Epitaxial and Strong Support Interactions between Pt and LaFeO3 Films Stabilize Pt Dispersion

• Published in: Journal of the American Chemical Society Vol. 142; no. 23; pp. 10373 - 10382
• Main Authors: Mao, Xinyu, Foucher, Alexandre C, Montini, Tiziano, Stach, Eric A, Fornasiero, Paolo, Gorte, Raymond J
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society (ACS) 19.05.2020
• Subjects: Atomic Layer Deposition (ALD); catalysts; catalytic activity; CO oxidation; crystallites; Epitaxial; INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; LaFeO3; MATERIALS SCIENCE; oxidation; platinum; Pt catalyst; transmission electron microscopy; X-ray absorption spectroscopy

The ability to stabilize very small Pt crystallites in supported-metal catalysts following harsh treatments is an important industrial problem. Here, we demonstrate that Pt particles can be maintained in the 1- to 2-nm range following multiple oxidation and reduction cycles at 1073 K when the partic...