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An Extra‐Large‐Pore Zeolite with 24×8×8‐Ring Channels Using a Structure‐Directing Agent Derived from Traditional Chinese Medicine
Angewandte Chemie International Edition ( IF 16.6 ) Pub Date : 2018-03-22 , DOI: 10.1002/anie.201801386
Chuanqi Zhang 1 , Elina Kapaca 2 , Jiyang Li 3 , Yunling Liu 3 , Xianfeng Yi 4 , Anmin Zheng 4 , Xiaodong Zou 2 , Jiuxing Jiang 1 , Jihong Yu 3
Affiliation  

Extra‐large‐pore zeolites have attracted much interest because of their important applications for processing larger molecules. Although great progress has been made in academic science and industry, it is challenging to synthesize these materials. A new extra‐large‐pore zeolite SYSU‐3 (Sun Yat‐sen University no. 3) has been synthesized by using a novel sophoridine derivative as an organic structure‐directing agent (OSDA). The framework structure was solved and refined using continuous rotation electron diffraction (cRED) data from nanosized crystals. SYSU‐3 exhibits a new zeolite framework topology, which has the first 24×8×8‐ring extra‐large‐pore system and a framework density (FD) as low as 11.4 T/1000 Å3. The unique skeleton of the OSDA plays an essential role in the formation of the distinctive zeolite structure. This work provides a new perspective for developing new zeolitic materials by using alkaloids as cost‐effective OSDAs.

中文翻译:

使用源自中药的结构导向剂的具有24×8×8环通道的特大孔沸石

大孔沸石由于其在加工大分子中的重要应用而引起了人们的极大兴趣。尽管在学术科学和工业上已经取得了很大的进步,但是合成这些材料是具有挑战性的。通过使用新型槐定啶衍生物作为有机结构导向剂(OSDA),合成了一种新型的超大孔径沸石SYSU-3(中山大学第3号)。使用来自纳米级晶体的连续旋转电子衍射(cRED)数据解析和完善了框架结构。SYSU-3显示出一个新的沸石骨架的拓扑结构,它具有第一个24×8×8环超大孔隙系统和骨架密度(FD)低至11.4 T / 1000埃3。OSDA的独特骨架在形成独特的沸石结构中起着至关重要的作用。这项工作通过使用生物碱作为具有成本效益的OSDA,为开发新型沸石材料提供了新的视角。
更新日期:2018-03-22
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