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Please use this identifier to cite or link to this item: http://dyuthi.cusat.ac.in/purl/2217

Title: Basicity and electron donor properties of lanthanum oxide and its mixed oxides with alumina
Authors: Sugunan, S
Sherly, K B
Science
Keywords: lanthanum oxide
alumina
Issue Date: Aug-1993
Publisher: Indian Journal of Chemistry
Abstract: The electron donating properties of La2O3 activated at 300, 500 and 800·C and its mixed oxides with alumina are reported from the studies on adsorption of electron acceptors of varying electron affinity on La203. The electron acceptors with their electron affinity values given in parenthesis are: 7,7,8,8-tetracyanoquinodimethane (2.84 eV), 2,3,5,6-tetrachloro-I,4-benzoquinone (2.40 eV) and p-dinitrobenzene(l.77eV). The basicity of the oxide has been determined by titration with n-butylamine and Ho.max values are reported. The limit of electron transfer from the oxide to the electron acceptor is between 2.40 and 1.77 eV. It is observed that La203 promotes the surface electron properties of alumina without changing its limit of electron transfer.
URI: http://dyuthi.cusat.ac.in/purl/2217
Appears in Collections:Dr. Sugunan S

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