1
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Ahn S, Friedman SK, Notestein JM. Effect of surface modification on silica supported Ti catalysts for cyclohexene oxidation with vapor-phase hydrogen peroxide. RSC Adv 2024; 14:25425-25428. [PMID: 39139225 PMCID: PMC11321206 DOI: 10.1039/d4ra04552a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Accepted: 08/07/2024] [Indexed: 08/15/2024] Open
Abstract
Surface modification via grafting of organic moieties on a Lewis acid catalyst (silica supported Ti catalyst, Ti-SiO2) alters the activation of H2O2 in vapor-phase cyclohexene epoxidation. Grafting a fluorous group (1H,1H-perfluoro-octyl) suppresses activity of Ti-SiO2. Conversely, grafting either a nonpolar group (octyl) or a polar aprotic group (triethylene glycol monomethyl ether) enhances rates and shifts selectivity toward trans-1,2-cyclohexanediol.
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Affiliation(s)
- Sol Ahn
- Department of Chemical Engineering, Chung-Ang University 84 Heukseok-ro, Dongjak-gu Seoul 06974 Republic of Korea
| | | | - Justin M Notestein
- Department of Chemical and Biological Engineering USA
- Center for Catalysis and Surface Science 2145 Sheridan Rd Evanston Illinois 60208 USA
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2
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Lee S, Xie H, Chen Z, Mian MR, Gómez-Torres A, Syed ZH, Reischauer S, Chapman KW, Delferro M, Farha OK. Metal-Organic Frameworks as a Tunable Platform to Deconvolute Stereoelectronic Effects on the Catalytic Activity of Thioanisole Oxidation. J Am Chem Soc 2024; 146:3955-3962. [PMID: 38295514 DOI: 10.1021/jacs.3c11809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024]
Abstract
The local environment of a metal active site plays an important role in affecting the catalytic activity and selectivity. In recent studies, tailoring the behavior of a molybdenum-based active site via modulation of the first coordination sphere has led to improved thioanisole oxidation performance, but disentangling electronic effects from steric influences that arise from these modifications is nontrivial, especially in heterogeneous systems. To this end, the tunability of metal-organic frameworks (MOFs) makes them promising scaffolds for controlling the coordination sphere of a heterogeneous, catalytically active metal site while offering additional attractive features such as crystallinity and high porosity. Herein, we report a variety of MOF-supported Mo species, which were investigated for catalytic thioanisole oxidation to methyl phenyl sulfoxide and/or methyl phenyl sulfone using tert-butyl hydroperoxide (tBHP) as the oxidant. In particular, MOFs of contrasting node architectures were targeted, presenting a unique opportunity to investigate the stereoelectronic control of Mo active sites in a systematic manner. A Zr6-based MOF, NU-1000, was employed along with its sulfated analogue Zr6-based NU-1000-SO4 to anchor a dioxomolybdenum species, which enabled examination of support-mediated active site polarizability on catalytic performance. In addition, a MOF containing a mixed metal node, Mo-MFU-4l, was used to probe the stereoelectronic impact of an N-donor ligand environment on the catalytic activity of the transmetalated Mo center. Characterization techniques, including single crystal X-ray diffraction, were concomitantly used with reaction time course profiles to better comprehend the dynamics of different Mo active sites, thus correlating structural change with activity.
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Affiliation(s)
- Seryeong Lee
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Haomiao Xie
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
| | - Zhihengyu Chen
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States
| | - Mohammad Rasel Mian
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
| | - Alejandra Gómez-Torres
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
| | - Zoha H Syed
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
| | - Susanne Reischauer
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
| | - Karena W Chapman
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States
| | - Massimiliano Delferro
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States
- Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Omar K Farha
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
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3
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Yekke-Ghasemi Z, Heravi MM, Malmir M, Mirzaei M. Efficient oxidation of sulfides to sulfoxides catalyzed by heterogeneous Zr-containing polyoxometalate grafted on graphene oxide. Sci Rep 2023; 13:16752. [PMID: 37798421 PMCID: PMC10556038 DOI: 10.1038/s41598-023-43985-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 10/01/2023] [Indexed: 10/07/2023] Open
Abstract
In this study, a tri-component composite named Zr/SiW12/GO was meticulously prepared through an ultrasonic-assisted method. This composite incorporates zirconium nanoparticles (Lewis acid), a negatively charged Keggin type polyoxometalate, and graphene oxide, and serves as a remarkable heterogeneous catalyst. The Keggin component plays multiple roles as reducing, encapsulating, and bridging agents, resulting in a cooperative effect among the three components that significantly enhances the catalytic activity. The catalytic performance of Zr/SiW12/GO was thoroughly investigated in the oxidation of sulfides to sulfoxides under mild conditions, employing H2O2 as the oxidant. Remarkably, this composite exhibited exceptional stability and could be effortlessly recovered and reused up to four times without any noticeable loss in its catalytic activity.
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Affiliation(s)
- Zahra Yekke-Ghasemi
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, Tehran, Iran
| | - Majid M Heravi
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, Tehran, Iran.
| | - Masoume Malmir
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, Tehran, Iran
| | - Masoud Mirzaei
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, 9177948974, Iran.
- Khorasan Science and Technology Park (KSTP), 12Th Km of Mashhad-Quchan Road, MashhadKhorasan Razavi, 9185173911, Iran.
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4
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Suib SL, Přech J, Szaniawska E, Čejka J. Recent Advances in Tetra- (Ti, Sn, Zr, Hf) and Pentavalent (Nb, V, Ta) Metal-Substituted Molecular Sieve Catalysis. Chem Rev 2023; 123:877-917. [PMID: 36547404 DOI: 10.1021/acs.chemrev.2c00509] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Metal substitution of molecular sieve systems is a major driving force in developing novel catalytic processes to meet current demands of green chemistry concepts and to achieve sustainability in the chemical industry and in other aspects of our everyday life. The advantages of metal-substituted molecular sieves include high surface areas, molecular sieving effects, confinement effects, and active site and morphology variability and stability. The present review aims to comprehensively and critically assess recent advances in the area of tetra- (Ti, Sn, Zr, Hf) and pentavalent (V, Nb, Ta) metal-substituted molecular sieves, which are mainly characterized for their Lewis acidic active sites. Metal oxide molecular sieve materials with properties similar to those of zeolites and siliceous molecular sieve systems are also discussed, in addition to relevant studies on metal-organic frameworks (MOFs) and some composite MOF systems. In particular, this review focuses on (i) synthesis aspects determining active site accessibility and local environment; (ii) advances in active site characterization and, importantly, quantification; (iii) selective redox and isomerization reaction applications; and (iv) photoelectrocatalytic applications.
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Affiliation(s)
- Steven L Suib
- Departments of Chemistry and Chemical and Biomolecular Engineering, and Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269-3060, United States
| | - Jan Přech
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 128 43 Prague 2, Czech Republic
| | - Ewelina Szaniawska
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 128 43 Prague 2, Czech Republic
| | - Jiří Čejka
- Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University in Prague, Hlavova 8, 128 43 Prague 2, Czech Republic
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5
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Talukdar H, Saikia G, Das A, Sultana SY, Islam NS. Organic-Solvent-Free Oxidation of Styrene, Phenol and Sulfides with H2O2 over Eco-Friendly Niobium and Tantalum Based Heterogeneous Catalysts. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.01.029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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6
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Talukdar H, Sultana SY, Kalita A, Islam NS. Selective and Mild Oxidation of 5‐Hydroxymethylfurfural to 5‐Hydroxymethyl‐2‐furancarboxylic Acid over Organic Polymer‐Supported Peroxidoniobium(V) Catalysts. ChemistrySelect 2022. [DOI: 10.1002/slct.202202374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Hiya Talukdar
- Department of Chemical Sciences Tezpur university Tezpur 784028 Assam India
| | | | - Arnab Kalita
- Department of Chemical Sciences Tezpur university Tezpur 784028 Assam India
| | - Nashreen S. Islam
- Department of Chemical Sciences Tezpur university Tezpur 784028 Assam India
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7
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Xing X, Wang H, Shi J, Li P, Ren J, Wang L, Zhang J, Liu Z, Lv B. WOx/C Heterogeneous Catalyst with Oxygen Vacancies and Deficient Brönsted Acid for Epoxidation of 1-Hexene. Catal Letters 2022. [DOI: 10.1007/s10562-022-04054-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Zeynep Ayla E, Patel D, Harris A, Flaherty DW. Identity of the Metal Oxide Support Controls Outer Sphere Interactions that Change Rates and Barriers for Alkene Epoxidations at Isolated Ti Atoms. J Catal 2022. [DOI: 10.1016/j.jcat.2022.05.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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9
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Recent Advances in Greener and Energy Efficient Alkene Epoxidation Processes. ENERGIES 2022. [DOI: 10.3390/en15082858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The chemical industry is considered to be one of the largest consumers of energy in the manufacturing sector. As the cost of energy is rising rapidly, coupled with the increasingly stringent standards for the release of harmful chemicals and gases into the environment, more attention is now focused on developing energy efficient chemical processes that could significantly reduce both operational costs and greenhouse gas emissions. Alkene epoxidation is an important chemical process as the resultant epoxides are highly reactive compounds that are used as platform chemicals for the production of commercially important products for flavours, fragrances, paints and pharmaceuticals. A number of epoxidation methods have been developed over the past decade with the ultimate aim of minimising waste generation and energy consumption. In this review paper, some of the recent advances in epoxides synthesis using energy efficient processes are discussed. The epoxidation methods may provide sustainability in terms of environmental impact and energy consumption.
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10
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Yu SSF, Lu YJ, Janmanchi D, Thiyagarajan N, Lin ZH, Wanna WH, Hsu IJ, Tzou DLM, Abay TA. Silver cyanide powder‐catalyzed selective epoxidation of cyclohexene and styrene with its surface activation by H₂O₂(aq) and assisted by CH₃CN as a non‐innocent solvent. ChemCatChem 2022. [DOI: 10.1002/cctc.202200030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Steve S.-F. Yu
- Academia Sinica Institute of Chemistry Academia Road 115 Taipei TAIWAN
| | - Yu-Jhang Lu
- Institute of Chemistry Academia Sinica Institute of Chemistry TAIWAN
| | - Damodar Janmanchi
- Institute of Chemistry Academia Sinica Institute of Chemistry TAIWAN
| | | | - Zhi-Han Lin
- Institute of Chemistry Academia Sinica Institute of Chemistry TAIWAN
| | | | - I-Jui Hsu
- National Taipei University of Technology Department of Molecular Science and Engineering TAIWAN
| | - Der-Lii M. Tzou
- Institute of Chemistry Academia Sinica Institute of Chemistry TAIWAN
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11
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Abstract
The epoxidation of propene without forming a substantial amount of byproducts is one of the holy grails of catalysis. Supported Cu, Ag and Au catalysts are studied for this reaction and the activity of the supported metals is generally well understood. On the contrary, limited information is available on the influence of the support on the epoxide selectivity. The reaction of propene with equal amounts of hydrogen and oxygen was tested over gold nanoparticles deposited onto CeO2, TiO2, WO3, γ-Al2O3, SiO2, TiO2-SiO2 and titanosilicate-1. Several metal oxide supports caused further conversion of the synthesized propene oxide. Strongly acidic supports, such as WO3 and titanosilicate-1, catalyzed the isomerization of propene oxide towards propanal and acetone. Key factors for achieving high PO selectivity are having inert or neutralized surface sites, a low specific surface and/or a low density of surface -OH groups. This work provides insights and practical guidelines to which metal oxide support properties lead to which products in the reaction of propene in the presence of oxygen and hydrogen over supported gold catalysts.
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12
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Zaera F. Designing Sites in Heterogeneous Catalysis: Are We Reaching Selectivities Competitive With Those of Homogeneous Catalysts? Chem Rev 2022; 122:8594-8757. [PMID: 35240777 DOI: 10.1021/acs.chemrev.1c00905] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A critical review of different prominent nanotechnologies adapted to catalysis is provided, with focus on how they contribute to the improvement of selectivity in heterogeneous catalysis. Ways to modify catalytic sites range from the use of the reversible or irreversible adsorption of molecular modifiers to the immobilization or tethering of homogeneous catalysts and the development of well-defined catalytic sites on solid surfaces. The latter covers methods for the dispersion of single-atom sites within solid supports as well as the use of complex nanostructures, and it includes the post-modification of materials via processes such as silylation and atomic layer deposition. All these methodologies exhibit both advantages and limitations, but all offer new avenues for the design of catalysts for specific applications. Because of the high cost of most nanotechnologies and the fact that the resulting materials may exhibit limited thermal or chemical stability, they may be best aimed at improving the selective synthesis of high value-added chemicals, to be incorporated in organic synthesis schemes, but other applications are being explored as well to address problems in energy production, for instance, and to design greener chemical processes. The details of each of these approaches are discussed, and representative examples are provided. We conclude with some general remarks on the future of this field.
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Affiliation(s)
- Francisco Zaera
- Department of Chemistry and UCR Center for Catalysis, University of California, Riverside, California 92521, United States
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13
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Chen Y, Ahn S, Mian MR, Wang X, Ma Q, Son FA, Yang L, Ma K, Zhang X, Notestein JM, Farha OK. Modulating Chemical Environments of Metal-Organic Framework-Supported Molybdenum(VI) Catalysts for Insights into the Structure-Activity Relationship in Cyclohexene Epoxidation. J Am Chem Soc 2022; 144:3554-3563. [PMID: 35179900 DOI: 10.1021/jacs.1c12421] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Solid supports are crucial in heterogeneous catalysis due to their profound effects on catalytic activity and selectivity. However, elucidating the specific effects arising from such supports remains challenging. We selected a series of metal-organic frameworks (MOFs) with 8-connected Zr6 nodes as supports to deposit molybdenum(VI) onto to study the effects of pore environment and topology on the resulting Mo-supported catalysts. As characterized by X-ray absorption spectroscopy (XAS) and single-crystal X-ray diffraction (SCXRD), we modulated the chemical environments of the deposited Mo species. For Mo-NU-1000, the Mo species monodentately bound to the Zr6 nodes were anchored in the microporous c-pore, but for Mo-NU-1008 they were bound in the mesopore of Mo-NU-1008. Both monodentate and bidentate modes were found in the mesopore of Mo-NU-1200. Cyclohexene epoxidation with H2O2 was probed to evaluate the support effect on catalytic activity and to unveil the resulting structure-activity relationships. SCXRD and XAS studies demonstrated the atomically precise structural differences of the Mo binding motifs over the course of cyclohexene epoxidation. No apparent structural change was observed for Mo-NU-1000, whereas the monodentate mode of Mo species in Mo-NU-1008 and the monodentate and bidentate Mo species in Mo-NU-1200 evolved to a new bidentate mode bound between two adjacent oxygen atoms from the Zr6 node. This work demonstrates the great advantage of using MOF supports for constructing heterogeneous catalysts with modulated chemical environments of an active species and elucidating structure-activity relationships in the resulting reactions.
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Affiliation(s)
- Yongwei Chen
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China.,Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Sol Ahn
- Center for Catalysis and Surface Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Mohammad Rasel Mian
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Xingjie Wang
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Qing Ma
- DND-CAT, Northwestern Synchrotron Research Center at the Advanced Photon Source, Argonne, Illinois 60439, United States
| | - Florencia A Son
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Lifeng Yang
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Kaikai Ma
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Xuan Zhang
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Justin M Notestein
- Center for Catalysis and Surface Science, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Omar K Farha
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States.,Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
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14
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Aerobic oxidative cleavage and esterification of C C bonds catalyzed by iron-based nanocatalyst. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2022.112152] [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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15
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Zhang Z, Berdugo-Díaz CE, Bregante DT, Zhang H, Flaherty DW. Aldol Condensation and Esterification over Ti-Substituted *BEA Zeolite: Mechanisms and Effects of Pore Hydrophobicity. ACS Catal 2022. [DOI: 10.1021/acscatal.1c04518] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhongyao Zhang
- DOE Center for Advanced Bioenergy and Bioproducts Innovation, Urbana, Illinois 61801, United States
- Department of Chemical and Biomolecular Engineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Claudia E. Berdugo-Díaz
- Department of Chemical and Biomolecular Engineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Daniel T. Bregante
- Department of Chemical and Biomolecular Engineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Hongbo Zhang
- Department of Chemical and Biomolecular Engineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
| | - David W. Flaherty
- DOE Center for Advanced Bioenergy and Bioproducts Innovation, Urbana, Illinois 61801, United States
- Department of Chemical and Biomolecular Engineering, University of Illinois Urbana-Champaign, Urbana, Illinois 61801, United States
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16
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Smeets V, Gaigneaux EM, Debecker DP. Titanosilicate Epoxidation Catalysts: A Review of Challenges and Opportunities. ChemCatChem 2022. [DOI: 10.1002/cctc.202101132] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Valentin Smeets
- Institute of Condensed Matter and Nanosciences (IMCN) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1, Box L4.01.09 1348 Louvain-la-Neuve Belgium
| | - Eric M. Gaigneaux
- Institute of Condensed Matter and Nanosciences (IMCN) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1, Box L4.01.09 1348 Louvain-la-Neuve Belgium
| | - Damien P. Debecker
- Institute of Condensed Matter and Nanosciences (IMCN) Université catholique de Louvain (UCLouvain) Place Louis Pasteur 1, Box L4.01.09 1348 Louvain-la-Neuve Belgium
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17
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Sultana SY, Talukdar H, Borah BJ, Sharma M, Islam NS. Synthesis, structure and catalytic activity of new oxovanadium(V) complexes with deferiprone and N,N-donor ligands. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.120813] [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]
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18
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19
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Williams BP, Lo WS, Morabito JV, Young AP, Tsung F, Kuo CH, Palomba JM, Rayder TM, Chou LY, Sneed BT, Liu XY, Lamontagne LK, Petroff CA, Brodsky CN, Yang J, Andoni I, Li Y, Zhang F, Li Z, Chen SY, Gallacher C, Li B, Tsung SY, Pu MH, Tsung CK. Tailoring Heterogeneous Catalysts at the Atomic Level: In Memoriam, Prof. Chia-Kuang (Frank) Tsung. ACS APPLIED MATERIALS & INTERFACES 2021; 13:51809-51828. [PMID: 34310110 DOI: 10.1021/acsami.1c08916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Professor Chia-Kuang (Frank) Tsung made his scientific impact primarily through the atomic-level design of nanoscale materials for application in heterogeneous catalysis. He approached this challenge from two directions: above and below the material surface. Below the surface, Prof. Tsung synthesized finely controlled nanoparticles, primarily of noble metals and metal oxides, tailoring their composition and surface structure for efficient catalysis. Above the surface, he was among the first to leverage the tunability and stability of metal-organic frameworks (MOFs) to improve heterogeneous, molecular, and biocatalysts. This article, written by his former students, seeks first to commemorate Prof. Tsung's scientific accomplishments in three parts: (1) rationally designing nanocrystal surfaces to promote catalytic activity; (2) encapsulating nanocrystals in MOFs to improve catalyst selectivity; and (3) tuning the host-guest interaction between MOFs and guest molecules to inhibit catalyst degradation. The subsequent discussion focuses on building on the foundation laid by Prof. Tsung and on his considerable influence on his former group members and collaborators, both inside and outside of the lab.
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Affiliation(s)
- Benjamin P Williams
- Department of Chemistry, Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, Massachusetts 02467, United States
| | - Wei-Shang Lo
- Department of Chemistry, Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, Massachusetts 02467, United States
| | - Joseph V Morabito
- Department of Chemistry, Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, Massachusetts 02467, United States
| | - Allison P Young
- Department of Chemistry, Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, Massachusetts 02467, United States
| | - Frances Tsung
- Department of Chemistry, Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, Massachusetts 02467, United States
| | - Chun-Hong Kuo
- Institute of Chemistry, Academia Sinica, No. 128, Section 2, Academia Rd, Nangang District, Taipei City, Taiwan 115
| | - Joseph M Palomba
- U.S. Army DEVCOM Soldier Center, 10 General Greene Avenue, Natick, Massachusetts 01760, United States
| | - Thomas M Rayder
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Lien-Yang Chou
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, P. R. China
| | - Brian T Sneed
- CMC Materials, 870 North Commons Drive, Aurora, Illinois 60504, United States
| | - Xiao-Yuan Liu
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic, 7098 Liuxian Boulevard, Nanshan District, Shenzhen 518055, P. R. China
| | - Leo K Lamontagne
- SecureSeniorConnections, 7114 East Stetson Drive, Scottsdale, Arizona 85251, United States
| | - Christopher A Petroff
- Department of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Casey N Brodsky
- University of Michigan Medical School, 7300 Medical Sciences Building I-A Wing, 1301 Catherine Street, Ann Arbor, Michigan 48109, United States
| | - Jane Yang
- Department of Chemistry and Biochemistry, University of California Los Angeles, 607 Charles E. Young Drive East, Los Angeles, California 90095, United States
| | - Ilektra Andoni
- Department of Chemistry, University of California Irvine, 1102 Natural Sciences 2, Irvine, California 92697-2025, United States
| | - Yang Li
- Department of Chemistry, Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, Massachusetts 02467, United States
| | - Furui Zhang
- Department of Chemistry and the Institute for Catalysis in Energy Processes, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, United States
| | - Zhehui Li
- Department of Chemistry, Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, Massachusetts 02467, United States
| | - Sheng-Yu Chen
- Institute of Chemistry, Academia Sinica, No. 128, Section 2, Academia Rd, Nangang District, Taipei City, Taiwan 115
| | - Connor Gallacher
- Department of Chemistry, Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, Massachusetts 02467, United States
| | - Banruo Li
- Department of Chemistry, Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, Massachusetts 02467, United States
| | - Sheng-Yuan Tsung
- Department of Chemistry, Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, Massachusetts 02467, United States
| | - Ming-Hwa Pu
- Department of Chemistry, Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, Massachusetts 02467, United States
| | - Chia-Kuang Tsung
- Department of Chemistry, Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, Massachusetts 02467, United States
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20
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Bresciani G, Gemmiti M, Ciancaleoni G, Pampaloni G, Marchetti F, Crucianelli M. Niobium(V) oxido tris-carbamate as easily available and robust catalytic precursor for the selective sulfide to sulfone oxidation. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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21
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Talukdar H, Gogoi SR, Saikia G, Sultana SY, Ahmed K, Islam NS. A sustainable approach towards solventless organic oxidations catalyzed by polymer immobilized Nb(V)-peroxido compounds with H2O2 as oxidant. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.111988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Li X, Wang Q, Lyu J, Li X. Recent Investigation on Epoxidation of Styrene with Hydrogen Peroxide by Heterogeneous Catalysis. ChemistrySelect 2021. [DOI: 10.1002/slct.202101353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Xing Li
- School of Chemical Engineering Zhejiang University of Technology Hangzhou 310032 People's Republic of China
| | - Qingtao Wang
- School of Chemical Engineering Zhejiang University of Technology Hangzhou 310032 People's Republic of China
| | - Jinghui Lyu
- School of Chemical Engineering Zhejiang University of Technology Hangzhou 310032 People's Republic of China
| | - Xiaonian Li
- School of Chemical Engineering Zhejiang University of Technology Hangzhou 310032 People's Republic of China
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23
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Yang Z, Zhang S, Zhao H, Li A, Luo L, Guo L. Subnano-FeO x Clusters Anchored in an Ultrathin Amorphous Al 2O 3 Nanosheet for Styrene Epoxidation. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01366] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhao Yang
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Beihang University, Beijing 100191, China
| | - Shuo Zhang
- Shanghai Synchrotron Radiation Facility, Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai 201204, China
| | - Hewei Zhao
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Beihang University, Beijing 100191, China
| | - Anran Li
- Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, School of Medicine and Engineering, Beihang University, Beijing 100191, China
| | - Long Luo
- Department of Chemistry, Wayne State University, 5101 Cass Avenue, Detroit, Michigan 48202, United States
| | - Lin Guo
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology, Beihang University, Beijing 100191, China
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24
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Zhang Y, Yue X, Liang C, Zhao J, Yu W, Zhang P. Photo-induced oxidative cleavage of C-C double bonds of olefins in water. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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State-of-the-art advances in the structural diversities and catalytic applications of polyoxoniobate-based materials. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213966] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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26
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Maksimchuk NV, Evtushok VY, Zalomaeva OV, Maksimov GM, Ivanchikova ID, Chesalov YA, Eltsov IV, Abramov PA, Glazneva TS, Yanshole VV, Kholdeeva OA, Errington RJ, Solé-Daura A, Poblet JM, Carbó JJ. Activation of H 2O 2 over Zr(IV). Insights from Model Studies on Zr-Monosubstituted Lindqvist Tungstates. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02485] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
| | - Vasilii Yu. Evtushok
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia
- Novosibirsk State University, Pirogova Street 2, Novosibirsk 630090, Russia
| | - Olga V. Zalomaeva
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia
| | | | | | - Yuriy A. Chesalov
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia
| | - Ilia V. Eltsov
- Novosibirsk State University, Pirogova Street 2, Novosibirsk 630090, Russia
| | - Pavel A. Abramov
- Nikolaev Institute of Inorganic Chemistry, Pr. Lavrentieva 3, Novosibirsk 630090, Russia
| | - Tatyana S. Glazneva
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia
| | - Vadim V. Yanshole
- Novosibirsk State University, Pirogova Street 2, Novosibirsk 630090, Russia
- International Tomography Center SB RAS, Institutskaya Street 3a, Novosibirsk 630090, Russia
| | - Oxana A. Kholdeeva
- Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia
| | - R. John Errington
- Chemistry, School of Natural and Environmental Sciences, Newcastle University, Bedson Building, Newcastle upon Tyne NE1 7RU, U.K
| | - Albert Solé-Daura
- Department de Química Física I Inorgànica, Universitat Rovira i Virgili, Tarragona 43005, Spain
| | - Josep M. Poblet
- Department de Química Física I Inorgànica, Universitat Rovira i Virgili, Tarragona 43005, Spain
| | - Jorge J. Carbó
- Department de Química Física I Inorgànica, Universitat Rovira i Virgili, Tarragona 43005, Spain
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27
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Zhou Q, Xu B, Tang X, Dai S, Ding B, Li D, Zheng A, Zhang T, Yao Y, Gong X, Hou Z. Role of Organic Fluoride Salts in Stabilizing Niobium Oxo-Clusters Catalyzing Epoxidation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:8190-8203. [PMID: 34184530 DOI: 10.1021/acs.langmuir.1c00893] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
We present here that easily available organic salts can stabilize/modify niobium (Nb) oxo-clusters. The as-synthesized Nb oxo-clusters have been characterized by various methods. These Nb oxo-clusters were catalytically active for the epoxidation of allylic alcohols and olefins with H2O2 as an oxidant. Notably, Nb-OC@TBAF-0.5 appeared as highly dispersed nanosized particles and showed the highest catalytic activity, which can be attributed to the following reasons on the basis of characterization. First, the strong coordination of fluorine ions with Nb sites and the steric protection with bulky organic cations led to high stabilization and dispersion of the oxo-clusters in the course of the reaction. Second, a hydrogen-bond interaction between the coordinated fluorine atom and the -OH group of allylic alcohol favored the epoxidation reaction. Third, the electron density of Nb sites decreased due to the strong electron-withdrawing ability of F- adjacent to Nb sites, thus promoting the electrophilic oxygen transfer to the C═C bond.
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Affiliation(s)
- Qingqing Zhou
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, China
| | - Beibei Xu
- Physics Department and Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, China
| | - Xuan Tang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, China
| | - Sheng Dai
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Bingjie Ding
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, China
| | - Difan Li
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, China
| | - Anna Zheng
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, China
| | - Tong Zhang
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, China
| | - Yefeng Yao
- Physics Department and Shanghai Key Laboratory of Magnetic Resonance, East China Normal University, Shanghai 200062, China
| | - Xueqing Gong
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, China
| | - Zhenshan Hou
- Key Laboratory for Advanced Materials, Research Institute of Industrial Catalysis, East China University of Science and Technology, Shanghai 200237, China
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200062, China
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28
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Noh G, Lam E, Bregante DT, Meyet J, Šot P, Flaherty DW, Copéret C. Lewis Acid Strength of Interfacial Metal Sites Drives CH
3
OH Selectivity and Formation Rates on Cu‐Based CO
2
Hydrogenation Catalysts. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Gina Noh
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir Prelog Weg 1–5 8093 Zürich Switzerland
| | - Erwin Lam
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir Prelog Weg 1–5 8093 Zürich Switzerland
| | - Daniel T. Bregante
- Department of Chemical and Biomolecular Engineering University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Jordan Meyet
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir Prelog Weg 1–5 8093 Zürich Switzerland
| | - Petr Šot
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir Prelog Weg 1–5 8093 Zürich Switzerland
| | - David W. Flaherty
- Department of Chemical and Biomolecular Engineering University of Illinois at Urbana-Champaign Urbana IL 61801 USA
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences ETH Zürich Vladimir Prelog Weg 1–5 8093 Zürich Switzerland
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29
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Noh G, Lam E, Bregante DT, Meyet J, Šot P, Flaherty DW, Copéret C. Lewis Acid Strength of Interfacial Metal Sites Drives CH 3 OH Selectivity and Formation Rates on Cu-Based CO 2 Hydrogenation Catalysts. Angew Chem Int Ed Engl 2021; 60:9650-9659. [PMID: 33559910 DOI: 10.1002/anie.202100672] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 02/05/2021] [Indexed: 01/03/2023]
Abstract
CH3 OH formation rates in CO2 hydrogenation on Cu-based catalysts sensitively depend on the nature of the support and the presence of promoters. In this context, Cu nanoparticles supported on tailored supports (highly dispersed M on SiO2 ; M=Ti, Zr, Hf, Nb, Ta) were prepared via surface organometallic chemistry, and their catalytic performance was systematically investigated for CO2 hydrogenation to CH3 OH. The presence of Lewis acid sites enhances CH3 OH formation rate, likely originating from stabilization of formate and methoxy surface intermediates at the periphery of Cu nanoparticles, as evidenced by metrics of Lewis acid strength and detection of surface intermediates. The stabilization of surface intermediates depends on the strength of Lewis acid M sites, described by pyridine adsorption enthalpies and 13 C chemical shifts of -OCH3 coordinated to M; these chemical shifts are demonstrated here to be a molecular descriptor for Lewis acid strength and reactivity in CO2 hydrogenation.
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Affiliation(s)
- Gina Noh
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, 8093, Zürich, Switzerland
| | - Erwin Lam
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, 8093, Zürich, Switzerland
| | - Daniel T Bregante
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Jordan Meyet
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, 8093, Zürich, Switzerland
| | - Petr Šot
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, 8093, Zürich, Switzerland
| | - David W Flaherty
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1-5, 8093, Zürich, Switzerland
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30
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Yu T, Guo M, Wen S, Zhao R, Wang J, Sun Y, Liu Q, Zhou H. Poly(ethylene glycol) dimethyl ether mediated oxidative scission of aromatic olefins to carbonyl compounds by molecular oxygen. RSC Adv 2021; 11:13848-13852. [PMID: 35423908 PMCID: PMC8697527 DOI: 10.1039/d1ra02007b] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 04/05/2021] [Indexed: 12/16/2022] Open
Abstract
A simple, and practical oxidative scission of aromatic olefins to carbonyl compounds using O2 as the sole oxidant with poly(ethylene glycol) dimethyl ether as a benign solvent has been developed. A wide range of monosubstituted, gem-disubstituted, 1,2-disubstituted, trisubstituted and tetrasubstituted aromatic olefins was successfully converted into the corresponding aldehydes and ketones in excellent yields even with gram–scale reaction. Some control experiments were also conducted to support a possible reaction pathway. A simple and practical O2 oxidized scission of monosubstituted, gem- and 1,2-disubstituted, trisubstituted and tetrasubstituted aromatic olefins to aldehydes and ketones in PEGDME has been developed.![]()
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Affiliation(s)
- Tao Yu
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University Yichang 443002 China
| | - Mingqing Guo
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University Yichang 443002 China
| | - Simiaomiao Wen
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University Yichang 443002 China
| | - Rongrong Zhao
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University Yichang 443002 China
| | - Jinlong Wang
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University Yichang 443002 China
| | - Yanli Sun
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University Yichang 443002 China
| | - Qixing Liu
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University Yichang 443002 China
| | - Haifeng Zhou
- Research Center of Green Pharmaceutical Technology and Process, Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University Yichang 443002 China
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31
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Duan M, Wang X, Peng W, Liu D, Cheng Q, Yang Q. Co(II) Schiff Base Complex Supported on Nano‐Silica for the Aerobic Oxidation of Cyclohexene: Reaction Pathways and Overoxidation on the Experimental and Calculated Mechanism. ChemistrySelect 2021. [DOI: 10.1002/slct.202004676] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Mingxing Duan
- College of Chemical Engineering Hebei University of Technology Key Laboratory of Green Chemical Technology and High Efficient Energy Saving of Hebei Province and Tianjin Key Laboratory of Chemical Process Safety Tianjin 300131 China
| | - Xinguo Wang
- College of Chemical Engineering Hebei University of Technology Key Laboratory of Green Chemical Technology and High Efficient Energy Saving of Hebei Province and Tianjin Key Laboratory of Chemical Process Safety Tianjin 300131 China
| | - Wenjing Peng
- College of Chemical Engineering Hebei University of Technology Key Laboratory of Green Chemical Technology and High Efficient Energy Saving of Hebei Province and Tianjin Key Laboratory of Chemical Process Safety Tianjin 300131 China
| | - Dongjie Liu
- College of Chemical Engineering Hebei University of Technology Key Laboratory of Green Chemical Technology and High Efficient Energy Saving of Hebei Province and Tianjin Key Laboratory of Chemical Process Safety Tianjin 300131 China
| | - Qingyan Cheng
- College of Chemical Engineering Hebei University of Technology Key Laboratory of Green Chemical Technology and High Efficient Energy Saving of Hebei Province and Tianjin Key Laboratory of Chemical Process Safety Tianjin 300131 China
| | - Qiusheng Yang
- College of Chemical Engineering Hebei University of Technology Key Laboratory of Green Chemical Technology and High Efficient Energy Saving of Hebei Province and Tianjin Key Laboratory of Chemical Process Safety Tianjin 300131 China
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32
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Rossi-Fernández L, Dorn V, Radivoy G. A new and efficient methodology for olefin epoxidation catalyzed by supported cobalt nanoparticles. Beilstein J Org Chem 2021; 17:519-526. [PMID: 33727975 PMCID: PMC7934735 DOI: 10.3762/bjoc.17.46] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 02/10/2021] [Indexed: 12/22/2022] Open
Abstract
A new heterogeneous catalytic system consisting of cobalt nanoparticles (CoNPs) supported on MgO and tert-butyl hydroperoxide (TBHP) as oxidant is presented. This CoNPs@MgO/t-BuOOH catalytic combination allowed the epoxidation of a variety of olefins with good to excellent yield and high selectivity. The catalyst preparation is simple and straightforward from commercially available starting materials and it could be recovered and reused maintaining its unaltered high activity.
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Affiliation(s)
- Lucía Rossi-Fernández
- INQUISUR-CONICET, Departamento de Química, Universidad Nacional del Sur, Avenida Alem 1253, Bahía Blanca, B8000CPB, Argentina
| | - Viviana Dorn
- INQUISUR-CONICET, Departamento de Química, Universidad Nacional del Sur, Avenida Alem 1253, Bahía Blanca, B8000CPB, Argentina
| | - Gabriel Radivoy
- INQUISUR-CONICET, Departamento de Química, Universidad Nacional del Sur, Avenida Alem 1253, Bahía Blanca, B8000CPB, Argentina
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33
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Otake KI, Ahn S, Knapp J, Hupp JT, Notestein JM, Farha OK. Vapor-Phase Cyclohexene Epoxidation by Single-Ion Fe(III) Sites in Metal-Organic Frameworks. Inorg Chem 2021; 60:2457-2463. [PMID: 33497212 DOI: 10.1021/acs.inorgchem.0c03364] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Heterogeneous catalysts supported on metal-organic frameworks (MOFs), which possess uniform porosity and crystallinity, have attracted significant interest for recent years due to the ease of active-site characterization via X-ray diffraction and the subsequent relation of the active site structure to the catalytic activity. We report the syntheses, structures, and oxidation catalytic activities of single-ion iron catalysts incorporated into the zirconium MOF NU-1000. Single-ion iron catalysts with different counteranions were anchored onto the Zr node through postsynthetic solvothermal deposition. Crystallographic characterization of the resulting MOFs (NU-1000-Fe-Cl and NU-1000-Fe-NO3) revealed that, while both frameworks have similar Fe coordination, the distance between Fe and the Zr6 node differs significantly between the two. The product rate profiles of the two catalysts for vapor-phase cyclohexene epoxidation demonstrate different initial rates and product formations, likely originating from the different Fe-O distances.
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34
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Dong J, Sun X, Zhen N, Li Z, Liu D, Zou B, Dai Q, Chi Y, Chen SL, Poblet JM, Hu C. Oxidative detoxification of nerve agent VX simulant by polyoxoniobate: Experimental and theoretical insights. J Catal 2021. [DOI: 10.1016/j.jcat.2020.12.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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35
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Olefin epoxidation with ionic liquid catalysts formed by supramolecular interactions. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2020.111342] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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36
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Ayla EZ, Potts DS, Bregante DT, Flaherty DW. Alkene Epoxidations with H2O2 over Groups 4–6 Metal-Substituted BEA Zeolites: Reactive Intermediates, Reaction Pathways, and Linear Free-Energy Relationships. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03394] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- E. Zeynep Ayla
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - David S. Potts
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Daniel T. Bregante
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - David W. Flaherty
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
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37
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Ardagh MA, Bregante DT, Flaherty DW, Notestein JM. Controlled Deposition of Silica on Titania-Silica to Alter the Active Site Surroundings on Epoxidation Catalysts. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02937] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- M. Alexander Ardagh
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Daniel T. Bregante
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - David W. Flaherty
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Justin M. Notestein
- Department of Chemical and Biological Engineering, Northwestern University, Evanston, Illinois 60208, United States
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38
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Sarma BB, Plessow PN, Agostini G, Concepción P, Pfänder N, Kang L, Wang FR, Studt F, Prieto G. Metal-Specific Reactivity in Single-Atom Catalysts: CO Oxidation on 4d and 5d Transition Metals Atomically Dispersed on MgO. J Am Chem Soc 2020; 142:14890-14902. [DOI: 10.1021/jacs.0c03627] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Bidyut B. Sarma
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Philipp N. Plessow
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Giovanni Agostini
- ALBA Synchrotron Light Source, Carrer de la Llum 2-26, 08290, Cerdanyola del Vallès, Barcelona, Spain
| | - Patricia Concepción
- ITQ Instituto de Tecnologı́a Quı́mica, Universitat Politècnica de València-Consejo Superior de Investigaciones Cientı́ficas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, Spain
| | - Norbert Pfänder
- Max-Planck-Institut für chemische Energiekonversion, Stiftstraße, 45470 Mülheim an der Ruhr, Germany
| | - Liqun Kang
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, United Kingdom
| | - Feng R. Wang
- Department of Chemical Engineering, University College London, Torrington Place, London, WC1E 7JE, United Kingdom
| | - Felix Studt
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany
| | - Gonzalo Prieto
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
- ITQ Instituto de Tecnologı́a Quı́mica, Universitat Politècnica de València-Consejo Superior de Investigaciones Cientı́ficas (UPV-CSIC), Avenida de los Naranjos s/n, 46022 Valencia, Spain
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39
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Bregante DT, Tan JZ, Schultz RL, Ayla EZ, Potts DS, Torres C, Flaherty DW. Catalytic Consequences of Oxidant, Alkene, and Pore Structures on Alkene Epoxidations within Titanium Silicates. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02183] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel T. Bregante
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Jun Zhi Tan
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Rebecca L. Schultz
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - E. Zeynep Ayla
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - David S. Potts
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Chris Torres
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
| | - David W. Flaherty
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, United States
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40
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Du L, Wang Z, Wu J. Iodobenzene-catalyzed oxidative cleavage of olefins to carbonyl compounds. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152204] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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41
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Harris JW, Bates JS, Bukowski BC, Greeley J, Gounder R. Opportunities in Catalysis over Metal-Zeotypes Enabled by Descriptions of Active Centers Beyond Their Binding Site. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02102] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- James W. Harris
- Department of Chemical and Biological Engineering, The University of Alabama, Box 870203, Tuscaloosa, Alabama 35487, United States
| | - Jason S. Bates
- Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Brandon C. Bukowski
- Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Jeffrey Greeley
- Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Rajamani Gounder
- Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
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42
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Zhu Z, Ma H, Xu H, Wang B, Wu P, Lü H. Oxidative desulfurization of model oil over Ta-Beta zeolite synthesized via structural reconstruction. JOURNAL OF HAZARDOUS MATERIALS 2020; 393:122458. [PMID: 32155526 DOI: 10.1016/j.jhazmat.2020.122458] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 03/01/2020] [Accepted: 03/02/2020] [Indexed: 06/10/2023]
Abstract
As to metallosilicate zeolites, ions with larger size such as Ta5+ in the gels greatly retarded their crystallization during the hydrothermal synthesis, affording long-winded synthesis periods, up-limited framework-substituted metal contents, or even frustrated outcome. An efficient hydrothermal synthesis strategy for metallosilicate, in this case of Ta framework-substituted *BEA zeolite, via structural reconstruction was proposed to stride the gap. The Ta content in our developed Ta-Beta-Re-50 zeolite achieved up to 5.48 % (Si/Ta = 52), breaking through the limitation of Ta contents for conventional method (Si/Ta > 100). Additionally, this Ta-Beta-Re zeolite possessed nanosized crystals (20-40 nm) and short crystallization time (8 h), significantly improving space-time yields of practical zeolite production. Through spectroscopic study, it was confirmed that the existence of zeolite structural units intensively facilitated the formation of nucleation and crystal growth. This innovative Ta-Beta zeolite demonstrated high catalytic performances for oxidation desulfurization, far outperforming traditional fluoride-mediated Ta-Beta-F, which was ascribed to its excellent diffusion properties and incredible high isolated Ta contents. Additionally, the catalytic performance of Ta-Beta-Re could be regenerated after simple calcination and the deactivation may be caused by pore blocking of organics. This work provides a new method for rationally design and construction of metallosilicate materials with high activity for catalytic oxidation applications, which can bridge the conceptual and technical gap between periodic trends and zeolite material synthesis.
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Affiliation(s)
- Zhiguo Zhu
- Green Chemistry Centre, College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai, 264005, Shandong, China
| | - Haikuo Ma
- Green Chemistry Centre, College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai, 264005, Shandong, China
| | - Hao Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Rd. 3663, Shanghai, 200062, China
| | - Bo Wang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong, 252059, China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Rd. 3663, Shanghai, 200062, China.
| | - Hongying Lü
- Green Chemistry Centre, College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai, 264005, Shandong, China.
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43
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Wei YS, Zhang M, Zou R, Xu Q. Metal-Organic Framework-Based Catalysts with Single Metal Sites. Chem Rev 2020; 120:12089-12174. [PMID: 32356657 DOI: 10.1021/acs.chemrev.9b00757] [Citation(s) in RCA: 425] [Impact Index Per Article: 106.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Metal-organic frameworks (MOFs) are a class of distinctive porous crystalline materials constructed by metal ions/clusters and organic linkers. Owing to their structural diversity, functional adjustability, and high surface area, different types of MOF-based single metal sites are well exploited, including coordinately unsaturated metal sites from metal nodes and metallolinkers, as well as active metal species immobilized to MOFs. Furthermore, controllable thermal transformation of MOFs can upgrade them to nanomaterials functionalized with active single-atom catalysts (SACs). These unique features of MOFs and their derivatives enable them to serve as a highly versatile platform for catalysis, which has actually been becoming a rapidly developing interdisciplinary research area. In this review, we overview the recent developments of catalysis at single metal sites in MOF-based materials with emphasis on their structures and applications for thermocatalysis, electrocatalysis, and photocatalysis. We also compare the results and summarize the major insights gained from the works in this review, providing the challenges and prospects in this emerging field.
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Affiliation(s)
- Yong-Sheng Wei
- AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Sakyo-ku, Kyoto 606-8501, Japan
| | - Mei Zhang
- AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Sakyo-ku, Kyoto 606-8501, Japan
| | - Ruqiang Zou
- Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials, Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871, PR China
| | - Qiang Xu
- AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL), National Institute of Advanced Industrial Science and Technology (AIST), Sakyo-ku, Kyoto 606-8501, Japan.,School of Chemistry and Chemical Engineering, and Institute for Innovative Materials and Energy, Yangzhou University, Yangzhou 225009, China
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44
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Ahn S, Nauert SL, Hicks KE, Ardagh MA, Schweitzer NM, Farha OK, Notestein JM. Demonstrating the Critical Role of Solvation in Supported Ti and Nb Epoxidation Catalysts via Vapor-Phase Kinetics. ACS Catal 2020. [DOI: 10.1021/acscatal.9b04906] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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45
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Bregante DT, Tan JZ, Sutrisno A, Flaherty DW. Heteroatom substituted zeolite FAU with ultralow Al contents for liquid-phase oxidation catalysis. Catal Sci Technol 2020. [DOI: 10.1039/c9cy01886g] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Titanium-substituted FAU stabilizes aromatic alkenes to greater extents than BEA and mesoporous silica.
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Affiliation(s)
- Daniel T. Bregante
- Department of Chemical and Biomolecular Engineering
- University of Illinois at Urbana-Champaign
- Urbana
- USA
| | - Jun Zhi Tan
- Department of Chemical and Biomolecular Engineering
- University of Illinois at Urbana-Champaign
- Urbana
- USA
| | - Andre Sutrisno
- NMR/EPR Laboratory
- School of Chemical Sciences
- University of Illinois at Urbana-Champaign
- Urbana
- USA
| | - David W. Flaherty
- Department of Chemical and Biomolecular Engineering
- University of Illinois at Urbana-Champaign
- Urbana
- USA
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46
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Ding W, Peng H, Zhong W, Mao L, Yin D. Site-specific catalytic activities to facilitate solvent-free aerobic oxidation of cyclohexylamine to cyclohexanone oxime over highly efficient Nb-modified SBA-15 catalysts. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00479k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The development of highly active and selective heterogeneous catalysts for efficient oxidation of cyclohexylamine to cyclohexanone oxime is a challenge associated with the highly sensitive nitrogen center of cyclohexylamine.
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Affiliation(s)
- Wei Ding
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
| | - Haoyu Peng
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
| | - Wenzhou Zhong
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
| | - Liqiu Mao
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
| | - Dulin Yin
- National & Local United Engineering Laboratory for New Petrochemical Materials & Fine Utilization of Resources
- Hunan Normal University
- Changsha 410081
- P. R. China
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47
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Yoon TU, Ahn S, Kim AR, Notestein JM, Farha OK, Bae YS. Cyclohexene epoxidation with H2O2 in the vapor and liquid phases over a vanadium-based metal–organic framework. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00833h] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A V-containing metal–organic framework exhibits significantly different catalytic mechanisms between liquid-phase and gas-phase cyclohexene oxidations.
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Affiliation(s)
- Tae-Ung Yoon
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 03722
- Korea
| | - Sol Ahn
- Department of Chemical and Biological Engineering
- Northwestern University
- Evanston
- USA
| | - Ah-Reum Kim
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 03722
- Korea
| | - Justin M. Notestein
- Department of Chemical and Biological Engineering
- Northwestern University
- Evanston
- USA
| | - Omar K. Farha
- Department of Chemical and Biological Engineering
- Northwestern University
- Evanston
- USA
- International Institute of Nanotechnology and Department of Chemistry
| | - Youn-Sang Bae
- Department of Chemical and Biomolecular Engineering
- Yonsei University
- Seoul 03722
- Korea
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48
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Bo Z, Thornburg NE, Peng L, Gutierrez Moreno JJ, Nolan M, Marks LD, Notestein JM. Direct Visualization of Independent Ta Centers Supported on Two-Dimensional TiO 2 Nanosheets. NANO LETTERS 2019; 19:8103-8108. [PMID: 31661285 DOI: 10.1021/acs.nanolett.9b03305] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Highly dispersed, supported oxides are ubiquitous solid catalysts but can be challenging to characterize with atomic precision. Here, it is shown that crystalline anatase TiO2 nanosheets (∼5 nm thick) are ideal supports for imaging highly dispersed active sites. Ta cations were deposited by several routes, and high-resolution high angle annular dark-field scanning transmission electron microscopy was used to determine the location of Ta with respect to the TiO2 lattice and quantify Ta-Ta distances. In the best case, it is shown that >80% of Ta atoms are isolated from one another, whereas other techniques are blind to this critical catalytic property or give only qualitative estimates. TiO2 nanosheets may prove to be a useful platform for other types of catalysis studies.
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Affiliation(s)
- Zhenyu Bo
- Department of Materials Science and Engineering , Northwestern University , Evanston , Illinois 60208 , United States
| | - Nicholas E Thornburg
- Department of Chemical and Biological Engineering , Northwestern University , Evanston , Illinois 60208 , United States
| | - Lingxuan Peng
- Department of Materials Science and Engineering , Northwestern University , Evanston , Illinois 60208 , United States
| | | | - Michael Nolan
- Tyndall National Institute , University College Cork , Lee Maltings, Dyke Parade , Cork T12R5CP , Ireland
| | - Laurence D Marks
- Department of Materials Science and Engineering , Northwestern University , Evanston , Illinois 60208 , United States
| | - Justin M Notestein
- Department of Chemical and Biological Engineering , Northwestern University , Evanston , Illinois 60208 , United States
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49
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Bregante DT, Flaherty DW. Impact of Specific Interactions Among Reactive Surface Intermediates and Confined Water on Epoxidation Catalysis and Adsorption in Lewis Acid Zeolites. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03323] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daniel T. Bregante
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
| | - David W. Flaherty
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana−Champaign, Urbana, Illinois 61801, United States
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50
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Yu W, Zhao Z. Catalyst-Free Selective Oxidation of Diverse Olefins to Carbonyls in High Yield Enabled by Light under Mild Conditions. Org Lett 2019; 21:7726-7730. [PMID: 31524410 DOI: 10.1021/acs.orglett.9b02569] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The selective oxidation of olefins, in particular, aromatic olefins to carbonyls, is of significance in organic synthesis. In general, stoichiometric toxic oxidants or a high-cost catalyst is required. Herein we report a novel and practical light-enabled protocol for the synthesis of carbonlys in high yield through a catalyst-free oxidation of olefins using H2O2 as a clean oxidant. A broad scope of carbonyls can be synthesized in high yield, and no catalyst or toxic oxidant is required.
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Affiliation(s)
- Weiwei Yu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering , Dalian University of Technology , Dalian 116024 , P. R. China
| | - Zhongkui Zhao
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering , Dalian University of Technology , Dalian 116024 , P. R. China
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