Dr. T. Alan Hatton’s pioneering work on electrochemically mediated amine regeneration (EMAR) and redox-active CO2 carriers laid the foundation for a new paradigm in carbon capture. Building directly on his legacy, we developed a unified approach named Redox-Tunable Acid Mediated Amine Regeneration (RAMAR) that electrifies amine scrubbing using robust, low-cost Wurster-type molecules. These redox-active acids reversibly modulate their pKₐ over 20 units via proton-coupled electron transfer, enabling efficient amine regeneration and CO2 release under mild conditions. Our symmetric flow cell prototypes achieve over 400 hours of stable operation under aerobic conditions with high efficiency and low energy input. By combining molecular design with scalable engineering, RAMAR charts a new path for practical, electrified carbon capture systems inspired by Dr. Hatton’s visionary contributions.
