Supported iridium catalysts for the total oxidation of short chain alkanes and their mixtures: Influence of the support

Catalytic total oxidation of noxious volatile organic compounds (VOCs) is an important process to remove these from the atmosphere. This first systematic study influence support on activity iridium oxide supported catalysts for VOCs. Iridium titania, ?-alumina, silica and zeolites have been prepared using different calcination temperatures. The short chain alkanes their mixtures has evaluated physicochemical properties characterized by N2 adsorption, XRD, (HR)TEM, EDX, CO-Chemisorption, TPR, XPS Raman spectroscopy. Both temperature nature play role catalytic performance. Silica, ZSM-5 titania are suitable supports IrOx, in contrast with ?-alumina. A strong Lewis acidity turnover frequency found. Additionally, a given support, effect activity. possible size discussed. However, major controlling factor support. Therefore, our results provide guideline towards rational design more active IrOx