Spatiotemporal dynamics of fluctuations in a surface reaction by Karhunen-Loeve decomposition of field emission images

Authors
Suchorski, Y Beben, J Imbihl, R
Citation
Y. Suchorski et al., Spatiotemporal dynamics of fluctuations in a surface reaction by Karhunen-Loeve decomposition of field emission images, SURF SCI, 454, 2000, pp. 331-336
Citations number
14
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
SURFACE SCIENCE
ISSN journal
00396028 → ACNP
Volume
454
Year of publication
2000
Pages
331 - 336
Database
ISI
SICI code
0039-6028(20000520)454:<331:SDOFIA>2.0.ZU;2-F
Abstract
Local fluctuations in the catalytic oxidation reaction of CO are studied wi th field electron microscopy (FEM) in the vicinity of the (110) plane of a [100]-oriented platinum tip. Proper orthogonal decomposition (POD) of the d igitized FEM images is employed to analyze the spatiotemporal dynamics of f luctuations in the mono- and bistable ranges of the reaction. The results a re shown to be in qualitative agreement with a correlation analysis of the local time series. (C) 2000 Elsevier Science B.V. All rights reserved.