Phase Transformation Processes in Coprecipitated Cu/Zn/Zr Methanol Catalyst Precursors-Insights into Suspension Aging Form Ultrafast Nucleation.

ABSTRACT: Catalyst precursors for methanol synthesis prepared by coprecipitation, such as Cu/Zn-based hydroxycarbonates, are generally formed within two steps. The initial precipitation phase (nucleation) leads to a suspension from which, in a subsequent aging phase, the final solid precursor is formed, thus providing the structural and morphological features required for later use in catalysis. Combing ultrafast continuous nucleation with sampling from batch-wise aging opens up the possibility to follow the evolution and transitions of solid phases during suspension aging. The temporal progression of the existence of the different phases in a Cu/ZnO/ZrO₂-based system is investigated by scanning electron microscopy, X-ray diffraction, and inductive coupled plasma optical emission spectros

SUBMITTER: Warmuth L 

PROVIDER: S-EPMC12435107 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature