Using the reduced La(Co,Cu)O3 nanoperovskites as catalyst precursors for CO hydrogenation

Abstract

A series of ground La(Co,Cu)O3 perovskite-type mixed oxides prepared by reactive grinding has been characterized by X-Ray diffraction (XRD), BET, H2-TPR, O2-TPD, and CO disproportionation. All ground samples show a rather high specific surface area and nanometric particles. The solids were pretreated under H2 atmosphere to provide a finely dispersed Co-Cu phase which is active for the hydrogenation of CO. The reduced perovskite precursors produced a mixture of higher alcohols and hydrocarbons from syngas following an ASF distribution.