Dynamic metal-organic frameworks for the separation of hydrogen isotopes.

Dalton Trans

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fujian, Fuzhou 350002, China.

Published: December 2020

AI Article Synopsis

  • Dynamic metal-organic frameworks (MOFs) can undergo reversible structural changes when exposed to stimuli, allowing for improved gas separation capabilities known as breathing effects or gate-opening phenomena.
  • The separation of hydrogen isotopes is particularly challenging due to their similar properties, but dynamic MOFs can enhance this process through structural transitions triggered by isotopes or temperature.
  • The article highlights examples of dynamic frameworks for hydrogen isotope separation and aims to draw more interest to this area of research.

Article Abstract

Reversible structural transformation upon exposure to external stimuli can lead to breathing effect or gate-opening phenomena for dynamic metal-organic frameworks (MOFs), which endow them with excellent gas separation performance. The separation of hydrogen isotopes remains a huge challenge due to their nearly identical physical and chemical properties. The unique feature of dynamic MOFs, especially structural transition triggered by isotopes or by temperature, maximally enhances kinetic quantum sieving and contributes to the highly selective separation of hydrogen isotopes. Herein, we present some examples for the separation of hydrogen isotopes based on dynamic frameworks, and we expect to attract increasing attention to this research field.

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Source
http://dx.doi.org/10.1039/d0dt02806aDOI Listing

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