Preparation and characterization of highly dispersed vanadium oxide catalysts supported on zirconia

Article abstract of DOI:10.1016/0304-5102(90)85017-C

The activity of supported vanadia catalysts depends mainly on the method of preparation, the nature of the support and the dispersion of the active component on the support surface. Considerable efforts have been made to develop methods for determining dispersion of the active component in supported catalysts. These include electron spectroscopy for chemical analysis (ESCA) and low temperature oxygen chemisorption (LTOC). The latter method offers the advantage of being simple, inexpensive and rapid in providing quantitative data for determining the dispersion of the active component in supported catalysts. We report new complementary results obtained by LTOC and their relation to catalytic activity for partial oxidation of methanol by a series of vanadia catalysts supported on zirconia.