Hierarchical SAPO-11 preparation in the presence of glucose
Hierarchical SAPO-11 preparation in the presence of glucose
复制标题
葡萄糖存在下的分级 SAPO-11 制备
DOI：
10.1016/j.matlet.2015.04.067
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发表时间：
2015-09-01
影响因子：
3
通讯作者：
Yan, Zifeng
中科院分区：
文献类型：
--
作者：
Liu, Zhen;Liu, Lingjing;Yan, Zifeng
以葡萄糖为介孔结构导向剂，合成了具有AEL拓扑结构的多级多孔磷酸硅铝分子筛（SAPO-11）。通过X射线衍射（XRD）和N2吸附-脱附分析证实了纳米SAPO-11具有大量的介孔。扫描电子显微镜（SEM）和透射电子显微镜（TEM）的结果表明，层间介观结构是由纳米晶粒聚集形成的。基于能量色散X射线光谱（EDS）和CHNS分析，提出了通过添加葡萄糖来构建中孔的建议机制。(C)2015 Elsevier B. V.版权所有。
Glucose was used as a mesoporous structure directing agent to synthesize hierarchical porous silicoaluminophosphate molecular sieves with AEL topology (SAPO-11). Nanosized SAPO-11 with numerous mesopores were confirmed by X-ray diffraction (XRD) and N-2 adsorption-desorption analysis. Scanning electron microscopy (SEM) and transimission electron microscopy (TEM) are employed to reveal that inter-crystallinic meso-structures were formed from the aggregation of nanosized crystallites. A proposed mesopore construction mechanism by the addition of glucose is presented based on Energy Dispersive X-ray Spectroscopy (EDS) and CHNS analysis. (C) 2015 Elsevier B.V. All rights reserved.