| 초록 |
Due to the growing demand for gas separation in industry, numerous studies on the fabrication of high-performance gas separation membrane has been reported. Among various materials used for gas separation, graphene oxide (GO) and metal-organic frameworks (MOF) have drawn attention by their high selectivity for specific gases. However, GO and MOF-based membranes suffer from loss of their selectivity among gases by their low stability in humid and acid conditions. Graphene oxide nanoribbon (GONR), a graphitic material with a one-dimensional structure has been spotlighted in the field of membrane separation by its narrow nanochannel for selectivity, stability in humid, acid conditions via entanglement, and its unique macroporous scaffold structure at high concentration enabling scalable fabrication. Herein, we demonstrate polymer/GONR hybrid membrane with high permeance for H2/CO2 separation prepared by scalable shear coating. The interaction between CO2 and intercalated polymers grants H2/CO2 selectivity, while the GONR scaffold enables fast permeation of gases. |
