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Rola nośnika i/lub modyfikatorów w kształtowaniu właściwości katalizatorów złotowych stosowanych w procesach utleniania

Walkowiak Adrian

Wiadomości Chemiczne

2025

[Z] 79, 11-12

943--975

Since the ground-breaking discoveries of Haruta and Hutchings in the 1980s, heterogeneous gold-based catalysts have attracted significant attention due to their outstanding performance in various oxidation reactions under relatively mild conditions. Their catalytic properties, including activity, selectivity, and stability, are strongly influenced by the size, dispersion, morphology, and electronic state of Au nanoparticles, which are in turn governed by the choice of support and the presence of modifiers. Supports play a crucial role not only in stabilizing and dispersing gold nanoparticles but also in shaping metal−support interactions and providing additional active sites (e.g., acidic or basic sites). Modifiers - such as additional metals, nonmetals, or oxoanions - can further tune the electronic and structural properties of gold phase, surface acidity or basicity, and long-term stability. This work provides a comprehensive overview of scientific studies highlighting the role of supports and modifiers in shaping the performance of heterogeneous gold catalysts in oxidation processes.