Enhanced Carbon Dioxide Adsorption by a Mesoporous Poly(ionic liquid)

The synthesis of a mesoporous poly(ionic liquid) network via a hard-templating pathway is presented. Structure analysis was carried out using gas adsorption, small-angle X-ray scattering, and electron microscopy. The mesoporous poly(ionic liquid) showed a significantly faster CO2 adsorption than its nonporous counterpart. We found the adsorption is accompanied by strong interactions, which are also reflected in a high CO2 over N-2 selectivity.