Lendzion-Bielun Zofia, Narkiewicz Urszula, Arabczyk Walerian
Institute of Chemical and Environment Engineering, West Pomeranian University of Technology, Szczecin, Pulaskiego 10, 70-322 Szczecin, Poland.
Materials (Basel). 2013 Jun 10;6(6):2400-2409. doi: 10.3390/ma6062400.
An effect of promoters such as calcium, aluminium, and potassium oxides and also addition of chromium and manganese on the structure of cobalt catalysts was examined. Studies of the catalytic ammonia decomposition over the cobalt catalysts are presented. The studies of the ammonia decomposition were carried out for various ammonia-hydrogen mixtures in which ammonia concentration varied in the range from 10% to 100%. Co(0) catalyst, promoted by oxides of aluminium, calcium, and potassium, showed the highest activity in the ammonia decomposition reaction. Contrary to expectations, it was found that chromium and manganese addition into the catalysts decreased their activity.
研究了钙、铝、钾等氧化物促进剂以及铬和锰的添加对钴催化剂结构的影响。介绍了钴催化剂上催化氨分解的研究。对氨浓度在10%至100%范围内变化的各种氨 - 氢混合物进行了氨分解研究。由铝、钙和钾的氧化物促进的Co(0)催化剂在氨分解反应中表现出最高活性。与预期相反，发现向催化剂中添加铬和锰会降低其活性。
