Highly Cooperative CO Adsorption via a Cation Crowding Mechanism on a Cesium-Exchanged Phillipsite Zeolite.

An understanding of the CO adsorption mechanisms on small-pore zeolites is of practical importance in the development of more efficient adsorbents for the separation of CO from N or CH . Here we report that the CO isotherms at 25-75 °C on cesium-exchanged phillipsite zeolite with a Si/Al ratio of 2.5 (Cs-PHI-2.