Composite Metal-Oxide Nanocatalysts

To incorporate new functionalities, various oxide materials can be composited with metal nanoparticles to form metaloxide nanostructures, which are very promising for a wide range of applications. In this review, we summarize the recent developments in advanced synthesis of structure-diversified coreshell, yolkshell, Janus, and their combined metaloxide nanostructures. We also summarize their representative catalytic applications including organic reduction and oxidation, CO oxidation, CO2 conversion, watergas shift reaction, and water splitting. We discuss recyclable metaloxide nanocatalysts with mesoporous, hollow, or multilayered structures. We highlight perspectives for their challenges ahead and opportunities for their widely used applications in plasmon localization enhanced photocatalysis, artificial enzyme catalysis, and catalytic biomass conversion.