The influence of adsorbate--absorbate hydrogen bonding in molecular chemisorption: NH sub 3 , HF, and H sub 2 O on Au(111)

Journal Article · Sun Oct 15 00:00:00 EDT 1989 · Journal of Chemical Physics; (USA)

DOI:https://doi.org/10.1063/1.457606· OSTI ID:5489044

Kay, B D; Lykke, K R; Creighton, J R; Ward, S J ^[1]

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1. Sandia National Laboratories, Albuquerque, New Mexico 87175 (US)

Molecular beam and temperature programmed desorption (TPD) techniques are used to study the low temperature (85 K) adsorption and subsequent thermal desorption of NH{sub 3}, HF, and H{sub 2}O from Au(111). At 85 K the molecular sticking coefficients are near unity and are coverage independent. The TPD spectra are qualitatively different for the various species. Simple hydrogen bonding arguments based on absorbate--absorbate interactions are used to explain the differences in the TPD spectra.

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5489044
• Journal Information: Journal of Chemical Physics; (USA), Vol. 91:8; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
AMMONIA
CHEMISORPTION
GOLD
SORPTIVE PROPERTIES
HYDROFLUORIC ACID
WATER
CHEMICAL BONDS
DESORPTION
LOW TEMPERATURE
CHEMICAL REACTIONS
ELEMENTS
HYDRIDES
HYDROGEN COMPOUNDS
INORGANIC ACIDS
METALS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OXYGEN COMPOUNDS
SEPARATION PROCESSES
SORPTION
SURFACE PROPERTIES
TRANSITION ELEMENTS
400201* - Chemical & Physicochemical Properties