水冷却法制备Fe_(1-x)O基氨合成催化剂的电镜研究

SEM Study of Fe_(1-x) O-based Ammonia Synthesis Catalyst Prepared by Rapid Freezing Technique

对所制得的水快速冷却成型高铁比 Fe1 - x O基氨合成催化剂进行了研究 ,发现催化剂晶粒细小 ,助剂的分布明显均匀 ,Fe1 - x O相的歧化作用减小 ,其还原性能保持良好而耐热性能提高 .

Fe 1-x O-based ammonia synthesis catalyst is prepared by rapid freezing technique. It is founded that the catalyst has refining grain,and the distribution of assistant is very homogeneous. The disproportionation of the Fe 1-x O phase is reduced.The heat-resistant property of the catalyst is improved while retaining excellent reductive capacity.