Mathematical modeling of reactive phase separation in the system Rh(110)/K/O2 + H2

M. Hinz, S. Günther, H. Marbach, R. Imbihl

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The bistable behavior of the O2 + H2 reaction on Rh(110) is modified by the presence of coadsorbed potassium. Reaction fronts transporting potassium and the development of stationary Turing-like patterns have been observed. A realistic mathematical model is presented which reproduces qualitatively correct and, to a large part, even quantitatively correct the experimental results. Key factors of the model are the strong chemical affinity between coadsorbed oxygen and potassium, a reduced mobility of potassium on the oxygen covered surface, and a strongly reduced reactivity of oxygen toward hydrogen in the presence of coadsorbed potassium.

Original languageEnglish
Pages (from-to)14620-14626
Number of pages7
JournalJournal of Physical Chemistry B
Volume108
Issue number38
DOIs
StatePublished - 23 Sep 2004
Externally publishedYes

Fingerprint

Dive into the research topics of 'Mathematical modeling of reactive phase separation in the system Rh(110)/K/O2 + H2'. Together they form a unique fingerprint.

Cite this