The Effect of Metal Ratio and Precipitation Agent on Highly Active Iron-Manganese Mixed Metal Oxide Catalysts for Propane Total Oxidation

Iron-manganese mixed metal oxide catalysts with a range of Fe:Mn ratios were synthesised by co-precipitation using sodium carbonate and evaluated for total propane oxidation. The Fe0.50Mn0.50Ox catalyst was the most active, this due to increased surface area along formation Mn2O3 phase that not present in other catalysts. effect precipitating agent catalyst, investigating preparation (NH4)2CO3, K2CO3, NH4OH, KOH, NaOH. In almost all cases, activity oxidation compared Na2CO3-prepared hydroxide-precipitated generally being more active than carbonates. NH4OH best performing thought be highly defect spinel structure. Results demonstrate can prepared abundant elements, choice is important maximise activity.