Consequences of cavity size and palladium addition on the selective hydrogen adsorption in isoreticular metal-organic frameworks

► Three IRMOFs (IRMOF-1, IRMOF-8 and IRMOF-10) were tested for H2 and CO2 adsorption. ► Effect of Pd impregnation on the selective H2 adsorption was studied. ► H2 spillover and structural degradation of the MOF determine H2/CO2 ratio improvement.