1
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Zheng M, Chu Y, Wang Q, Wang Y, Xu J, Deng F. Advanced solid-state NMR spectroscopy and its applications in zeolite chemistry. PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY 2024; 140-141:1-41. [PMID: 38705634 DOI: 10.1016/j.pnmrs.2023.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 11/10/2023] [Accepted: 11/13/2023] [Indexed: 05/07/2024]
Abstract
Solid-state NMR spectroscopy (ssNMR) can provide details about the structure, host-guest/guest-guest interactions and dynamic behavior of materials at atomic length scales. A crucial use of ssNMR is for the characterization of zeolite catalysts that are extensively employed in industrial catalytic processes. This review aims to spotlight the recent advancements in ssNMR spectroscopy and its application to zeolite chemistry. We first review the current ssNMR methods and techniques that are relevant to characterize zeolite catalysts, including advanced multinuclear and multidimensional experiments, in situ NMR techniques and hyperpolarization methods. Of these, the methodology development on half-integer quadrupolar nuclei is emphasized, which represent about two-thirds of stable NMR-active nuclei and are widely present in catalytic materials. Subsequently, we introduce the recent progress in understanding zeolite chemistry with the aid of these ssNMR methods and techniques, with a specific focus on the investigation of zeolite framework structures, zeolite crystallization mechanisms, surface active/acidic sites, host-guest/guest-guest interactions, and catalytic reaction mechanisms.
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Affiliation(s)
- Mingji Zheng
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yueying Chu
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Qiang Wang
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China.
| | - Yongxiang Wang
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun Xu
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China
| | - Feng Deng
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, China.
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2
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Ma C, Liu X, Hong Y, Yan N, Nie C, Wang J, Guo P, Liu Z. Fluoride- and Seed-Free Synthesis of Pure-Silica Zeolite Adsorbent and Matrix Using OSDA-Mismatch Approach. J Am Chem Soc 2023; 145:24191-24201. [PMID: 37877469 DOI: 10.1021/jacs.3c08484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
The pure-silica zeolite plays a crucially important role in the gas separation of alkane/alkene, the low-k dielectric material, and the robust matrix for confining metal species during catalysis. However, the environmentally friendly synthesis of pure-silica zeolites is still challenging since (1) the toxic fluoride or dealuminum seeds are inevitably utilized through the hydrothermal synthesis and (2) it will also take a longer crystallization time. Herein, we present an efficient method called the OSDA-mismatch approach for the fluoride- and seed-free synthesis of pure-silica zeolites using Si-SOD (enriched 4-rings) as the sole silica source. This approach allows for the rapid and green synthesis of 15 pure-silica zeolites (CHA, *BEA, EUO, SFF, STF, -SVR, *-SVY, DOH, MTN, NON, *MRE, MEL, MFI, MTW, and *STO). Furthermore, distinct crystallization mechanisms of two significant pure-silica CHA- and *BEA-type zeolites (denoted as Si-CHA and Si-BEA) are investigated in detail by advanced characterization techniques such as FIB, 3D ED, 4D-STEM, HRTEM, Raman, and 29Si MAS NMR. More importantly, Si-CHA displays promising propane/propylene separation performance even better than the one synthesized in the presence of toxic HF. In addition, the incorporation of Zn species within Si-BEA fabricated by this approach also renders superior performance on propane dehydrogenation.
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Affiliation(s)
- Chao Ma
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- School of Chemistry, Dalian University of Technology, Dalian 116024, Liaoning, China
| | - Xiaona Liu
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
| | - Yang Hong
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Nana Yan
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
| | - Chenyang Nie
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Wang
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
| | - Peng Guo
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhongmin Liu
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- School of Chemistry, Dalian University of Technology, Dalian 116024, Liaoning, China
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3
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Wang Y, Tong C, Liu Q, Han R, Liu C. Intergrowth Zeolites, Synthesis, Characterization, and Catalysis. Chem Rev 2023; 123:11664-11721. [PMID: 37707958 DOI: 10.1021/acs.chemrev.3c00373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
Microporous zeolites that can act as heterogeneous catalysts have continued to attract a great deal of academic and industrial interest, but current progress in their synthesis and application is restricted to single-phase zeolites, severely underestimating the potential of intergrowth frameworks. Compared with single-phase zeolites, intergrowth zeolites possess unique properties, such as different diffusion pathways and molecular confinement, or special crystalline pore environments for binding metal active sites. This review first focuses on the structural features and synthetic details of all the intergrowth zeolites, especially providing some insightful discussion of several potential frameworks. Subsequently, characterization methods for intergrowth zeolites are introduced, and highlighting fundamental features of these crystals. Then, the applications of intergrowth zeolites in several of the most active areas of catalysis are presented, including selective catalytic reduction of NOx by ammonia (NH3-SCR), methanol to olefins (MTO), petrochemicals and refining, fine chemicals production, and biomass conversion on Beta, and the relationship between structure and catalytic activity was profiled from the perspective of intergrowth grain boundary structure. Finally, the synthesis, characterization, and catalysis of intergrowth zeolites are summarized in a comprehensive discussion, and a brief outlook on the current challenges and future directions of intergrowth zeolites is indicated.
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Affiliation(s)
- Yanhua Wang
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
- State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China
| | - Chengzheng Tong
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
- State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China
| | - Qingling Liu
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
- State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China
| | - Rui Han
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
- State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China
| | - Caixia Liu
- Tianjin Key Laboratory of Indoor Air Environmental Quality Control, School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, China
- State Key Laboratory of Engines, Tianjin University, Tianjin 300072, China
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4
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Wang J, Ma C, Liu J, Liu Y, Xu X, Xie M, Wang H, Wang L, Guo P, Liu Z. Pure Silica with Ordered Silanols for Propylene/Propane Adsorptive Separation Unraveled by Three-Dimensional Electron Diffraction. J Am Chem Soc 2023; 145:6853-6860. [PMID: 36939742 DOI: 10.1021/jacs.2c13847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2023]
Abstract
Adsorptive separation of propylene (C3H6) from propane (C3H8), which could deal with energy-intensive cryogenic distillation technologies, remains challenging due to their similar physiochemical properties. Herein, we present a pure silica zeolite with ordered silanols (OSs), whose crystallographic structure was unraveled by the advanced three-dimensional electron diffraction (3D ED), displaying the highly efficient separation of propylene from propane under ambient conditions. The 3D ED technique enables us to investigate its 8-ring pore opening transformation from the round one to the elliptical one during the removal of organic structure-directing agents. Such unique elliptical 8-ring pore openings can exclude larger-size propane and only adsorb propylene. Its C3H6/C3H8 separation performance is also confirmed by column breakthrough experiments, showing a high dynamic adsorption capacity of 53.36 cm3 g-1 for C3H6 but negligible C3H8 under ambient conditions. The dynamic capacity for C3H6 is superior to that of the well-known pure silica DDR-type zeolite (31.07 cm3 g-1). The density functional theory calculation demonstrates that the adsorbed propylene is distributed in the heart-shaped cavity and has a weak interaction with the OSs.
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Affiliation(s)
- Jing Wang
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China
| | - Chao Ma
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiaqi Liu
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd., Nanshan, Shenzhen 518055, China
| | - Yi Liu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Linggong Road 2, Ganjingzi District, Dalian, 116024, China
| | - Xiaoqiu Xu
- College of Science, Institute for Frontier and Interdisciplinary Sciences, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China
| | - Miao Xie
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Hao Wang
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Blvd., Nanshan, Shenzhen 518055, China
| | - Lei Wang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Peng Guo
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhongmin Liu
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, Liaoning, China.,University of Chinese Academy of Sciences, Beijing 100049, China
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5
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Jiao F, Zhang J, Cai X, Li H, Xu Y, Zhao Y, Du H. A fluoride-free siliceous STW-type zeolite synthesized using a designed organic structure-directing agent. Chem Commun (Camb) 2023; 59:1649-1652. [PMID: 36688621 DOI: 10.1039/d2cc05850b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A pure silica STW zeolite is synthesized with no impurities under a wide range of synthesis conditions with and without fluoride by using easily available 1-methyl-1,5-diazabicyclo[4.3.0]non-5-ene (MDBN) as a template. MDBN having an appropriate size and geometry fits well in the STW cage, leading to its high specificity in structure-directing formation of zeolite STW.
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Affiliation(s)
- Feng Jiao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.
| | - Jun Zhang
- School of Materials and Chemical Engineering, Anhui Jianzhu University, Hefei, 230601, China
| | - Xianshu Cai
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.
| | - Hao Li
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.
| | - Yanan Xu
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.
| | - Yue Zhao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.
| | - Hongbin Du
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China.
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6
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Chen YF, Schroeder C, Lew CM, Zones SI, Koller H, Sierka M. Cooperativity of silanol defect chemistry in zeolites. Phys Chem Chem Phys 2022; 25:478-485. [PMID: 36477757 DOI: 10.1039/d2cp05218k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Deboronation treatment of zeolite B-SSZ-55 can generate vacancy defects consisting of four silanol groups (silanol nests). However, 1H solid-state NMR spectroscopy indicates the prevalence of two silanol groups (silanol dyads) instead of four silanol groups. Such silanol dyads must be formed by the silanol condensation of two silanol groups at the silanol nests. Yet, the exact mechanism of this condensation and detailed structure of the silanol defect are not known. Here, the structure and formation mechanism of silanol dyads in the SSZ-55 zeolite have been investigated by both cluster and periodic density functional theory calculations. The calculated 1H NMR chemical shifts agree with the experimental values, showing that the silanol dyads are indeed commonly present at the vacancies and the vacancy density plays a role in the relaxation of the zeolite framework. The nature (size) of the silanol clusters influences their acidity.
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Affiliation(s)
- Ya-Fan Chen
- Friedrich Schiller University Jena, Otto Schott Institute of Materials Research, Löbdergraben 32, 07743 Jena, Germany.
| | - Christian Schroeder
- Institute of Physical Chemistry, University of Münster, Corrensstr. 30, 48149 Münster, Germany
| | | | | | - Hubert Koller
- Institute of Physical Chemistry, University of Münster, Corrensstr. 30, 48149 Münster, Germany
| | - Marek Sierka
- Friedrich Schiller University Jena, Otto Schott Institute of Materials Research, Löbdergraben 32, 07743 Jena, Germany.
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7
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Li J, Mayoral A, Kubota Y, Inagaki S, Yu J, Terasaki O. Direct TEM Observation of Vacancy-Mediated Heteroatom Incorporation into a Zeolite Framework: Towards Microscopic Design of Zeolite Catalysts. Angew Chem Int Ed Engl 2022; 61:e202211196. [PMID: 36194383 PMCID: PMC9827827 DOI: 10.1002/anie.202211196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Indexed: 11/06/2022]
Abstract
Incorporating hetero-metal-atom, e.g., titanium, into zeolite frameworks can enhance the catalytic activity and selectivity in oxidation reactions. However, the rational design of zeolites containing titanium at specific sites is difficult because the precise atomic structure during synthesis process remained unclear. Here, a titanosilicate with predictable titanium distribution was synthesized by mediating vacancies in a defective MSE-type zeolite precursor, based on a pre-designed synthetic route including modification of vacancies followed by titanium insertion, where electron microscopy (EM) plays a key role at each step resolving the atomic structure. Point defects including vacancies in the precursor and titanium incorporated into the vacancy-related positions have been directly observed. The results provide insights into the role of point defects in zeolites towards the rational synthesis of zeolites with desired microscopic arrangement of catalytically active sites.
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Affiliation(s)
- Junyan Li
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryInternational Center of Future ScienceJilin UniversityChangchun130012China,Centre for High-resolution Electron Microscopy (CħEM)School of Physical Science and TechnologyShanghaiTech UniversityShanghai201210China,Shanghai Key Laboratory of High-resolution Electron MicroscopyShanghaiTech UniversityShanghai201210China
| | - Alvaro Mayoral
- Centre for High-resolution Electron Microscopy (CħEM)School of Physical Science and TechnologyShanghaiTech UniversityShanghai201210China,Shanghai Key Laboratory of High-resolution Electron MicroscopyShanghaiTech UniversityShanghai201210China,Instituto de Nanociencia y Materiales de Aragón (INMA)CSIC-Universidad de Zaragoza50009ZaragozaSpain,Laboratorio de Microscopias Avanzadas (LMA)Universidad de Zaragoza50180ZaragozaSpain
| | - Yoshihiro Kubota
- Division of Materials Science and Chemical EngineeringYokohama National University79-5 TokiwadaiHodogaya-ku, Yokohama240-8501Japan
| | - Satoshi Inagaki
- Division of Materials Science and Chemical EngineeringYokohama National University79-5 TokiwadaiHodogaya-ku, Yokohama240-8501Japan
| | - Jihong Yu
- State Key Laboratory of Inorganic Synthesis and Preparative ChemistryCollege of ChemistryInternational Center of Future ScienceJilin UniversityChangchun130012China
| | - Osamu Terasaki
- Centre for High-resolution Electron Microscopy (CħEM)School of Physical Science and TechnologyShanghaiTech UniversityShanghai201210China,Shanghai Key Laboratory of High-resolution Electron MicroscopyShanghaiTech UniversityShanghai201210China
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8
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Wang W, Xu J, Deng F. Recent advances in solid-state NMR of zeolite catalysts. Natl Sci Rev 2022; 9:nwac155. [PMID: 36131885 PMCID: PMC9486922 DOI: 10.1093/nsr/nwac155] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 07/05/2022] [Accepted: 07/17/2022] [Indexed: 11/23/2022] Open
Abstract
Zeolites are important inorganic crystalline microporous materials with a broad range of applications in the areas of catalysis, ion exchange, and adsorption/separations. Solid-state nuclear magnetic resonance (NMR) spectroscopy has proven to be a powerful tool in the study of zeolites and relevant catalytic reactions because of its advantage in providing atomic-level insights into molecular structure and dynamic behavior. In this review, we provide a brief discussion on the recent progress in exploring framework structures, catalytically active sites and intermolecular interactions in zeolites and metal-containing ones by using various solid-state NMR methods. Advances in the mechanistic understanding of zeolite-catalysed reactions including methanol and ethanol conversions are presented as selected examples. Finally, we discuss the prospect of the solid-state NMR technique for its application in zeolites.
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Affiliation(s)
- Weiyu Wang
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences , Wuhan 430071 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Jun Xu
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences , Wuhan 430071 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Feng Deng
- National Center for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences , Wuhan 430071 , China
- University of Chinese Academy of Sciences , Beijing 100049 , China
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9
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Kan X, Xiao S, Zheng Y, Cao Y, Xiao Y, Liu F, Jiang L, Xiao FS. Sustainable synthesis of ordered mesoporous materials without additional solvents. J Colloid Interface Sci 2022; 619:116-122. [DOI: 10.1016/j.jcis.2022.03.100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/10/2022] [Accepted: 03/21/2022] [Indexed: 01/18/2023]
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10
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Lew CM, Chen CY, Long GJ, Grandjean F, Ichimura AS, Xie D, Grosso-Giordano NA, Chakarawet K, Lacheen HS, Jensen KO, Martinez A, Katz A, Zhan BZ, Zones SI. Synthesis, Physicochemical Characterization, and Catalytic Evaluation of Fe 3+-Containing SSZ-70 Zeolite. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Cong-Yan Chen
- Chevron Technical Center, Richmond, California 94801, United States
| | - Gary J. Long
- Missouri University of Science and Technology, University of Missouri, Rolla, Missouri 65409-0010, United States
| | - Fernande Grandjean
- Missouri University of Science and Technology, University of Missouri, Rolla, Missouri 65409-0010, United States
| | - Andrew S. Ichimura
- San Francisco State University, San Francisco, California 94132, United States
| | - Dan Xie
- Chevron Technical Center, Richmond, California 94801, United States
| | | | | | | | - Kurt O. Jensen
- Chevron Technical Center, Richmond, California 94801, United States
| | - Abraham Martinez
- University of California Berkeley, Berkeley, California 94720, United States
| | - Alexander Katz
- University of California Berkeley, Berkeley, California 94720, United States
| | - Bi-Zeng Zhan
- Chevron Technical Center, Richmond, California 94801, United States
| | - Stacey I. Zones
- Chevron Technical Center, Richmond, California 94801, United States
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11
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Roslova M, Cybulskis VJ, Davis ME, Zones SI, Zou X, Xie D. Structure Elucidation and Computationally Guided Synthesis of SSZ‐43: A One‐Dimensional 12‐Ring Zeolite with Unique Sinusoidal Channels. Angew Chem Int Ed Engl 2022; 61:e202115087. [PMID: 35098633 PMCID: PMC9306729 DOI: 10.1002/anie.202115087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Indexed: 11/11/2022]
Abstract
The structure of zeolite SSZ‐43 was determined by 3D electron diffraction, synchrotron X‐ray powder diffraction, and high‐resolution transmission electron microscopy. The SSZ‐43 framework forms one‐dimensional, sinusoidal 12‐ring channels from 5461butterfly units commonly found in other zeolites, but with unique 6.5×6.5 Å apertures and 12‐ring 6.5×8.9 Å windows perpendicular to the channels. SSZ‐43 crystals are intergrowths of two polytypes: ≈90 % orthorhombic polytype A with ABAB stacking of the 12‐rings, and ≈10 % monoclinic polytype B with ABCABC stacking. Molecular modeling performed on the idealized Si‐SSZ‐43 structure along with empirical relationships for zeolite selectivity in boron‐ and aluminum‐containing synthesis gels were used in a combined approach to design new di‐quaternary ammonium organic structure‐directing agents (OSDAs). Experimental trials demonstrated that the new OSDAs produced SSZ‐43 over a broader range of compositions than previous mono‐quaternary OSDAs.
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Affiliation(s)
- Maria Roslova
- Department of Materials and Environmental Chemistry Stockholm University 106 91 Stockholm Sweden
| | - Viktor J. Cybulskis
- Chemical Engineering California Institute of Technology Pasadena CA 91125 USA
| | - Mark E. Davis
- Chemical Engineering California Institute of Technology Pasadena CA 91125 USA
| | - Stacey I. Zones
- Chevron Technical Center 100 Chevron Way Richmond CA 94801 USA
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry Stockholm University 106 91 Stockholm Sweden
| | - Dan Xie
- Chevron Technical Center 100 Chevron Way Richmond CA 94801 USA
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12
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Berkson Z, Bernhardt M, Schlapansky SL, Benedikter MJ, Buchmeiser MR, Price GA, Sunley GJ, Copéret C. Olefin-Surface Interactions: A Key Activity Parameter in Silica-Supported Olefin Metathesis Catalysts. JACS AU 2022; 2:777-786. [PMID: 35373213 PMCID: PMC8969997 DOI: 10.1021/jacsau.2c00052] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/24/2022] [Accepted: 02/24/2022] [Indexed: 06/02/2023]
Abstract
Molecularly defined and classical heterogeneous Mo-based metathesis catalysts are shown to display distinct and unexpected reactivity patterns for the metathesis of long-chain α-olefins at low temperatures (<100 °C). Catalysts based on supported Mo oxo species, whether prepared via wet impregnation or surface organometallic chemistry (SOMC), exhibit strong activity dependencies on the α-olefin chain length, with slower reaction rates for longer substrate chain lengths. In contrast, molecular and supported Mo alkylidenes are highly active and do not display such dramatic dependence on the chain length. State-of-the-art two-dimensional (2D) solid-state nuclear magnetic resonance (NMR) spectroscopy analyses of postmetathesis catalysts, complemented by Fourier transform infrared (FT-IR) spectroscopy and molecular dynamics calculations, evidence that the activity decrease observed for supported Mo oxo catalysts relates to the strong adsorption of internal olefin metathesis products because of interactions with surface Si-OH groups. Overall, this study shows that in addition to the nature and the number of active sites, the metathesis rates and the overall catalytic performance depend on product desorption, even in the liquid phase with nonpolar substrates. This study further highlights the role of the support and active site composition and dynamics on activity as well as the need for considering adsorption in catalyst design.
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Affiliation(s)
- Zachariah
J. Berkson
- Department
of Chemistry and Applied Bioscience, ETH
Zürich, Vladimir-Prelog-Weg 2, Zürich 8093, Switzerland
| | - Moritz Bernhardt
- Department
of Chemistry and Applied Bioscience, ETH
Zürich, Vladimir-Prelog-Weg 2, Zürich 8093, Switzerland
| | - Simon L. Schlapansky
- Department
of Chemistry and Applied Bioscience, ETH
Zürich, Vladimir-Prelog-Weg 2, Zürich 8093, Switzerland
| | - Mathis J. Benedikter
- Institute
of Polymer Chemistry, Universität
Stuttgart, Pfaffenwaldring 55, Stuttgart 70569, Germany
| | - Michael R. Buchmeiser
- Institute
of Polymer Chemistry, Universität
Stuttgart, Pfaffenwaldring 55, Stuttgart 70569, Germany
| | - Gregory A. Price
- Applied
Sciences, BP Innovation & Engineering, BP plc, Saltend, Hull HU12 8DS, U.K.
| | - Glenn J. Sunley
- Applied
Sciences, BP Innovation & Engineering, BP plc, Saltend, Hull HU12 8DS, U.K.
| | - Christophe Copéret
- Department
of Chemistry and Applied Bioscience, ETH
Zürich, Vladimir-Prelog-Weg 2, Zürich 8093, Switzerland
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13
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Roslova M, Cybulskis VJ, Davis ME, Zones SI, Zou X, Xie D. Structure Elucidation and Computationally Guided Synthesis of SSZ‐43: A One‐Dimensional 12‐Ring Zeolite with Unique Sinusoidal Channels. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Maria Roslova
- Department of Materials and Environmental Chemistry Stockholm University 106 91 Stockholm Sweden
| | - Viktor J. Cybulskis
- Chemical Engineering California Institute of Technology Pasadena CA 91125 USA
| | - Mark E. Davis
- Chemical Engineering California Institute of Technology Pasadena CA 91125 USA
| | - Stacey I. Zones
- Chevron Technical Center 100 Chevron Way Richmond CA 94801 USA
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry Stockholm University 106 91 Stockholm Sweden
| | - Dan Xie
- Chevron Technical Center 100 Chevron Way Richmond CA 94801 USA
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14
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He L, Yao Q, Sun M, Ma X. Progress in Preparation and Catalysis of Two-dimensional (2D) and Three-dimensional (3D) Zeolites. ACTA CHIMICA SINICA 2022. [DOI: 10.6023/a21100489] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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15
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16
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Medeiros-Costa IC, Dib E, Nesterenko N, Dath JP, Gilson JP, Mintova S. Silanol defect engineering and healing in zeolites: opportunities to fine-tune their properties and performances. Chem Soc Rev 2021; 50:11156-11179. [PMID: 34605833 DOI: 10.1039/d1cs00395j] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Zeolites have been game-changing materials in oil refining and petrochemistry over the last 60 years and have the potential to play the same role in the emerging processes of the energy and environmental transition. Although zeolites are crystalline inorganic solids, their structures are not perfect and the presence of defect sites - mainly Brønsted acid sites and silanols - influences their thermal and chemical resistance as well as their performances in key areas such as catalysis, gas and liquid separations and ion-exchange. In this paper, we review the type of defects in zeolites and the characterization techniques used for their identification and quantification with the focus on diffraction, spectroscopic and modeling approaches. More specifically, throughout the review, we will focus on silanol (Si-OH) defects located within the micropore structure and/or on the external surface of zeolites. The main approaches applied to engineer and heal defects and their consequences on the properties and applications of zeolites in catalysis and separation processes are highlighted. Finally, the challenges and opportunities of silanol defect engineering in tuning the properties of zeolites to meet the requirements for specific applications are presented.
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Affiliation(s)
- Izabel C Medeiros-Costa
- Laboratoire Catalyse et Spectrochimie (LCS), Normandie University, ENSICAEN, CNRS, 6 boulevard du Marechal Juin, 14050 Caen, France. .,Total Research and Technology Feluy, B-7181 Seneffe, Belgium
| | - Eddy Dib
- Laboratoire Catalyse et Spectrochimie (LCS), Normandie University, ENSICAEN, CNRS, 6 boulevard du Marechal Juin, 14050 Caen, France.
| | | | | | - Jean-Pierre Gilson
- Laboratoire Catalyse et Spectrochimie (LCS), Normandie University, ENSICAEN, CNRS, 6 boulevard du Marechal Juin, 14050 Caen, France.
| | - Svetlana Mintova
- Laboratoire Catalyse et Spectrochimie (LCS), Normandie University, ENSICAEN, CNRS, 6 boulevard du Marechal Juin, 14050 Caen, France.
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17
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Wang Z, Chu W, Zhao Z, Liu Z, Chen H, Xiao D, Gong K, Li F, Li X, Hou G. The Role of Organic and Inorganic Structure-Directing Agents in Selective Al Substitution of Zeolite. J Phys Chem Lett 2021; 12:9398-9406. [PMID: 34553943 DOI: 10.1021/acs.jpclett.1c01448] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Organic and inorganic structure-directing agents (SDAs) impact Al distributions in zeolite, but the insights into how SDAs manipulate Al distribution have not been elucidated yet. Herein, the roles of different SDAs such as cyclohexylamine (CHA), hexamethylenimine (HMI), and Na+ in selective Al substitution of MCM-49 zeolite are investigated comprehensively by multinuclear solid-state NMR. The results demonstrate that MCM-49 synthesized with HMI shows relatively more T6 and T7 Al, while more T2 Al is observed using CHA. The formation of T2 Al in both MCM-49(HMI) and MCM-49(CHA) is derived from Na+, while protonated HMIs show bias in incorporation of T6 and T7 Al. Most HMIs are occluded in protonated status, and about half of CHAs are occluded in nonprotonated status. The close spatial proximity between nonprotonated CHAs and Na+ synergistically promotes the formation of zeolite structure, leading to more Na+ ions occluded in the zeolite channel with preferential T2 Al substitution.
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Affiliation(s)
- Zhili Wang
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weifeng Chu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Zhenchao Zhao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Zhengmao Liu
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongyu Chen
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dong Xiao
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Ke Gong
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fan Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiujie Li
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
| | - Guangjin Hou
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, China
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18
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Kobayashi T, Pruski M. Indirectly Detected DNP-Enhanced 17 O NMR Spectroscopy: Observation of Non-Protonated Near-Surface Oxygen at Naturally Abundant Silica and Silica-Alumina. Chemphyschem 2021; 22:1441-1445. [PMID: 34019318 DOI: 10.1002/cphc.202100290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/20/2021] [Indexed: 11/07/2022]
Abstract
Recent studies have shown that dynamic nuclear polarization (DNP) can be used to detect 17 O solid-state NMR spectra of naturally abundant samples within a reasonable experimental time. Observations using indirect DNP, which relies on 1 H mediation in transferring electron hyperpolarization to 17 O, are currently limited mostly to hydroxyls. Direct DNP schemes can hyperpolarize non-protonated oxygen near the radicals; however, they generally offer much lower signal enhancements. In this study, we demonstrate the detection of signals from non-protonated 17 O in materials containing silicon. The sensitivity boost that made the experiment possible originates from three sources: indirect DNP excitation of 29 Si via protons, indirect detection of 17 O through 29 Si nuclei using two-dimensional 29 Si{17 O} D-HMQC, and Carr-Purcell-Meiboom-Gill refocusing of 29 Si magnetization during acquisition. This 29 Si-detected scheme enabled, for the first time, 2D 17 O-29 Si heteronuclear correlation spectroscopy in mesoporous silica and silica-alumina surfaces at natural abundance. In contrast to the silanols showing motion-averaged 17 O signals, the framework oxygens exhibit unperturbed powder patterns as unambiguous fingerprints of surface sites. Along with hydroxyl oxygens, detection of these moieties will help in gaining more atomistic-scale insights into surface chemistry.
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Affiliation(s)
- Takeshi Kobayashi
- U.S. DOE Ames Laboratory, Iowa State University, Ames, Iowa 50011-3020, United States
| | - Marek Pruski
- U.S. DOE Ames Laboratory, Iowa State University, Ames, Iowa 50011-3020, United States
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19
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Kapaca E, Jiang J, Cho J, Jordá JL, Díaz-Cabañas MJ, Zou X, Corma A, Willhammar T. Synthesis and Structure of a 22 × 12 × 12 Extra-Large Pore Zeolite ITQ-56 Determined by 3D Electron Diffraction. J Am Chem Soc 2021; 143:8713-8719. [PMID: 34077189 PMCID: PMC8213054 DOI: 10.1021/jacs.1c02654] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Indexed: 12/02/2022]
Abstract
A multidimensional extra-large pore germanosilicate, denoted ITQ-56, has been synthesized by using modified memantine as an organic structure-directing agent. ITQ-56 crystallizes as plate-like nanocrystals. Its structure was determined by 3D electron diffraction/MicroED. The structure of ITQ-56 contains extra-large 22-ring channels intersecting with straight 12-ring channels. ITQ-56 is the first zeolite with 22-ring pores, which is a result of ordered vacancies of double 4-ring (d4r) units in a fully connected zeolite framework. The framework density is as low as 12.4 T atoms/1000 Å3. The discovery of the ITQ-56 structure not only fills the missing member of extra-large pore zeolite with 22-ring channels but also creates a new approach of making extra-large pore zeolites by introducing ordered vacancies in zeolite frameworks.
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Affiliation(s)
- Elina Kapaca
- Berzelii
Centre EXSELENT on Porous Materials, Department of Materials and Environmental
Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Jiuxing Jiang
- MOE
Key Laboratory of Bioinorganic and Synthetic Chemistry, School of
Chemistry, Sun Yat-Sen University, Guangzhou 510275, China
| | - Jung Cho
- Berzelii
Centre EXSELENT on Porous Materials, Department of Materials and Environmental
Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - José L. Jordá
- Instituto
de Tecnología Química, Universitat
Politècnica de València-Consejo Superior de Investigaciones
Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - María J. Díaz-Cabañas
- Instituto
de Tecnología Química, Universitat
Politècnica de València-Consejo Superior de Investigaciones
Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Xiaodong Zou
- Berzelii
Centre EXSELENT on Porous Materials, Department of Materials and Environmental
Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Avelino Corma
- Instituto
de Tecnología Química, Universitat
Politècnica de València-Consejo Superior de Investigaciones
Científicas, Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Tom Willhammar
- Berzelii
Centre EXSELENT on Porous Materials, Department of Materials and Environmental
Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
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20
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Grosso‐Giordano NA, Schroeder C, Xu L, Solovyov A, Small DW, Koller H, Zones SI, Katz A. Characterization of a Molecule Partially Confined at the Pore Mouth of a Zeotype. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nicolás A. Grosso‐Giordano
- Department of Chemical and Biomolecular Engineering University of California, Berkeley Berkeley CA 94720 USA
| | - Christian Schroeder
- Institut für Physikalische Chemie Westfälische Wilhelms-Universität Münster Münster Germany
- Center for Soft Nanoscience Univeristy of Münster Busso-Peus-Straße 10 48149 Münster Germany
| | - Le Xu
- Department of Chemical and Biomolecular Engineering University of California, Berkeley Berkeley CA 94720 USA
| | - Andrew Solovyov
- Department of Chemical and Biomolecular Engineering University of California, Berkeley Berkeley CA 94720 USA
| | - David W. Small
- Molecular Graphics and Computation Facility College of Chemistry University of California, Berkeley Berkeley CA 94720 USA
| | - Hubert Koller
- Institut für Physikalische Chemie Westfälische Wilhelms-Universität Münster Münster Germany
- Center for Soft Nanoscience Univeristy of Münster Busso-Peus-Straße 10 48149 Münster Germany
| | | | - Alexander Katz
- Department of Chemical and Biomolecular Engineering University of California, Berkeley Berkeley CA 94720 USA
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21
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Grosso-Giordano NA, Schroeder C, Xu L, Solovyov A, Small DW, Koller H, Zones SI, Katz A. Characterization of a Molecule Partially Confined at the Pore Mouth of a Zeotype. Angew Chem Int Ed Engl 2021; 60:10239-10246. [PMID: 33522703 DOI: 10.1002/anie.202100166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Indexed: 11/12/2022]
Abstract
We investigate the interaction between a molecule and a pore mouth-a critical step in adsorption processes-by characterizing the conformation of a macrocyclic calix[4]arene-TiIV complex, which is grafted on the external surface of a zeotype (*-SVY). X-ray absorption and 13 C{1 H} CPMAS NMR spectroscopies independently detect a unique conformation of this complex when it is grafted at crystallographically equivalent locations that lie at the interface of 7 Å hemispherical microporous cavities and the external surface. Electronic structure calculations support the presence of this unique conformation, and suggest that it is brought about by a specific orientation of the macrocycle that maximizes non-covalent interactions between calix[4]arene upper-rim tert-butyl substituents and the microporous-cavity walls. Our comparative study provides a rare "snapshot" of a molecule partially confined at a pore mouth, an essential intermediate for adsorption into micropores, and demonstrates how surrounding environment controls this confinement in a sensitive fashion.
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Affiliation(s)
- Nicolás A Grosso-Giordano
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Christian Schroeder
- Institut für Physikalische Chemie, Westfälische Wilhelms-Universität Münster, Münster, Germany.,Center for Soft Nanoscience, Univeristy of Münster, Busso-Peus-Straße 10, 48149, Münster, Germany
| | - Le Xu
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Andrew Solovyov
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - David W Small
- Molecular Graphics and Computation Facility, College of Chemistry, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Hubert Koller
- Institut für Physikalische Chemie, Westfälische Wilhelms-Universität Münster, Münster, Germany.,Center for Soft Nanoscience, Univeristy of Münster, Busso-Peus-Straße 10, 48149, Münster, Germany
| | - Stacey I Zones
- Chevron Energy Technology Company, Richmond, CA, 94804, USA
| | - Alexander Katz
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
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22
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Shamzhy M, Gil B, Opanasenko M, Roth WJ, Čejka J. MWW and MFI Frameworks as Model Layered Zeolites: Structures, Transformations, Properties, and Activity. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05332] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mariya Shamzhy
- Department of Physical and Macromolecular Chemistry, Faculty of Sciences, Charles University, Hlavova 8, 128 43 Prague 2, Czech Republic
| | - Barbara Gil
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Maksym Opanasenko
- Department of Physical and Macromolecular Chemistry, Faculty of Sciences, Charles University, Hlavova 8, 128 43 Prague 2, Czech Republic
| | - Wieslaw J. Roth
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Jiří Čejka
- Department of Physical and Macromolecular Chemistry, Faculty of Sciences, Charles University, Hlavova 8, 128 43 Prague 2, Czech Republic
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23
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Xu L, Ma T, Shen Y, Wang Y, Han L, Chaikittisilp W, Yokoi T, Sun J, Wakihara T, Okubo T. Rational Manipulation of Stacking Arrangements in Three-Dimensional Zeolites Built from Two-Dimensional Zeolitic Nanosheets. Angew Chem Int Ed Engl 2020; 59:19934-19939. [PMID: 32720429 DOI: 10.1002/anie.202009336] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Indexed: 11/08/2022]
Abstract
Unit-cell-thin zeolitic nanosheets have emerged as fascinating materials for catalysis and separation. The controllability of nanosheet stacking is extremely challenging in the chemistry of two-dimensional zeolitic materials. To date, the organization of zeolitic nanosheets in hydrothermal synthesis has been limited by the lack of tunable control over the guest-host interactions between organic structure-directing agents (OSDAs) and zeolitic nanosheets. A direct synthetic methodology is reported that enables systematic manipulation of the aluminosilicate MWW-type nanosheet stacking. Variable control of guest-host interactions is rationally achieved by synergistically altering the charge density of OSDAs and synthetic silica-to-alumina composition. These finely controlled interactions allow successful preparation of a series of three-dimensional (3D) zeolites, with MWW-layer stacking in wide ranges from variably disorder to fully ordered, leading to tunable catalytic activity in the cracking reaction. These results highlight unprecedented opportunities to modulate zeolitic nanosheets arrangement in 3D zeolites whose structure can be tailored for catalysis and separation.
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Affiliation(s)
- Le Xu
- Department of Chemical System Engineering, The University of Tokyo, Tokyo, 113-8656, Japan
| | - Tianqiong Ma
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Yihan Shen
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Yong Wang
- Chemical Resources Laboratory, Tokyo Institute of Technology, Yokohama, 226-8503, Japan
| | - Lu Han
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Watcharop Chaikittisilp
- Research and Services Division of Materials Data and Integrated System, National Institute for Materials Sciences (NIMS), Ibaraki, 305-0044, Japan
| | - Toshiyuki Yokoi
- Chemical Resources Laboratory, Tokyo Institute of Technology, Yokohama, 226-8503, Japan
| | - Junliang Sun
- College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
| | - Toru Wakihara
- Department of Chemical System Engineering, The University of Tokyo, Tokyo, 113-8656, Japan
| | - Tatsuya Okubo
- Department of Chemical System Engineering, The University of Tokyo, Tokyo, 113-8656, Japan
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24
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Xu L, Ma T, Shen Y, Wang Y, Han L, Chaikittisilp W, Yokoi T, Sun J, Wakihara T, Okubo T. Rational Manipulation of Stacking Arrangements in Three‐Dimensional Zeolites Built from Two‐Dimensional Zeolitic Nanosheets. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202009336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Le Xu
- Department of Chemical System Engineering The University of Tokyo Tokyo 113-8656 Japan
| | - Tianqiong Ma
- College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Yihan Shen
- College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Yong Wang
- Chemical Resources Laboratory Tokyo Institute of Technology Yokohama 226-8503 Japan
| | - Lu Han
- School of Chemical Science and Engineering Tongji University Shanghai 200092 China
| | - Watcharop Chaikittisilp
- Research and Services Division of Materials Data and Integrated System National Institute for Materials Sciences (NIMS) Ibaraki 305-0044 Japan
| | - Toshiyuki Yokoi
- Chemical Resources Laboratory Tokyo Institute of Technology Yokohama 226-8503 Japan
| | - Junliang Sun
- College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
| | - Toru Wakihara
- Department of Chemical System Engineering The University of Tokyo Tokyo 113-8656 Japan
| | - Tatsuya Okubo
- Department of Chemical System Engineering The University of Tokyo Tokyo 113-8656 Japan
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25
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Li S, Lafon O, Wang W, Wang Q, Wang X, Li Y, Xu J, Deng F. Recent Advances of Solid-State NMR Spectroscopy for Microporous Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2002879. [PMID: 32902037 DOI: 10.1002/adma.202002879] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/29/2020] [Indexed: 05/25/2023]
Abstract
Microporous materials have attracted a rapid growth of research interest in materials science and the multidisciplinary area because of their wide applications in catalysis, separation, ion exchange, gas storage, drug release, and sensing. A fundamental understanding of their diverse structures and properties is crucial for rational design of high-performance materials and technological applications in industry. Solid-state NMR (SSNMR), capable of providing atomic-level information on both structure and dynamics, is a powerful tool in the scientific exploration of solid materials. Here, advanced SSNMR instruments and methods for characterization of microporous materials are briefly described. The recent progress of the application of SSNMR for the investigation of microporous materials including zeolites, metal-organic frameworks, covalent organic frameworks, porous aromatic frameworks, and layered materials is discussed with representative work. The versatile SSNMR techniques provide detailed information on the local structure, dynamics, and chemical processes in the confined space of porous materials. The challenges and prospects in SSNMR study of microporous and related materials are discussed.
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Affiliation(s)
- Shenhui Li
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, Univ. Artois, UMR 8181- UCCS - Unité de Catalyse et Chimie du Solide, Lille, F-59000, France
- Institut Universitaire de France, Paris, 75231, France
| | - Weiyu Wang
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qiang Wang
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xingxing Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
| | - Yi Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, China
- International Center of Future Science, Jilin University, Changchun, 130012, China
| | - Jun Xu
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Feng Deng
- National Centre for Magnetic Resonance in Wuhan, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
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26
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Grzybek J, Kubů M, Roth WJ, Gil B, Čejka J, Kasneryk V. Structural transformation and chemical modifications of the unusual layered zeolite MWW form SSZ-70. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.03.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Kunhi Mohamed A, Moutzouri P, Berruyer P, Walder BJ, Siramanont J, Harris M, Negroni M, Galmarini SC, Parker SC, Scrivener KL, Emsley L, Bowen P. The Atomic-Level Structure of Cementitious Calcium Aluminate Silicate Hydrate. J Am Chem Soc 2020; 142:11060-11071. [PMID: 32406680 DOI: 10.1021/jacs.0c02988] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Despite use of blended cements containing significant amounts of aluminum for over 30 years, the structural nature of aluminum in the main hydration product, calcium aluminate silicate hydrate (C-A-S-H), remains elusive. Using first-principles calculations, we predict that aluminum is incorporated into the bridging sites of the linear silicate chains and that at high Ca:Si and H2O ratios, the stable coordination number of aluminum is six. Specifically, we predict that silicate-bridging [AlO2(OH)4]5- complexes are favored, stabilized by hydroxyl ligands and charge balancing calcium ions in the interlayer space. This structure is then confirmed experimentally by one- and two-dimensional dynamic nuclear polarization enhanced 27Al and 29Si solid-state NMR experiments. We notably assign a narrow 27Al NMR signal at 5 ppm to the silicate-bridging [AlO2(OH)4]5- sites and show that this signal correlates to 29Si NMR signals from silicates in C-A-S-H, conflicting with its conventional assignment to a "third aluminate hydrate" (TAH) phase. We therefore conclude that TAH does not exist. This resolves a long-standing dilemma about the location and nature of the six-fold-coordinated aluminum observed by 27Al NMR in C-A-S-H samples.
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Affiliation(s)
- Aslam Kunhi Mohamed
- Laboratory of Construction Materials, Institut des Matériaux, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.,Institute for Building Materials, Department of Civil, Environmental and Geomatic Engineering, ETH Zürich, CH-8093 Zürich, Switzerland
| | - Pinelopi Moutzouri
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Pierrick Berruyer
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Brennan J Walder
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Jirawan Siramanont
- Laboratory of Construction Materials, Institut des Matériaux, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.,SCG CEMENT Co., Ltd., Saraburi 18260, Thailand
| | - Maya Harris
- Laboratory of Construction Materials, Institut des Matériaux, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Mattia Negroni
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Sandra C Galmarini
- Building Energy Materials and Components, EMPA, CH-8600 Dübendorf, Switzerland
| | - Stephen C Parker
- Computational Solid State Chemistry Group, Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Karen L Scrivener
- Laboratory of Construction Materials, Institut des Matériaux, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Lyndon Emsley
- Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
| | - Paul Bowen
- Laboratory of Construction Materials, Institut des Matériaux, École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland
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28
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Li J, Zhang C, Jiang J, Yu J, Terasaki O, Mayoral A. Structure Solution and Defect Analysis of an Extra-Large Pore Zeolite with UTL Topology by Electron Microscopy. J Phys Chem Lett 2020; 11:3350-3356. [PMID: 32191486 DOI: 10.1021/acs.jpclett.0c00551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Defects within zeolites are crucially important for explaining their physicochemical behavior. The UTL zeolite, with a pillared layer structure, has been widely used in zeolite crystal engineering to assemble new structures from its layered structural units, but a fundamental understanding of its defect is lacking. Here, we report a newly synthesized UTL framework zeolite, UTL-DBU, with a commercially available superbase 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) as a template. Its structure was determined by a combination of three-dimensional electron diffraction tomography and high-resolution (scanning) transmission electron microscopy. Using transmission electron microscopy, two types of defects, stacking disorder and edge dislocation-like planar defect, were discovered. On the basis of the analysis of the electron diffraction and imaging, the layer stacking sequence together with the structural and mathematical models of the microtwinning was successfully built up. Unraveling these defects will provide new insights into the rational design of targeted zeolites utilizing UTL.
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Affiliation(s)
- Junyan Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
- Center for High-resolution Electron Microscopy (CℏEM), School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, P. R. China
| | - Chuanqi Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Jiuxing Jiang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Jihong Yu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, P. R. China
- International Center of Future Science, Jilin University, Changchun 130012, P. R. China
| | - Osamu Terasaki
- Center for High-resolution Electron Microscopy (CℏEM), School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, P. R. China
| | - Alvaro Mayoral
- Center for High-resolution Electron Microscopy (CℏEM), School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, P. R. China
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29
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Schroeder C, Mück-Lichtenfeld C, Xu L, Grosso-Giordano NA, Okrut A, Chen CY, Zones SI, Katz A, Hansen MR, Koller H. A Stable Silanol Triad in the Zeolite Catalyst SSZ-70. Angew Chem Int Ed Engl 2020; 59:10939-10943. [PMID: 32187782 PMCID: PMC7317713 DOI: 10.1002/anie.202001364] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Indexed: 11/13/2022]
Abstract
Nests of three silanol groups are located on the internal pore surface of calcined zeolite SSZ‐70. 2D 1H double/triple‐quantum single‐quantum correlation NMR experiments enable a rigorous identification of these silanol triad nests. They reveal a close proximity to the structure directing agent (SDA), that is, N,N′‐diisobutyl imidazolium cations, in the as‐synthesized material, in which the defects are negatively charged (silanol dyad plus one charged SiO− siloxy group) for charge balance. It is inferred that ring strain prevents the condensation of silanol groups upon calcination and removal of the SDA to avoid energetically unfavorable three‐rings. In contrast, tetrad nests, created by boron extraction from B‐SSZ‐70 at various other locations, are not stable and silanol condensation occurs. Infrared spectroscopic investigations of adsorbed pyridine indicate an enhanced acidity of the silanol triads, suggesting important implications in catalysis.
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Affiliation(s)
- Christian Schroeder
- Institut für Physikalische Chemie, Westfälische Wilhelms-Universität, Corrensstrasse 28/30, 48149, Münster, Germany.,Center of Soft Nanoscience, Westfälische Wilhelms-Universität, Busso-Peus-Strasse 10, 48149, Münster, Germany
| | - Christian Mück-Lichtenfeld
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstrasse 40, 48149, Münster, Germany
| | - Le Xu
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA, 94720, USA
| | - Nicolás A Grosso-Giordano
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA, 94720, USA
| | - Alexander Okrut
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA, 94720, USA
| | - Cong-Yan Chen
- Chevron Energy Technology Company, Richmond, CA, 94804, USA
| | - Stacey I Zones
- Chevron Energy Technology Company, Richmond, CA, 94804, USA
| | - Alexander Katz
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA, 94720, USA
| | - Michael Ryan Hansen
- Institut für Physikalische Chemie, Westfälische Wilhelms-Universität, Corrensstrasse 28/30, 48149, Münster, Germany
| | - Hubert Koller
- Institut für Physikalische Chemie, Westfälische Wilhelms-Universität, Corrensstrasse 28/30, 48149, Münster, Germany.,Center of Soft Nanoscience, Westfälische Wilhelms-Universität, Busso-Peus-Strasse 10, 48149, Münster, Germany
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30
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Schroeder C, Mück‐Lichtenfeld C, Xu L, Grosso‐Giordano NA, Okrut A, Chen C, Zones SI, Katz A, Hansen MR, Koller H. Stabile Silanoltriaden im Zeolithkatalysator SSZ‐70. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001364] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Christian Schroeder
- Institut für Physikalische ChemieWestfälische Wilhelms-Universität Corrensstraße 28/30 48149 Münster Deutschland
- Center of Soft NanoscienceWestfälische Wilhelms-Universität Busso-Peus-Straße 10 48149 Münster Deutschland
| | - Christian Mück‐Lichtenfeld
- Organisch-Chemisches InstitutWestfälische Wilhelms-Universität Corrensstraße 40 48149 Münster Deutschland
| | - Le Xu
- Department of Chemical and Biomolecular EngineeringUniversity of California Berkeley CA 94720 USA
| | | | - Alexander Okrut
- Department of Chemical and Biomolecular EngineeringUniversity of California Berkeley CA 94720 USA
| | - Cong‐Yan Chen
- Chevron Energy Technology Company Richmond CA 94804 USA
| | | | - Alexander Katz
- Department of Chemical and Biomolecular EngineeringUniversity of California Berkeley CA 94720 USA
| | - Michael Ryan Hansen
- Institut für Physikalische ChemieWestfälische Wilhelms-Universität Corrensstraße 28/30 48149 Münster Deutschland
| | - Hubert Koller
- Institut für Physikalische ChemieWestfälische Wilhelms-Universität Corrensstraße 28/30 48149 Münster Deutschland
- Center of Soft NanoscienceWestfälische Wilhelms-Universität Busso-Peus-Straße 10 48149 Münster Deutschland
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31
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Kumar M, Berkson ZJ, Clark RJ, Shen Y, Prisco NA, Zheng Q, Zeng Z, Zheng H, McCusker LB, Palmer JC, Chmelka BF, Rimer JD. Crystallization of Mordenite Platelets using Cooperative Organic Structure-Directing Agents. J Am Chem Soc 2019; 141:20155-20165. [DOI: 10.1021/jacs.9b09697] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Manjesh Kumar
- Department of Chemical and Biomolecular Engineering, University of Houston, 4726 Calhoun Road, Houston, Texas 77204, United States
| | - Zachariah J. Berkson
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - R. John Clark
- Department of Chemical and Biomolecular Engineering, University of Houston, 4726 Calhoun Road, Houston, Texas 77204, United States
| | - Yufeng Shen
- Department of Chemical and Biomolecular Engineering, University of Houston, 4726 Calhoun Road, Houston, Texas 77204, United States
| | - Nathan A. Prisco
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Qi Zheng
- Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
| | - Zhiyuan Zeng
- Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
| | - Haimei Zheng
- Materials Sciences Division, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, United States
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
| | - Lynne B. McCusker
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, United States
- Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 5, CH-8093 Zurich, Switzerland
| | - Jeremy C. Palmer
- Department of Chemical and Biomolecular Engineering, University of Houston, 4726 Calhoun Road, Houston, Texas 77204, United States
| | - Bradley F. Chmelka
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, California 93106, United States
| | - Jeffrey D. Rimer
- Department of Chemical and Biomolecular Engineering, University of Houston, 4726 Calhoun Road, Houston, Texas 77204, United States
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32
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Rankin AGM, Trébosc J, Pourpoint F, Amoureux JP, Lafon O. Recent developments in MAS DNP-NMR of materials. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2019; 101:116-143. [PMID: 31189121 DOI: 10.1016/j.ssnmr.2019.05.009] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 05/21/2019] [Accepted: 05/21/2019] [Indexed: 05/03/2023]
Abstract
Solid-state NMR spectroscopy is a powerful technique for the characterization of the atomic-level structure and dynamics of materials. Nevertheless, the use of this technique is often limited by its lack of sensitivity, which can prevent the observation of surfaces, defects or insensitive isotopes. Dynamic Nuclear Polarization (DNP) has been shown to improve by one to three orders of magnitude the sensitivity of NMR experiments on materials under Magic-Angle Spinning (MAS), at static magnetic field B0 ≥ 5 T, conditions allowing for the acquisition of high-resolution spectra. The field of DNP-NMR spectroscopy of materials has undergone a rapid development in the last ten years, spurred notably by the availability of commercial DNP-NMR systems. We provide here an in-depth overview of MAS DNP-NMR studies of materials at high B0 field. After a historical perspective of DNP of materials, we describe the DNP transfers under MAS, the transport of polarization by spin diffusion and the various contributions to the overall sensitivity of DNP-NMR experiments. We discuss the design of tailored polarizing agents and the sample preparation in the case of materials. We present the DNP-NMR hardware and the influence of key experimental parameters, such as microwave power, magnetic field, temperature and MAS frequency. We give an overview of the isotopes that have been detected by this technique, and the NMR methods that have been combined with DNP. Finally, we show how MAS DNP-NMR has been applied to gain new insights into the structure of organic, hybrid and inorganic materials with applications in fields, such as health, energy, catalysis, optoelectronics etc.
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Affiliation(s)
- Andrew G M Rankin
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - Julien Trébosc
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000, Lille, France; Univ. Lille, CNRS-FR2638, Fédération Chevreul, F-59000 Lille, France
| | - Frédérique Pourpoint
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000, Lille, France
| | - Jean-Paul Amoureux
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000, Lille, France; Bruker Biospin, 34 rue de l'industrie, F-67166, Wissembourg, France
| | - Olivier Lafon
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181, UCCS, Unité de Catalyse et Chimie du Solide, F-59000, Lille, France; Institut Universitaire de France, 1 rue Descartes, F-75231, Paris, France.
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33
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Duong NT, Trébosc J, Lafon O, Amoureux JP. Improved sensitivity and quantification for 29Si NMR experiments on solids using UDEFT (Uniform Driven Equilibrium Fourier Transform). SOLID STATE NUCLEAR MAGNETIC RESONANCE 2019; 100:52-62. [PMID: 30959243 DOI: 10.1016/j.ssnmr.2019.03.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 03/21/2019] [Accepted: 03/21/2019] [Indexed: 06/09/2023]
Abstract
We demonstrate the possibility to use UDEFT (Uniform Driven Equilibrium Fourier Transform) technique in order to improve the sensitivity and the quantification of one-dimensional 29Si NMR experiments under magic-angle spinning (MAS). We derive an analytical expression of the signal-to-noise ratios of UDEFT and single-pulse (SP) experiments subsuming the contributions of transient and steady-state regimes. Using numerical spin dynamics simulations and experiments on 29Si-enriched amorphous silica and borosilicate glass, we show that 59180298059180 refocusing composite π-pulse and the adiabatic inversion using tanh/tan modulation improve the robustness of UDEFT technique to rf-inhomogeneity, offset, and chemical shift anisotropy. These pulses combined with a two-step phase cycle limit the pulse imperfections and the artifacts produced by stimulated echoes. The sensitivity of SP, UDEFT and CPMG (Carr-Purcell-Meiboom-Gill) techniques are experimentally compared on functionalized and non-functionalized mesoporous silica. Furthermore, experiments on a flame retardant material prove that UDEFT technique provides a better quantification of 29Si sites with higher sensitivity than SP method.
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Affiliation(s)
- Nghia Tuan Duong
- Univ. Lille, Centrale Lille, ENSCL, Univ. Artois, CNRS-8181, UCCS - Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France
| | - Julien Trébosc
- Univ. Lille, Centrale Lille, ENSCL, Univ. Artois, CNRS-8181, UCCS - Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France; Univ. Lille, CNRS-FR2638, Fédération Chevreul, F-59000 Lille, France.
| | - Olivier Lafon
- Univ. Lille, Centrale Lille, ENSCL, Univ. Artois, CNRS-8181, UCCS - Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France; Institut Universitaire de France, 1 rue Descartes, F-75231 Paris, France
| | - Jean-Paul Amoureux
- Univ. Lille, Centrale Lille, ENSCL, Univ. Artois, CNRS-8181, UCCS - Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France; Bruker Biospin, 34 rue de l'industrie, F-67166 Wissembourg, France.
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34
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Dynamic Reorganization and Confinement of Ti IV Active Sites Controls Olefin Epoxidation Catalysis on Two-Dimensional Zeotypes. J Am Chem Soc 2019; 141:7090-7106. [PMID: 30955340 DOI: 10.1021/jacs.9b02160] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The effect of dynamic reorganization and confinement of isolated TiIV catalytic centers supported on silicates is investigated for olefin epoxidation. Active sites consist of grafted single-site calix[4]arene-TiIV centers or their calcined counterparts. Their location is synthetically controlled to be either unconfined at terminal T-atom positions (denoted as type-(i)) or within confining 12-MR pockets (denoted as type-(ii); diameter ∼7 Å, volume ∼185 Å3) composed of hemispherical cavities on the external surface of zeotypes with *-SVY topology. Electronic structure calculations (density functional theory) indicate that active sites consist of cooperative assemblies of TiIV centers and silanols. When active sites are located at unconfined type-(i) environments, the rate constants for cyclohexene epoxidation (323 K, 0.05 mM TiIV, 160 mM cyclohexene, 24 mM tert-butyl hydroperoxide) are 9 ± 2 M-2 s-1; whereas within confining type-(ii) 12-MR pockets, there is a ∼5-fold enhancement to 48 ± 8 M-2 s-1. When a mixture of both environments is initially present in the catalyst resting state, the rate constants reflect confining environments exclusively (40 ± 11 M-2 s-1), indicating that dynamic reorganization processes lead to the preferential location of active sites within 12-MR pockets. While activation enthalpies are Δ H‡app = 43 ± 1 kJ mol-1 irrespective of active site location, confining environments exhibit diminished entropic barriers (Δ S‡app = -68 J mol-1 K-1 for unconfined type-(i) vs -56 J mol-1 K-1 for confining type-(ii)), indicating that confinement leads to more facile association of reactants at active sites to form transition state structures (volume ∼ 225 Å3). These results open new opportunities for controlling reactivity on surfaces through partial confinement on shallow external-surface pockets, which are accessible to molecules that are too bulky to benefit from traditional confinement within micropores.
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35
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Berkson ZJ, Hsieh M, Smeets S, Gajan D, Lund A, Lesage A, Xie D, Zones SI, McCusker LB, Baerlocher C, Chmelka BF. Preferential Siting of Aluminum Heteroatoms in the Zeolite Catalyst Al‐SSZ‐70. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201813533] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Zachariah J. Berkson
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
| | - Ming‐Feng Hsieh
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
- Present address: Johnson Matthey Technology Centre Chilton P.O. Box 1, Belasis Avenue Billingham TS23 1LB UK
| | - Stef Smeets
- Laboratory of Crystallography ETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
- Present address: Kavli Institute of Nanoscience Delft University of Technology Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - David Gajan
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon) Université Lyon Centre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Alicia Lund
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon) Université Lyon Centre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Anne Lesage
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon) Université Lyon Centre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Dan Xie
- Chevron Energy Technology Company Richmond CA 94802 USA
| | | | - Lynne B. McCusker
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
- Laboratory of Crystallography ETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
| | - Christian Baerlocher
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
- Laboratory of Crystallography ETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
| | - Bradley F. Chmelka
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
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36
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Berkson ZJ, Hsieh M, Smeets S, Gajan D, Lund A, Lesage A, Xie D, Zones SI, McCusker LB, Baerlocher C, Chmelka BF. Preferential Siting of Aluminum Heteroatoms in the Zeolite Catalyst Al‐SSZ‐70. Angew Chem Int Ed Engl 2019; 58:6255-6259. [DOI: 10.1002/anie.201813533] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Zachariah J. Berkson
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
| | - Ming‐Feng Hsieh
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
- Present address: Johnson Matthey Technology Centre Chilton P.O. Box 1, Belasis Avenue Billingham TS23 1LB UK
| | - Stef Smeets
- Laboratory of Crystallography ETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
- Present address: Kavli Institute of Nanoscience Delft University of Technology Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - David Gajan
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon) Université Lyon Centre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Alicia Lund
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon) Université Lyon Centre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Anne Lesage
- Institut des Sciences Analytiques UMR 5280 (CNRS/Université Lyon 1/ENS Lyon) Université Lyon Centre de RMN à Très Hauts Champs 69100 Villeurbanne France
| | - Dan Xie
- Chevron Energy Technology Company Richmond CA 94802 USA
| | | | - Lynne B. McCusker
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
- Laboratory of Crystallography ETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
| | - Christian Baerlocher
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
- Laboratory of Crystallography ETH Zurich Vladimir-Prelog-Weg 5 8093 Zurich Switzerland
| | - Bradley F. Chmelka
- Department of Chemical Engineering University of California Santa Barbara CA 93106 USA
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37
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Liu X, Mao W, Jiang J, Lu X, Peng M, Xu H, Han L, Che S, Wu P. Topotactic Conversion of Alkali‐Treated Intergrown Germanosilicate CIT‐13 into Single‐Crystalline ECNU‐21 Zeolite as Shape‐Selective Catalyst for Ethylene Oxide Hydration. Chemistry 2019; 25:4520-4529. [DOI: 10.1002/chem.201900173] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Revised: 01/30/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Xue Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University North Zhongshan Road 3663 Shanghai 200062 P.R. China
| | - Wenting Mao
- State Key Laboratory of Metal Matrix CompositesSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University Dongchuan Road 800 Shanghai 200240 P.R. China
| | - Jingang Jiang
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University North Zhongshan Road 3663 Shanghai 200062 P.R. China
| | - Xinqing Lu
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University North Zhongshan Road 3663 Shanghai 200062 P.R. China
| | - Mingming Peng
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University North Zhongshan Road 3663 Shanghai 200062 P.R. China
| | - Hao Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University North Zhongshan Road 3663 Shanghai 200062 P.R. China
| | - Lu Han
- School of Chemical Science and EngineeringTongji University Siping Road 1239 Shanghai 200092 P.R. China
| | - Shun‐ai Che
- State Key Laboratory of Metal Matrix CompositesSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University Dongchuan Road 800 Shanghai 200240 P.R. China
- School of Chemical Science and EngineeringTongji University Siping Road 1239 Shanghai 200092 P.R. China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular EngineeringEast China Normal University North Zhongshan Road 3663 Shanghai 200062 P.R. China
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38
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Schöttle C, Guan E, Okrut A, Grosso-Giordano NA, Palermo A, Solovyov A, Gates BC, Katz A. Bulky Calixarene Ligands Stabilize Supported Iridium Pair-Site Catalysts. J Am Chem Soc 2019; 141:4010-4015. [DOI: 10.1021/jacs.8b13013] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Christian Schöttle
- Department of Chemical and Biomolecular Engineering, University of California at Berkeley, Berkeley, California 94720, United States
| | - Erjia Guan
- Department of Chemical Engineering, University of California at Davis, One Shields Avenue, Davis, California 95616, United States
| | - Alexander Okrut
- Department of Chemical and Biomolecular Engineering, University of California at Berkeley, Berkeley, California 94720, United States
| | - Nicolás A. Grosso-Giordano
- Department of Chemical and Biomolecular Engineering, University of California at Berkeley, Berkeley, California 94720, United States
| | - Andrew Palermo
- Department of Chemical Engineering, University of California at Davis, One Shields Avenue, Davis, California 95616, United States
| | - Andrew Solovyov
- Department of Chemical and Biomolecular Engineering, University of California at Berkeley, Berkeley, California 94720, United States
| | - Bruce C. Gates
- Department of Chemical Engineering, University of California at Davis, One Shields Avenue, Davis, California 95616, United States
| | - Alexander Katz
- Department of Chemical and Biomolecular Engineering, University of California at Berkeley, Berkeley, California 94720, United States
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Li Y, Cao H, Yu J. Toward a New Era of Designed Synthesis of Nanoporous Zeolitic Materials. ACS NANO 2018; 12:4096-4104. [PMID: 29714474 DOI: 10.1021/acsnano.8b02625] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Due to their nanoporous framework structures, zeolites have been widely used as catalysts, adsorbents, and ion exchangers in many industrial fields. Discovering zeolitic materials with new structures and desired functions is one of the most important tasks in the zeolite community. Traditional zeolite discovery relies primarily on low-efficiency trial-and-error processes. So far, many computational and experimental efforts have been devoted to the designed synthesis of zeolitic materials, representing a promising highway toward function-led discovery of nanoporous materials. In particular, the design of structure-directing agents, the design of target zeolites via structure enumeration, and the reorganization of disassembled building layers have led to the discovery of dozens of unprecedented zeolitic structures in the past 5 years. In this Perspective, we briefly discuss these advances and describe the research efforts that are needed in the coming era of function-led zeolite discovery.
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Wan W, Su J, Zou XD, Willhammar T. Transmission electron microscopy as an important tool for characterization of zeolite structures. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00806j] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review presents various TEM techniques including electron diffraction, high-resolution TEM and scanning TEM imaging, and electron tomography and their applications for structure characterization of zeolite materials.
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Affiliation(s)
- W. Wan
- Inorganic and Structural Chemistry
- Department of Materials and Environmental Chemistry
- Stockholm University
- SE-106 91 Stockholm
- Sweden
| | - J. Su
- Inorganic and Structural Chemistry
- Department of Materials and Environmental Chemistry
- Stockholm University
- SE-106 91 Stockholm
- Sweden
| | - X. D. Zou
- Inorganic and Structural Chemistry
- Department of Materials and Environmental Chemistry
- Stockholm University
- SE-106 91 Stockholm
- Sweden
| | - T. Willhammar
- Inorganic and Structural Chemistry
- Department of Materials and Environmental Chemistry
- Stockholm University
- SE-106 91 Stockholm
- Sweden
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Okrut A, Aigner M, Schöttle C, Grosso-Giordano NA, Hwang SJ, Ouyang X, Zones S, Katz A. SSZ-70 borosilicate delamination without sonication: effect of framework topology on olefin epoxidation catalysis. Dalton Trans 2018; 47:15082-15090. [DOI: 10.1039/c8dt03044h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Delamination of layered zeolite precursor B-SSZ-70 succeeds in an aqueous solution of Zn(NO3)2 and Bu4NF without need for sonication.
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Affiliation(s)
- Alexander Okrut
- Department of Chemical and Biomolecular Engineering
- University of California at Berkeley
- Berkeley
- USA
| | - Martina Aigner
- Department of Chemical and Biomolecular Engineering
- University of California at Berkeley
- Berkeley
- USA
| | - Christian Schöttle
- Department of Chemical and Biomolecular Engineering
- University of California at Berkeley
- Berkeley
- USA
| | | | - Son-Jong Hwang
- Division of Chemistry and Chemical Engineering
- California Institute of Technology
- Pasadena
- USA
| | | | | | - Alexander Katz
- Department of Chemical and Biomolecular Engineering
- University of California at Berkeley
- Berkeley
- USA
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