Site-Specific Iron Substitution in STA-28, a Large Pore Aluminophosphate Zeotype Prepared by Using 1,10-Phenanthrolines as Framework-Bound Templates
Site-Specific Iron Substitution in STA-28, a Large Pore Aluminophosphate Zeotype Prepared by Using 1,10-Phenanthrolines as Framework-Bound Templates
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STA-28（一种使用 1,10-菲咯啉作为框架结合模板制备的大孔铝磷酸盐 Zeotype）中的位点特异性铁取代
DOI：
10.1002/ange.202005558
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发表时间：
2020
影响因子：
--
通讯作者：
Watts A
中科院分区：
文献类型：
--
作者：
Watts A
使用芳香族二胺1，10-菲咯啉及其一些甲基化类似物作为模板制备了AlPO 4沸石型。在每种情况下，两个模板N原子结合到一个特定的框架铝网站，以扩大其协调不寻常的八面体AlO 4 N2环境。此外，使用这种框架结合的模板，Fe原子可以通过直接合成选择性地包含在框架中的该位点处，如通过环形暗场扫描透射电子显微镜和Rietveld细化所证实的。煅烧去除有机分子，得到大孔骨架固体，BET表面积高达540 m2 g − 1，两组垂直的通道相交，形成由12环开口沿沿着所有结晶方向连接的孔隙空间。
An AlPO4zeotype has been prepared using the aromatic diamine 1,10‐phenanthroline and some of its methylated analogues as templates. In each case the two template N atoms bind to a specific framework Al site to expand its coordination to the unusual octahedral AlO4N2environment. Furthermore, using this framework‐bound template, Fe atoms can be included selectively at this site in the framework by direct synthesis, as confirmed by annular dark field scanning transmission electron microscopy and Rietveld refinement. Calcination removes the organic molecules to give large pore framework solids, with BET surface areas up to 540 m2g−1and two perpendicular sets of channels that intersect to give pore space connected by 12‐ring openings along all crystallographic directions.