Search for adsorption potential energy minima of NO on Pt(9 9 7) at 11 K

N. Tsukahara, K. Mukai, Y. Yamashita, J. Yoshinobu

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    We observed four kinds of adsorbed NO molecules on Pt(9 9 7) at 11 K using infrared reflection absorption spectroscopy (IRAS). The peaks at 1690, 1484 and 1615 cm-1 are assigned to the N-O stretching modes of the on-top site and the hollow site on the terrace and the bridge site at the step, respectively. The 1385 cm-1 peak is observed below ∼70 K. We assign the 1385 cm-1 peak to the hollow site of the (1 1 1) microfacet at the step or the lower-terrace hollow site nearest to the step. By heating, site-to-site hopping to the more stable site occurs and the relative stability of four adsorption sites can be determined.

    Original languageEnglish
    Pages (from-to)3560-3563
    Number of pages4
    JournalSurface Science
    Volume600
    Issue number18
    DOIs
    Publication statusPublished - 2006 Sep 15

    Keywords

    • Adsorption
    • Infrared absorption spectroscopy
    • Nitric monoxide
    • Platinum
    • Step surface

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Surfaces and Interfaces
    • Surfaces, Coatings and Films
    • Materials Chemistry

    Fingerprint Dive into the research topics of 'Search for adsorption potential energy minima of NO on Pt(9 9 7) at 11 K'. Together they form a unique fingerprint.

    Cite this