Lecturer:　Dr. Dan Zhao (National University of Singapore)

Time:  2016-06-07 15:00

Place:　Science and technology exhibition hall on 1st floor, New Chemistry Building

Detail:　The large-scale CO₂ emission has aroused world-wild concerns and one of the key steps in carbon mitigation is CO2 capture. The study of CO₂ capture using metal-organic frameworks (MOFs) as adsorbents is booming because of their ultra-high surface area, uniform yet tunable pore size, and versatile chemical compositions. However, several issues still exist, such as selectivity, stability, and material cost. In the first part of this talk, I will introduce rational ligand design and crystal engineering based on UiO-66-type MOFs circumventing the above problem. In the second part, I will introduce our work in preparing mixed matrix membranes (MMMs) containing lamellar MOFs or covalent organic frameworks (COFs) fillers with high-aspect-ratio, which exhibit good gas separation performance. Lastly, I will discuss the direct fabrication of ultrathin membranes composed of 2D graphene oxide (GO). Because of their ultra-small thickness and precisely tunable pore size and functionality, these novel membranes may demonstrate unprecedented gas separation performance. 

Organizer:  School of Chemistry and Materials Science/Hefei National/Hefei National Laboratory for Physical Sciences at the Microscale