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通过旋转水热合成路线加速AlPO - 5的高效结晶。

Highly efficient crystallization of AlPO-5 accelerated by a rotating hydrothermal synthesis route.

作者信息

Xia Kun, He Zhechao, Zhou Dan, Lu Xinhuan, Xia Qinghua

机构信息

Ministry-of-Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University Wuhan 430062 China

出版信息

RSC Adv. 2019 Aug 5;9(42):24171-24174. doi: 10.1039/c9ra04842a. eCollection 2019 Aug 2.

DOI:10.1039/c9ra04842a
PMID:35527908
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9069785/
Abstract

Compared with static hydrothermal synthesis, the crystallization rate of an AlPO-5 molecular sieve has been accelerated distinctly by a rotating hydrothermal synthesis route with obviously decreased crystal particle size, which is assumed to be ascribed to the increased nucleation centers, accelerated crystal nucleation and growth processes; five-coordinated Al is dominant in the initial reaction gel, and the assembly from amorphous Al species to long-range ordered crystals is mainly contributed by the conversion from five-coordinated Al to four-coordinated Al.

摘要

与静态水热合成相比，旋转水热合成路线显著加快了AlPO-5分子筛的结晶速率，晶体粒径明显减小，这被认为归因于成核中心增加、晶体成核和生长过程加快；在初始反应凝胶中，五配位铝占主导地位，从无定形铝物种到长程有序晶体的组装主要是由五配位铝向四配位铝的转变所致。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4016/9069785/6d5cf65e92df/c9ra04842a-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4016/9069785/1116490f773a/c9ra04842a-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4016/9069785/e2e38096911b/c9ra04842a-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4016/9069785/50ead4c7f5ae/c9ra04842a-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4016/9069785/8d565904d001/c9ra04842a-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4016/9069785/b4932c444a4a/c9ra04842a-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4016/9069785/6d5cf65e92df/c9ra04842a-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4016/9069785/1116490f773a/c9ra04842a-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4016/9069785/e2e38096911b/c9ra04842a-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4016/9069785/50ead4c7f5ae/c9ra04842a-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4016/9069785/8d565904d001/c9ra04842a-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4016/9069785/b4932c444a4a/c9ra04842a-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4016/9069785/6d5cf65e92df/c9ra04842a-f6.jpg

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本文引用的文献

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One-pot rota-crystallized hollownest-structured Ti-zeolite: a calcination-free and recyclable catalytic material.一锅法旋转结晶中空巢状结构钛沸石：一种无需煅烧且可回收的催化材料。
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高对映选择性合成单-/双-/多单元细胞 Ti-HSZ 纳米片高效催化大环烯烃环氧化反应。
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Insights of the Crystallization Process of Molecular Sieve AlPO4-5 Prepared by Solvent-Free Synthesis.无溶剂合成法制备的分子筛 AlPO4-5 的结晶过程研究。
J Am Chem Soc. 2016 May 18;138(19):6171-6. doi: 10.1021/jacs.6b01200. Epub 2016 May 6.
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Accelerated crystallization of zeolites via hydroxyl free radicals.通过羟基自由基促进沸石结晶。
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In situ UV Raman spectroscopic study on the synthesis mechanism of AlPO-5.磷酸铝分子筛（AlPO-5）合成机理的原位紫外拉曼光谱研究
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