Single-Molecule Traps in Covalent Organic Frameworks for Selective Capture of C₂H₂ from C₂H₄-Rich Gas Mixtures.

ABSTRACT: Removing trace amounts of acetylene (C₂H₂) from ethylene (C₂H₄)-rich gas mixtures is vital for the supply of high-purity C₂H₄ to the chemical industry and plastics sector. However, selective removal of C₂H₂ is challenging due to the similar physical and chemical properties of C₂H₂ and C₂H₄. Here, we report a "single-molecule trap" strategy that utilizes electrostatic interactions between the one-dimensional (1D) channel of a covalent organic framework (denoted as COF-1) and C₂H₂ molecules to massively enhance the adsorption selectivity toward C₂H₂ over C₂H₄. C₂H₂ molecules

SUBMITTER: Zhou Y 

PROVIDER: S-EPMC11345538 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature