A series of Co-Mn-Al mixed oxides with various amount of K was tested for N2O decomposition in the presence of O2, NOx and H2O. An optimum K content of 0.9 wt% was found to achieve a high catalytic activity in the presence of O2 and H2O. Non-modified Co-Mn-Al mixed oxide was the most active catalyst in the presence of O2 and NOx.
A series of Co-Mn-Al mixed oxides with various amount of K was tested for N2O decomposition in the presence of O2, NOx and H2O. An optimum K content of 0.9 wt% was found to achieve a high catalytic activity in the presence of O2 and H2O. Non-modified Co-Mn-Al mixed oxide was the most active catalyst in the presence of O2 and NOx. (en)