Gel-combustion synthesis of nanocrystalline spinel catalysts for VOCs elimination
Gel-combustion synthesis (GCS) in self-sustaining mode was used for preparation of mixed oxide with spinel structure AB2O4 (where A = Co, Cu and B = Cr, Co). To support these mixed oxides on CeO2 and ZrO2 powders, the GCS technique in self-propagating mode was developed. The synthesized materials were characterized by IR-spectroscopy, X-ray diffraction and transmission electron microscopy. The GCS preparation leads to the formation of nanocrystalline, single-phase spinel catalysts, which showed high activity in VOCs (hexane) elimination. The best catalytic performance was obtained over copper cobaltite catalyst prepared by GCS from glycerin-chelated precursor.
Journal: Applied Catalysis B: Environmental - Volume 83, Issues 3–4, 23 September 2008, Pages 221–228