Abstract
Three aluminas have been characterized by electrophoretic mobilities measurements in polar nonaqueous solvents, differential thermal analysis, and infrared spectroscopy, in order to study the acid-base properties of their surfaces. The solvents were chosen according to the Gutmann donor/acceptor concept to cover a wide range of electron acceptor and electron donor numbers. The electron donor properties of the three alumina surfaces are different and correlate with water desorption and OH abundance as seen by DTA and IR spectroscopy. Conversely, the electron acceptor properties are identical for the three surfaces. These facts are interpreted as results of the presence of electropositive (Al) or electronegative (O) atoms in different quantities at the surface of the oxides.
This is a preview of subscription content, log in via an institution to check access.
References
Gutmann V (1988) The Donor-Acceptor Approach to Molecular Interactions. Plenum, New York
Siffert B, Kuczinski J, Papirer E (1990) J Colloid Interface Sci 135(1):107
Labib, Mohamed E (1984) J Colloid Interface Sci 97(2):356
Labib, Mohamed E “The origin of the surface charge on particles suspended in organic liquids”, no ref.
Author information
Authors and Affiliations
Editor information
Rights and permissions
Copyright information
© 1993 Dr. Dietrich Steinkopff Verlag GmbH & Co. KG
About this paper
Cite this paper
Airiau, M., Lebel, N. (1993). Characterization of the acid-base properties of alumina surfaces. In: Laggner, P., Glatter, O. (eds) Trends in Colloid and Interface Science VII. Progress in Colloid & Polymer Science, vol 93. Steinkopff. https://doi.org/10.1007/BFb0118501
Download citation
DOI: https://doi.org/10.1007/BFb0118501
Published:
Publisher Name: Steinkopff
Print ISBN: 978-3-7985-0955-9
Online ISBN: 978-3-7985-1676-2
eBook Packages: Springer Book Archive