Pore Structure and Gas Diffusion Features of Ionic Liquid-Derived Carbon Membranes

In the present study, concept of Ionic Liquid (IL)-mediated formation carbon was applied to derive composite membranes bearing a nanoporous phase within their separation layer. Thermolytic carbonization supported ionic liquid membranes, prepared by infiltration IL 1-methyl-3-butylimidazolium tricyanomethanide into porous network Vycor® glass tubes, precursor Carbon/Vycor® composites. All precursors underwent second cycle infiltration/pyrolysis with target finetune pore structural characteristics carbonaceous matter nesting inside The assets and evolution gas permeation properties efficiency as-derived were investigated reference duration step. transport mechanisms permeating gases elucidated correlated analysis LN2 adsorption isotherms. Regarding fabricated He/CO2 ideal selectivity values as high 4.31 at 1 bar 25 °C 4.64 0.3 90 achieved. addition, CO2/N2 becomes slightly improved for longer second-impregnation times.