| 摘要 |
[Configuration] A catalyst for continuous synthesis of ammonia using gas containing hydrogen and nitrogen as raw materials is characterized in that a vector supporting a transition metal exhibiting catalytic activity is a two-dimensional electride or a precursor thereof. The two-dimensional electride or the precursor thereof is: MxNyHz (M is one or more types of group 2 metals selected from the group consisting of Mg, Ca, Sr, and Ba; x, y, and z are defined as 1 ≤ x ≤ 11, 1 ≤ y ≤ 8, and 0 ≤ z ≤ 4, respectively; x is an integer; and y and z are not limited to being integers); a metal nitride represented by M3N2 (M being as defined above); or a metal carbide selected from the group consisting of Y2C, Sc2C, Gd2C, Tb2C, Dy2C, Ho2C, and Er2C. Using such catalysts, the nitrogen and hydrogen as raw materials are continuously reacted on the catalyst in an ammonia synthesis reaction device under the following conditions: a reaction temperature of preferably 100 to 600˚C and a reaction pressure of 10 kPa or greater and less than 20 MPa. |
