Effect of mono- and divalent extra-framework cations on the structure and accessibility of porosity in chabazite zeolites

The differences in valence and size between extra-framework cations exert a significant effect on the nitrogen sorption ability in the synthesised chabazite zeolites (K-CHA, Cs-CHA, Ca-CHA, Ba-CHA, Sr-CHA and Zn-CHA).