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Membraneless Process and Flow Battery Promise Cheaper, Greener Carbon Capture - Image

Membraneless Process and Flow Battery Promise Cheaper, Greener Carbon Capture

25 August 2025

Researchers at the University of Houston have unveiled two major breakthroughs that could make carbon capture more affordable and energy efficient. In the first, they eliminated the costly ion-exchange membrane from electrochemical amine regeneration, replacing it with engineered gas diffusion electrodes. This innovation boosted CO₂ removal rates above 90% while cutting capture costs to about $70 per metric ton, making it competitive with leading methods. The second advance introduced a vanadium redox flow battery that not only stores renewable energy but also absorbs and releases CO₂ during charge and discharge cycles. This dual-function design offers strong cycle stability and positions the system as both a carbon removal tool and a grid-balancing solution. Together, these developments highlight new pathways to decarbonize hard-to-abate industries, reduce global emissions, and support the transition to a low-carbon economy.