| 晶种和溶剂对复合分子筛形成的影响 |
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| 引用本文： | 张强,李春义,山红红,杨朝合. 晶种和溶剂对复合分子筛形成的影响[J]. 燃料化学学报, 2011, 39(10): 787-791 |
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| 作者姓名： | 张强 李春义 山红红 杨朝合 |
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| 作者单位： | State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China), Qingdao 266555, China |
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| 基金项目： | 山东省自然科学基金(ZR2009BQ018) |
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| 摘 要： | 采用包埋法合成ZSM-5/SAPO-5核壳结构复合分子筛，研究了凝胶组成对该材料性能的影响，并利用X射线衍射和扫描电镜等手段对其进行了表征。结果表明，合成的分子筛是以ZSM-5为核，SAPO-5为壳的双结构复合分子筛。通过向凝胶中加入晶种或者调节溶剂性质可以明显改变复合材料的结晶度和颗粒形貌。引入晶种合成材料的颗粒形貌以椭圆型为主，分子筛的结晶度增加；以醇和水混合物为溶剂合成分子筛的颗粒仍以球形为主，分子筛的结晶速率降低，结晶度的最高值降低。
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| 关 键 词： | ZSM-5 SAPO-5 核壳结构 复合分子筛 包埋法 凝胶组成 |
| 收稿时间： | 2010-10-11 |
Effect of seed crystal and solvent on the structure and morphology of ZSM-5/SAPO-5 composite molecular sieves |
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| ZHANG Qiang,LI Chun-yi,SHAN Hong-hong,YANG Chao-he,Qingdao ,China). Effect of seed crystal and solvent on the structure and morphology of ZSM-5/SAPO-5 composite molecular sieves[J]. Journal of Fuel Chemistry and Technology, 2011, 39(10): 787-791 |
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| Authors: | ZHANG Qiang LI Chun-yi SHAN Hong-hong YANG Chao-he Qingdao China) |
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| Affiliation: | ZHANG Qiang,LI Chun-yi,SHAN Hong-hong,YANG Chao-he(State Key Laboratory of Heavy Oil Processing,China University of Petroleum(East China),Qingdao 266555,China) |
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| Abstract: | ZSM-5/SAPO-5 composite molecular sieves of core/shell structure were synthesized by embedding method and characterized by XRD and SEM;the effect of gel composition on their structure and morphology was investigated.The composite molecular sieves synthesized exhibit a binary structure with ZSM-5 as core and SAPO-5 as shell.The crystallinity and particle morphology of the composite molecular sieves are influenced by seed crystal and solvent used during synthesis.Through adding seed crystal,the crystallinity o... |
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| Keywords: | ZSM-5 SAPO-5 core/shell structure composite molecular sieves embedding method gel composition |
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