摘要
本文探讨了焙烧温度对催化剂结构及氨氧化活性的影响。得出:La_(0.9)Sr_(0.1)NiO_(3-λ)在1223K后分解,生成具有K_2NiF_4结构的La_2NiO_4相,NiO相和LaNiO_3相。催化活性相主要是具有钙钛矿结构的组分。最佳活性相在1273K形成。
The correlations of the calcination temperature,crystal structure and catalytic activity of La_(0.9)Sr_(0.1)NiO_3 for ammoxidation have been studied.When the calcination temperature is above 1223K, the perovskite structure of La_(0.9)Sr_(0.1)NiO_3 is decomposed into three phases, i.e.La_2NiO_4, LaNiO_3, and NiO. The LaNiO_3 perovskite phase is the most active phase for ammoxidation.The catalyst calcinated at 1273K has the highest activity.
出处
《应用化学》
CAS
CSCD
北大核心
1992年第6期21-25,共5页
Chinese Journal of Applied Chemistry
关键词
氨
氧化
镍系
钙钛矿型
催化剂
La_(0.9)Sr_(0.1)NiO_3, ammoxidation,structure-property relation
