Ce-based composite oxide catalyst, preparation method, and application

摘要

This patent describes a Ce-based composite oxide catalyst for selective catalytic reduction of nitrogen oxides with ammonia, which comprises Ce oxide and at least one oxide of transition metal except Ce. The Ce-based composite oxide catalyst is prepared by a simple method, which uses non-toxic and harmless raw materials, and it has the following advantages: high catalytic activity, and excellent selectivity for generating nitrogen etc.