Abstract
The physico-chemical and catalytic properties of MO−ZrO2 systems (where M is Ca, Sr, Ba) have been studied as a function of the synthesis parameters. Finely powdered heterogeneous mixtures of solid solutions with cubic+monoclinic or tetragonal+monoclinic phase composition were found to be formed. These systems possess quite good high-temperature activity in the reaction of NOx selective reduction by propane under oxygen excess. For a given system, the rate constant depends linearly upon the M−O bond dissociation energy in the surface layer, the slope being positive for Ca and Sr and negative for Ba.
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Ivanova, A.S., Alikina, G.M., Solovyova, L.P. et al. MO−ZrO2 catalysts for nitrogen oxides reduction by hydrocarbons in oxygen excess. Preparation and properties. React Kinet Catal Lett 59, 125–133 (1996). https://doi.org/10.1007/BF02068001
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DOI: https://doi.org/10.1007/BF02068001