Przemysl Chemiczny, Vol.94, No.12, 2195-2198, 2015
Preparation of cobalt catalysts promoted with cerium and barium for low-pressure ammonia synthesis
Three series of Ce and Ba-promoted Co catalysts were prepd. by copptn. of Co and Ce carbonates, impregnation with Ba(NO2)(2) and calcination at 500-800 degrees C, and then studied for sp. surface (sorption of N-2 and H-2) and activity in NH3 synthesis. The 1 h long ageing of the copptd. catalyst precursors and their calcination at 500-600 degrees C were recommended for practical use.