Enhancement of surface activity in CO oxidation on Pt(110) through spatiotemporal laser actuation

L. Qiao; X. Li; I. G. Kevrekidis; C. Punckt; H. H. Rotermund

doi:10.1103/PhysRevE.77.036214

Enhancement of surface activity in CO oxidation on Pt(110) through spatiotemporal laser actuation

L. Qiao, X. Li, I. G. Kevrekidis, C. Punckt, H. H. Rotermund

Chemical & Biological Engineering

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

We explore the effect of spatiotemporally varying substrate temperature profiles on the dynamics and the resulting reaction rate enhancement of the catalytic oxidation of CO on Pt(110). The catalytic surface is "addressed" by a focused laser beam whose motion is computer controlled. The averaged reaction rate is observed to undergo a characteristic maximum as a function of the speed of this moving laser spot. Experiments as well as modeling are used to explore and rationalize the existence of such an optimal laser speed.

Original language	English (US)
Article number	036214
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	77
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevE.77.036214
State	Published - Mar 21 2008

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Statistical and Nonlinear Physics
Statistics and Probability

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10.1103/PhysRevE.77.036214

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AU - Rotermund, H. H.

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Enhancement of surface activity in CO oxidation on Pt(110) through spatiotemporal laser actuation

Abstract

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