Related Experiment Video
Updated: Aug 7, 2026

Activating Molecules, Ions, and Solid Particles with Acoustic Cavitation
Published on: April 11, 2014
Self-sustained kinetic oscillations in CO oxidation over silica-supported Pt
Per-Anders Carlsson1, Vladimir P Zhdanov, Magnus Skoglundh
1Competence Centre for Catalysis, Chalmers University of Technology, SE-412 96, Göteborg, Sweden. perc@chemeng.chalmers.se
Abstract:
Isothermal self-sustained kinetic oscillations in CO oxidation over silica-supported Pt at near-atmospheric pressure were studied by combined in situ Fourier transform infrared spectroscopy and mass spectrometry. The use of a specially designed reactor and careful choice of the physical properties of the catalyst and reaction conditions made it possible to eliminate diffusion limitations, to determine the maximum CO oxidation rate per Pt site in the purely kinetic regime and to clarify the mechanism of the oscillations. Specifically, our results indicate that during the high reactive periods the reaction mainly occurs on the oxide surface.
Related Concept Videos
Heterogeneous Catalysis
Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate
Oxidation of Alkenes: Syn Dihydroxylation with Osmium Tetraoxide
Oxidative Cleavage of Alkenes: Ozonolysis
Ozone is a symmetrical bent molecule stabilized by a resonance structure.
Redox Equilibria: Overview
Catalysis

