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January 18, 2026Open Access

pH-dependent redox hydrogen pump for electrochemical direct air capture of CO 2

Key Points

This research aims to develop an innovative electrochemical method for capturing CO2 from the atmosphere using a redox mediator influenced by pH.
Utilized a dual-electrolyzer system for CO2 capture
Implemented a pH-dependent redox mediator
Evaluated energy efficiency of the new strategy
Achieved significant reduction in energy required for CO2 capture
Demonstrated effectiveness of the pH-dependent redox mediator in the capture process

Abstract

This work addresses a critical challenge in dual-electrolyzer systems for direct air capture of CO 2 (DAC): a new electrochemical DAC strategy utilizing a pH-dependent redox mediator to achieve low-energy CO 2 capture.

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pH-dependent redox hydrogen pump for electrochemical direct air capture of CO 2 | Synapse

Cite This Study

Zhang et al. (Thu,) studied this question.

synapsesocial.com/papers/696c77f1eb60fb80d13962f3 https://doi.org/https://doi.org/10.1039/d5ra09310d