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- Title
高压下惰性元素氦化合物的研究进展.
- Authors
田艺帆; 刘寒雨
- Abstract
Helium (He), the second element in the periodic table, is the most abundant element in the universe apart from hydrogen. It is widely accepted that He exists in the interiors of gas giant planets which holds the high-pressure conditions. Helium is extremely difficult to react with other elements to form compounds owing to its strong chemical inertness determined by the full-shell electronic structure. However, in recent years, several studies have shown that physical behavior of helium is not that simple under extremely high pressure, such as the predicted stable helium compound FeO2He and the predicted water helium compound He-H2O with anomalous atomic diffusion under high pressure. These results not only play a leading role in the discovery of new paradigm on chemical bonding, but also make a substantial step for the relevant researches in the fields of high-pressure physics, geoscience, and planetary science. This paper mainly introduces the progress on helium compounds at high pressure, focuses on discussing the physical mechanism of their stability, and provides prospects for future research on the design and discovery of new helium compounds under high pressure.
- Subjects
PERIODIC table of the elements; ELECTRONIC structure; CHEMICAL bonds; HELIUM; EXPERIMENTAL design
- Publication
Chinese Journal of High Pressure Physics, 2023, Vol 37, Issue 3, p030101-1
- ISSN
1000-5773
- Publication type
Article
- DOI
10.11858/gywlxb.20230635