Ammonia synthesis catalyst, method for producing ammonia synthesis catalyst, and method for synthesizing ammonia

摘要

PROBLEM TO BE SOLVED: To provide an ammonia synthesis catalyst which is excellent in ammonia production activity and enables more efficient synthesis of ammonia. SOLUTION: The composite oxide carrier containing cerium and praseodymium and ruthenium supported on the composite oxide carrier are provided, and the molar ratio of cerium to praseodymium contained in the composite oxide carrier ([cerium]. / [Praceodymium]) is an ammonia synthesis catalyst characterized by being 20/80 to 90/10. [Selection diagram] Fig. 1