Krypton/Xenon separation at room temperature in a flexible coordinative framework sorbent

The separation of xenon from krypton holds significant importance across various fields, including high-tech industries, national defence, and aerospace. Adsorptive separation via porous solids is considered one of the most promising alternatives to conventional energy-intensive cryogenic processes. While traditional adsorbents selectively capture xenon over krypton under ambient conditions, their desorption energy penalties for producing pure xenon impede practical implementation. Here, we present a metal‒organic framework characterized by synergistic structural and local flexibility that reverses conventional selectivity, thereby enabling preferential adsorption of krypton at room temperature. This material…

• NN
  National Natural Science Foundation of China

  Award: 22071234
• CA
  China Academy of Engineering Physics
• IU
  Institut Universitaire de France
• UO
  University of Science and Technology of China
• GÉ
  Grand Équipement National De Calcul Intensif
• CF
  CAEP Foundation