摘要
The more superior activity center produced by the precursor Fe 1- x O is a key factor for high activity of Fe 1- x O based catalyst for ammonia synthesis. The optimum decoration of promoter to the iron active centers is an important way of increasing the activity of Fe 1- x O based catalyst. The weak inhibition role of promoters in Fe 1- x O reduction, the stronger adsorption of hydrogen on the surface of Fe 1- x O and α Fe reduced from Fe 1- x O, the lower content of oxygen and the more ferrous ion defects in the precursor Fe 1- x O are the essential factors for the easier reduction performance of Fe 1- x O based catalyst promoted by multi promoters.
The more superior activity center produced by the precursor Fe 1- x O is a key factor for high activity of Fe 1- x O based catalyst for ammonia synthesis. The optimum decoration of promoter to the iron active centers is an important way of increasing the activity of Fe 1- x O based catalyst. The weak inhibition role of promoters in Fe 1- x O reduction, the stronger adsorption of hydrogen on the surface of Fe 1- x O and α Fe reduced from Fe 1- x O, the lower content of oxygen and the more ferrous ion defects in the precursor Fe 1- x O are the essential factors for the easier reduction performance of Fe 1- x O based catalyst promoted by multi promoters.
出处
《催化学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第5期569-572,共4页
基金
国家自然科学基金
浙江省青年科技人才专项资金
浙江省自然科学基金
关键词
氧化铁
氨合成
催化剂
活性
还原性能
合成氨
iron oxide, ammonia synthesis catalyst, activity, reduction performance
