Preparation and gas separation performance of supported carbon membranes with ordered mesoporous carbon interlayer

摘要: An ordered mesoporous precursor synthesized by the soft-templating approach has successfully been used to prepare a carbon interlayer between thin separation layer and support of membranes. Morphology pore structure characteristics (OMC) were investigated HRTEM, XRD, SEM N2 adsorption techniques. Gas properties resultant supported membranes evaluated single gas permeation experiments. The results showed that OMC can effectively reduce surface defects with large sizes, improve interfacial adhesion layer, further enhance uniform channels. one-step coating on modified achieved O2, CO2 H2 permeances 74.5, 88.0 545.5 mol m−2 s−1 Pa−1×10−10, respectively. These are about 4 times higher than those without very competitive respect other reported in literature. clearly indicate this novel using as an fabricate macro–meso–microporous gradient have attractive potential for separation.