title: Field-induced CO adsorption and formation of carbonyl waves on gold nanotips.
abstract: We report a study of the adsorption and reaction of CO on a gold nanotip in high electrostatic fields. Field ion microscopy is used to investigate the emergence of a Au-carbonyl wave that is made visible with oxygen as the imaging gas. We set up a simple kinetic model that reproduces the adsorption wave and confirms that the presence of oxygen merely serves as an imaging gas and does not lead to field-induced oxidation of CO.
authors.affiliation: Chemical Physics of Materials,Université Libre de Bruxelles, Code Postal 243, Campus Plaine, B-1050 Brussels, Belgium.
authors.forename: T
authors.initials: T
authors.lastname: Visart de Bocarmé
authors.forename: N
authors.initials: N
authors.lastname: Kruse
authors.forename: P
authors.initials: P
authors.lastname: Gaspard
authors.forename: H J
authors.initials: HJ
authors.lastname: Kreuzer