High pressure synthesis and characterization of metal hydrides and nitrides

Recent advancements in high pressure (HP) techniques, combined with the development of 4thgeneration sources, have opened up access to a new chemistry of elements. This is evidenced by the significant increase in the number of new compounds synthesized in the megabar range over the last decade. Of particular interest are the new nitride and hydride compounds synthesized at high temperatures (T) and in the range of 50-250 GPa using the laser-heated diamond anvil cell (DAC) [1-6]. This project aims to significantly lower the synthesis pressure and obtain samples of new nitrides, hydrides, and hydronitrides by exploiting the strong reactivity of NH3 as a source of N and H.

高压（HP）技术的最新进展，结合第四代高压源的研发，为元素新化学研究开辟了全新路径。近十年来，兆巴级压力区间内合成的新型化合物数量显著增长，便是这一进展的有力佐证。其中尤为值得关注的是，借助激光加热金刚石对顶砧（DAC），在高温（T）以及50-250 GPa的压力区间内合成的新型氮化物与氢化物化合物[1-6]。本项目旨在利用氨（NH3）作为氮源与氢源所具备的强反应活性，大幅降低合成压力，进而获取新型氮化物、氢化物以及氢氮化物的样品。