晶化温度对SAPO-34结构稳定性的影响  

Effect of Crystallization Temperature on SAPO-34 Structure Stability

作　　者：王利军[1] 赵海涛[2] 郝志显[2] 徐立陆[2] 解丽丽[1] 田震[1] 袁昊[1] 邴乃慈[1] 李庆华[1] 

机构地区：[1]上海第二工业大学城市建设与环境工程学院,上海201209 [2]同济大学化学系,上海200092

出　　处：《化学学报》2008年第11期1317-1321,共5页Acta Chimica Sinica

基　　金：国家自然科学青年基金(No.50503011);上海教委重点基金(No.06ZZ95);上海市“浦江人才计划”(No.05PG14051);上海重点学科(No.P1701)资助项目.

摘　　要：用二乙胺结构导向剂,分别在473和573K水热晶化得到两种SAPO-34分子筛材料.SEM和XRD结果表明,晶化温度升高,SAPO-34晶粒增大,结晶度提高,比表面积和孔径增大.升高晶化温度,提高了样品的最高焙烧和水蒸汽热处理承受温度.Two SAPO-34 samples were hydrothermally synthesized at 473 and 573 K respectively with diethylamine as the structure-director. SEM and XRD results showed that the SAPO-34 crystal size, crystallinity, BET surface area and pore diameter increased with increasing the crystallization temperature. The highest permissible calcination temperature and the highest permissible steam treatment temperature increased with increasing the crystallization temperature.

关 键 词：二乙胺 水热法 SAPO-34 焙烧 水蒸汽热处理 

分 类 号：O643.36[理学—物理化学] TQ424.25[理学—化学]