Unveiling the Synergistic Roles of WO _x in Pt/WO _x /Al ₂ O ₃ Catalysts: How Acidity Modulation and Electronic Promotion Govern the Glycerol Selective Hydrogenolysis to 1,3‐Propanediol

Abstract As a major byproduct of biodiesel production, the selective hydrogenolysis of glycerol into high‐value 1,3‐propanediol (1,3‐PDO) has been brought into focus for sustainable biorefineries. Among various catalytic systems, Pt‐WO x ‐based catalysts have emerged as promising systems owing to their exceptional selectivity toward 1,3‐PDO. In this work, a series of Pt/WO x /Al 2 O 3 catalysts with modulated WO x loadings was synthesized to elucidate the structure‐activity relationships governing Pt‐WO x synergy. Our findings reveal that WO x not only modulates Pt dispersion and generates electron‐deficient Pt sites but also promotes Brönsted acid species generation, and thus collectively enhances the selectivity toward 1,3‐PDO, supported by structural characterization correlated with catalytic performance indicative of a bifunctional mechanism.