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Studies on Indian Ocean Manganese Nodules:Part V. Physicochemical Characteristics and Catalytic Activity of Rare Earth Oxide Mixed Manganese Nodules

Authors
Journal
Journal of Colloid and Interface Science
0021-9797
Publisher
Elsevier
Publication Date
Volume
183
Issue
2
Identifiers
DOI: 10.1006/jcis.1996.0559
Keywords
  • Manganese Nodules
  • Carbon Monoxide Oxidation
  • Hydrogen Peroxide Decomposition
  • Perovskite
  • Lanthanide Oxides

Abstract

Abstract A series of rare earth oxide mixed manganese nodules (perovskite type mixed oxides) have been prepared by coprecipitation method followed by calcination at 900°C and characterized by different techniques. The effect of rare earth ions on the surface, textural and catalytic activity for the oxidation of CO, and decomposition of H 2O 2have been discussed. The activity for CO oxidation followed an order: Pr ≥ La > Nd > Yb > Dy > Tb > Sm > Tm > Gd > Eu > Ce.

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