Adsorption structure of phenylphosphonic acid on an alumina surface
Result description
The adsorption structure of phenylphosphonic acid (PPOA) on an alumina surface was investigated as a function of exposure and temperature using infrared reflected absorption spectroscopy (IRAS) and a Kelvin probe. At monolayer adsorption, P-O and Phenyl-P bands are observed, which indicate the creation of P-O-Al bonds. The aromatic ring plane is positioned perpendicular to the surface. At multilayer adsorption, P=O and P-OH bands appear in the spectra. The multilayer PPOA film starts to desorb at 400 K.From 400 to 700 K, the IRAS spectra are similar to the monolayer spectrum, indicating that the multilayer structure reverses to the monolayer-like PPOA adlayer by heating. The acid molecules desorb at 700 K.
Keywords
The result's identifiers
Result code in IS VaVaI
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Adsorption structure of phenylphosphonic acid on an alumina surface
Original language description
The adsorption structure of phenylphosphonic acid (PPOA) on an alumina surface was investigated as a function of exposure and temperature using infrared reflected absorption spectroscopy (IRAS) and a Kelvin probe. At monolayer adsorption, P-O and Phenyl-P bands are observed, which indicate the creation of P-O-Al bonds. The aromatic ring plane is positioned perpendicular to the surface. At multilayer adsorption, P=O and P-OH bands appear in the spectra. The multilayer PPOA film starts to desorb at 400 K.From 400 to 700 K, the IRAS spectra are similar to the monolayer spectrum, indicating that the multilayer structure reverses to the monolayer-like PPOA adlayer by heating. The acid molecules desorb at 700 K.
Czech name
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Czech description
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Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
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Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied Surface Science
ISSN
0169-4332
e-ISSN
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Volume of the periodical
256
Issue of the periodical within the volume
13-14
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
4
Pages from-to
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UT code for WoS article
000272342300053
EID of the result in the Scopus database
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Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
BM - Solid-state physics and magnetism
Year of implementation
2009