Interfacial WOCo electronic bridge enhances proton transfer for efficient amine solution regeneration in <scp> CO ₂ </scp> capture

Abstract Catalyst‐aided amine regeneration represents a promising strategy to alleviate the high‐energy‐consumption bottleneck in CO 2 capture. However, conventional solid acid catalysts possess limited proton‐donating capacity and inferior electron transfer efficiency, making it challenging to realize efficient catalytic amine regeneration and reduced energy consumption. Herein, we in situ synthesize a WOCo bridged oxyhydroxide catalyst (CNT@WCo) on CNTs. The WOCo structure induces directional electron transfer from Co to W, polarizing hydroxyl groups and enhancing proton donation. The high conductivity of CNTs promotes efficient PCET, stabilizing the electron‐deficient Co center and weakening the CN bond. CNT@WCo increases instantaneous CO 2 desorption rate by 8.66 times and reduces relative heat duty by 59%, with excellent cyclic stability. In situ FTIR and DFT reveal strong carbamate adsorption, electron rearrangement, and CN bond elongation. The synergistic mechanism of W‐mediated proton donation and CNT‐governed PCET is established, providing theoretical and technical support for designing high‐performance catalysts for energy‐efficient CO 2 capture.