Supported catalysts with Ru-M (M = Fe, Co, Ni, Mo) bimetallic active centers for ammonia synthesis
- 化学化工－已发表论文 
Supported Ru-M (M = Fe, Co, Ni, Mo) bimetallic active center catalysts with a potassium promoter for the ammonia synthesis were studied. The results show that the activity of the Ru-Co catalyst is the highest, and the activity of Ru-Mo is the lowest. When the Ru loading decreases by half (from 4 % to 2 %), the Ru-Co catalyst with a Co loading of 2 % is the most valuable and exhibits an activity almost the same as the catalyst with 4 % Ru and 4 % Co. The Ru-Co catalysts with Ru and Co loadings of 2 % supported on Mg-Al complex oxide, MgAl2O4 spinel, and MgO were also studied, and the catalyst supported on MgO calcined at 600 degrees C has the highest activity.