Studies on Indian Ocean Manganese Nodules
A series of rare earth oxide mixed manganese nodules (perovskite type mixed oxides) have been prepared by coprecipitation method followed by calcination at 900&deg;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 H2O2 have been discussed. The activity for CO oxidation followed an order: Pr >/= La > Nd > Yb > Dy > Tb > Sm > Tm > Gd > Eu > Ce.
Parida
KM
Regional Research Laboratory, Bhubaneswar, Orissa, 751 013, India
Sahoo
AK
Das
NN