Liu Haiying) Sensor Light,Sensor Downlight,Sensor Ceiling Light,Sensor Garage Lamp JIANGMEN MOSCOT OPTOELECTRONIC TECHNOLOGY CO.,LTD. , https://www.sensorsled.com