1
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Chizallet C, Bouchy C, Larmier K, Pirngruber G. Molecular Views on Mechanisms of Brønsted Acid-Catalyzed Reactions in Zeolites. Chem Rev 2023; 123:6107-6196. [PMID: 36996355 DOI: 10.1021/acs.chemrev.2c00896] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023]
Abstract
The Brønsted acidity of proton-exchanged zeolites has historically led to the most impactful applications of these materials in heterogeneous catalysis, mainly in the fields of transformations of hydrocarbons and oxygenates. Unravelling the mechanisms at the atomic scale of these transformations has been the object of tremendous efforts in the last decades. Such investigations have extended our fundamental knowledge about the respective roles of acidity and confinement in the catalytic properties of proton exchanged zeolites. The emerging concepts are of general relevance at the crossroad of heterogeneous catalysis and molecular chemistry. In the present review, emphasis is given to molecular views on the mechanism of generic transformations catalyzed by Brønsted acid sites of zeolites, combining the information gained from advanced kinetic analysis, in situ, and operando spectroscopies, and quantum chemistry calculations. After reviewing the current knowledge on the nature of the Brønsted acid sites themselves, and the key parameters in catalysis by zeolites, a focus is made on reactions undergone by alkenes, alkanes, aromatic molecules, alcohols, and polyhydroxy molecules. Elementary events of C-C, C-H, and C-O bond breaking and formation are at the core of these reactions. Outlooks are given to take up the future challenges in the field, aiming at getting ever more accurate views on these mechanisms, and as the ultimate goal, to provide rational tools for the design of improved zeolite-based Brønsted acid catalysts.
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Affiliation(s)
- Céline Chizallet
- IFP Energies nouvelles, Rond-Point de l'Echangeur de Solaize, BP 3, Solaize 69360, France
| | - Christophe Bouchy
- IFP Energies nouvelles, Rond-Point de l'Echangeur de Solaize, BP 3, Solaize 69360, France
| | - Kim Larmier
- IFP Energies nouvelles, Rond-Point de l'Echangeur de Solaize, BP 3, Solaize 69360, France
| | - Gerhard Pirngruber
- IFP Energies nouvelles, Rond-Point de l'Echangeur de Solaize, BP 3, Solaize 69360, France
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2
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Bocus M, Goeminne R, Lamaire A, Cools-Ceuppens M, Verstraelen T, Van Speybroeck V. Nuclear quantum effects on zeolite proton hopping kinetics explored with machine learning potentials and path integral molecular dynamics. Nat Commun 2023; 14:1008. [PMID: 36823162 PMCID: PMC9950054 DOI: 10.1038/s41467-023-36666-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 02/10/2023] [Indexed: 02/25/2023] Open
Abstract
Proton hopping is a key reactive process within zeolite catalysis. However, the accurate determination of its kinetics poses major challenges both for theoreticians and experimentalists. Nuclear quantum effects (NQEs) are known to influence the structure and dynamics of protons, but their rigorous inclusion through the path integral molecular dynamics (PIMD) formalism was so far beyond reach for zeolite catalyzed processes due to the excessive computational cost of evaluating all forces and energies at the Density Functional Theory (DFT) level. Herein, we overcome this limitation by training first a reactive machine learning potential (MLP) that can reproduce with high fidelity the DFT potential energy surface of proton hopping around the first Al coordination sphere in the H-CHA zeolite. The MLP offers an immense computational speedup, enabling us to derive accurate reaction kinetics beyond standard transition state theory for the proton hopping reaction. Overall, more than 0.6 μs of simulation time was needed, which is far beyond reach of any standard DFT approach. NQEs are found to significantly impact the proton hopping kinetics up to ~473 K. Moreover, PIMD simulations with deuterium can be performed without any additional training to compute kinetic isotope effects over a broad range of temperatures.
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Affiliation(s)
- Massimo Bocus
- Center for Molecular Modeling, Ghent University, Technologiepark 46, 9052, Zwijnaarde, Belgium
| | - Ruben Goeminne
- Center for Molecular Modeling, Ghent University, Technologiepark 46, 9052, Zwijnaarde, Belgium
| | - Aran Lamaire
- Center for Molecular Modeling, Ghent University, Technologiepark 46, 9052, Zwijnaarde, Belgium
| | - Maarten Cools-Ceuppens
- Center for Molecular Modeling, Ghent University, Technologiepark 46, 9052, Zwijnaarde, Belgium
| | - Toon Verstraelen
- Center for Molecular Modeling, Ghent University, Technologiepark 46, 9052, Zwijnaarde, Belgium
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3
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A critical assessment of the roles of water molecules and solvated ions in acid-base-catalyzed reactions at solid-water interfaces. CHINESE JOURNAL OF CATALYSIS 2022. [DOI: 10.1016/s1872-2067(21)64032-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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4
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Chen W, Yi X, Liu Z, Tang X, Zheng A. Carbocation chemistry confined in zeolites: spectroscopic and theoretical characterizations. Chem Soc Rev 2022; 51:4337-4385. [PMID: 35536126 DOI: 10.1039/d1cs00966d] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Acid-catalyzed reactions inside zeolites are one type of broadly applied industrial reactions, where carbocations are the most common intermediates of these reaction processes, including methanol to olefins, alkene/aromatic alkylation, and hydrocarbon cracking/isomerization. The fundamental research on these acid-catalyzed reactions is focused on the stability, evolution, and lifetime of carbocations under the zeolite confinement effect, which greatly affects the efficiency, selectivity and deactivation of zeolite catalysts. Therefore, a profound understanding of the carbocations confined in zeolites is not only beneficial to explain the reaction mechanism but also drive the design of new zeolite catalysts with ideal acidity and cages/channels. In this review, we provide both an in-depth understanding of the stabilization of carbocations by the pore confinement effect and summary of the advanced characterization methods to capture carbocations in zeolites, including UV-vis spectroscopy, solid-state NMR, fluorescence microscopy, IR spectroscopy and Raman spectroscopy. Also, we clarify the relationship between the activity and stability of carbocations in zeolite-catalyzed reactions, and further highlight the role of carbocations in various hydrocarbon conversion reactions inside zeolites with diverse frameworks and varying acidic properties.
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Affiliation(s)
- Wei Chen
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, P. R. China.
| | - Xianfeng Yi
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, P. R. China.
| | - Zhiqiang Liu
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, P. R. China.
| | - Xiaomin Tang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, P. R. China.
| | - Anmin Zheng
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan 430071, P. R. China. .,University of Chinese Academy of Sciences, Beijing 100049, P. R. China
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5
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van Vreeswijk SH, Weckhuysen BM. Emerging Analytical Methods to Characterize Zeolite-Based Materials. Natl Sci Rev 2022; 9:nwac047. [PMID: 36128456 PMCID: PMC9477204 DOI: 10.1093/nsr/nwac047] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 02/23/2022] [Accepted: 02/28/2022] [Indexed: 11/23/2022] Open
Abstract
Zeolites and zeolitic materials are, through their use in numerous conventional and sustainable applications, very important to our daily lives, including to foster the necessary transition to a more circular society. The characterization of zeolite-based materials has a tremendous history and a great number of applications and properties of these materials have been discovered in the past decades. This review focuses on recently developed novel as well as more conventional techniques applied with the aim of better understanding zeolite-based materials. Recently explored analytical methods, e.g. atom probe tomography, scanning transmission X-ray microscopy, confocal fluorescence microscopy and photo-induced force microscopy, are discussed on their important contributions to the better understanding of zeolites as they mainly focus on the micro- to nanoscale chemical imaging and the revelation of structure–composition–performance relationships. Some other techniques have a long and established history, e.g. nuclear magnetic resonance, infrared, neutron scattering, electron microscopy and X-ray diffraction techniques, and have gone through increasing developments allowing the techniques to discover new and important features in zeolite-based materials. Additional to the increasing application of these methods, multiple techniques are nowadays used to study zeolites under working conditions (i.e. the in situ/operando mode of analysis) providing new insights in reaction and deactivation mechanisms.
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Affiliation(s)
- S H van Vreeswijk
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - B M Weckhuysen
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
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6
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Petersen H, Weidenthaler C. A review of recent developments for the in situ/operando characterization of nanoporous materials. Inorg Chem Front 2022. [DOI: 10.1039/d2qi00977c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This is a review on up-to-date in situ/operando methods for a comprehensive characterization of nanoporous materials. The group of nanoporous materials is constantly growing, and with it, the variety of...
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7
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Ivanova II, Kolyagin YG. Application of Multinuclear MAS NMR for the in situ Monitoring of Hydrothermal Synthesis of Zeolites. Chemistry 2021; 27:14143-14167. [PMID: 34402560 DOI: 10.1002/chem.202101797] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Indexed: 11/07/2022]
Abstract
In situ MAS NMR studies on the monitoring of hydrothermal synthesis of zeolites are reviewed. The first part of the review contains information on the experimental techniques used for the in situ NMR studies in static and MAS conditions. In the second part, the main capabilities of the in situ 1 H, 11 B, 13 C, 14 N, 19 F, 23 Na, 27 Al, 29 Si and 31 P MAS NMR for the elucidation of the mechanism of hydrothermal synthesis of zeolites are examined and the data on NMR lines identification are summarized. In the last part the main application areas of the techniques are considered and illustrated with examples taken from the mechanistic studies of zeolites A, X, MFI and BEA synthesis. A cross-reference index between the materials studied, the experimental approaches used, the mechanistic information obtained, and the corresponding literature sources is established.
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Affiliation(s)
- Irina I Ivanova
- Department of Chemistry, Moscow State University, Lenin Hills 1/3, 119991, Moscow, Russia) E.,A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Science, Leninskiy prospect Moskva, 29, 119991, Moscow, Russia
| | - Yury G Kolyagin
- Department of Chemistry, Moscow State University, Lenin Hills 1/3, 119991, Moscow, Russia) E.,A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Science, Leninskiy prospect Moskva, 29, 119991, Moscow, Russia
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8
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Grifoni E, Piccini G, Lercher JA, Glezakou VA, Rousseau R, Parrinello M. Confinement effects and acid strength in zeolites. Nat Commun 2021; 12:2630. [PMID: 33976197 PMCID: PMC8113345 DOI: 10.1038/s41467-021-22936-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 03/30/2021] [Indexed: 02/03/2023] Open
Abstract
Chemical reactivity and sorption in zeolites are coupled to confinement and-to a lesser extent-to the acid strength of Brønsted acid sites (BAS). In presence of water the zeolite Brønsted acid sites eventually convert into hydronium ions. The gradual transition from zeolite Brønsted acid sites to hydronium ions in zeolites of varying pore size is examined by ab initio molecular dynamics combined with enhanced sampling based on Well-Tempered Metadynamics and a recently developed set of collective variables. While at low water content (1-2 water/BAS) the acidic protons prefer to be shared between zeolites and water, higher water contents (n > 2) invariably lead to solvation of the protons within a localized water cluster adjacent to the BAS. At low water loadings the standard free energy of the formed complexes is dominated by enthalpy and is associated with the acid strength of the BAS and the space around the site. Conversely, the entropy increases linearly with the concentration of waters in the pores, favors proton solvation and is independent of the pore size/shape.
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Affiliation(s)
- Emanuele Grifoni
- grid.5801.c0000 0001 2156 2780Department of Chemistry and Applied Biosciences, ETH Zurich, c/o USI Campus, Via Giuseppe Buffi 13, Lugano, Ticino Switzerland ,grid.29078.340000 0001 2203 2861Institute of Computational Science, Università della Svizzera italiana (USI), Via Giuseppe Buffi 13, Lugano, Ticino Switzerland ,grid.6093.cPresent Address: Scuola Normale Superiore, Piazza dei Cavalieri, Pisa, Italy
| | - GiovanniMaria Piccini
- grid.5801.c0000 0001 2156 2780Department of Chemistry and Applied Biosciences, ETH Zurich, c/o USI Campus, Via Giuseppe Buffi 13, Lugano, Ticino Switzerland ,grid.29078.340000 0001 2203 2861Institute of Computational Science, Università della Svizzera italiana (USI), Via Giuseppe Buffi 13, Lugano, Ticino Switzerland ,grid.451303.00000 0001 2218 3491Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA USA
| | - Johannes A. Lercher
- grid.451303.00000 0001 2218 3491Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA USA ,grid.6936.a0000000123222966Department Chemie and Catalysis Research Center, TU München, Lichtenbergstr. 4, Garching, Germany
| | - Vassiliki-Alexandra Glezakou
- grid.451303.00000 0001 2218 3491Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA USA
| | - Roger Rousseau
- grid.451303.00000 0001 2218 3491Institute for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, WA USA
| | - Michele Parrinello
- grid.5801.c0000 0001 2156 2780Department of Chemistry and Applied Biosciences, ETH Zurich, c/o USI Campus, Via Giuseppe Buffi 13, Lugano, Ticino Switzerland ,grid.29078.340000 0001 2203 2861Institute of Computational Science, Università della Svizzera italiana (USI), Via Giuseppe Buffi 13, Lugano, Ticino Switzerland ,grid.25786.3e0000 0004 1764 2907Italian Institute of Technology, Via Morego 30, Genova, Italy
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9
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Liu P, Yan Z, Mei D. Insights into protonation for cyclohexanol/water mixtures at the zeolitic Brønsted acid site. Phys Chem Chem Phys 2021; 23:10395-10401. [PMID: 33889887 DOI: 10.1039/d0cp06523d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Proton transfer from Brønsted acid sites (BASs) to alcohol molecules ignites the acid-catalyzed alcohol dehydration reactions. For aqueous phase dehydration reactions in zeolites, the coexisting water molecules around BASs in the zeolite pores significantly affect the alcohol dehydration activity. In the present work, proton transfer processes among the BASs of H-BEA zeolites, the adsorbed cyclohexanol and surrounding water clusters with different sizes up to 8 water molecules were investigated using ab initio molecular dynamics (AIMD) simulations combined with the multiple-walker well-tempered metadynamics algorithm. The plausible proton locations and proton transfer processes were characterized using two/three-dimensional free energy landscapes. The strong proton affinity makes the protonated cyclohexanol stable species until a water trimer is formed. The proton either is shared between protonated cyclohexanol and the water trimer or remains with the water trimer (H7O3+). With a further increase in water concentrations, the proton prefers to remain with the water clusters.
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Affiliation(s)
- Peng Liu
- School of Chemistry and Chemical Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, P. R. China.
| | - Zhenxin Yan
- School of Chemistry and Chemical Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, P. R. China.
| | - Donghai Mei
- School of Chemistry and Chemical Engineering, State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, P. R. China. and School of Environmental Science and Engineering, Tiangong University, Tianjin 300387, P. R. China
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10
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Greish AA, Barkova AP, Finashina ED, Salmi TO, Kustov LM. Selective dimerization of cyclohexene over a Re2O7-B2O3/Al2O3 catalyst under mild conditions. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Jaegers NR, Hu W, Wang Y, Hu JZ. High-Temperature and High-Pressure In situ Magic Angle Spinning Nuclear Magnetic Resonance Spectroscopy. J Vis Exp 2020:10.3791/61794. [PMID: 33104063 PMCID: PMC7877478 DOI: 10.3791/61794] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Nuclear magnetic resonance (NMR) spectroscopy represents an important technique to understand the structure and bonding environments of molecules. There exists a drive to characterize materials under conditions relevant to the chemical process of interest. To address this, in situ high-temperature, high-pressure MAS NMR methods have been developed to enable the observation of chemical interactions over a range of pressures (vacuum to several hundred bar) and temperatures (well below 0 °C to 250 °C). Further, the chemical identity of the samples can be comprised of solids, liquids, and gases or mixtures of the three. The method incorporates all-zirconia NMR rotors (sample holder for MAS NMR) which can be sealed using a threaded cap to compress an O-ring. This rotor exhibits great chemical resistance, temperature compatibility, low NMR background, and can withstand high pressures. These combined factors enable it to be utilized in a wide range of system combinations, which in turn permit its use in diverse fields as carbon sequestration, catalysis, material science, geochemistry, and biology. The flexibility of this technique makes it an attractive option for scientists from numerous disciplines.
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Affiliation(s)
| | | | - Yong Wang
- Pacific Northwest National Laboratory
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12
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Milakovic L, Hintermeier PH, Liu Q, Shi H, Liu Y, Baráth E, Lercher JA. Towards understanding and predicting the hydronium ion catalyzed dehydration of cyclic-primary, secondary and tertiary alcohols. J Catal 2020. [DOI: 10.1016/j.jcat.2020.08.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Jaegers NR, Mueller KT, Wang Y, Hu JZ. Variable Temperature and Pressure Operando MAS NMR for Catalysis Science and Related Materials. Acc Chem Res 2020; 53:611-619. [PMID: 31927984 PMCID: PMC7301621 DOI: 10.1021/acs.accounts.9b00557] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The characterization of catalytic materials under working conditions is of paramount importance for a realistic depiction and comprehensive understanding of the system. Under such relevant environments, catalysts often exhibit properties or reactivity not observed under standard spectroscopic conditions. Fulfilling such harsh environments as high temperature and pressure is a particular challenge for solid-state NMR where samples spin several thousand times a second within a strong magnetic field. To address concerns about the disparities between spectroscopic environments and operando conditions, novel MAS NMR technology has been developed that enables the probing of catalytic systems over a wide range of pressures, temperatures, and chemical environments. In this Account, new efforts to overcome the technical challenges in the development of operando and in situ MAS NMR will be briefly outlined. Emphasis will be placed on exploring the unique chemical regimes that take advantage of the new developments. With the progress achieved, it is possible to interrogate both structure and dynamics of the environments surrounding various nuclear constituents (1H, 13C, 23Na, 27Al, etc.), as well as assess time-resolved interactions and transformations.Operando and in situ NMR enables the direct observation of chemical components and their interactions with active sites (such as Brønsted acid sites on zeolites) to reveal the nature of the active center under catalytic conditions. Further, mixtures of such constituents can also be assessed to reveal the transformation of the active site when side products, such as water, are generated. These interactions are observed across a range of temperatures (-10 to 230 °C) and pressures (vacuum to 100 bar) for both vapor and condensed phase analysis. When coupled with 2D NMR, computational modeling, or both, specific binding modes are identified where the adsorbed state provides distinct signatures. In addition to vapor phase chemical environments, gaseous environments can be introduced and controlled over a wide range of pressures to support catalytic studies that require H2, CO, CO2, etc. Mixtures of three phases may also be employed. Such reactions can be monitored in situ to reveal the transformation of the substrates, active sites, intermediates, and products over the course of the study. Further, coupling of operando NMR with isotopic labeling schemes reveals specific mechanistic insights otherwise unavailable. Examples of these strategies will be outlined to reveal important fundamental insights on working catalyst systems possible only under operando conditions. Extension of operando MAS NMR to study the solid-electrolyte interface and solvation structures associated with energy storage systems and biomedical systems will also be presented to highlight the versatility of this powerful technique.
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Affiliation(s)
- Nicholas R Jaegers
- Physical and Computational Science Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
- Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99163, United States
| | - Karl T Mueller
- Physical and Computational Science Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Yong Wang
- Physical and Computational Science Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
- Voiland School of Chemical Engineering and Bioengineering, Washington State University, Pullman, Washington 99163, United States
| | - Jian Zhi Hu
- Physical and Computational Science Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
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14
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Nagasaka M, Yuzawa H, Kosugi N. Soft X-ray Absorption Spectroscopy of Liquids for Understanding Chemical Processes in Solution. ANAL SCI 2020; 36:95-105. [PMID: 31708561 DOI: 10.2116/analsci.19r005] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Soft X-ray absorption spectroscopy (XAS) involving excitation processes of a core electron to unoccupied states is an effective method to study local structures around excited C, N, and O atoms in liquid samples. Since soft X-rays are strongly absorbed by air and liquid itself, we have developed transmission-type liquid flow cells, where the absorbance of liquid samples can be easily reduced and optimized by controlling the liquid thickness. By using the transmission-mode XAS techniques, we have investigated local structures of several liquid samples such as concentration dependence of aqueous pyridine solutions and unexpected temperature-dependent structural changes in liquid benzene from the precise energy shift measurements in XAS spectra with the help of molecular dynamics simulation and inner-shell calculations. These XAS techniques are also applied to in situ/operando observation of chemical processes in solutions such as catalytic and electrochemical reactions.
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Affiliation(s)
- Masanari Nagasaka
- Institute for Molecular Science.,SOKENDAI (The Graduate University for Advanced Studies)
| | | | - Nobuhiro Kosugi
- Institute for Molecular Science.,SOKENDAI (The Graduate University for Advanced Studies)
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15
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Qi L, Chamas A, Jones ZR, Walter ED, Hoyt DW, Washton NM, Scott SL. Unraveling the Dynamic Network in the Reactions of an Alkyl Aryl Ether Catalyzed by Ni/γ-Al2O3 in 2-Propanol. J Am Chem Soc 2019; 141:17370-17381. [DOI: 10.1021/jacs.9b09071] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Long Qi
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
- U.S. DOE Ames Laboratory, Iowa State University, Ames, Iowa 50011, United States
| | - Ali Chamas
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Zachary R. Jones
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
| | - Eric D. Walter
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - David W. Hoyt
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Nancy M. Washton
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Susannah L. Scott
- Department of Chemistry & Biochemistry, University of California, Santa Barbara, California 93106, United States
- Department of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
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16
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High temperature/pressure MAS-NMR for the study of dynamic processes in mixed phase systems. Magn Reson Imaging 2019; 56:37-44. [DOI: 10.1016/j.mri.2018.09.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 09/24/2018] [Indexed: 11/22/2022]
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17
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Liu Y, Baráth E, Shi H, Hu J, Camaioni DM, Lercher JA. Solvent-determined mechanistic pathways in zeolite-H-BEA-catalysed phenol alkylation. Nat Catal 2018. [DOI: 10.1038/s41929-017-0015-z] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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18
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Li X, Zhang Y, Chen Z, Cao P, Zou W, Tang C, Dong L, Wang Y. Sustainable Production of 2,3-Pentanedione: Catalytic Performance of Ba2P2O7 Doped with Cs for Vapor-Phase Condensation of Lactic Acid. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b03595] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Xinli Li
- School
of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 40054, People’s Republic of China
| | - Yu Zhang
- Chemical
Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637002, People’s Republic of China
| | - Zhi Chen
- School
of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 40054, People’s Republic of China
| | - Ping Cao
- School
of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 40054, People’s Republic of China
| | - Weixin Zou
- Jiangsu
Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Congming Tang
- School
of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 40054, People’s Republic of China
- Chemical
Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637002, People’s Republic of China
| | - Lin Dong
- Jiangsu
Key Laboratory of Vehicle Emissions Control, Center of Modern Analysis, Nanjing University, Nanjing 210093, People’s Republic of China
| | - Yu Wang
- School
of Chemistry and Life Science, Guizhou Education University, Guiyang 550018, People’s Republic of China
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Hintermeier PH, Eckstein S, Mei D, Olarte MV, Camaioni DM, Baráth E, Lercher JA. Hydronium-Ion-Catalyzed Elimination Pathways of Substituted Cyclohexanols in Zeolite H-ZSM5. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01582] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Peter H. Hintermeier
- Department
of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstrasse 4, Garching D-85747, Germany
| | - Sebastian Eckstein
- Department
of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstrasse 4, Garching D-85747, Germany
| | - Donghai Mei
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, United States
| | - Mariefel V. Olarte
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, United States
| | - Donald M. Camaioni
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, United States
| | - Eszter Baráth
- Department
of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstrasse 4, Garching D-85747, Germany
| | - Johannes A. Lercher
- Department
of Chemistry and Catalysis Research Center, Technische Universität München, Lichtenbergstrasse 4, Garching D-85747, Germany
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99352, United States
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20
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Song Y, Xu S, Ling F, Tian P, Ye T, Yu D, Chu X, Lin Y, Yang X, Tang J. Atomic layer deposition of aluminium on anatase: A solid acid catalyst with remarkable performances for alcohol dehydration. CATAL COMMUN 2017. [DOI: 10.1016/j.catcom.2017.05.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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21
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Chen K, Gumidyala A, Abdolrhamani M, Villines C, Crossley S, White JL. Trace water amounts can increase benzene H/D exchange rates in an acidic zeolite. J Catal 2017. [DOI: 10.1016/j.jcat.2017.04.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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22
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Zhao Z, Shi H, Wan C, Hu MY, Liu Y, Mei D, Camaioni DM, Hu JZ, Lercher JA. Mechanism of Phenol Alkylation in Zeolite H-BEA Using In Situ Solid-State NMR Spectroscopy. J Am Chem Soc 2017. [DOI: 10.1021/jacs.7b02153] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhenchao Zhao
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
| | - Hui Shi
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
| | - Chuan Wan
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
| | - Mary Y. Hu
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
| | - Yuanshuai Liu
- Department
of Chemistry and Catalysis Research Center, TU München, Lichtenbergstrasse
4, 85748 Garching, Germany
| | - Donghai Mei
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
| | - Donald M. Camaioni
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
| | - Jian Zhi Hu
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
| | - Johannes A. Lercher
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, United States
- Department
of Chemistry and Catalysis Research Center, TU München, Lichtenbergstrasse
4, 85748 Garching, Germany
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23
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Shi H, Eckstein S, Vjunov A, Camaioni DM, Lercher JA. Tailoring nanoscopic confines to maximize catalytic activity of hydronium ions. Nat Commun 2017; 8:15442. [PMID: 28541290 PMCID: PMC5458516 DOI: 10.1038/ncomms15442] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2016] [Accepted: 03/30/2017] [Indexed: 11/11/2022] Open
Abstract
Acid catalysis by hydronium ions is ubiquitous in aqueous-phase organic reactions. Here we show that hydronium ion catalysis, exemplified by intramolecular dehydration of cyclohexanol, is markedly influenced by steric constraints, yielding turnover rates that increase by up to two orders of magnitude in tight confines relative to an aqueous solution of a Brønsted acid. The higher activities in zeolites BEA and FAU than in water are caused by more positive activation entropies that more than offset higher activation enthalpies. The higher activity in zeolite MFI with pores smaller than BEA and FAU is caused by a lower activation enthalpy in the tighter confines that more than offsets a less positive activation entropy. Molecularly sized pores significantly enhance the association between hydronium ions and alcohols in a steric environment resembling the constraints in pockets of enzymes stabilizing active sites. The rates of acid-catalysed reactions vary in constrained environments. Here the authors show that molecularly sized pores greatly promote aqueous phase alcohol dehydration by enhancing the association between substrate and hydronium ions, and even by lowering the free energy barrier.
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Affiliation(s)
- Hui Shi
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, USA
| | - Sebastian Eckstein
- Department of Chemistry and Catalysis Research Center, TU München, Lichtenbergstrasse 4, 85748 Garching, Germany
| | - Aleksei Vjunov
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, USA
| | - Donald M Camaioni
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, USA
| | - Johannes A Lercher
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, Washington 99352, USA.,Department of Chemistry and Catalysis Research Center, TU München, Lichtenbergstrasse 4, 85748 Garching, Germany
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24
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Wang H, Ruan H, Feng M, Qin Y, Job H, Luo L, Wang C, Engelhard MH, Kuhn E, Chen X, Tucker MP, Yang B. One-Pot Process for Hydrodeoxygenation of Lignin to Alkanes Using Ru-Based Bimetallic and Bifunctional Catalysts Supported on Zeolite Y. CHEMSUSCHEM 2017; 10:1846-1856. [PMID: 28225212 DOI: 10.1002/cssc.201700160] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2017] [Indexed: 06/06/2023]
Abstract
The synthesis of high-efficiency and low-cost catalysts for hydrodeoxygenation (HDO) of waste lignin to advanced biofuels is crucial for enhancing current biorefinery processes. Inexpensive transition metals, including Fe, Ni, Cu, and Zn, were severally co-loaded with Ru on HY zeolite to form bimetallic and bifunctional catalysts. These catalysts were subsequently tested for HDO conversion of softwood lignin and several lignin model compounds. Results indicated that the inexpensive earth-abundant metals could modulate the hydrogenolysis activity of Ru and decrease the yield of low-molecular-weight gaseous products. Among these catalysts, Ru-Cu/HY showed the best HDO performance, affording the highest selectivity to hydrocarbon products. The improved catalytic performance of Ru-Cu/HY was probably a result of the following three factors: (1) high total and strong acid sites, (2) good dispersion of metal species and limited segregation, and (3) high adsorption capacity for polar fractions, including hydroxyl groups and ether bonds. Moreover, all bifunctional catalysts proved to be superior over the combination catalysts of Ru/Al2 O3 and HY zeolite.
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Affiliation(s)
- Hongliang Wang
- Department of Biological Systems Engineering, Washington State University, Richland, WA, 99354, USA
| | - Hao Ruan
- Department of Biological Systems Engineering, Washington State University, Richland, WA, 99354, USA
| | - Maoqi Feng
- Chemistry & Chemical Engineering Division, Southwest Research Institute, San Antonio, TX, 78238, USA
| | - Yuling Qin
- Department of Biological Systems Engineering, Washington State University, Richland, WA, 99354, USA
| | - Heather Job
- Pacific Northwest National Laboratory, 902 Battelle Blvd, Richland, WA, 99354, USA
| | - Langli Luo
- Environmental Molecular Sciences Laboratory, 3335 Q Ave, Richland, WA, 99354, USA
| | - Chongmin Wang
- Environmental Molecular Sciences Laboratory, 3335 Q Ave, Richland, WA, 99354, USA
| | - Mark H Engelhard
- Environmental Molecular Sciences Laboratory, 3335 Q Ave, Richland, WA, 99354, USA
| | - Erik Kuhn
- National Bioenergy Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO., 80401, USA
| | - Xiaowen Chen
- National Bioenergy Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO., 80401, USA
| | - Melvin P Tucker
- National Bioenergy Center, National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO., 80401, USA
| | - Bin Yang
- Department of Biological Systems Engineering, Washington State University, Richland, WA, 99354, USA
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25
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Qi L, Alamillo R, Elliott WA, Andersen A, Hoyt DW, Walter ED, Han KS, Washton NM, Rioux RM, Dumesic JA, Scott SL. Operando Solid-State NMR Observation of Solvent-Mediated Adsorption-Reaction of Carbohydrates in Zeolites. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01045] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Ricardo Alamillo
- Department
of Chemical and Biological Engineering, University of Wisconsin, Madison, Wisconsin 53706, United States
| | | | - Amity Andersen
- Environmental
Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - David W. Hoyt
- Environmental
Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Eric D. Walter
- Environmental
Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Kee Sung Han
- Environmental
Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Nancy M. Washton
- Environmental
Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | | | - James A. Dumesic
- Department
of Chemical and Biological Engineering, University of Wisconsin, Madison, Wisconsin 53706, United States
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26
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Enhancing the catalytic activity of hydronium ions through constrained environments. Nat Commun 2017; 8:14113. [PMID: 28252021 PMCID: PMC5337972 DOI: 10.1038/ncomms14113] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Accepted: 11/30/2016] [Indexed: 11/08/2022] Open
Abstract
The dehydration of alcohols is involved in many organic conversions but has to overcome high free-energy barriers in water. Here we demonstrate that hydronium ions confined in the nanopores of zeolite HBEA catalyse aqueous phase dehydration of cyclohexanol at a rate significantly higher than hydronium ions in water. This rate enhancement is not related to a shift in mechanism; for both cases, the dehydration of cyclohexanol occurs via an E1 mechanism with the cleavage of Cβ–H bond being rate determining. The higher activity of hydronium ions in zeolites is caused by the enhanced association between the hydronium ion and the alcohol, as well as a higher intrinsic rate constant in the constrained environments compared with water. The higher rate constant is caused by a greater entropy of activation rather than a lower enthalpy of activation. These insights should allow us to understand and predict similar processes in confined spaces. Alcohol dehydration can be challenging in aqueous phase. Here the authors show that hydronium ions confined with zeolite pores catalyse alcohol dehydration at a significantly increased rate relative to aqueous phase hydronium ions, driven by an increased association between the ion and alcohol and a greater entropy of activation.
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27
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John M, Alexopoulos K, Reyniers MF, Marin GB. Effect of zeolite confinement on the conversion of 1-butanol to butene isomers: mechanistic insights from DFT based microkinetic modelling. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00536a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
First principles microkinetic modelling shows that, unlike in H-ZSM-5 and H-ZSM-22, trans-2-butene formation in H-FER occurs via direct dehydration of 1-butanol.
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Affiliation(s)
- Mathew John
- Laboratory for Chemical Technology
- Ghent University
- B-9052 Ghent
- Belgium
| | | | | | - Guy B. Marin
- Laboratory for Chemical Technology
- Ghent University
- B-9052 Ghent
- Belgium
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28
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Mei D, Lercher JA. Mechanistic insights into aqueous phase propanol dehydration in H-ZSM-5 zeolite. AIChE J 2016. [DOI: 10.1002/aic.15517] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Donghai Mei
- Pacific Northwest National Laboratory; Physical and Computational Sciences Directorate & Institute for Integrated Catalysis; Richland WA 99352
| | - Johannes A. Lercher
- Pacific Northwest National Laboratory; Physical and Computational Sciences Directorate & Institute for Integrated Catalysis; Richland WA 99352
- Dept. of Chemistry and Catalysis Research Institute, TU München; Lichtenbergstrasse 4 Garching 85748 Germany
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29
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Hu JZ, Hu MY, Zhao Z, Xu S, Vjunov A, Shi H, Camaioni DM, Peden CHF, Lercher JA. Sealed rotors for in situ high temperature high pressure MAS NMR. Chem Commun (Camb) 2016; 51:13458-61. [PMID: 26171928 DOI: 10.1039/c5cc03910j] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Here we present the design of reusable and perfectly sealed all-zirconia MAS rotors. The rotors are used to study AlPO4-5 molecular sieve crystallization under hydrothermal conditions, high temperature high pressure cyclohexanol dehydration reaction, and low temperature metabolomics of intact biological tissue.
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Affiliation(s)
- Jian Zhi Hu
- Pacific Northwest National Laboratory, Richland, WA 99352, USA.
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30
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John M, Alexopoulos K, Reyniers MF, Marin GB. First-Principles Kinetic Study on the Effect of the Zeolite Framework on 1-Butanol Dehydration. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00708] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mathew John
- Laboratory
for Chemical Technology, Ghent University, Technologiepark 914, B-9052 Gent, Belgium
| | | | | | - Guy B. Marin
- Laboratory
for Chemical Technology, Ghent University, Technologiepark 914, B-9052 Gent, Belgium
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31
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Song W, Liu Y, Baráth E, Wang LL, Zhao C, Mei D, Lercher JA. Dehydration of 1-Octadecanol over H-BEA: A Combined Experimental and Computational Study. ACS Catal 2016. [DOI: 10.1021/acscatal.5b01217] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wenji Song
- Department
of Chemistry and Catalysis Research Institute, TU München, Lichtenbergstrasse
4, 85748 Garching, Germany
| | - Yuanshuai Liu
- Department
of Chemistry and Catalysis Research Institute, TU München, Lichtenbergstrasse
4, 85748 Garching, Germany
| | - Eszter Baráth
- Department
of Chemistry and Catalysis Research Institute, TU München, Lichtenbergstrasse
4, 85748 Garching, Germany
| | - Lucy L. Wang
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Chen Zhao
- Department
of Chemistry and Catalysis Research Institute, TU München, Lichtenbergstrasse
4, 85748 Garching, Germany
- Shanghai
Key Laboratory of Green Chemistry and Chemical Process, Department
of Chemistry, East China Normal University, North Zhongshan Road 3663, 200062 Shanghai, China
| | - Donghai Mei
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Johannes A. Lercher
- Department
of Chemistry and Catalysis Research Institute, TU München, Lichtenbergstrasse
4, 85748 Garching, Germany
- Institute
for Integrated Catalysis, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
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32
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Chase ZA, Kasakov S, Shi H, Vjunov A, Fulton JL, Camaioni DM, Balasubramanian M, Zhao C, Wang Y, Lercher JA. State of Supported Nickel Nanoparticles during Catalysis in Aqueous Media. Chemistry 2015; 21:16541-6. [DOI: 10.1002/chem.201502723] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Zizwe A. Chase
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352 (USA)
- School of Chemical and Biological Engineering, Washington State University, Pullman, WA 99364 (USA)
| | - Stanislav Kasakov
- Department of Chemistry and Catalysis Research Institute, TU München, Lichtenbergstrasse 4, 85748 Garching (Germany)
| | - Hui Shi
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352 (USA)
| | - Aleksei Vjunov
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352 (USA)
| | - John L. Fulton
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352 (USA)
| | - Donald M. Camaioni
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352 (USA)
| | - Mahalingam Balasubramanian
- Advanced Photon Source, Argonne National Laboratory, Building 401, 9700 S. Cass Avenue, Argonne, IL 60439 (USA)
| | - Chen Zhao
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352 (USA)
- School of Chemical and Biological Engineering, Washington State University, Pullman, WA 99364 (USA)
- Current address: Shanghai Key Laboratory of Green Chemistry and Chemical Process, Department of Chemistry, East China Normal University, North Zhongshan Road 3663, 200062 Shanghai (P. R. China)
| | - Yong Wang
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352 (USA)
- School of Chemical and Biological Engineering, Washington State University, Pullman, WA 99364 (USA)
| | - Johannes A. Lercher
- Institute for Integrated Catalysis, Pacific Northwest National Laboratory, P.O. Box 999, Richland, WA 99352 (USA)
- Department of Chemistry and Catalysis Research Institute, TU München, Lichtenbergstrasse 4, 85748 Garching (Germany)
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33
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Tang C, Zhai Z, Li X, Sun L, Bai W. Highly efficient and robust Mg0.388Al2.408O4 catalyst for gas-phase decarbonylation of lactic acid to acetaldehyde. J Catal 2015. [DOI: 10.1016/j.jcat.2015.05.016] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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34
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Ashbrook SE, Dawson DM, Seymour VR. Recent developments in solid-state NMR spectroscopy of crystalline microporous materials. Phys Chem Chem Phys 2015; 16:8223-42. [PMID: 24675798 DOI: 10.1039/c4cp00578c] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Microporous materials, having pores and channels on the same size scale as small to medium molecules, have found many important applications in current technologies, including catalysis, gas separation and drug storage and delivery. Many of their properties and functions are related to their detailed local structure, such as the type and distribution of active sites within the pores, and the specific structures of these active sites. Solid-state NMR spectroscopy has a strong track record of providing the requisite detailed atomic-level insight into the structures of microporous materials, in addition to being able to probe dynamic processes occurring on timescales spanning many orders of magnitude (i.e., from s to ps). In this Perspective, we provide a brief review of some of the basic experimental approaches used in solid-state NMR spectroscopy of microporous materials, and then discuss some more recent advances in this field, particularly those applied to the study of crystalline materials such as zeolites and metal-organic frameworks. These advances include improved software for aiding spectral interpretation, the development of the NMR-crystallography approach to structure determination, new routes for the synthesis of isotopically-labelled materials, methods for the characterisation of host-guest interactions, and methodologies suitable for observing NMR spectra of paramagnetic microporous materials. Finally, we discuss possible future directions, which we believe will have the greatest impact on the field over the coming years.
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Affiliation(s)
- Sharon E Ashbrook
- School of Chemistry, EaStCHEM and St Andrews Centre for Magnetic Resonance, St Andrews KY16 9ST, UK.
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35
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Zhao J, Meng A, Zhang M, Ren W, Li Z. Nitrogen content and morphology dependent field emission properties of nitrogen-doped SiC nanowires and density functional calculations. Phys Chem Chem Phys 2015; 17:28658-65. [DOI: 10.1039/c5cp04064g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N-Doped SiC NWs with varying N content have been synthesized via a one-step CVR, and they exhibit excellent FE properties.
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Affiliation(s)
- Jian Zhao
- Key Laboratory of Polymer Material Advanced Manufacturing Technology of Shandong Provincial
- Qingdao University of Science and Technology
- Qingdao 266061
- P. R. China
| | - Alan Meng
- State Key Laboratory Base of Eco-chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science and Technology
- Qingdao 266042
- P. R. China
| | - Meng Zhang
- Key Laboratory of Polymer Material Advanced Manufacturing Technology of Shandong Provincial
- Qingdao University of Science and Technology
- Qingdao 266061
- P. R. China
| | - Weipeng Ren
- Key Laboratory of Polymer Material Advanced Manufacturing Technology of Shandong Provincial
- Qingdao University of Science and Technology
- Qingdao 266061
- P. R. China
- National Key Laboratory of Science and Technology on Advanced High Temperature Structural Materials
| | - Zhenjiang Li
- Key Laboratory of Polymer Material Advanced Manufacturing Technology of Shandong Provincial
- Qingdao University of Science and Technology
- Qingdao 266061
- P. R. China
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36
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Ohta H, Yamamoto K, Hayashi M, Hamasaka G, Uozumi Y, Watanabe Y. Low temperature hydrodeoxygenation of phenols under ambient hydrogen pressure to form cyclohexanes catalysed by Pt nanoparticles supported on H-ZSM-5. Chem Commun (Camb) 2015; 51:17000-3. [DOI: 10.1039/c5cc05607a] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hydrodeoxygenation of various phenols to form cyclohexanes under mild conditions (ambient H2 pressure and 110 °C) was developed by using a Pt/H-ZSM-5 catalyst and octane as the solvent.
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Affiliation(s)
- Hidetoshi Ohta
- Department of Materials Science and Biotechnology
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
| | - Kentaro Yamamoto
- Department of Materials Science and Biotechnology
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
| | - Minoru Hayashi
- Department of Materials Science and Biotechnology
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
| | - Go Hamasaka
- Institute for Molecular Science
- Okazaki 444-8787
- Japan
| | | | - Yutaka Watanabe
- Department of Materials Science and Biotechnology
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
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37
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Shi H, Lercher JA, Yu XY. Sailing into uncharted waters: recent advances in the in situ monitoring of catalytic processes in aqueous environments. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01720j] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review presents recent advances inin situstudies of catalytic processes in the aqueous environment with an outlook of mesoscale imaging.
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Affiliation(s)
- Hui Shi
- Fundamental and Computer Sciences Directorate
- Pacific Northwest National Laboratory (PNNL)
- Richland
- USA
| | - Johannes A. Lercher
- Fundamental and Computer Sciences Directorate
- Pacific Northwest National Laboratory (PNNL)
- Richland
- USA
- Department of Chemistry
| | - Xiao-Ying Yu
- Fundamental and Computer Sciences Directorate
- Pacific Northwest National Laboratory (PNNL)
- Richland
- USA
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38
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Luo W, Bruijnincx PC, Weckhuysen BM. Selective, one-pot catalytic conversion of levulinic acid to pentanoic acid over Ru/H-ZSM5. J Catal 2014. [DOI: 10.1016/j.jcat.2014.09.014] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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