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Author Sugunan, S. ♦ Malayan, J. J.
Source CUSAT-Thesis
Content type Text
Publisher VSP
File Format PDF
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Chemistry & allied sciences ♦ Technology
Subject Keyword Rare earth oxides ♦ solid acids and bases ♦ surface acidity and basicity ♦ electron-donor properties ♦ metal oxides ♦ heterogeneous catalysts ♦ adhesion
Abstract The electron-donor properties of Sm2O3 activated at 300, 500, and 800°C are reported from studies on the adsorption of electron acceptors of various electron affinities (electron affinity values in eV are given in parentheses): 7,7,8,8-tetracyanoquino-dimethane (2.84), 2,3,5,6-tetrachloro-1,4-benzoquinone (2.40), p-dinitrobenzene (1.77), and m-dinitrobenzene (1.26) in acetonitrile and 1,4-dioxane. The extent of electron transfer during the adsorption was determined from magnetic measurements. The acid-base properties of Sm2O3 at different activation temperatures are reported using a set of Hammett indicators. Electron donor-acceptor interactions at interfaces are important in elucidating the adhesion forces.
Education Level UG and PG
Learning Resource Type Article
Journal Journal of and Technology Volume Number
Volume Number 8
Page Count 8
Starting Page 73
Ending Page 80