论文部分内容阅读
超高压技术近年来得到了快速的发展,特别是金刚石压腔装置的完善,目前已经可以达到550GPa和6000K的条件,使其在化学研究中具有巨大的应用前景。压力作为基本的参数,压力作用对物质的电子结构和晶体结构都存在很大的影响。超高压对电子结构的影响包括原子内和原子间,其中原子间的电荷变化包括电荷转移、不均匀分布、以及绝缘体向金属转变。物质的晶体结构在超高压作用下会发生从松散向致密的结构形式的相转变。超高压技术在有机化学反应的选择性、无机固相反应、以及气体的聚合反应等领域都具有重要的应用潜力。
EHV technology has been developed rapidly in recent years. In particular, the improvement of diamond cavity devices has reached 550 GPa and 6000K, which has great potential for application in chemical research. Pressure as a basic parameter, the pressure of the material on the electronic structure and crystal structure have a great impact. The effects of EHV on the electronic structure include intra- and inter-atomic charges, in which the charge changes between atoms include charge transfer, non-uniform distribution, and insulator-to-metal transition. The crystal structure of the material undergoes a phase transition from a loose to a dense structure under the effect of ultrahigh pressure. EHV technology has important potential applications in the fields of selectivity of organic chemical reactions, inorganic solid-phase reactions, and gas polymerization reactions.