Реферат: The use of liquid hydrogen as a fuel is a promising alternative to fossil fuels. Molecular hydrogen can exist in the form of two nuclear spin isomers - ortho-hydrogen and para-hydrogen; however, safe storage and transportation can be realized only for para-hydrogen. Therefore, liquefied hydrogen is subjected to ortho-para conversion using paramagnetic catalysts. In industry, iron oxide-based catalysts (e.g. Ionex®) are commonly used for ortho-para conversion of hydrogen. However, these materials have rather low porosity and availability of metal ions for hydrogen. On the other hand, the porosity and availability of paramagnetic metal ions for hydrogen is much higher in metal-organic framework (MOFs), which have attracted considerable attention of the scientific community in recent years. In this work, we studied the efficiency of a number of MOFs catalyst in the process of ortho-para conversion of hydrogen. As part of a systematic study of MOFs as catalysts for this process, it was found that the specific rate constant of ortho-para conversion on the MOF surface is more than 100 times higher than that of commercially used catalysts[1]. This work was supported by the Russian Science Foundation (No. 22-73-10239).

Библиографическая ссылка: Poryvaev A. , Syrtsov D.A. , Polyukhov D. , Kudriavykh N. , Kiryutin A. , Fedin M.
MOF catalyzed ortho–para hydrogen conversion
В сборнике Book of abstracts of Spin Chemistry Meeting. 2024.

Даты:

Поступила в редакцию:	30 июн. 2024 г.
Опубликована online:	1 окт. 2024 г.

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