Spatial distribution of N2, O2 and NO molecules desorbing from a [p( 2 × 1) -O + p(2 × 3) -N] Ag(110) surface

Kuniko Moriwaki, Yuji Matsumoto, Masamichi Ikai, Ken Ichi Tanaka

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Temperature-programmed desorption of a [p(2 × 3)-N + p(2 × 1)-O] Ag(110) surface gives simultaneous desorption of N2 and NO at 520 K and the desorption of O2 at 600 K. The STM image showed a competitive array of (Ag4N) rows and (-Ag-O-) strings. N2 is formed by self-recombination of N-atoms, and NO is formed by the reaction of N-atoms with (-Ag-O-) strings. The spatial distribution of NO (520 K) took two maxima, in the normal and ca. 17° off-normal directions, although N2 and O2 desorb only in the normal direction. These two maxima may reflect the reaction of N-atoms with O-atoms at the terminal and inside of the (-Ag-O-) strings.

Original languageEnglish
Pages (from-to)500-506
Number of pages7
JournalChemical Physics Letters
Volume292
Issue number4-6
DOIs
Publication statusPublished - 1998
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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