Elastic layered metal-organic framework (ELM) adsorbents are a group of latent porous crystalline materials that undergo abrupt reversible transitions from a nonporous collapsed structure to an expanded porous structure through cooperative adsorption of guest molecules between layer planes. These materials have attracted interest due to their unique gating adsorption and high selectivity for simple gas molecules like CO2 and show promise as a new generation of gas separators.
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