Electrospun vanadium oxide based submicron diameter fiber catalysts. Part II: Effect of chemical formulation and dopants

Abstract

Abstract The first part of present paper described the synthesis procedure for the preparation of VOx/ZrO2 catalysts with fibrous morphology. In the present contribution, the same procedure is applied for the preparation of multimetallic catalysts, such as V-Mo-O/ZrO2 and V-Nb-O/ZrO2. In all the cases, and in only one step, the multimetallic porous fibers were obtained. The characterization data has shown that the segregation of metal atoms is adequate, avoiding the formation of oxides such as V2O5, Nb2O5 and/or Mo2O3, and the activity under the propane ODH reaction of VOx based catalysts is improved by the addition of Mo.