催化学报 ›› 2015, Vol. 36 ›› Issue (6): 797-800.DOI: 10.1016/S1872-2067(14)60285-0

• 快讯 • 上一篇    下一篇

无溶剂合成SAPO-5沸石中表面活性剂对其片状形貌的控制

陈鲜, 孟祥举, 肖丰收   

  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
  • 收稿日期:2014-11-27 修回日期:2014-12-30 出版日期:2015-05-21 发布日期:2015-05-21
  • 通讯作者: 孟祥举,电话: (0571)88273698; 电子信箱: mengxj@zju.edu.cn

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

Xian Chen, Xiangju Meng, Feng-shou Xiao   

  1. Key Lab of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310007, Zhejiang, China
  • Received:2014-11-27 Revised:2014-12-30 Online:2015-05-21 Published:2015-05-21

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.

关键词: 无溶剂合成, AFI结构, 片状形貌, 表面活性剂

Abstract:

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 controllable 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 architecture of AFI, SAPO-5 crystals with unique plate-like morphology are expected to be of great importance in catalytic applications.

Key words: Solvent-free synthesis, AFI structure, Plate-like morphology, Surfactant