Solid Lewis acid catalysts are commonly used in the synthesis of methyl lactate (MLA). However, water as a solvent, reactant, or by-product adsorbed on the Lewis acid sites (LAS), resulted...
Well-dispersed PdIn bimetallic alloy nanoparticles (1−4 nm) were immobilized on mesostructured silica by an in situ capture-alloying strategy, and PdIn− In 2 O 3 interfaces were rationally constructed by changing the In 2 O 3 loading and reduction temperature. The catalytic performance for benzyl alcohol partial oxidation was evaluated, and a catalytic synergy was observed. The Pd-rich PdIn−In 2 O 3 interface is prone to be formed on the catalyst with a low In 2 O 3 loading after being reduced at 300 °C. It was demonstrated that the Pd-rich PdIn−In 2 O 3 interface was more active for benzyl alcohol partial oxidation than In-rich Pd 2 In 3 species, which was likely to be formed at a high reduction temperature (400 °C). The high catalytic activity on the Pdrich PdIn−In 2 O 3 interface was attributed to the exposure of more Pd-enriched active sites, and an optimized PdIn−In 2 O 3 /Pd assemble ratio enhanced the oxygen transfer during partial oxidation. The density functional theory (DFT) calculation confirmed that the Pd-rich Pd 3 In 1 (111)−In 2 O 3 interface facilitated the activation of oxygen molecules, resulting in high catalytic activity.
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