无溶剂合成SAPO-5沸石中表面活性剂对其片状形貌的控制（英文）  

Solvent-free synthesis of SAPO-5 zeolite with plate-like morphology in the presence of surfactants

作　　者：陈鲜[1] 孟祥举[1] 肖丰收[1] 

机构地区：[1]浙江大学化学系浙江省应用化学重点实验室,浙江杭州310028

出　　处：《催化学报》2015年第6期797-800,共4页

摘　　要：在表面活性剂如十六烷基三甲基溴化铵(CTAB)的存在下,采用无溶剂法合成出具有片状形貌的SAPO-5沸石晶体.X射线衍射和扫描电镜结果表明,所合成的样品具有很好的结晶度和可控的片状形貌,在合成过程中,CTAB的添加量对其片状形貌特别是片状的厚度的影响很大.考虑到一维的微孔AFI结构独特,具有特殊片状形貌的SAPO-5晶体有望应用于催化方面.SAPO-5 crystals with plate-like morphology were synthesized in the presence of surfactants such as cetyltrimethyl ammonium bromide under solvent-free conditions. X-ray diffraction patterns and scanning electron microscopy images revealed that the samples had high crystallinity and control-lable plate-like morphology. The amount of surfactant added played an important role in controlling the thickness of the zeolite crystals. Considering the unique one-dimensional microporous archi-tecture of AFI, SAPO-5 crystals with unique plate-like morphology are expected to be of great im-portance in catalytic applications.

关 键 词：无溶剂合成 AFI结构 片状形貌 表面活性剂 

分 类 号：O643.36[理学—物理化学]