Few‐Layer Ag‐Coated Ordered Mesoporous Pt Nanocrystals for Ethanol Oxidation

Direct ethanol fuel cells have broad application prospects, but there are still some issues such as slow oxidation kinetics and poisoning effects of intermediates in the anodic reduction reaction (EOR). Herein, a series few-layer Ag-coated ordered mesoporous Pt nanocrystals ([email protected]) with different Ag shell thicknesses prepared by combining hard templating situ methods. Benefiting from structure, lattice strain, electronic synergistic effect induced core–shell [email protected]2 exhibit best EOR performance mass activity 10.01 A mgPt−1, which is 8.40-fold commercial Pt/C 4.45-fold Meso-Pt, respectively. And, also show favorable toxicity resistance to carbonaceous stability for EOR. Furthermore, theoretical calculations demonstrate that core has more optimized deprotonation lower CO adsorption energy, indicating its better