Pyridinic-graphene membranes show promise for large‑scale carbon capture

Researchers from EPFL have conducted a comprehensive techno‑economic assessment of a novel graphene‑based membrane that could transform carbon capture across energy‑intensive industries. The study focuses on pyridinic‑graphene – a single‑atom‑thick graphene sheet featuring angstrom‑scale pores doped with nitrogen atoms that create a strong preference for CO₂ over other gases.

Representation of three generations of graphene membranes. Image from: Nature Sustainability

Led by Marina Micari and Kumar Varoon Agrawal, the work combines empirical membrane performance data with process modeling and uncertainty‑aware cost analysis. By simulating realistic plant operation – energy consumption, gas‑flow dynamics, and pressure drops – the researchers evaluated how these membranes would perform under different industrial conditions. The results build on EPFL’s broader effort to develop scalable, high‑performance graphene membranes for gas separations.

Representation of three generations of graphene membranes. Image from: Nature SustainabilityLed by Marina Micari and Kumar Varoon Agrawal, the work combines empirical membrane performance data with process modeling and uncertainty‑aware cost analysis. By simulating realistic plant operation – energy consumption, gas‑flow dynamics, and pressure drops – the researchers evaluated how these membranes would perform under different industrial conditions. The results build on EPFL’s broader effort to develop scalable, high‑performance graphene membranes for gas separations.

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