Constructing a Triangle Ensemble of Pt Clusters for Enhanced Direct-Pathway Electrocatalysis of Formic Acid Oxidation

The pursuit of operational advancements in direct formic acid fuel cells (DFAFCs) necessitates the development high-performance platinum (Pt)-based catalysts for electrooxidation (FAOR). However, FAOR on Pt-based follows a dual pathway mechanism, which is preferred route due to its efficient dehydrogenation process. Conversely, indirect results generation adsorbed CO species, process that deleteriously poisons active sites catalyst, with species only being oxidizable at higher potentials, causing significant compromise catalyst performance. Herein, we have successfully synthesized Pt-C3N4@CNT, where three Pt clusters are precisely dispersed triplet form within C3N4 by virtue unique structure C3N4. mass activity (0.44 V) delivered current density 1.91 A mgPt−1, while (0.86 had no obvious oxidation peak. selectivity Pt-C3N4@CNT was improved special C3N4, facilitates dispersion tri-atoms and electronic interaction Pt. In this study, provide new strategy highly selective DFAFCs.