Тип публикации: статья из журнала

Год издания: 2023

Идентификатор DOI: 10.3390/membranes13090754

Ключевые слова: low-density silica glass, expanded silica glass, helium, neon, permeability, selectivity, membrane separation of a helium-neon mixture

Аннотация: The diffusion properties of low-density non-porous silica glasses (expanded silica glasses) were researched with the aim of searching for the molecular structure of membrane materials intended for the effective separation of helium–neon gas mixtures. It has been shown on a large number (84) of computer models of such glasses that tПоказать полностьюhere are molecular structures of silica in which various helium and neon diffusion mechanisms are simultaneously implemented: superdiffusion for helium and subdiffusion for neon. This makes it possible to significantly (by 3–5 orders of magnitude) increase the helium permeability of such glasses at room temperature and maintain a high selectivity for the separation of helium and neon (at the level of 104–105) at the same time.

Журнал: Membranes

Выпуск журнала: Т.13, №9

Номера страниц: 754

ISSN журнала: 20770375

• Kukhtetskiy Sergey V. (Federal Research Center “Krasnoyarsk Science Center SB RAS”, Institute of Chemistry and Chemical Technology SB RAS)
• Fomenko Elena V. (Federal Research Center “Krasnoyarsk Science Center SB RAS”, Institute of Chemistry and Chemical Technology SB RAS)
• Anshits Alexander G. (Department of Chemistry, Siberian Federal University)

• Ядро РИНЦ (eLIBRARY.RU)