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Organosilane surfactant-assisted synthesis of mesoporous SSZ-39 zeolite with enhanced catalytic performance in the methanol-to-olefins reaction

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Frontiers of Chemical Science and Engineering 2020年第2期14卷 267-274页

作者： Hao Xu Chi Lei Qinming Wu Qiuyan Zhu Xiangju Meng Daniel Dai stefan maurer Andrei-Nicolae Parvulescu Ulrich Muller Fengshou Xiao Key Laboratory of Applied Chemistry of Zhejiang Province Department of ChemistryZhejiang UniversityHangzhou 310028China BASF Catalysts(Shanghai)Co. Ltd.Shanghai 201206China BASF SE Ludwigshafen 67056Germany

SSZ-39 zeolite with AEI framework structure is a good catalyst candidate for the methanol-to-olefins(MTO)***,the diffusion limitation and coke formation often results in fast deactivation of the SSZ-39 zeolite *** solution for this challenge is to introduce mesoporosity in the SSZ-39 ***,we report the synthesis of mesoporous SSZ-39 zeolite using an organosilane surfactant,,-dimethyl--(3-(trimethoxysilyl)propyl)octan-1-aminium chloride,as a mesopore template and,-dimethyl--2,6-dimethylpiperidinium as a micropore *** obtained zeolites were characterized by X-ray diffraction,N sorption,scanning electron microscopy,temperature programmed desorption of ammonia,and magic angle spinning nuclear magnetic resonance of *** results show that the mesoporous SSZ-39 zeolite has high crystallinity,meso/microporosity,high surface area,cuboid morphology,and abundant acidic *** importantly,this mesoporous SSZ-39 zeolite exhibits enhanced catalyst lifetime in the MTO reaction due to the presence of mesoporosity for fast mass transfer,compared with a conventional SSZ-39 zeolite without mesoporosity.

关键词： SSZ-39 zeolite mesopores organosilane surfactant MTO reaction soft template mass transfer

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Solvent-Free Synthesis of ITQ-12, ITQ-13, and ITQ-17 Zeolites

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Chinese Journal of Chemistry 2017年第5期35卷 572-576页

作者： Qinming Wu Xiaolong Liu Longfeng Zhu Xiangju Meng Feng Deng Fengtao Fan Zhaochi Feng Can Li stefan maurer Mathias Feyen Ulrich Muller Feng-Shou Xiao Key Lab of Applied Chemistry of Zhejiang Province Department of Chemistry Zhejiang University Hangzhou Zhejiang 310007 China State Key Laboratory of Magnetic Resonance andAtomic and Molecular Physics Wuhan Center for Magnetic Resonance Wuhan Institute of Physics and Mathematics Chinese Academy of Sciences Wuhan Hubei 430071 China College of Biological Chemical Sciences and Engineering Jiaxing University Jiaxing Zhejiang 314001 China State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian Liaoning 116023 China BASF Catalysts (Shanghai) Co. Ltd. 239 Luqiao Road Jinqiao Export Process Zone Pudong New District Shanghai 201206 China Process Research and Chemical Engineering BASF SE 67056 Ludwigshafen Germany

Development of the sustainable routes for synthesis of ITQ-family zeolites is very important because of their unique structures and excellent catalytic and adsorptive *** burden of costly raw materials and low efficiency of synthesis put a strong challenge for their widespread commercial ***,we show an alternative and simple route for synthesis of ITQ-12,ITQ-13,and ITQ-17 zeolites using commercially available organic templates by a facile grinding process of anhydrous starting raw solids,followed by heating at 140-180 ℃.Compared with the conventional hydrothermal synthesis,this approach has obvious advantages such as employment of low-cost organic templates with very high effectiveness,high yield of zeolite products,short crystallization time,and relatively simple *** methodology might open a pathway to synthesize ITQ zeolites with more sustainable manner.

关键词： zeolite sustainable route solvent-free synthesis low-cost organic template ITQ-family

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Composite tissue allotransplantation: opportunities and challenges

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Cellular & Molecular Immunology 2019年第4期16卷 343-349页

作者： Jasper Iske Yeqi Nian Ryoichi Maenosono Max maurer Igor M.Sauer stefan G.Tullius Division of Transplant Surgery Department of SurgeryBrigham and Women’s HospitalHarvard Medical SchoolBostonMAUSA Institute of Transplant Immunology Integrated Research and Treatment Center TransplantationHannover Medical SchoolHannoverLower SaxonyGermany Department of Surgery Charité-Universitätsmedizin BerlinCampus CharitéMitte and Virchow-KlinikumBerlinGermany Einstein-BIH Visiting Fellow Department of SurgeryCharité-Universitätsmedizin BerlinCampus CharitéMitte and Virchow-KlinikumcBerlinGermany

Vascularized composite allotransplants(VCAs)have unique properties because of diverse tissue components transplanted en mass as a single *** addition to surgery,this type of transplant also faces enormous immunological challenges that demand a detailed analysis of all aspects of alloimmune responses,organ preservation,and injury,as well as the immunogenicity of various tissues within the VCA grafts to further improve graft and patient ***,the side effects of long-term immunosuppression for VCA patients need to be carefully balanced with the potential benefit of a non-life-saving *** this review article,we provide a comprehensive update on limb and face transplantation,with a specific emphasis on the alloimmune responses to VCA,established and novel immunosuppressive treatments,and patient outcomes.

关键词： surgery challenges graft

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Linux Universe: Installation and Configuration 3

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1997年

作者： stefan Strobel Rainer maurer stefan Middendorf (auth.)

来源：畅想之星图书光盘版（南... 评论

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欧洲中央银行（ECB）

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城市环境设计 2020年第4期126卷 162-173页

作者：沃尔夫·狄·普瑞克斯 Magdalena Baczkowska Markus Baumann Michael Beckert Johannes Behrens Hilde Benda Marcelo Bernardi Nico Boyer Jan Brosch Timo Carl Anna Rita Cedroni Jasmin Dieterle Sabrina Dlugosch Jan Ruben Fischer Brigitte Fuchs Sergio Gonzales Gesine G?rlich Martin Gruber Guthu Hallstein Sebastian Haffner Simone Hainz Sascha Hempel Rob Henderson Emanuele Iacono Martin Jelinek Rashmi Krishna Jois Ivana Jug Frank Pascal Kaul Matt Kirkham Daniela Kr?hnert Bernward Krone Christian Labud Anke Lammert Monika Lyzyczka Steven M Christian Maeder Dimitra Mamou Ariane Marx Christoph maurer Matthias Niemeyer Martin Oberascher Ross Olson Renate Ott Gerhard Pfeiler Ellen Pietrzyk James Pike Robert Pippan Jakob Przybylo Anna Ptaszynska Stephanie Rathgeber Carmen Renz Salome Reves Donna Riedel Akvile Rimantaite Pete Rose Penelope Rüttimann stefan Rutzinger Oliver Sachse Kristina Schinegger Benjamin Schmidt Marita Schnepper Thomas Siegl Ebru Simsek-Lenk Denise Sokolowski Augustin Solorzano Anja Sorger Andrea St?llenwerk Ernst Stockinger Crystal K.H Tang Jürgen Tiltmann Markus Tritthart Josef Tr?ster Günther Weber Andreas Weissenbach Clemens Werb Judith Werkh?user Markus Wings Eva Wolf Barbara Zeleny Thomas Zengger Zeyneb Badur Fabien Barthelemey Oliver Cassik Alejandro Corena Alexander Daxb?ck Mario Dign?ss Helmut Fr?tscher Annegret Haider Christian Halm Gregor Kassl Gernot K?fer Alexander Laber Anita Lischka Rangel Malinov Oliver Martinz Philipp Munz Barbara Roller Nicole Rumpler Wolfgang Ruthensteiner stefan Salchinger stefan Schadenb?ck Thomas Schwed Hannes Schwed Eckart Schwerdtfeger Sylvia Spernbauer Christoph Treberspurg Johannes Weigl Paul Raftery European Central Bank/RobertMetsch Markus Pillhofer

项目大事记/CHRONOLOGY竞赛/Competition:第一阶段/Phase 1:2003;第二阶段/Phase 2:2003-2004;修改阶段/Revision Phase:2004;优化阶段/Optimization Phase:2005规划设计起始时间/Start of Planning:2005前期工程/Preliminary Site Works:2008主体施工/Main Construction Works:2010竣工/Completion:2014项目参数/PROJECT DATA用地面积/Site Area:120 000m2建筑毛面积/Gross Floor Area:185 000m2

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