The newly established EuroTech Working Group on Chemistry and Chemical Engineering is launching a biweekly online seminar series: Every other Wednesday, the group is offering a one-hour talk open to all. Join us on 12 May for the third talk:
Prof. Kumar Varoon Agrawal
GAZNAT Chair of Advanced Separations, École Polytechnique Fédérale de Lausanne
Chemistry & engineering of two-dimensional materials for energy-efficient molecular separation
I will present our work on the synthesis of nanoporous two-dimensional materials such as graphene, graphitic carbon nitrides and zeolite precursors using a number of top-down and bottom-up synthetic strategies. In case of graphene, I will discuss defect nucleation and expansion strategies that allow incorporation of vacancy defects (nanopores) at a high density but with a narrow pore-size-distribution with a resolution of 0.3 Å for molecular differentiation, leading to realization of record-high performance in post-combustion carbon capture. I will discuss mechanical reinforcement strategies that allows one to scale-up nanoporous single-layer graphene membranes for gas separation which has led to a pilot plant demonstration project. Finally, I will discuss synthesis and tuning of gas transport pathways from nanoporous two-dimensional nanosheets and their films that allow facile fabrication of membranes for pre-combustion carbon capture.