Graphite conjugated nickel phthalocyanine for efficient CO₂ electroreduction and Zn-CO₂ batteries.

ABSTRACT: The linking chemistry between molecular catalysts and substrates is a crucial challenge for enhancing electrocatalytic performance. Herein, we elucidate the influence of various immobilization methods of amino-substituted Ni phthalocyanine catalysts on their electrocatalytic CO₂ reduction reaction (eCO₂RR) activity. A graphite-conjugated Ni phthalocyanine, Ni(NH₂)₈Pc-GC, demonstrates remarkable electrocatalytic performance both in H-type and flow cells. In situ infrared spectroscopy and theoretical calculations reveal that the graphite conjugation, through strong electronic coupling, increases the electron density of the active site, reduces the adsorption energy barrier of *COOH, and enhances the catalytic performance. As the cathode cata

SUBMITTER: Han J 

PROVIDER: S-EPMC11378008 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature