title: Promoter-induced reactive phase separation in surface reactions.
abstract: Promoters are adsorbed mobile species which do not directly participate in a catalytic surface reaction, but can influence its rate. Often, they are characterized by strong attractive interactions with one of the reactants. We show that these conditions lead to a Turing instability of the uniform state and to the formation of reaction-induced periodic concentration patterns. Experimentally such patterns are observed in catalytic water formation on a Rh(110) surface in the presence of coadsorbed potassium.
authors.affiliation: Center for Nonlinear Phenomena and Complex Systems, Université Libre de Bruxelles, Campus Plaine, C.P. 231. B-1050 Brussels, Belgium.
authors.forename: Y
authors.initials: Y
authors.lastname: De Decker
authors.forename: H
authors.initials: H
authors.lastname: Marbach
authors.forename: M
authors.initials: M
authors.lastname: Hinz
authors.forename: S
authors.initials: S
authors.lastname: Günther
authors.forename: M
authors.initials: M
authors.lastname: Kiskinova
authors.forename: A S
authors.initials: AS
authors.lastname: Mikhailov
authors.forename: R
authors.initials: R
authors.lastname: Imbihl