Zhu J, Kinne M, Fuhrmann T, Denecke R, Steinrück HP (2003)
Publication Type: Journal article, Original article
Publication year: 2003
Original Authors: Zhu J.F., Kinne M., Fuhrmann T., Denecke R., Steinrück H.-P.
Publisher: Elsevier
Book Volume: 529
Pages Range: 384-396
Journal Issue: 3
DOI: 10.1016/S0039-6028(03)00298-X
High-resolution X-ray photoelectron spectroscopy (XPS) and temperature-programmed XPS at BESSY II have been applied to investigate the adsorption and desorption of NO on a Pt(1 1 1) surface. The coverage and temperature-dependent bonding configurations of NO have been identified from adsorbate O 1s and substrate Pt 4f core-level photoemission spectra, which were collected in situ during NO uptake or heating with data collection times per spectrum between 4 and 7 s. At 110 K, NO molecularly adsorbs on Pt(1 1 1) and sequentially populates three different adsorption sites. Up to coverages of 0.25 ML, only fcc-hollow sites are occupied, leading to the formation of a (2 × 2)-NO adsorbate structure. As coverage increases, in addition on-top sites are populated until at 0.5 ML a (2 × 2)-2NO structure is formed, which also represents the saturation structure at 250 K. Further increasing the coverage at 110 K leads to the occupation of hcp-hollow sites; at saturation, a (2 × 2)-3NO structure is observed with a coverage of 0.75 ML. Upon heating, the desorption of NO from the hcp-hollow sites gives rise to a desorption peak at 190 K. Further heating induces the desorption of on-top NO species starting at 275 K and fcc-hollow NO species starting at 320 K. No dissociation takes place. © 2003 Elsevier Science B.V. All rights reserved.
APA:
Zhu, J., Kinne, M., Fuhrmann, T., Denecke, R., & Steinrück, H.-P. (2003). In situ high-resolution XPS studies on adsorption of NO on Pt(1 1 1). Surface Science, 529(3), 384-396. https://doi.org/10.1016/S0039-6028(03)00298-X
MLA:
Zhu, Junfa, et al. "In situ high-resolution XPS studies on adsorption of NO on Pt(1 1 1)." Surface Science 529.3 (2003): 384-396.
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