Systematic Morphology Changes of Gold Nanoparticles Supported on CeO₂ during CO Oxidation

Abstract

The morphology of gold nanoparticles (GNPs) supported on CeO2 in various partial pressures of CO and O2 is presented; their morphology correlates well with their catalytic activity. Adsorbed CO molecules stabilize the major {111} and {100} facets of GNP polyhedra and dissociation of O2 molecules may occur at the perimeter interface of GNPs and CeO2 supports with the aid of electron irradiation, thus causing rounded morphology of the GNPs (see diagram). Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.