| 摘要 |
PURPOSE:To selectively adsorb and decompose NO2 in an exhaust gas by carrying 2-15wt.% of a mixture of nickel and magnesium oxides in a proportion by molar ratio of 1:1 on the surface of an inorg. heat-resisting material such as alumina, etc., and forming the catalyst. CONSTITUTION:The titled catalyst is formed by carrying 2-15wt.% of the mixture of nickel and magnesium oxides in the proportion by molar ratio of 1:1 on the inorg. heat-resisting material such as alumina, silica, cordierite, etc. When NO2 is adsorbed on the catalyst, the electron is apt to flow into the NO2 molecule from nickel carried on the catalyst due to the basic effect of magnesium. The NO2 becomes unstable thereby and decomposes to NO. Besides, due to basic effect, the NO of its own is not oxidized with oxygen coexisting together and exhausted as it is. |
