Dynamics of catalytic reactions on microdesigned surfaces

• Published in: Catalysis today Vol. 70; no. 4; pp. 301 - 310
• Main Authors: Shvartsman, S.Y., Schütz, E., Imbihl, R., Kevrekidis, I.G.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 01-11-2001; Elsevier Science
• Subjects: Catalysis; Catalytic reactions; Chemistry; Composite catalysts; Exact sciences and technology; Fronts; General and physical chemistry; Reaction dynamics; Stability; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Composite catalysts; Stability; 05.45; Fronts; 82.40.C; Reaction dynamics; 82.65.J; Mixed catalyst; Catalytic reaction; Carbon dioxide; Transition metal; Experimental study; Modeling; Titanium Oxides; Chemical reduction; Heterogeneous catalysis; Rhodium; Platinum; Nitric oxide; Platinoid
• ISSN: 0920-5861; 1873-4308
• DOI: 10.1016/S0920-5861(01)00338-8

We report experimental and computational studies of reaction dynamics on Pt/Rh and Pt/TiO
2 microcomposite catalytic surfaces. Reaction fronts initiated at the material interface dominate both steady and dynamic behavior of the composite catalytic material. Our analysis links the transient phenomenon of front initiation to the bifurcations of reaction–diffusion systems with active boundaries.