A Cationic Oligomer as an Organic Template for Direct Synthesis of Aluminosilicate ITH Zeolite.,Angewandte Chemie International Edition

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A Cationic Oligomer as an Organic Template for Direct Synthesis of Aluminosilicate ITH Zeolite.
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2020-05-26 , DOI: 10.1002/anie.202003282
Chi Lei ₁ , Zhuoya Dong ₂ , Cristina Martínez ₃ , Joaquín Martínez-Triguero ₃ , Wei Chen ₄ , Qinming Wu ₁ , Xiangju Meng ₁ , Andrei-Nicolae Parvulescu ₅ , Trees De Baerdemaeker ₅ , Ulrich Müller ₅ , Anmin Zheng ₄ , Yanhang Ma ₂ , Weiping Zhang ₆ , Toshiyuki Yokoi ₇ , Bernd Marler ₈ , Dirk E De Vos ₉ , Ute Kolb ₁₀ , Avelino Corma ₃ , Feng-Shou Xiao ₁

Affiliation

Key Laboratory of Applied Chemistry of Zhejiang Province, Zhejiang University, Hangzhou, 310007, P. R. China.
School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210, P. R. China.
Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022, València, Spain.
Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, 430071, P. R. China.
BASF SE, Process Research and Chemical Engineering, 67056, Ludwigshafen, Germany.
State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116012, P. R. China.
Chemical Resources Laboratory, Tokyo Institute of Technology, Yokohama, 226-8503, Japan.
Department of Geology, Mineralogy and Geophysics, Ruhr University Bochum, 44780, Bochum, Germany.
Centre for Membrane Separations, Adsorption, Catalysis, and Spectroscopy for Sustainable Solutions, KU Leuven, Celestijnenlaan 200f, 3001, Leuven, Belgium.
Institute of Inorganic Chemistry and Analytical Chemistry, Johannes Gutenberg University Mainz, 555128, Mainz, Germany.

There are a large number of zeolites, such as ITH, that cannot be prepared in the aluminosilicate form. Now, the successful synthesis of aluminosilicate ITH zeolite using a simple cationic oligomer as an organic template is presented. Key to the success is that the cationic oligomer has a strong complexation ability with aluminum species combined with a structural directing ability for the ITH structure similar to that of the conventional organic template. The aluminosilicate ITH zeolite has very high crystallinity, nanosheet‐like crystal morphology, large surface area, fully four‐coordinated Al species, and abundant acidic sites. Methanol‐to‐propylene (MTP) tests reveal that the Al‐ITH zeolite shows much higher selectivity for propylene and longer lifetime than commercial ZSM‐5. FCC tests show that Al‐ITH zeolite is a good candidate as a shape‐selective FCC additive for enhancing propylene and butylene selectivity.

中文翻译：

阳离子低聚物作为直接合成硅铝酸盐ITH沸石的有机模板。

有大量不能以铝硅酸盐形式制备的沸石，如ITH。现在，提出了使用简单的阳离子低聚物作为有机模板成功合成铝硅酸盐ITH沸石的方法。成功的关键是阳离子低聚物与铝物种具有很强的络合能力，并且与常规有机模板相似，结合了ITH结构的结构导向能力。硅铝酸盐ITH沸石具有很高的结晶度，纳米片状晶体形态，较大的表面积，完全四配位的Al物种和丰富的酸性位点。甲醇制丙烯（MTP）测试表明，与商用ZSM-5相比，Al-ITH沸石对丙烯的选择性更高，寿命更长。

更新日期：2020-05-26

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