Surface phase transitions of Pt(110) studied by desorption dynamics of product CO2 in steady-state CO oxidation

Izabela Irena Rzeznicka, L. Morales De La Garza, T. Matsushima

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Angular distributions of desorbing CO2 and the surface structure transformation of (1X2) into (1X1) on Pt(110) in the course of CO oxidation were studied through the analysis of both AR product measurements and LEED intensity. It was found that CO2 is highly formed on the declining (111) terraces of (1X2) domains, except for high CO pressure above the site switching. The productivity of CO2 per unit area of (1X2) domains increased more than ten times in the inhibited region. Furthermore, the switching observed from angular distribution changes was sensitive to the disappearance of (1X2) domains.

Original languageEnglish
Pages (from-to)1475-1480
Number of pages6
JournalJournal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
Volume20
Issue number4
DOIs
Publication statusPublished - 2002 Jul
Externally publishedYes

Fingerprint

Angular distribution
Carbon Monoxide
Desorption
Phase transitions
desorption
Oxidation
oxidation
angular distribution
products
Surface structure
Productivity
productivity

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Surfaces and Interfaces
  • Physics and Astronomy (miscellaneous)

Cite this

Surface phase transitions of Pt(110) studied by desorption dynamics of product CO2 in steady-state CO oxidation. / Rzeznicka, Izabela Irena; De La Garza, L. Morales; Matsushima, T.

In: Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films, Vol. 20, No. 4, 07.2002, p. 1475-1480.

Research output: Contribution to journalArticle

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