A triazolate-based MOF with amino-induced triazolate reorientation enabling pore-size regulation for CO2/CH4 separation

Abstract

Angstrom-level pore regulation in a triazolate-based MOF is achieved through a reorientation of triazolate rings induced by amino functionalization. The resulting pore contraction effectively suppresses CH₄ diffusion while preserving CO₂ transport, leading to markedly enhanced CO₂/CH₄ selectivity.