Fe1-xO基氨合成催化剂的高活性和易还原性浅析

• 作 者: 李小年 岑亚青 刘化章
• 机 构: 浙江工业大学催化研究所!浙江省多相催化重点实验室,杭州310014,浙江工业大学催化研究所!浙江省多相催化重点实验室,杭州310014,浙江工业大学催化研究所!浙江省多相催化重点实验室,杭州31001
• 出 处: 催化学报
• 发表日期: 1999年05期
• 关键词: 氧化铁 氨合成催化剂 活性 还原性能

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 The weak inhibition role of promoters in Fe 1-x O reduction, the precipitations 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.