摘要
利用高温熔融法制备系列Fe1-xO基催化剂,考察助催化剂对氨合成熔铁催化剂性能的影响。采用阶梯升温还原实验、H2热重实验、低温N2物理吸附和SEM-EDS等表征催化剂活性、还原性、耐热性和物理结构。结果表明,助催化剂M1的掺杂能够提高催化剂活性和耐热性,助催化剂M2的掺杂显著提高催化剂的还原性能。
A series of Fe1-xO based catalysts were prepared by high temperature fusion method. The properties of M1 and M2 doped Fe1-xO based catalysts for ammonia synthesis were investigated. With the help of the experiment of in situ reduction and activity test by step heating, H2 thermogravimetric experiment, low-temperature N2 physical adsorption, SEM-EDS, the influence of promoters M1 and M2 on the activity, reduction behavior, physical phase and the texture of Fe1-x O based catalysts was investigated. The results showed that promoters M1 and M2 obviously improved the activity and reduction properties of the catalyst.
出处
《工业催化》
CAS
2013年第5期41-45,共5页
Industrial Catalysis
