MOF Membranes
We develop metal–organic framework (MOF) membranes with precisely defined pores for molecular separations. Our work focuses on growing continuous crystalline layers on porous supports while controlling defects, crystal orientation, and structural changes during activation. By connecting membrane fabrication with separation performance, we aim to turn the molecular selectivity of MOFs into reliable membranes for gas separation and liquid dehydration.
Membranes for CO₂ Capture
We design MOF membranes and MOF-containing mixed-matrix membranes to separate CO₂ from N₂ and CH₄, with applications in flue-gas treatment and natural-gas purification. We tailor pore chemistry, framework structure, and membrane morphology to improve CO₂ permeation and selectivity. Our research also examines how fabrication and activation affect performance under mixed-gas conditions.
Mass Transport in Membranes
We investigate how molecules enter, move through, and leave membrane pores. Using permeation experiments and kinetic modeling, we study phenomena such as single-file diffusion, competitive adsorption, and resistance at gas–membrane interfaces. These insights help us explain why a material’s predicted separation performance can differ from that of a fabricated membrane and guide the design of more effective separations.