无溶剂合成SAPO-5沸石中表面活性剂对其片状形貌的控制

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。...

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Bibliographic Details
Published in催化学报 Vol. 36; no. 6; pp. 797 - 800
Main Author 陈鲜 孟祥举 肖丰收
Format Journal Article
LanguageChinese
Published 浙江大学化学系浙江省应用化学重点实验室,浙江杭州,310028 2015
Subjects
AFI结构
无溶剂合成
片状形貌
表面活性剂
表面活性剂
AFI结构
片状形貌
Solvent-free synthesis
Plate-like morphology
无溶剂合成
Surfactant
AFI structure
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ISSN0253-9837
1872-2067
DOI10.1016/S1872-2067(14)60285-0|

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Summary: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。
Bibliography:Xian Chen, Xiangju Meng, Feng-shou Xiao（ Key Lab of Applied Chemistry of Zhejian9 Province, Department of Chemistry, Zhejiang University, Hangzhou 310007, Zhejiang, China）
Solvent-free synthesis;AFI structure;Plate-like morphology;Surfactant
21-1195/O6
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.
ISSN:0253-9837
1872-2067
DOI:10.1016/S1872-2067(14)60285-0|