1
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Kumar P, Nemiwal M. Advanced Functionalized Nanoclusters (Cu, Ag, and Au) as Effective Catalyst for Organic Transformation Reactions. Chem Asian J 2024; 19:e202400062. [PMID: 38386668 DOI: 10.1002/asia.202400062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/19/2024] [Accepted: 02/21/2024] [Indexed: 02/24/2024]
Abstract
A considerable amount of research has been carried out in recent years on synthesizing metal nanoclusters (NCs), which have wide applications in the field of optical materials with non-linear properties, bio-sensing, and catalysis. Aside from being structurally accurate, the atomically precise NCs possess well-defined compositions due to significant tailoring, both at the surface and the core, for certain functionalities. To illustrate the importance of atomically precise metal NCs for catalytic processes, this review emphasizes 1) the recent work on Cu, Ag, and Au NCs with their synthesis, 2) the parameters affecting the activity and selectivity of NCs catalysis, and 3) the discussion on the catalytic potential of these metal NCs. Additionally, metal NCs will facilitate the design of extremely active and selective catalysts for significant reactions by elucidating catalytic mechanisms at the atomic and molecular levels. Future advancements in the science of catalysis are expected to come from the potential to design NCs catalysts at the atomic level.
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Affiliation(s)
- Parveen Kumar
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, 302017, India
| | - Meena Nemiwal
- Department of Chemistry, Malaviya National Institute of Technology, Jaipur, 302017, India
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2
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Kornas A, Mlekodaj K, Tabor E. Nature and Redox Properties of Iron Sites in Zeolites Revealed by Mössbauer Spectroscopy. Chempluschem 2024; 89:e202300543. [PMID: 38063835 DOI: 10.1002/cplu.202300543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/23/2023] [Indexed: 05/16/2024]
Abstract
Iron-containing zeolite-based catalysts play a pivotal role in environmental processes aimed at mitigating the release of harmful greenhouse gases, such as nitrous oxide (N2O) and methane (CH4). Despite the rich iron chemistry in zeolites, only a fraction of iron species that exhibit an open coordination sphere and possess the ability for electron transfer are responsible for activating reagents. In addition, the splitting of molecular oxygen is facilitated by bare iron cations embedded in zeolitic matrices. Mössbauer spectroscopy is the ideal tool for investigating the valency and geometry of iron species in zeolites because it leaves no iron forms silent and provides insights into in-situ processes. This review is dedicated to the utilization of Mössbauer spectroscopy to elucidate the nature of the extra-framework iron centers in ferrierite (FER), beta-structured (*BEA), and ZSM-5 zeolite (MFI) zeolites, which are active in N2O decomposition and CH4 oxidation through using the active oxygen derived from N2O and O2. In this work, a structured summary of the Mössbauer parameters established over the last two decades is presented, characterizing the specific iron active centers and intermediates formed upon iron's interaction with N2O/O2 and CH4. Additionally, the impact of preparation methods, iron loading, and the long-term stability on iron speciation and its redox behavior under reaction conditions is discussed.
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Affiliation(s)
- Agnieszka Kornas
- Structure and Dynamics in Catalysis, J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 2155/3, 182 23, Prague 8, Czech Republic
| | - Kinga Mlekodaj
- Structure and Dynamics in Catalysis, J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 2155/3, 182 23, Prague 8, Czech Republic
| | - Edyta Tabor
- Structure and Dynamics in Catalysis, J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 2155/3, 182 23, Prague 8, Czech Republic
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3
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Xiao H, Feng Y, Goundry WRF, Karlsson S. Organic Solvent Nanofiltration in Pharmaceutical Applications. Org Process Res Dev 2024; 28:891-923. [PMID: 38660379 PMCID: PMC11036530 DOI: 10.1021/acs.oprd.3c00470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/22/2024] [Accepted: 02/28/2024] [Indexed: 04/26/2024]
Abstract
Separation and purification in organic solvents are indispensable procedures in pharmaceutical manufacturing. However, they still heavily rely on the conventional separation technologies of distillation and chromatography, resulting in high energy and massive solvent consumption. As an alternative, organic solvent nanofiltration (OSN) offers the benefits of low energy consumption, low solid waste generation, and easy scale-up and incorporation into continuous processes. Thus, there is a growing interest in employing membrane technology in the pharmaceutical area to improve process sustainability and energy efficiency. This Review comprehensively summarizes the recent progress (especially the last 10 years) of organic solvent nanofiltration and its applications in the pharmaceutical industry, including the concentration and purification of active pharmaceutical ingredients, homogeneous catalyst recovery, solvent exchange and recovery, and OSN-assisted peptide/oligonucleotide synthesis. Furthermore, the challenges and future perspectives of membrane technology in pharmaceutical applications are discussed in detail.
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Affiliation(s)
- Hui Xiao
- Early
Chemical Development, Pharmaceutical Sciences, Biopharmaceuticals R&D, AstraZeneca, Macclesfield SK10 2NA, United Kingdom
| | - Yanyue Feng
- Early
Chemical Development, Pharmaceutical Sciences, Biopharmaceuticals R&D, AstraZeneca Gothenburg, SE-431 83 Mölndal, Sweden
| | - William R. F. Goundry
- Early
Chemical Development, Pharmaceutical Sciences, Biopharmaceuticals R&D, AstraZeneca, Macclesfield SK10 2NA, United Kingdom
| | - Staffan Karlsson
- Early
Chemical Development, Pharmaceutical Sciences, Biopharmaceuticals R&D, AstraZeneca Gothenburg, SE-431 83 Mölndal, Sweden
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4
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Fischer JWA, Brenig A, Klose D, van Bokhoven JA, Sushkevich VL, Jeschke G. Methane Oxidation over Cu 2+ /[CuOH] + Pairs and Site-Specific Kinetics in Copper Mordenite Revealed by Operando Electron Paramagnetic Resonance and UV/Visible Spectroscopy. Angew Chem Int Ed Engl 2023; 62:e202303574. [PMID: 37292054 DOI: 10.1002/anie.202303574] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/10/2023]
Abstract
Cu-exchanged mordenite (MOR) is a promising material for partial CH4 oxidation. The structural diversity of Cu species within MOR makes it difficult to identify the active Cu sites and to determine their redox and kinetic properties. In this study, the Cu speciation in Cu-MOR materials with different Cu loadings has been determined using operando electron paramagnetic resonance (EPR) and operando ultraviolet-visible (UV/Vis) spectroscopy as well as in situ photoluminescence (PL) and Fourier-transform infrared (FTIR) spectroscopy. A novel pathway for CH4 oxidation involving paired [CuOH]+ and bare Cu2+ species has been identified. The reduction of bare Cu2+ ions facilitated by adjacent [CuOH]+ demonstrates that the frequently reported assumption of redox-inert Cu2+ centers does not generally apply. The measured site-specific reaction kinetics show that dimeric Cu species exhibit a faster reaction rate and a higher apparent activation energy than monomeric Cu2+ active sites highlighting their difference in the CH4 oxidation potential.
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Affiliation(s)
| | - Andreas Brenig
- Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093, Zurich, Switzerland
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen, Switzerland
| | - Daniel Klose
- Institute for Molecular Physical Science, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093, Zurich, Switzerland
| | - Jeroen Anton van Bokhoven
- Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093, Zurich, Switzerland
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen, Switzerland
| | - Vitaly L Sushkevich
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, Forschungsstrasse 111, 5232, Villigen, Switzerland
| | - Gunnar Jeschke
- Institute for Molecular Physical Science, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093, Zurich, Switzerland
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5
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Li W, Chai Y, Wu G, Li L. Stable and Uniform Extraframework Cations in Faujasite Zeolites. J Phys Chem Lett 2022; 13:11419-11429. [PMID: 36468947 DOI: 10.1021/acs.jpclett.2c02969] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Extraframework transition metal ions (TMIs) in zeolites can serve as active sites for adsorption and catalysis. However, due to the complexity and mobility of extraframework cation sites, their applications are significantly limited and the structure-performance relationship is poorly understood. In this Perspective, stable and uniform TMIs in zeolites are exemplified and their characteristics are discussed. A series of TMIs can be introduced to specific cation sites of faujasite via a ligand-protected in situ synthesis route to construct uniform TMIs in the zeolite matrix, namely, TMI@FAU (TMI= Co, Ni, Cu, Rh, and Pt). Coordinatively unsaturated TMIs within faujasite are active for small-molecule adsorption and activation, and therefore, TMI@FAU zeolites show unique properties in adsorption and catalysis. TMI@FAU zeolites appear to be ideal model systems, and the well-defined structure of TMI@FAU greatly facilitates the mechanism studies by spectroscopic investigations and theoretical simulations.
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Affiliation(s)
- Weijie Li
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
| | - Yuchao Chai
- College of Chemistry, Nankai University, Tianjin 300071, China
| | - Guangjun Wu
- College of Chemistry, Nankai University, Tianjin 300071, China
| | - Landong Li
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, China
- College of Chemistry, Nankai University, Tianjin 300071, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
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6
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Yashnik SA, Boltenkov VV, Babushkin DE, Surovtsova TA, Parmon VN. Liquid-Phase Methane Peroxidation in the Presence of Cu-ZSM-5: Effect of Modification with Palladium. KINETICS AND CATALYSIS 2022. [DOI: 10.1134/s0023158422050172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Direct methane to methanol stepwise conversion over Cu-oxo species in zeolites – Insights on the Cu-zeolite activation in air or helium from in situ UV-Vis analyses. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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8
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Felvey N, Guo J, Rana R, Xu L, Bare SR, Gates BC, Katz A, Kulkarni AR, Runnebaum RC, Kronawitter CX. Interconversion of Atomically Dispersed Platinum Cations and Platinum Clusters in Zeolite ZSM-5 and Formation of Platinum gem-Dicarbonyls. J Am Chem Soc 2022; 144:13874-13887. [PMID: 35854402 DOI: 10.1021/jacs.2c05386] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Catalysts composed of platinum dispersed on zeolite supports are widely applied in industry, and coking and sintering of platinum during operation under reactive conditions require their oxidative regeneration, with the platinum cycling between clusters and cations. The intermediate platinum species have remained only incompletely understood. Here, we report an experimental and theoretical investigation of the structure, bonding, and local environment of cationic platinum species in zeolite ZSM-5, which are key intermediates in this cycling. Upon exposure of platinum clusters to O2 at 700 °C, oxidative fragmentation occurs, and Pt2+ ions are stabilized at six-membered rings in the zeolite that contain paired aluminum sites. When exposed to CO under mild conditions, these Pt2+ ions form highly uniform platinum gem-dicarbonyls, which can be converted in H2 to Ptδ+ monocarbonyls. This conversion, which weakens the platinum-zeolite bonding, is a first step toward platinum migration and aggregation into clusters. X-ray absorption and infrared spectra provide evidence of the reductive and oxidative transformations in various gas environments. The chemistry is general, as shown by the observation of platinum gem-dicarbonyls in several commercially used zeolites (ZSM-5, Beta, mordenite, and Y).
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Affiliation(s)
- Noah Felvey
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Jiawei Guo
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Rachita Rana
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Le Xu
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Simon R Bare
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States
| | - Bruce C Gates
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Alexander Katz
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
| | - Ambarish R Kulkarni
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Ron C Runnebaum
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
| | - Coleman X Kronawitter
- Department of Chemical Engineering, University of California, Davis, California 95616, United States
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9
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A DFT study on the mechanism of NO and N2O decomposition catalysed by Cu(I) pairs in Cu-ZSM-5: Revisited reactivity at the M6 ring. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112206] [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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10
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González-Crisostomo JC, López-Juárez R, Yocupicio-Gaxiola RI, Villanueva E, Zavala-Flores E, Petranovskii V. Chabazite Synthesis and Its Exchange with Ti, Zn, Cu, Ag and Au for Efficient Photocatalytic Degradation of Methylene Blue Dye. Int J Mol Sci 2022; 23:ijms23031730. [PMID: 35163652 PMCID: PMC8836194 DOI: 10.3390/ijms23031730] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/19/2022] [Accepted: 01/30/2022] [Indexed: 02/06/2023] Open
Abstract
A chabazite-type zeolite was prepared by the hydrothermal method. Before ion exchange, the chabazite was activated with ammonium chloride (NH4Cl). The ion exchange process was carried out at a controlled temperature and constant stirring to obtain ion-exchanged chabazites of Ti4+ chabazite (TiCHA), Zn2+ chabazite (ZnCHA), Cu2+ chabazite (CuCHA), Ag+ chabazite (AgCHA) and Au3+ chabazite (AuCHA). Modified chabazite samples were characterized by X-ray diffraction (XRD), scanning electron microscope equipped with energy-dispersive spectroscopy (SEM-EDS), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), N2 adsorption methods and UV–visible diffuse reflectance spectroscopy (DRS). XRD results revealed that the chabazite structure did not undergo any modification during the exchange treatments. The photocatalytic activity of chabazite samples was evaluated by the degradation of methylene blue (MB) in the presence of H2O2 under ultraviolet (UV) light illumination. The photodegradation results showed a higher degradation efficiency of modified chabazites, compared to the synthesized chabazite. CuCHA showed an efficiency of 98.92% in MB degradation, with a constant of k = 0.0266 min−1 following a first-order kinetic mechanism. Then, it was demonstrated that the modified chabazites could be used for the photodegradation of dyes.
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Affiliation(s)
- José C. González-Crisostomo
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autonoma de México, Km 107 Carretera Tijuana-Ensenada, Ensenada 22800, Mexico; (R.I.Y.-G.); (V.P.)
- Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma de Baja California, Calzada Tecnológico, Mesa de Otay, Tijuana 22390, Mexico;
- Correspondence:
| | - Rigoberto López-Juárez
- Instituto de Investigaciones en Materiales, Unidad Morelia, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro, ExHacienda San José de la Huerta, Morelia 58190, Mexico;
| | - Rosario Isidro Yocupicio-Gaxiola
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autonoma de México, Km 107 Carretera Tijuana-Ensenada, Ensenada 22800, Mexico; (R.I.Y.-G.); (V.P.)
| | - Eric Villanueva
- Facultad de Ciencias de la Ingeniería y Tecnología, Unidad Valle de las Palmas, Universidad Autónoma de Baja California, Blvd. Universitario, Tijuana 2150018, Mexico;
| | - Ethiel Zavala-Flores
- Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma de Baja California, Calzada Tecnológico, Mesa de Otay, Tijuana 22390, Mexico;
| | - Vitalii Petranovskii
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autonoma de México, Km 107 Carretera Tijuana-Ensenada, Ensenada 22800, Mexico; (R.I.Y.-G.); (V.P.)
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11
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Skukauskas V, Silverwood IP, Gibson EK. Dynamics of water within Cu-loaded zeolites: A quasielastic neutron scattering study. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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12
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Langman JB, Sandlin WR, Waynant K, Traver-Greene M, Moberly JG. Clinoptilolite and iron sorption/desorption under multiple pH conditions: Testing a substrate for passive treatment of acidic, iron-rich solutions. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2021; 93:1714-1721. [PMID: 33721394 DOI: 10.1002/wer.1557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
Equilibrium sorption and desorption experiments were conducted with clinoptilolite to evaluate the potential sorption/desorption of iron during different pH conditions. Sorption experiments indicated a partitioning of 0% to 17% of the iron in solution given pH of 2 to 4. The pH 2 solution was able to desorb 70% of the iron that was captured from a pH 3 solution. The largest desorption and sorption of iron and corresponding pH represent the end points of iron capture primarily by sorption/exchange. These endpoints are the estimated pHpzc of 2.5 and the initial precipitation point of iron(II) at pH ~3.5. This acidity range is where clinoptilolite is able to capture iron without precipitation or the occurrence of full surface protonation. The inability of the highest acidity to remove all sorbed iron represents the greater bound iron that will not readily desorb with a change in pH. This retained iron creates a metastable state of the clinoptilolite that has a lower sorption capacity but reflects the ability of clinoptilolite to retain a sorbed transition metal with changes in pH. As pH varies, clinoptilolite may evolve in a sequence of metastable states reflective of its ability to capture or retain metals. PRACTITIONER POINTS: Clinoptilolite is a capable reactive substrate, but its sorption/exchange effectiveness at low and variable pH and ability to retain captured metals was unknown. Clinoptilolite retains its metal capture properties to a pH of 2.5 where surface protonation and mineral degradation likely occurs. The ability of clinoptilolite to retain captured iron under greater acidity reflects an evolution of its sorption/retention capacity.
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Affiliation(s)
- Jeff B Langman
- Department of Geography & Geological Sciences, University of Idaho, Moscow, ID, USA
| | - Wes R Sandlin
- Department of Geography & Geological Sciences, University of Idaho, Moscow, ID, USA
| | - Kris Waynant
- Department of Chemistry, University of Idaho, Moscow, ID, USA
| | | | - James G Moberly
- Department of Chemical & Biological Engineering, University of Idaho, Moscow, ID, USA
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13
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Lopes M, Coutinho T, Farinas C. Modification of zeolite with metallic ions improves the immobilization of phytase. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.102137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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14
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Jajko G, Kozyra P, Strzempek M, Indyka P, Zając M, Witkowski S, Piskorz W. Structural Studies of Aluminated form of Zeolites-EXAFS and XRD Experiment, STEM Micrography, and DFT Modelling. Molecules 2021; 26:3566. [PMID: 34200976 PMCID: PMC8230598 DOI: 10.3390/molecules26123566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 05/27/2021] [Accepted: 06/07/2021] [Indexed: 11/30/2022] Open
Abstract
In this article, the results of computational structural studies on Al-containing zeolites, via periodic DFT + D modelling and FDM (Finite Difference Method) to solve the Schrödinger equation (FDMNES) for XAS simulations, corroborated by EXAFS (Extended X-ray Absorption Fine Structure) spectroscopy and PXRD (powder X-ray diffractometry), are presented. The applicability of Radial Distribution Function (RDF) to screen out the postulated zeolite structure is also discussed. The structural conclusions are further verified by HR-TEM imaging.
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Affiliation(s)
- Gabriela Jajko
- Faculty of Chemistry, Jagiellonian University, ul. Gronostajowa 2, 30-387 Kraków, Poland; (G.J.); (P.K.); (M.S.); (P.I.); (S.W.)
| | - Paweł Kozyra
- Faculty of Chemistry, Jagiellonian University, ul. Gronostajowa 2, 30-387 Kraków, Poland; (G.J.); (P.K.); (M.S.); (P.I.); (S.W.)
| | - Maciej Strzempek
- Faculty of Chemistry, Jagiellonian University, ul. Gronostajowa 2, 30-387 Kraków, Poland; (G.J.); (P.K.); (M.S.); (P.I.); (S.W.)
| | - Paulina Indyka
- Faculty of Chemistry, Jagiellonian University, ul. Gronostajowa 2, 30-387 Kraków, Poland; (G.J.); (P.K.); (M.S.); (P.I.); (S.W.)
- Małopolska Centre of Biotechnology, ul. Gronostajowa 7A, 30-387 Kraków, Poland
| | - Marcin Zając
- National Synchrotron Radiation Centre SOLARIS, Jagiellonian University, ul. Czerwone Maki 98, 30-392 Kraków, Poland;
| | - Stefan Witkowski
- Faculty of Chemistry, Jagiellonian University, ul. Gronostajowa 2, 30-387 Kraków, Poland; (G.J.); (P.K.); (M.S.); (P.I.); (S.W.)
| | - Witold Piskorz
- Faculty of Chemistry, Jagiellonian University, ul. Gronostajowa 2, 30-387 Kraków, Poland; (G.J.); (P.K.); (M.S.); (P.I.); (S.W.)
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15
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Ezazi AA, Gao W, Powers DC. Leveraging Exchange Kinetics for the Synthesis of Atomically Precise Porous Catalysts. ChemCatChem 2021. [DOI: 10.1002/cctc.202002034] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Andrew A. Ezazi
- Department of Chemistry Texas A&M University College Station Texas TX 77843 USA
| | - Wen‐Yang Gao
- Department of Chemistry Texas A&M University College Station Texas TX 77843 USA
- Department of Chemistry New Mexico Institute of Mining and Technology Socorro NM 87801 USA
| | - David C. Powers
- Department of Chemistry Texas A&M University College Station Texas TX 77843 USA
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16
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Knorpp AJ, Pinar AB, Baerlocher C, McCusker LB, Casati N, Newton MA, Checchia S, Meyet J, Palagin D, Bokhoven JA. Paired Copper Monomers in Zeolite Omega: The Active Site for Methane‐to‐Methanol Conversion. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202014030] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Amy J. Knorpp
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Ana B. Pinar
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institut 5232 Villigen PSI Switzerland
| | - Christian Baerlocher
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Lynne B. McCusker
- Department of Materials ETH Zürich Vladimir-Prelog-Weg 5 8093 Zürich Switzerland
| | - Nicola Casati
- Laboratory for Synchrotron Radiation—Condensed Matter Paul Scherrer Institut 5232 Villigen Switzerland
| | - Mark A. Newton
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Stefano Checchia
- ID 15A European Synchrotron Radiation Facility 71 Avenue des Martyrs 38000 Grenoble France
| | - Jordan Meyet
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Dennis Palagin
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institut 5232 Villigen PSI Switzerland
| | - Jeroen A. Bokhoven
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institut 5232 Villigen PSI Switzerland
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17
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Zhang Y, Xu X. Predictions of adsorption energies of methane-related species on Cu-based alloys through machine learning. MACHINE LEARNING WITH APPLICATIONS 2021. [DOI: 10.1016/j.mlwa.2020.100010] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
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18
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Knorpp AJ, Pinar AB, Baerlocher C, McCusker LB, Casati N, Newton MA, Checchia S, Meyet J, Palagin D, Bokhoven JA. Paired Copper Monomers in Zeolite Omega: The Active Site for Methane‐to‐Methanol Conversion. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/anie.202014030] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Amy J. Knorpp
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Ana B. Pinar
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institut 5232 Villigen PSI Switzerland
| | - Christian Baerlocher
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Lynne B. McCusker
- Department of Materials ETH Zürich Vladimir-Prelog-Weg 5 8093 Zürich Switzerland
| | - Nicola Casati
- Laboratory for Synchrotron Radiation—Condensed Matter Paul Scherrer Institut 5232 Villigen Switzerland
| | - Mark A. Newton
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Stefano Checchia
- ID 15A European Synchrotron Radiation Facility 71 Avenue des Martyrs 38000 Grenoble France
| | - Jordan Meyet
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
| | - Dennis Palagin
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institut 5232 Villigen PSI Switzerland
| | - Jeroen A. Bokhoven
- Institute for Chemistry and Bioengineering ETH Zürich Vladimir-Prelog-Weg 1 8093 Zürich Switzerland
- Laboratory for Catalysis and Sustainable Chemistry Paul Scherrer Institut 5232 Villigen PSI Switzerland
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19
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Nunthakitgoson W, Thivasasith A, Maihom T, Wattanakit C. Effects of single and double active sites of Cu oxide clusters over the MFI zeolite for direct conversion of methane to methanol: DFT calculations. Phys Chem Chem Phys 2021; 23:2500-2510. [PMID: 33465219 DOI: 10.1039/d0cp05435f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In this work, we investigate the effect of various species of Cu oxide clusters including single and double active sites incorporated in the MFI zeolite framework for the direct conversion of methane to methanol. An M06-2X density functional calculation is employed to fine-tune the suitable number and species of active sites and to provide insights into the effect of the active sites on the reaction mechanism of methane to methanol. Two models, single and double active sites of Cu oxide clusters, have been chosen, in which the single active site of Cu oxide clusters, (mono(μ-oxo)dicopper(ii)), is located at the Al1'-Al12' pair ([Cu(μ-O)Cu]2+@Al1'-Al12'/MFI) or at the Al6-Al7 pair ([Cu(μ-O)Cu]2+@Al6-Al7/MFI) in the MFI framework. For the double active sites of Cu oxide clusters, two species of double active sites of Cu oxide are considered. The first one is the double active site of mono(μ-oxo)dicopper(ii) containingtwo Al-Al pairs (Al1'-Al12' and Al6-Al7 pairs) in the MFI framework (2[Cu(μ-O)Cu]2+/MFI) and the other is the double active site of trans-μ-1,2-peroxo dicopper(ii), which occupies two Al-Al pairs (Al1'-Al12' and Al6-Al7 pairs) in the MFI framework (2[Cu(μ-1,2-peroxo)Cu]2+/MFI). Furthermore, the activation energy for C-H bond dissociation in direct methane conversion to methanol is considered. Compared with the single active site of [Cu(μ-O)Cu]2+/MFI, the double active sites, in particular (2[Cu(μ-O)Cu]2+/MFI), exhibited the lowest activation energy, approximately 12.5 kcal mol-1. The high charge transfer between activated methane and Cu oxide active sites and also the high negative partial charge at the bridging oxygen of Cu oxide active sites, which directly interact with the methane molecule and abstracts its H atom, are considered as the important factors which affect the catalytic activity of Cu oxide clusters for direct methane conversion to methanol. These findings strongly support that the number and species of Cu oxide active sites incorporated in the MFI framework can highly affect the reaction mechanism of methane to methanol.
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Affiliation(s)
- Watinee Nunthakitgoson
- Department of Chemical and Biomolecular Engineering, School of Energy Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Rayong 21210, Thailand.
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20
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Abstract
Metal organic frameworks (MOFs) are porous crystalline solids whose frameworks are constituted by metal ions/nodes with rigid organic linkers leading to the formation of materials having high surface area and pore volume. One of the unique features of MOFs is the presence of coordinatively unsaturated metal sites in their crystalline lattice that can act as Lewis acid sites promoting organic transformations, including aerobic oxidation reactions of various substrates such as hydrocarbons, alcohols, and sulfides. This review article summarizes the existing Co-based MOFs for oxidation reactions organized according to the nature of substrates like hydrocarbon, alcohol, olefin, and water. Both aerobic conditions and peroxide oxidants are discussed. Emphasis is placed on comparing the advantages of using MOFs as solid catalysts with respect to homogeneous salts in terms of product selectivity and long-term stability. The final section provides our view on future developments in this field.
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21
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VanNatta PE, Ramirez DA, Velarde AR, Ali G, Kieber-Emmons MT. Exceptionally High O–H Bond Dissociation Free Energy of a Dicopper(II) μ-Hydroxo Complex and Insights into the Geometric and Electronic Structure Origins Thereof. J Am Chem Soc 2020; 142:16292-16312. [DOI: 10.1021/jacs.0c06425] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Peter E. VanNatta
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112-0850, United States
| | - David A. Ramirez
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112-0850, United States
| | - Andres R. Velarde
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112-0850, United States
| | - Ghazanfar Ali
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112-0850, United States
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22
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Brazeau SE, Pope F, Huang VL, Anklin C, Rheingold AL, Doerrer LH. Phosphine ligands as protecting groups for 3d complexes in oxidation by O2. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114609] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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23
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Shteinman AA. Bioinspired Oxidation of Methane: From Academic Models of Methane Monooxygenases to Direct Conversion of Methane to Methanol. KINETICS AND CATALYSIS 2020. [DOI: 10.1134/s0023158420030180] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Juneau M, Liu R, Peng Y, Malge A, Ma Z, Porosoff MD. Characterization of Metal‐zeolite Composite Catalysts: Determining the Environment of the Active Phase. ChemCatChem 2020. [DOI: 10.1002/cctc.201902039] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Mitchell Juneau
- Department of Chemical EngineeringUniversity of Rochester Rochester NY-14627 USA
| | - Renjie Liu
- Department of Chemical EngineeringUniversity of Rochester Rochester NY-14627 USA
| | - Yikang Peng
- Department of Chemical EngineeringUniversity of Rochester Rochester NY-14627 USA
| | - Akhilesh Malge
- Department of Chemical EngineeringUniversity of Rochester Rochester NY-14627 USA
| | - Zhiqiang Ma
- Department of Chemical EngineeringUniversity of Rochester Rochester NY-14627 USA
| | - Marc D. Porosoff
- Department of Chemical EngineeringUniversity of Rochester Rochester NY-14627 USA
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25
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Kvande K, Pappas DK, Borfecchia E, Lomachenko KA. Advanced X‐ray Absorption Spectroscopy Analysis to Determine Structure‐Activity Relationships for Cu‐Zeolites in the Direct Conversion of Methane to Methanol. ChemCatChem 2020. [DOI: 10.1002/cctc.201902371] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Karoline Kvande
- Centre for Materials Science and Nanotechnology Department of Chemistry University of Oslo Sem Sælands vei 26 0371 Oslo Norway
| | - Dimitrios K. Pappas
- Centre for Materials Science and Nanotechnology Department of Chemistry University of Oslo Sem Sælands vei 26 0371 Oslo Norway
| | - Elisa Borfecchia
- Department of Chemistry, NIS Center and INSTM Reference Center University of Turin Via P. Giuria 7 10125 Turin Italy
| | - Kirill A. Lomachenko
- European Synchrotron Radiation Facility 71 Avenue des Martyrs, CS 40220 Grenoble Cedex 9 38043 France
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26
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Zhao X, Xu J, Deng F. Solid-state NMR for metal-containing zeolites: From active sites to reaction mechanism. Front Chem Sci Eng 2020. [DOI: 10.1007/s11705-019-1885-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Newton MA, Knorpp AJ, Sushkevich VL, Palagin D, van Bokhoven JA. Active sites and mechanisms in the direct conversion of methane to methanol using Cu in zeolitic hosts: a critical examination. Chem Soc Rev 2020; 49:1449-1486. [DOI: 10.1039/c7cs00709d] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this critical review we examine the current state of our knowledge in respect of the nature of the active sites in copper containing zeolites for the selective conversion of methane to methanol.
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Affiliation(s)
- Mark A. Newton
- Institute for Chemical and Bioengineering
- ETH Zurich
- 8093 Zürich
- Switzerland
| | - Amy J. Knorpp
- Institute for Chemical and Bioengineering
- ETH Zurich
- 8093 Zürich
- Switzerland
| | - Vitaly L. Sushkevich
- Laboratory for Catalysis and Sustainable Chemistry
- Paul Scherrer Institute
- 5232 Villigen
- Switzerland
| | - Dennis Palagin
- Laboratory for Catalysis and Sustainable Chemistry
- Paul Scherrer Institute
- 5232 Villigen
- Switzerland
| | - Jeroen A. van Bokhoven
- Institute for Chemical and Bioengineering
- ETH Zurich
- 8093 Zürich
- Switzerland
- Laboratory for Catalysis and Sustainable Chemistry
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28
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Wang X, Arvidsson AA, Skoglundh M, Hellman A, Carlsson PA. Desorption products during linear heating of copper zeolites with pre-adsorbed methanol. Phys Chem Chem Phys 2020; 22:6809-6817. [DOI: 10.1039/c9cp05479k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Study of desorption products from Cu-zeolites (MFI and CHA) during methanol-TPD using a chemical flow reactor with a gas phase FTIR spectrometer.
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Affiliation(s)
- Xueting Wang
- Department of Chemistry and Chemical Engineering
- Chalmers University of Technology
- 412 96 Gothenburg
- Sweden
- Competence Centre for Catalysis
| | - Adam A. Arvidsson
- Competence Centre for Catalysis
- Chalmers University of Technology
- 412 96 Gothenburg
- Sweden
- Department of Physics
| | - Magnus Skoglundh
- Department of Chemistry and Chemical Engineering
- Chalmers University of Technology
- 412 96 Gothenburg
- Sweden
- Competence Centre for Catalysis
| | - Anders Hellman
- Competence Centre for Catalysis
- Chalmers University of Technology
- 412 96 Gothenburg
- Sweden
- Department of Physics
| | - Per-Anders Carlsson
- Department of Chemistry and Chemical Engineering
- Chalmers University of Technology
- 412 96 Gothenburg
- Sweden
- Competence Centre for Catalysis
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29
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Tao L, Lee I, Sanchez-Sanchez M. Cu oxo nanoclusters for direct oxidation of methane to methanol: formation, structure and catalytic performance. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01325k] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cu oxo nanoclusters hosted in microporous solids have emerged in the past decades as promising materials for catalyzing the selective conversion of methane to methanol.
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Affiliation(s)
- Lei Tao
- Department of Chemistry and Catalysis Research Center
- Technische Universität München
- D-85748 Garching
- Germany
| | - Insu Lee
- Department of Chemistry and Catalysis Research Center
- Technische Universität München
- D-85748 Garching
- Germany
| | - Maricruz Sanchez-Sanchez
- Department of Chemistry and Catalysis Research Center
- Technische Universität München
- D-85748 Garching
- Germany
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30
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Xiao P, Osuga R, Wang Y, Kondo JN, Yokoi T. Bimetallic Fe–Cu/beta zeolite catalysts for direct hydroxylation of benzene to phenol: effect of the sequence of ion exchange for Fe and Cu cations. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01216e] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Recently, bimetallic cation-exchanged zeolite catalysts have received much attention.
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Affiliation(s)
- Peipei Xiao
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Ryota Osuga
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Yong Wang
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Junko N. Kondo
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Toshiyuki Yokoi
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
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31
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Unjaroen D, Gericke R, Lovisari M, Nelis D, Mondal P, Pirovano P, Twamley B, Farquhar ER, McDonald AR. High-Valent d 7 Ni III versus d 8 Cu III Oxidants in PCET. Inorg Chem 2019; 58:16838-16848. [PMID: 31804808 DOI: 10.1021/acs.inorgchem.9b03101] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Oxygenases have been postulated to utilize d4 FeIV and d8 CuIII oxidants in proton-coupled electron transfer (PCET) hydrocarbon oxidation. In order to explore the influence the metal ion and d-electron count can hold over the PCET reactivity, two metastable high-valent metal-oxygen adducts, [NiIII(OAc)(L)] (1b) and [CuIII(OAc)(L)] (2b), L = N,N'-(2,6-diisopropylphenyl)-2,6-pyridinedicarboxamidate, were prepared from their low-valent precursors [NiII(OAc)(L)]- (1a) and [CuII(OAc)(L)]- (2a). The complexes 1a/b-2a/b were characterized using nuclear magnetic resonance, Fourier transform infrared, electron paramagnetic resonance, X-ray diffraction, and absorption spectroscopies and mass spectrometry. Both complexes were capable of activating substrates through a concerted PCET mechanism (hydrogen atom transfer, HAT, or concerted proton and electron transfer, CPET). The reactivity of 1b and 2b toward a series of para-substituted 2,6-di-tert-butylphenols (p-X-2,6-DTBP; X = OCH3, C(CH3)3, CH3, H, Br, CN, NO2) was studied, showing similar rates of reaction for both complexes. In the oxidation of xanthene, the d8 CuIII oxidant displayed a small increase in the rate constant compared to that of the d7 NiIII oxidant. The d8 CuIII oxidant was capable of oxidizing a large family of hydrocarbon substrates with bond dissociation enthalpy (BDEC-H) values up to 90 kcal/mol. It was previously observed that exchanging the ancillary anionic donor ligand in such complexes resulted in a 20-fold enhancement in the rate constant, an observation that is further enforced by comparison of 1b and 2b to the literature precedents. In contrast, we observed only minor differences in the rate constants upon comparing 1b to 2b. It was thus concluded that in this case the metal ion has a minor impact, while the ancillary donor ligand yields more kinetic control over HAT/CPET oxidation.
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Affiliation(s)
- Duenpen Unjaroen
- School of Chemistry, Trinity College Dublin , The University of Dublin , College Green , Dublin 2 , Ireland
| | - Robert Gericke
- School of Chemistry, Trinity College Dublin , The University of Dublin , College Green , Dublin 2 , Ireland
| | - Marta Lovisari
- School of Chemistry, Trinity College Dublin , The University of Dublin , College Green , Dublin 2 , Ireland
| | - Daniel Nelis
- School of Chemistry, Trinity College Dublin , The University of Dublin , College Green , Dublin 2 , Ireland
| | - Prasenjit Mondal
- School of Chemistry, Trinity College Dublin , The University of Dublin , College Green , Dublin 2 , Ireland
| | - Paolo Pirovano
- School of Chemistry, Trinity College Dublin , The University of Dublin , College Green , Dublin 2 , Ireland
| | - Brendan Twamley
- School of Chemistry, Trinity College Dublin , The University of Dublin , College Green , Dublin 2 , Ireland
| | - Erik R Farquhar
- Case Western Reserve University Center for Synchrotron Biosciences, National Synchrotron Light Source II , Brookhaven National Laboratory II , Upton , New York 11973 , United States
| | - Aidan R McDonald
- School of Chemistry, Trinity College Dublin , The University of Dublin , College Green , Dublin 2 , Ireland
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32
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Wang G, Chen W, Huang L, Liu Z, Sun X, Zheng A. Reactivity descriptors of diverse copper-oxo species on ZSM-5 zeolite towards methane activation. Catal Today 2019. [DOI: 10.1016/j.cattod.2019.05.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Batra MS, Dwivedi R, Prasad R. Recent Developments in Heterogeneous Catalyzed Epoxidation of Styrene to Styrene Oxide. ChemistrySelect 2019. [DOI: 10.1002/slct.201902396] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
| | - Ritambhara Dwivedi
- School of Chemical SciencesDevi Ahilya University Takshashila Campus Khandwa Road Indore 452001 India
| | - Rajendra Prasad
- School of Chemical SciencesDevi Ahilya University Takshashila Campus Khandwa Road Indore 452001 India
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34
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Shi Y, Liu S, Liu Y, Huang W, Guan G, Zuo Z. Quasicatalytic and catalytic selective oxidation of methane to methanol over solid materials: a review on the roles of water. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2019. [DOI: 10.1080/01614940.2019.1674475] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Yayun Shi
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, Shanxi, China
| | - Shizhong Liu
- Department of Chemistry, Stony Brook University, New York, NY, USA
| | - Yiming Liu
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, Shanxi, China
| | - Wei Huang
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, Shanxi, China
| | - Guoqing Guan
- Institute of Regional Innovation (IRI), Hirosaki University, Aomori, Japan
| | - Zhijun Zuo
- Key Laboratory of Coal Science and Technology of Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan, Shanxi, China
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35
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Ruthusree S, Sundarrajan S, Ramakrishna S. Progress and Perspectives on Ceramic Membranes for Solvent Recovery. MEMBRANES 2019; 9:membranes9100128. [PMID: 31590261 PMCID: PMC6835421 DOI: 10.3390/membranes9100128] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Revised: 09/11/2019] [Accepted: 09/23/2019] [Indexed: 11/16/2022]
Abstract
With the increase in demand for commodities in the world, it is advisable to conserve resources. In the case of liquid wastes generated from pharmaceutical and petroleum industries, an unconventional solution is provided for the regeneration of solvents. However, this solvent recovery can be carried out using various efficient methods. Recently, Mixed Matrix Membranes (MMM) obtained by the addition of nanoparticles into a polymer matrix as reinforcements, or using a material with a well-defined inorganic network as a membrane like zeolite, silica based, Zeolite imidazolate frameworks (ZIFs) and Metal organic frameworks (MOFs), were explored for a solvent recovery process. These membranes possess characteristics such as high selectivity, flux and stability at various environmental conditions for the solvent recovery process. In this review, we have covered the polymer, nanocomposites, and ceramic membranes for solvent recovery through the pervaporation and organic solvent nanofiltration processes. The key challenges faced by the materials such as MOFs, zeolite, silica, zeolite and ZIFs when they are fabricated (through in situ synthesis or secondary growth process) as membranes and separation of solvents to explore for the solvent recovery process are reviewed.
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Affiliation(s)
- Senthilnathan Ruthusree
- Center for Nanofibers and Nanotechnology Lab, Mechanical Engineering, National University of Singapore, Blk E3 05-12, 2 Engineering Drive 3, Singapore 117581, Singapore.
| | - Subramanian Sundarrajan
- Center for Nanofibers and Nanotechnology Lab, Mechanical Engineering, National University of Singapore, Blk E3 05-12, 2 Engineering Drive 3, Singapore 117581, Singapore.
| | - Seeram Ramakrishna
- Center for Nanofibers and Nanotechnology Lab, Mechanical Engineering, National University of Singapore, Blk E3 05-12, 2 Engineering Drive 3, Singapore 117581, Singapore.
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36
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Li W, Sun L, Xie L, Deng X, Guan N, Li L. Coordinatively unsaturated sites in zeolite matrix: Construction and catalysis. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(19)63381-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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37
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Brezicki G, Kammert JD, Gunnoe TB, Paolucci C, Davis RJ. Insights into the Speciation of Cu in the Cu-H-Mordenite Catalyst for the Oxidation of Methane to Methanol. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00852] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gordon Brezicki
- Department of Chemical Engineering, University of Virginia, 102 Engineer’s Way, P.O. Box 400741, Charlottesville, Virginia 22904-4741, United States
| | - James D. Kammert
- Department of Chemical Engineering, University of Virginia, 102 Engineer’s Way, P.O. Box 400741, Charlottesville, Virginia 22904-4741, United States
| | - T. Brent Gunnoe
- Department of Chemistry, University of Virginia, McCormick Road,
P.O. Box 400319, Charlottesville, Virginia 22904-4741, United States
| | - Christopher Paolucci
- Department of Chemical Engineering, University of Virginia, 102 Engineer’s Way, P.O. Box 400741, Charlottesville, Virginia 22904-4741, United States
| | - Robert J. Davis
- Department of Chemical Engineering, University of Virginia, 102 Engineer’s Way, P.O. Box 400741, Charlottesville, Virginia 22904-4741, United States
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Radnik J, Dang TTH, Gatla S, Raghuwanshi VS, Tatchev D, Hoell A. Identifying the location of Cu ions in nanostructured SAPO-5 molecular sieves and its impact on the redox properties. RSC Adv 2019; 9:6429-6437. [PMID: 35518502 PMCID: PMC9060918 DOI: 10.1039/c8ra10417d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 01/31/2019] [Indexed: 11/21/2022] Open
Abstract
Combining X-ray Absorption Fine Spectroscopy (XAFS) with Anomalous Small-Angle X-ray Scattering (ASAXS) determines the location of Cu2+ ions in silicoaluminophosphate (SAPO-5) frameworks prepared by hydrothermal crystallization or impregnation. As expected, for the hydrothermally prepared sample, incorporation in the SAPO-5 framework was observed. For the first time preferential location of Cu2+ ions at the inner and outer surfaces of the framework is determined. Temperature-Programmed Reduction (TPR) and X-ray Photoelectron Spectroscopy (XPS) investigations demonstrated that such Cu2+ is stable in an argon (Ar) atmosphere up to 550 °C and can only be reduced under a hydrogen atmosphere. In contrast, Cu2+ deposited by impregnation on the pure SAPO-5 framework can be easily reduced to Cu+ in an Ar atmosphere. At lower Cu amounts, mononuclear tetrahedrally coordinated Cu species were formed which are relatively stable in the monovalent form. In contrast, at higher Cu amounts, CuO particles were found which change easily between the mono- and bivalent species.
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Affiliation(s)
- Jörg Radnik
- Federal Institute for Material Research and Testing (BAM) Unter den Eichen 44-46 12203 Berlin Germany
| | - Thi Thuy Hanh Dang
- National Key Laboratory of Petrochemistry and Refinery Technologies, Vietnam Institute of Industrial Chemistry 2 Pham Ngu Lao Hanoi Vietnam
| | - Suresh Gatla
- ESRF-The European Synchrotron 71, Avenue des Martyrs 38000 Grenoble France
| | - Vikram Singh Raghuwanshi
- Humboldt University of Berlin, Institute of Chemistry Brook-Tayler-Str. 2 12489 Berlin Germany.,Helmholtz-Zentrum Berlin für Materialien und Energie Hahn-Meitner Platz 1 114109 Berlin Germany
| | - Dragomir Tatchev
- Institute of Physical Chemistry - Bulgarian Academy of Sciences Akad. G. Bonchev Str. Bl. 11 1113 Sofia Bulgaria
| | - Armin Hoell
- Helmholtz-Zentrum Berlin für Materialien und Energie Hahn-Meitner Platz 1 114109 Berlin Germany
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Li H, Paolucci C, Khurana I, Wilcox LN, Göltl F, Albarracin-Caballero JD, Shih AJ, Ribeiro FH, Gounder R, Schneider WF. Consequences of exchange-site heterogeneity and dynamics on the UV-visible spectrum of Cu-exchanged SSZ-13. Chem Sci 2018; 10:2373-2384. [PMID: 30881665 PMCID: PMC6385673 DOI: 10.1039/c8sc05056b] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 12/27/2018] [Indexed: 11/21/2022] Open
Abstract
Theory and experiment reveal relationships between observed UV-visible spectra and ion exchange site types, ion nuclearity, and finite-temperature dynamics in Cu exchanged chabazite (SSZ-13) zeolites.
The speciation and structure of Cu ions and complexes in chabazite (SSZ-13) zeolites, which are relevant catalysts for nitrogen oxide reduction and partial methane oxidation, depend on material composition and reaction environment. Ultraviolet-visible (UV-Vis) spectra of Cu-SSZ-13 zeolites synthesized to contain specific Cu site motifs, together with ab initio molecular dynamics and time-dependent density functional theory calculations, were used to test the ability to relate specific spectroscopic signatures to specific site motifs. Geometrically distinct arrangements of two framework Al atoms in six-membered rings are found to exchange Cu2+ ions that become spectroscopically indistinguishable after accounting for the finite-temperature fluctuations of the Cu coordination environment. Nominally homogeneous single Al exchange sites are found to exchange a heterogeneous mixture of [CuOH]+ monomers, O- and OH-bridged Cu dimers, and larger polynuclear complexes. The UV-Vis spectra of the latter are sensitive to framework Al proximity, to precise ligand environment, and to finite-temperature structural fluctuations, precluding the precise assignment of spectroscopic features to specific Cu structures. In all Cu-SSZ-13 samples, these dimers and larger complexes are reduced by CO to Cu+ sites at 523 K, leaving behind isolated [CuOH]+ sites with a characteristic spectroscopic identity. The various mononuclear and polynuclear Cu2+ species are distinguishable by their different responses to reducing environments, with implications for their relevance to catalytic redox reactions.
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Affiliation(s)
- Hui Li
- Department of Chemical and Biomolecular Engineering , University of Notre Dame , 182 Fitzpatrick Hall , Notre Dame , IN 46556 , USA .
| | - Christopher Paolucci
- Department of Chemical and Biomolecular Engineering , University of Notre Dame , 182 Fitzpatrick Hall , Notre Dame , IN 46556 , USA . .,Department of Chemical Engineering , University of Virginia , 102 Engineer's Way , Charlottesville , VA 22904 , USA
| | - Ishant Khurana
- Charles D. Davidson School of Chemical Engineering , Purdue University , 480 Stadium Mall Drive , West Lafayette , IN 47907 , USA .
| | - Laura N Wilcox
- Charles D. Davidson School of Chemical Engineering , Purdue University , 480 Stadium Mall Drive , West Lafayette , IN 47907 , USA .
| | - Florian Göltl
- Department of Chemical and Biological Engineering , University of Wisconsin-Madison , 1415 Engineering Drive , Madison , WI 53706 , USA
| | - Jonatan D Albarracin-Caballero
- Charles D. Davidson School of Chemical Engineering , Purdue University , 480 Stadium Mall Drive , West Lafayette , IN 47907 , USA .
| | - Arthur J Shih
- Charles D. Davidson School of Chemical Engineering , Purdue University , 480 Stadium Mall Drive , West Lafayette , IN 47907 , USA .
| | - Fabio H Ribeiro
- Charles D. Davidson School of Chemical Engineering , Purdue University , 480 Stadium Mall Drive , West Lafayette , IN 47907 , USA .
| | - Rajamani Gounder
- Charles D. Davidson School of Chemical Engineering , Purdue University , 480 Stadium Mall Drive , West Lafayette , IN 47907 , USA .
| | - William F Schneider
- Department of Chemical and Biomolecular Engineering , University of Notre Dame , 182 Fitzpatrick Hall , Notre Dame , IN 46556 , USA .
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40
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Knorpp AJ, Pinar AB, Newton MA, Sushkevich VL, van Bokhoven JA. Copper-Exchanged Omega (MAZ) Zeolite: Copper-concentration Dependent Active Sites and its Unprecedented Methane to Methanol Conversion. ChemCatChem 2018. [DOI: 10.1002/cctc.201801809] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Amy J. Knorpp
- Institute for Chemical and Bioengineering; ETH Zurich; Vladimir-Prelog-Weg 1 Zurich 8093 Switzerland
| | - Ana B. Pinar
- Laboratory for Catalysis and Sustainable Chemistry; Paul Scherrer Institute; Villigen 5232 Switzerland
| | - Mark A. Newton
- Institute for Chemical and Bioengineering; ETH Zurich; Vladimir-Prelog-Weg 1 Zurich 8093 Switzerland
| | - Vitaly L. Sushkevich
- Laboratory for Catalysis and Sustainable Chemistry; Paul Scherrer Institute; Villigen 5232 Switzerland
| | - Jeroen A. van Bokhoven
- Institute for Chemical and Bioengineering; ETH Zurich; Vladimir-Prelog-Weg 1 Zurich 8093 Switzerland
- Laboratory for Catalysis and Sustainable Chemistry; Paul Scherrer Institute; Villigen 5232 Switzerland
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41
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Ghosh S, Acharyya SS, Kaneko T, Higashi K, Yoshida Y, Sasaki T, Iwasawa Y. Confined Single Alkali Metal Ion Platform in a Zeolite Pore for Concerted Benzene C–H Activation to Phenol Catalysis. ACS Catal 2018. [DOI: 10.1021/acscatal.8b03002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | - Takehiko Sasaki
- Graduate School of Frontier Science, The University of Tokyo, Kashiwa, Chiba 277-8561, Japan
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42
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Morpurgo S. The mechanism of NO and N2O decomposition catalyzed by short-distance Cu(I) pairs in Cu-ZSM-5: A DFT study on the possible role of NO and NO2 in the [Cu O Cu]2+ active site reduction. J Catal 2018. [DOI: 10.1016/j.jcat.2018.08.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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43
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Szécsényi Á, Li G, Gascon J, Pidko EA. Unraveling reaction networks behind the catalytic oxidation of methane with H 2O 2 over a mixed-metal MIL-53(Al,Fe) MOF catalyst. Chem Sci 2018; 9:6765-6773. [PMID: 30310609 PMCID: PMC6113888 DOI: 10.1039/c8sc02376j] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 07/20/2018] [Indexed: 01/09/2023] Open
Abstract
Reaction paths underlying the catalytic oxidation of methane with H2O2 over an Fe containing MIL-53(Al) metal-organic framework were studied by periodic DFT calculations. Not only the activation of methane, but the full reaction network was considered, which includes the formation of the active site, the overoxidation of methane to CO2 and the decomposition of H2O2 to H2O and O2. Calculations indicate that the activation barrier for the initial activation of the Fe sites upon reaction with H2O2 is comparable to that of the subsequent C-H activation and also of the reaction steps involved in the undesirable overoxidation processes. The pronounced selectivity of the oxidation reaction over MIL-53(Al,Fe) towards the target mono-oxygenated CH3OH and CH3OOH products is attributed to the limited coordination freedom of the Fe species encapsulated in the extended octahedral [AlO6] structure-forming chains, which effectively prevents the direct overoxidation paths prior to product desorption from the active sites. Importantly, our computational analysis reveals that the active sites for the desired methane oxidation are able to much more efficiently promote the direct catalytic H2O2 decomposition reaction, rendering thus the current combination of the active site and the reactants undesirable for the prospective methane valorization process.
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Affiliation(s)
- Ágnes Szécsényi
- Inorganic Systems Engineering Group , Chemical Engineering Department , Delft University of Technology , Van der Maasweg 9 , 2629 HZ Delft , The Netherlands . ; Tel: +31 1527 81938
- Catalysis Engineering , Chemical Engineering Department , Delft University of Technology , Van der Maasweg 9 , 2629 HZ Delft , the Netherlands
| | - Guanna Li
- Inorganic Systems Engineering Group , Chemical Engineering Department , Delft University of Technology , Van der Maasweg 9 , 2629 HZ Delft , The Netherlands . ; Tel: +31 1527 81938
- Catalysis Engineering , Chemical Engineering Department , Delft University of Technology , Van der Maasweg 9 , 2629 HZ Delft , the Netherlands
| | - Jorge Gascon
- King Abdullah University of Science and Technology , KAUST Catalysis Center , Advanced Catalytic Materials , Thuwal 23955 , Saudi Arabia
| | - Evgeny A Pidko
- Inorganic Systems Engineering Group , Chemical Engineering Department , Delft University of Technology , Van der Maasweg 9 , 2629 HZ Delft , The Netherlands . ; Tel: +31 1527 81938
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44
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Grzybek J, Gil B, Roth WJ, Skoczek M, Kowalczyk A, Chmielarz L. Characterization of Co and Fe-MCM-56 catalysts for NH 3-SCR and N 2O decomposition: An in situ FTIR study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 196:281-288. [PMID: 29459158 DOI: 10.1016/j.saa.2018.02.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 01/24/2018] [Accepted: 02/10/2018] [Indexed: 06/08/2023]
Abstract
Two-step preparation of iron and cobalt-containing MCM-56 zeolites has been undertaken to evaluate the influence of their physicochemical properties in the selective catalytic reduction (NH3-SCR or DeNOx) of NO using NH3 as a reductant. Zeolites were prepared by the selective leaching of the framework cations by concentrated HNO3 solution and NH4F/HF mixture and consecutively, introduction of Co and Fe heteroatoms, in quantities below 1wt%. Further calcination allowed to obtain highly dispersed active species. Their evaluation and speciation was realized by adsorption of pyridine and NO, followed by FTIR spectroscopy. Both Fe-MCM-56 zeolites showed excellent activities (maximum NO conversion 92%) with high selectivity to dinitrogen (above 99%) in the high temperature NH3-SCR process. High catalytic activity of Fe-MCM-56 zeolites was assigned to the formation of stable nitrates, delivering NO to react with NH3 at higher temperatures and suppressing the direct NO oxidation. It was found that more nitrates was formed in Fe-MCM-56 (HNO3) than in Fe-MCM-56 (HF/NH4F) and that could compensate for the lower Fe loading, resulting in very similar catalytic activity of both catalysts. At the same time both Co-and Fe-MCM-56 zeolites were moderately active in direct N2O decomposition, with maximum N2O conversion not higher than 80% and activity window starting at 500°C. This phenomenon was expected since both types of catalysts contained well dispersed active centers, not beneficial for this reaction.
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Affiliation(s)
- Justyna Grzybek
- Faculty of Chemistry, Jagiellonian University in Kraków, Gronostajowa 2, 30-387 Kraków, Poland
| | - Barbara Gil
- Faculty of Chemistry, Jagiellonian University in Kraków, Gronostajowa 2, 30-387 Kraków, Poland.
| | - Wieslaw J Roth
- Faculty of Chemistry, Jagiellonian University in Kraków, Gronostajowa 2, 30-387 Kraków, Poland
| | - Monika Skoczek
- Faculty of Chemistry, Jagiellonian University in Kraków, Gronostajowa 2, 30-387 Kraków, Poland
| | - Andrzej Kowalczyk
- Faculty of Chemistry, Jagiellonian University in Kraków, Gronostajowa 2, 30-387 Kraków, Poland
| | - Lucjan Chmielarz
- Faculty of Chemistry, Jagiellonian University in Kraków, Gronostajowa 2, 30-387 Kraków, Poland
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45
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Sizing up a supercharged ferryl. Proc Natl Acad Sci U S A 2018; 115:4532-4534. [PMID: 29666275 DOI: 10.1073/pnas.1804490115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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46
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Characterization of Metal Centers in Zeolites for Partial Oxidation Reactions. STRUCTURE AND BONDING 2018. [DOI: 10.1007/430_2018_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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47
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Wang G, Huang L, Chen W, Zhou J, Zheng A. Rationally designing mixed Cu–(μ-O)–M (M = Cu, Ag, Zn, Au) centers over zeolite materials with high catalytic activity towards methane activation. Phys Chem Chem Phys 2018; 20:26522-26531. [DOI: 10.1039/c8cp04872j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The direct conversion of methane to methanol on [Cu(μ-O)M]2+ (M = Cu, Ag, Zn, Au) bimetal centers in ZSM-5 zeolite is investigated using periodic DFT for the first time.
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Affiliation(s)
- Guiru Wang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- National Center for Magnetic Resonance in Wuhan
- Key Laboratory of Magnetic Resonance in Biological Systems
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Sciences
| | - Ling Huang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- National Center for Magnetic Resonance in Wuhan
- Key Laboratory of Magnetic Resonance in Biological Systems
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Sciences
| | - Wei Chen
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- National Center for Magnetic Resonance in Wuhan
- Key Laboratory of Magnetic Resonance in Biological Systems
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Sciences
| | - Jian Zhou
- Shanghai Research Institute of Petrochemical Technology
- SINOPEC
- Shanghai 201208
- P. R. China
| | - Anmin Zheng
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics
- National Center for Magnetic Resonance in Wuhan
- Key Laboratory of Magnetic Resonance in Biological Systems
- Wuhan Institute of Physics and Mathematics
- Chinese Academy of Sciences
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48
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Guo X, Wu L, Navrotsky A. Thermodynamic evidence of flexibility in H2O and CO2 absorption of transition metal ion exchanged zeolite LTA. Phys Chem Chem Phys 2018; 20:3970-3978. [DOI: 10.1039/c7cp08188j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Absorption thermodynamics on the framework flexibility of TMI-exchanged zeolite LTA driven by water/CO2 molecules.
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Affiliation(s)
- Xin Guo
- Peter A. Rock Thermochemistry Laboratory and NEAT ORU
- University of California Davis
- Davis
- USA
| | - Lili Wu
- Peter A. Rock Thermochemistry Laboratory and NEAT ORU
- University of California Davis
- Davis
- USA
| | - Alexandra Navrotsky
- Peter A. Rock Thermochemistry Laboratory and NEAT ORU
- University of California Davis
- Davis
- USA
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49
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Yuan J, Zhang W, Li X, Yang J. A high performance catalyst for methane conversion to methanol: graphene supported single atom Co. Chem Commun (Camb) 2018; 54:2284-2287. [DOI: 10.1039/c7cc08713f] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The high reaction efficiency of methane conversion to methanol was predicted over a single atom Co-embedded graphene catalyst.
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Affiliation(s)
- Jinyun Yuan
- School of Material and Chemical Engineering
- Zhengzhou University of Light Industry
- Zhengzhou
- China
- Hefei National Lab for Physical Sciences at Microscale
| | - Wenhua Zhang
- Hefei National Lab for Physical Sciences at Microscale
- University of Science and Technology of China
- Hefei
- China
- Synergetic Innovation Center of Quantum Information & Quantum Physics
| | - Xingxing Li
- Hefei National Lab for Physical Sciences at Microscale
- University of Science and Technology of China
- Hefei
- China
- Synergetic Innovation Center of Quantum Information & Quantum Physics
| | - Jinlong Yang
- Hefei National Lab for Physical Sciences at Microscale
- University of Science and Technology of China
- Hefei
- China
- Synergetic Innovation Center of Quantum Information & Quantum Physics
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50
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Borfecchia E, Beato P, Svelle S, Olsbye U, Lamberti C, Bordiga S. Cu-CHA – a model system for applied selective redox catalysis. Chem Soc Rev 2018; 47:8097-8133. [DOI: 10.1039/c8cs00373d] [Citation(s) in RCA: 160] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
We review the structural chemistry and reactivity of copper-exchanged molecular sieves with chabazite (CHA) topology, as an industrially applied catalyst in ammonia mediated reduction of harmful nitrogen oxides (NH3-SCR) and as a general model system for red-ox active materials (also the recent results in the direct conversion of methane to methanol are considered).
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Affiliation(s)
| | | | - Stian Svelle
- Center for Materials Science and Nanotechnology (SMN)
- Department of Chemistry
- University of Oslo
- N-0315 Oslo
- Norway
| | - Unni Olsbye
- Center for Materials Science and Nanotechnology (SMN)
- Department of Chemistry
- University of Oslo
- N-0315 Oslo
- Norway
| | - Carlo Lamberti
- The Smart Materials Research Institute
- Southern Federal University
- 344090 Rostov-on-Don
- Russia
- Department of Physics
| | - Silvia Bordiga
- Center for Materials Science and Nanotechnology (SMN)
- Department of Chemistry
- University of Oslo
- N-0315 Oslo
- Norway
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