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Raman spectroscopy of aromatic acids adsorbed on oxidised aluminium foil
Luleå tekniska universitet.
Technical University of Budapest.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Sustainable Process Engineering.
1997 (English)In: Journal of Molecular Structure, ISSN 0022-2860, E-ISSN 1872-8014, Vol. 410, p. 183-188Article in journal (Refereed) Published
Abstract [en]

Adsorption of ortho- and para-phthalic acids on oxidised aluminium foil was investigated by Raman and surface-enhanced Raman spectroscopy (SERS). Without any treatment of the foil only a modified method of SERS provided spectroscopic evidence of the adsorption. However, by dissolving the metal aluminium from the Al2O3-Al-Al2O3 structure of the foil, the adsorption could be investigated by Raman spectroscopy without surface-enhanced conditions. The vibrational bands of the adsorbed species, obtained by both types of Raman spectroscopy, are compared to the solid-state spectra of the pure acids and their dipotassium salts. The band shifts suggest that the adsorbed species are essentially in the carboxylate form; however, the Raman and the SER spectra of the same species are not identical indicating a separate chemical reaction occurring at the surface upon depositing the sol. (C) 1997 Elsevier Science B.V.

Place, publisher, year, edition, pages
1997. Vol. 410, p. 183-188
National Category
Physical Chemistry
Research subject
Chemistry of Interfaces
Identifiers
URN: urn:nbn:se:ltu:diva-2948DOI: 10.1016/S0022-2860(96)09692-5ISI: A1997XL06500042Scopus ID: 2-s2.0-12644279855Local ID: 0b087130-1dbd-11dd-8384-000ea68e967bOAI: oai:DiVA.org:ltu-2948DiVA, id: diva2:975802
Note
Godkänd; 1997; 20080509 (bajo)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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Forsling, Willis

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