A way to cut CO 2 2 from emissions (" postcombustion "). The captured CO 2 Graphene helps co2 filtering membranes get more efficient image.
Carbon-selective polymer chains anchored on graphene effectively pull CO2 from a flue gas mixture.Credit: KV Agrawal (EPFL)
Carbon capture can be done using high-performance membranes, which are polymeric filters 2 2 from a mix of gases, these as are emitted from a factory's flue. These membranes are environmentally friendly, they can not generate waste, they can intensify chemical processes, and can 2 Emission, Now, scientists (led by Kumar Varoon Agrawal) at Ecole Polytechnique Federale de Lausanne (EPFL ) have deve loped a new class of high-performance membranes that exceed post-combustion capture targets by a significant margin. 20 nm, and have highly tunable chemistry, so they can pave the way for next-generation high-performance membranes for several critical separations.
Current membranes are required to exceed 1
"Functionalizing CO 2 -selective polymeric chains on nanoporous graphene allows us to fabricate nanometer-thick yet CO 2 -selective membranes," says Agrawal. "This two-dimensional nature of the membrane drastically increases the CO 2 permeance, making membranes even more attractive for carbon capture." The concept is highly generic, and a number of high-performance gas separations are possible in this way. "