biostudies-literatureZhang XNational Natural Science Foundation of ChinaNational Natural Science Foundation of China (National Science Foundation of China)530https://www.ebi.ac.uk/biostudies/studies/S-EPMC9892500biostudies-literatureUnknown14(1)Core-shell bimetallic nanocatalysts have attracted long-standing attention in heterogeneous catalysis. Tailoring both the core size and shell thickness to the dedicated geometrical and electronic properties for high catalytic reactivity is important but challenging. Here, taking Au@Pd core-shell catalysts as an example, we disclose by theory that a large size of Au core with a two monolayer of Pd shell is vital to eliminate undesired lattice contractions and ligand destabilizations for optimum benzyl alcohol adsorption. A set of Au@Pd/SiO₂ catalysts with various core sizes and shell thicknesses are precisely fabricated. In the benzyl alcohol oxidation reaction, we find that the activity increases monotonically with the core size but varies nonmontonically with the shell thicknesNature communicationsConjugated dual size effect of core-shell particles synergizes bimetallic catalysis.PMC989250022025205Cao LZhao CJin RLin YGuan QWang HSun ZYu HZhu CWang LLiu XLi SZhang XWei SLu JLi WXfalseConjugated dual size effect of core-shell particles synergizes bimetallic catalysis.Core-shell bimetallic nanocatalysts have attracted long-standing attention in heterogeneous catalysis. Tailoring both the core size and shell thickness to the dedicated geometrical and electronic properties for high catalytic reactivity is important but challenging. Here, taking Au@Pd core-shell catalysts as an example, we disclose by theory that a large size of Au core with a two monolayer of Pd shell is vital to eliminate undesired lattice contractions and ligand destabilizations for optimum benzyl alcohol adsorption. A set of Au@Pd/SiO₂ catalysts with various core sizes and shell thicknesses are precisely fabricated. In the benzyl alcohol oxidation reaction, we find that the activity increases monotonically with the core size but varies nonmontonically with the shell thicknes2023-01-01T00:00:00Z2023 Feb2025-04-26T18:09:10.433Z2025-04-06T15:42:46.576ZS-EPMC98925003672585410.1038/s41467-023-36147-2