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Qin Q, Liu H, Guo Y, Wang B, Zhu J, Ma J. Insights into the mechanism of the solvolysis of propylene oxide over titanium silicalite-1: a theoretical study. Phys Chem Chem Phys 2023; 25:21358-21375. [PMID: 37530074 DOI: 10.1039/d3cp01696j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
In order to probe into the mechanism of solvolysis (alcoholysis/hydrolysis) of propylene oxide (PO), the formation of propylene glycol (PG), 1-methoxy-2-propanol (PPM) and 2-methoxy-1-propanol (SPM) over the TS-1 catalyst with tetrahedral Ti and Ti/defect sites was systematically discussed using an embedded quantum mechanical/molecular mechanics (QM/MM) approach. The results showed that the activity of PO solvolysis is closely related to the ring-opening ability of active substances, and the ring-opening ability is in the following order: Si-O(H)-Ti > Ti-OH > 5MR Ti-OOH > Ti-OCH3 (tetrahedral Ti site); 3MR Ti-OOH > Ti-OH > 5MR Ti-OOH > Ti-OCH3 (Ti/defect site). At the tetrahedral site, the concerted mechanism is the dominant pathway for PO ring opening to form PPM, while a competitive relationship exists between stepwise and concerted mechanisms to form PG and SPM. Si-O(H)-Ti exhibits excellent PO ring-opening activity because of its strong Brønsted acidity, but it is difficult to form. At the Ti/defect site, the stepwise mechanism via PO ring opening with 3MR Ti-OOH and then successive hydrolysis/alcoholysis to form product is the dominant pathway. The overall energy barrier of the optimal route is relatively lower as compared to the tetrahedral Ti site. This work opens up a new path for providing more information on the detailed mechanism in the solvolysis of PO over the TS-1 catalyst from a theoretical point of view.
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Affiliation(s)
- Qiaoyun Qin
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, No. 90, Weijin Road, Nankai District, Tianjin, 300072, China.
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China
| | - Hongxia Liu
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, China
| | - Yanke Guo
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, No. 90, Weijin Road, Nankai District, Tianjin, 300072, China.
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China
| | - Baohe Wang
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, No. 90, Weijin Road, Nankai District, Tianjin, 300072, China.
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China
| | - Jing Zhu
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, No. 90, Weijin Road, Nankai District, Tianjin, 300072, China.
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China
| | - Jing Ma
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, No. 90, Weijin Road, Nankai District, Tianjin, 300072, China.
- Key Laboratory for Green Chemical Technology of Ministry of Education, R&D Center for Petrochemical Technology, Tianjin University, Tianjin 300072, China
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2
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Xu H, Xu H, Cheng D. Resolving the Reaction Mechanism for Oxidative Hydration of Ethylene toward Ethylene Glycol by Titanosilicate Catalysts. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hui Xu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, China
| | - Haoxiang Xu
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, China
| | - Daojian Cheng
- State Key Laboratory of Organic-Inorganic Composites, Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, China
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Xu J, Zhang Z, Wang G, Duan X, Qian G, Zhou X. Zeolite crystal size effects of Au/uncalcined TS-1 bifunctional catalysts on direct propylene epoxidation with H2 and O2. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115907] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Guo S, Zhang Y, Ye Y, Song J, Li M. MWW-Type Titanosilicate Synthesized by Simply Treating ERB-P Zeolite with Acidic H 2TiF 6 and Its Catalytic Performance in a Liquid Epoxidation of 1-Hexene with H 2O 2. ACS OMEGA 2020; 5:9912-9919. [PMID: 32391478 PMCID: PMC7203989 DOI: 10.1021/acsomega.0c00184] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 04/13/2020] [Indexed: 06/11/2023]
Abstract
Synthesis of a Ti-incorporated zeolite using a simple and economical method has recently become a focus of attention. The direct hydrothermal synthesis of Ti-MWW is most commonly applied; however, it is challenging to perform and exhibits low titanium utilization. An innovative strategy of synthesizing Ti-MWW is proposed in the present study by simply treating the ERB-1 precursor of an MWW-type boron silicate with a H2TiF6/HNO3 solution. This significantly shortens the Ti grafting process from 5 days to only a few hours and reduces the use of the structure-directing agent hexamethyleneimine (HMI); furthermore, no extraframework Ti is observed in the precursor, indicating good atomic economy. Typically, a piperidine (PI)-treated sample Ti-MWW2-1-PI exhibits a higher conversion (76.6%) than the original Ti-MWW (44.8%) in the epoxidation of 1-hexene. X-ray diffraction (XRD), inductively coupled plasma (ICP), and transmission electron microscopy (TEM) techniques are used to explain in detail the probable mechanism underlying the incorporation of Ti species into the MWW framework. X-ray photoelectron spectroscopy (XPS) is employed to study the coordinate state of the Ti and F species in the samples after treatment with a piperidine solution. This method can be applied to synthesize other kinds of lamellar-structured zeolites with heteroatoms.
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Affiliation(s)
- Shujuan Guo
- Ocean
College, Minjiang University, Fuzhou 350108, Fujian, P. R. China
| | - Yanjie Zhang
- Ocean
College, Minjiang University, Fuzhou 350108, Fujian, P. R. China
| | - Yuansong Ye
- Ocean
College, Minjiang University, Fuzhou 350108, Fujian, P. R. China
| | - Jinzhe Song
- Ocean
College, Minjiang University, Fuzhou 350108, Fujian, P. R. China
| | - Mengru Li
- School
of Chemical Engineering, Fuzhou University, Fuzhou 350116, Fujian, P. R. China
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5
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Li L, Wang J, Li Y, Yu J.
Systematic Study of Ti‐Distribution in Titanosilicate *BEA Zeolites
via
Symmetry‐Adapted Enumeration
. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lin Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of ChemistryJilin University, 2699 Qianjin Street, Changchun Jilin 130012 China
| | - Jiaze Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of ChemistryJilin University, 2699 Qianjin Street, Changchun Jilin 130012 China
| | - Yi Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of ChemistryJilin University, 2699 Qianjin Street, Changchun Jilin 130012 China
- International Center of Future Science, Jilin University Changchun, Jilin 130012 China
| | - Jihong Yu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of ChemistryJilin University, 2699 Qianjin Street, Changchun Jilin 130012 China
- International Center of Future Science, Jilin University Changchun, Jilin 130012 China
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Wang H, Deng Y, Zhou R. Aromatic sulfur compounds oxidation with H2O2 over fully coordinated and defect sites in Ti-beta zeolites: evaluation by density functional theory. Theor Chem Acc 2018. [DOI: 10.1007/s00214-018-2241-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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7
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Thiophene oxidation with H2O2 over defect and perfect titanium silicalite-1: a computational study. REACTION KINETICS MECHANISMS AND CATALYSIS 2018. [DOI: 10.1007/s11144-018-1350-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Li M, Yan X, Zhu M, Wang M, Zhou D. Insight into the stereoselectivity of TS-1 in epoxidation of cis/ trans-2-hexene: a computational study. Catal Sci Technol 2018. [DOI: 10.1039/c8cy01631c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The mechanism of the stereoselectivity forcis/trans-2-hexene epoxidation in TS-1 zeolite was studied using density functional theory and the ONIOM scheme.
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Affiliation(s)
- Mengzhao Li
- College of Chemistry and Chemical Engineering
- Liaoning Normal University
- Dalian 116029
- People's Republic of China
| | - Xiaoyue Yan
- College of Chemistry and Chemical Engineering
- Liaoning Normal University
- Dalian 116029
- People's Republic of China
| | - Meiyu Zhu
- College of Chemistry and Chemical Engineering
- Liaoning Normal University
- Dalian 116029
- People's Republic of China
| | - Meiqi Wang
- College of Chemistry and Chemical Engineering
- Liaoning Normal University
- Dalian 116029
- People's Republic of China
| | - Danhong Zhou
- College of Chemistry and Chemical Engineering
- Liaoning Normal University
- Dalian 116029
- People's Republic of China
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Yang G, Zhou L. Active Sites of M(IV)-incorporated Zeolites (M = Sn, Ti, Ge, Zr). Sci Rep 2017; 7:16113. [PMID: 29170532 PMCID: PMC5701051 DOI: 10.1038/s41598-017-16409-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 11/13/2017] [Indexed: 12/16/2022] Open
Abstract
M(IV)-incorporated zeolites have recently aroused wide interest due to outstanding catalytic effects while their active sites remain largely elusive. Here periodic density functional theory calculations are conducted finding that active sites are determined jointly by identity of M(IV) ions, topology of zeolites, type of framework species and choice of T sites. All M2(IV) active sites in BEA zeolites are penta-coordinated with chemisorption of one water while subsequent water molecules that form only H-bonds promote chemisorption of the first water, especially the second water possessing comparable or even higher adsorption strengths as the first water; Ti(IV) and Ge(IV) active sites at the intersection remain penta-coordinated and Sn(IV) and Zr(IV) active sites prefer to hexa-coordination although potentially expanded to hepta-coordination. Different from other zeolites, Ti(IV) active sites in FER zeolites are hexa-coordinated as Sn(IV) active sites, due to the promoting effect of the first water. Lewis acidic defects expand Ti(IV) active sites to hexa-coordination while inhibit the formation of hepta-coordinated Sn(IV) species. Two forms of Brϕnsted acidic defects exist for Sn(IV) sites instead of only one for Ti(IV) sites, and all M(IV) Brϕnsted acidic defects, regardless of different acidic forms and M(IV) ions, can chemisorb only one water.
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Affiliation(s)
- Gang Yang
- College of Resources and Environment, Southwest University, Chongqing, 400715, China.
- Schuit Institute of Catalysis, Eindhoven University of Technology, Eindhoven, 5600MB, The Netherlands.
| | - Lijun Zhou
- College of Resources and Environment, Southwest University, Chongqing, 400715, China
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Nie X, Ji X, Chen Y, Guo X, Song C. Mechanistic investigation of propylene epoxidation with H2O2 over TS-1: Active site formation, intermediate identification, and oxygen transfer pathway. MOLECULAR CATALYSIS 2017. [DOI: 10.1016/j.mcat.2017.08.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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11
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Luo HY, Lewis JD, Román-Leshkov Y. Lewis Acid Zeolites for Biomass Conversion: Perspectives and Challenges on Reactivity, Synthesis, and Stability. Annu Rev Chem Biomol Eng 2016; 7:663-92. [PMID: 27146555 DOI: 10.1146/annurev-chembioeng-080615-034551] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Zeolites containing Sn, Ti, Zr, Hf, Nb, or Ta heteroatoms are versatile catalysts for the activation and conversion of oxygenated molecules owing to the unique Lewis acid character of their tetrahedral metal sites. Through fluoride-mediated synthesis, hydrophobic Lewis acid zeolites can behave as water-tolerant catalysts, which has resulted in a recent surge of experimental and computational studies in the field of biomass conversion. However, many open questions still surround these materials, especially relating to the nature of their active sites. This lack of fundamental understanding is exemplified by the many dissonant results that have been described in recent literature reports. In this review, we use a molecular-based approach to provide insight into the relationship between the structure of the metal center and its reactivity toward different substrates, with the ultimate goal of providing a robust framework to understand the properties that have the strongest influence on catalytic performance for the conversion of oxygenates.
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Affiliation(s)
- Helen Y Luo
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139; , ,
| | - Jennifer D Lewis
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139; , ,
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Abstract
Metal-organic framework (MOF) materials are nanoporous materials whose crystalline character has made them attractive targets for synthesis of new materials and potential use in a diverse set of applications. The vast majority of studies of MOFs envision these materials as having ideal crystal structures. This Perspective gives an overview of the current understanding of defects in MOFs. Compared to related materials such as zeolites, the ability to detect and control defects in MOFs is nascent. Nevertheless, it is likely that defects will play a vital role in a number of contexts where MOFs are of widespread interest, so advancing our understanding of these structural features will be important in coming years. Potential origins of point defects, plane defects, and surface defects are discussed. The difficulty of defect detection in metal-organic frameworks is discussed and useful paths for future work are provided.
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Affiliation(s)
- David S Sholl
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology , 311 Ferst Drive NW, Atlanta, Georgia 30332-0100, United States
| | - Ryan P Lively
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology , 311 Ferst Drive NW, Atlanta, Georgia 30332-0100, United States
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13
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Gallo E, Glatzel P. Valence to core X-ray emission spectroscopy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:7730-46. [PMID: 24861500 DOI: 10.1002/adma.201304994] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 04/15/2014] [Indexed: 05/20/2023]
Abstract
This Progress Report discusses the chemical sensitivity of Kβ valence to core X-ray emission spectroscopy (vtc-XES) and its applications for investigating 3d-transition-metal based materials. Vtc-XES can be used for ligand identification and for the characterization of the valence electronic levels. The technique provides information that is similar to valence band photoemission spectroscopy but the sample environment can be chosen freely and thus allows measurements in presence of gases and liquids and it can be applied for measurements under in situ/operando or extreme conditions. The theoretical basis of the technique is presented using a one-electron approach and the vtc-XES spectral features are interpreted using ground state density functional theory calculations. Some recent results obtained by vtc-XES in various scientific fields are discussed to demonstrate the potential and future applications of this technique. Resonant X-ray emission spectroscopy is briefly introduced with some applications for the study of 3d and 5d-transition-metal based systems.
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Affiliation(s)
- Erik Gallo
- ESRF - The European Synchrotron, 71 Avenue des Martyres, Grenoble, 38000, France
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14
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Li H, Zhou D, Tian D, Shi C, Müller U, Feyen M, Yilmaz B, Gies H, Xiao FS, De Vos D, Yokoi T, Tatsumi T, Bao X, Zhang W. Framework Stability and Brønsted Acidity of Isomorphously Substituted Interlayer-Expanded Zeolite COE-4: A Density Functional Theory Study. Chemphyschem 2014; 15:1700-7. [DOI: 10.1002/cphc.201301033] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 02/04/2014] [Indexed: 11/05/2022]
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15
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Wang N, Zhang M, Yu Y. Density functional calculations on the distribution of Ti in a Y zeolite and its influence on acidity. RSC Adv 2014. [DOI: 10.1039/c3ra42530d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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16
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Nemeth L, Bare SR. Science and Technology of Framework Metal-Containing Zeotype Catalysts. ADVANCES IN CATALYSIS 2014. [DOI: 10.1016/b978-0-12-800127-1.00001-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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17
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Bordiga S, Groppo E, Agostini G, van Bokhoven JA, Lamberti C. Reactivity of Surface Species in Heterogeneous Catalysts Probed by In Situ X-ray Absorption Techniques. Chem Rev 2013; 113:1736-850. [DOI: 10.1021/cr2000898] [Citation(s) in RCA: 488] [Impact Index Per Article: 44.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Silvia Bordiga
- Department of Chemistry and NIS Centre of Excellence, Università di Torino and INSTM Reference Center, Via P. Giuria 7, 10125 Torino, Italy
| | - Elena Groppo
- Department of Chemistry and NIS Centre of Excellence, Università di Torino and INSTM Reference Center, Via P. Giuria 7, 10125 Torino, Italy
| | - Giovanni Agostini
- Department of Chemistry and NIS Centre of Excellence, Università di Torino and INSTM Reference Center, Via P. Giuria 7, 10125 Torino, Italy
| | - Jeroen A. van Bokhoven
- ETH Zurich, Institute for Chemical and Bioengineering, HCI E127 8093 Zurich, Switzerland
- Laboratory for Catalysis and Sustainable Chemistry (LSK) Swiss Light Source, Paul Scherrer Instituteaul Scherrer Institute, Villigen, Switzerland
| | - Carlo Lamberti
- Department of Chemistry and NIS Centre of Excellence, Università di Torino and INSTM Reference Center, Via P. Giuria 7, 10125 Torino, Italy
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Density functional theory studies on hydroxylamine mechanism of cyclohexanone ammoximation on titanium silicalite-1 catalyst. J Mol Model 2013; 19:2217-24. [DOI: 10.1007/s00894-013-1768-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2012] [Accepted: 01/14/2013] [Indexed: 10/27/2022]
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Sirijaraensre J, Limtrakul J. Mechanisms of the ammonia oxidation by hydrogen peroxide over the perfect and defective Ti species of TS-1 zeolite. Phys Chem Chem Phys 2013; 15:18093-100. [PMID: 24061207 DOI: 10.1039/c3cp52682h] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Jakkapan Sirijaraensre
- Department of Chemistry and NANOTEC Center for Nanoscale Materials Design for Green Nanotechnology, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
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Gallo E, Lamberti C, Glatzel P. Investigation of the valence electronic states of Ti(IV) in Ti silicalite-1 coupling X-ray emission spectroscopy and density functional calculations. Phys Chem Chem Phys 2011; 13:19409-19. [PMID: 21970893 DOI: 10.1039/c1cp21556f] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
We present an application of valence to core X-ray emission spectroscopy to understand the electronic structure of the industrially relevant catalyst titanium silicalite-1. The experimental spectrum was modelled within density functional theory, adopting a one electron approach, investigating the effects of different basis sets, density functionals and cluster sizes. The description of titanium silicalite-1 valence states follows the Kohn-Sham evaluation of the molecular orbitals involved in the computed transitions.
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Affiliation(s)
- Erik Gallo
- European Synchrotron Radiation Facility (ESRF), 6 Rue Jules Horowitz, BP 220 38043, Grenoble Cedex 9, France
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