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Toward the Design of a Hierarchical Perovskite Support: Ultra-Sintering-Resistant Gold Nanocatalysts for CO Oxidation

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journal contribution
posted on 10.04.2017 by Chengcheng Tian, Xiang Zhu, Carter W. Abney, Xiaofei Liu, Guo Shiou Foo, Zili Wu, Meijun Li, Harry M. Meyer, Suree Brown, Shannon M. Mahurin, Sujuan Wu, Shi-Ze Yang, Jingyue Liu, Sheng Dai
An ultrastable Au nanocatalyst based on a heterostructured perovskite support with high surface area and uniform LaFeO3 nanocoatings was successfully synthesized and tested for CO oxidation. Strikingly, small Au nanoparticles (4–6 nm) are obtained after calcination in air at 700 °C and under reaction conditions. The designed Au catalyst not only possessed extreme sintering resistance but also showed high catalytic activity and stability because of the strong interfacial interaction between Au and the heterostructured perovskite support.