CATALYST FOR EXHAUST EMISSION CONTROL AND METHOD FOR PRODUCING THE SAME
摘要
An exhaust emission control catalyst having superior NOx cleaning capability has theta and alpha phases and is constituted by modified alumina having an alpha ratio R represented by 0.5 % </= R </= 95 % and a catalytic metal carried on the modified alumina such as platinum Pt. In addition, a catalyst constituted by the above catalyst as a catalytic element and aluminosilicate or CeO2 also has a superior NOx cleaning capability.
