Deposition of platinum from Pt(PF 3) 4 on atomically clean platinum surfaces

The surface reactions of Pt(PF 3) 4 on Pt(111) and polycrystalline platinum have been examined under ultra-high vacuum conditions using Auger electron spectroscopy, temperature programmed desorption and secondary ion mass spectrometry techniques. For both surfaces, the dissociation of Pt(PF 3) 4 on...

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Bibliographic Details
Published inChemical physics letters Vol. 200; no. 3; pp. 297 - 302
Main Authors Zhang, Rong, Comita, Paul B.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 04.12.1992
Elsevier Science
Subjects
Chemistry
Exact sciences and technology
General and physical chemistry
Solid-gas interface
Surface physical chemistry
Inorganic adsorbate
Platinum Complexes
Tertiary phosphine
Polycrystal
Organic ligand
Thermodesorption
Secondary ion mass spectrometry
Transition metal
Crystal face
Experimental study
Gas solid adsorption
Platinum
Gas solid interface
Metallic adsorbent
Auger electron spectrometry
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Summary:The surface reactions of Pt(PF 3) 4 on Pt(111) and polycrystalline platinum have been examined under ultra-high vacuum conditions using Auger electron spectroscopy, temperature programmed desorption and secondary ion mass spectrometry techniques. For both surfaces, the dissociation of Pt(PF 3) 4 on platinum takes place below 500 K and gives rise to an intermediate state in which PF 3 is chemisorbed on the platinum surface. On Pt(111) single crystal surface, a condensed state of Pt(PF 3) 4 is observed at 170 K for high coverage dosing. On a polycrystalline Pt surface, a desorption state of the reactant occurs at very high temperature, presumably from a recombination reaction of chemisorbed surface fragments.
ISSN:0009-2614
1873-4448
DOI:10.1016/0009-2614(92)80014-3