Tailorable Ionic Frameworks for Selective Gas Adsorption and Separation: Bridging Experimental Insights with Mechanistic Understanding.

The selective adsorption and separation of gases using solid adsorbents represent a crucial method for the treatment of toxic gases and the preparation of high-purity gases. The interaction forces between gas molecules and solid adsorbents are influenced by various factors, making precise design of adsorbents to achieve specific gas adsorption a pressing issue that requires urgent attention. In this study, a series of ionic frameworks constructed from Na and polyoxometalates (POMs) have been constructed through ionic interactions, and possess multiple adjustable parameters.

Polyoxometalate-Containing Supramolecular Gels.

Supramolecular gels are important soft materials with various applications, which are fabricated through hydrogen bonding, π-π stacking, electrostatic interactions, or host-guest interactions. Introducing functional groups, especially inorganic components, is an efficient strategy to obtain gels with robust architecture and high performance. Polyoxometalates (POMs), as a class of negatively-charged clusters, have defined structures and multiple interaction sites, resulting in their potential as building blocks for constructing POM-containing supramolecular gels.