Journal of Materials Science

, Volume 28, Issue 17, pp 4811–4815 | Cite as

Acid-base, electron-donating and magnetic properties of Nd2O3 and its mixed oxides with alumina catalysts

  • S. Sugunan
  • G. Devika Rani


The electron donor properties of Nd2O3 activated at 300, 500 and 800°C were investigated through studies on the adsorption of electron acceptors of various electron affinities — 7, 7, 8, 8-tetracyanoquinodimethane (2.84 eV), 2, 3, 5, 6-tetrachloro-1, 4-benzoquinone (2.40 eV), p-dinitrobenzene (1.77 eV), and m-dinitrobenzene (1.26 eV) in solvents acetonitrile and 1, 4-dioxan. The extent of electron transfer during adsorption has been found from magnetic measurements and electronic spectral data. The corresponding data on mixed oxides of neodymium and aluminium are reported for various compositions. The acid-base properties of catalysts were also determined using a set of Hammett indicators.


Magnetic Property Electron Transfer Electron Donor Electron Acceptor Mixed Oxide 
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Copyright information

© Chapman & Hall 1993

Authors and Affiliations

  • S. Sugunan
    • 1
  • G. Devika Rani
    • 1
  1. 1.Department of Applied ChemistryCochin University of Science and TechnologyCochinIndia

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