1
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Radhakrishnan S, Lejaegere C, Duerinckx K, Lo WS, Morais AF, Dom D, Chandran CV, Hermans I, Martens JA, Breynaert E. Hydrogen bonding to oxygen in siloxane bonds drives liquid phase adsorption of primary alcohols in high-silica zeolites. MATERIALS HORIZONS 2023; 10:3702-3711. [PMID: 37401863 PMCID: PMC10463557 DOI: 10.1039/d3mh00888f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 06/27/2023] [Indexed: 07/05/2023]
Abstract
Upon liquid phase adsorption of C1-C5 primary alcohols on high silica MFI zeolites (Si/Al = 11.5-140), the concentration of adsorbed molecules largely exceeds the concentration of traditional adsorption sites: Brønsted acid and defect sites. Combining quantitative in situ1H MAS NMR, qualitative multinuclear NMR and IR spectroscopy, hydrogen bonding of the alcohol function to oxygen atoms of the zeolite siloxane bridges (Si-O-Si) was shown to drive the additional adsorption. This mechanism co-exists with chemi- and physi-sorption on Brønsted acid and defect sites and does not exclude cooperative effects from dispersive interactions.
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Affiliation(s)
- Sambhu Radhakrishnan
- Centre for Surface Chemistry and Catalysis - Characterization and Application Team (COK-KAT), KU Leuven, Celestijnenlaan 200F Box 2461, 3001-Heverlee, Belgium.
- NMRCoRe - NMR/X-Ray platform for Convergence Research, KU Leuven, Celestijnenlaan 200F Box 2461, 3001-Heverlee, Belgium
| | - Charlotte Lejaegere
- Centre for Surface Chemistry and Catalysis - Characterization and Application Team (COK-KAT), KU Leuven, Celestijnenlaan 200F Box 2461, 3001-Heverlee, Belgium.
| | - Karel Duerinckx
- Centre for Surface Chemistry and Catalysis - Characterization and Application Team (COK-KAT), KU Leuven, Celestijnenlaan 200F Box 2461, 3001-Heverlee, Belgium.
- NMRCoRe - NMR/X-Ray platform for Convergence Research, KU Leuven, Celestijnenlaan 200F Box 2461, 3001-Heverlee, Belgium
| | - Wei-Shang Lo
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, USA
| | - Alysson F Morais
- Centre for Surface Chemistry and Catalysis - Characterization and Application Team (COK-KAT), KU Leuven, Celestijnenlaan 200F Box 2461, 3001-Heverlee, Belgium.
- NMRCoRe - NMR/X-Ray platform for Convergence Research, KU Leuven, Celestijnenlaan 200F Box 2461, 3001-Heverlee, Belgium
| | - Dirk Dom
- Centre for Surface Chemistry and Catalysis - Characterization and Application Team (COK-KAT), KU Leuven, Celestijnenlaan 200F Box 2461, 3001-Heverlee, Belgium.
- NMRCoRe - NMR/X-Ray platform for Convergence Research, KU Leuven, Celestijnenlaan 200F Box 2461, 3001-Heverlee, Belgium
| | - C Vinod Chandran
- Centre for Surface Chemistry and Catalysis - Characterization and Application Team (COK-KAT), KU Leuven, Celestijnenlaan 200F Box 2461, 3001-Heverlee, Belgium.
- NMRCoRe - NMR/X-Ray platform for Convergence Research, KU Leuven, Celestijnenlaan 200F Box 2461, 3001-Heverlee, Belgium
| | - Ive Hermans
- Centre for Surface Chemistry and Catalysis - Characterization and Application Team (COK-KAT), KU Leuven, Celestijnenlaan 200F Box 2461, 3001-Heverlee, Belgium.
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, USA
- Department of Chemical and Biological Engineering, Wisconsin Energy Institute, University of Wisconsin-Madison, 1552 University Ave, Madison, WI 53726, USA
| | - Johan A Martens
- Centre for Surface Chemistry and Catalysis - Characterization and Application Team (COK-KAT), KU Leuven, Celestijnenlaan 200F Box 2461, 3001-Heverlee, Belgium.
- NMRCoRe - NMR/X-Ray platform for Convergence Research, KU Leuven, Celestijnenlaan 200F Box 2461, 3001-Heverlee, Belgium
| | - Eric Breynaert
- Centre for Surface Chemistry and Catalysis - Characterization and Application Team (COK-KAT), KU Leuven, Celestijnenlaan 200F Box 2461, 3001-Heverlee, Belgium.
- NMRCoRe - NMR/X-Ray platform for Convergence Research, KU Leuven, Celestijnenlaan 200F Box 2461, 3001-Heverlee, Belgium
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2
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Omojola T, Logsdail AJ, van Veen AC, Nastase SAF. A quantitative multiscale perspective on primary olefin formation from methanol. Phys Chem Chem Phys 2021; 23:21437-21469. [PMID: 34569573 DOI: 10.1039/d1cp02551a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The formation of the first C-C bond and primary olefins from methanol over zeolite and zeotype catalysts has been studied for over 40 years. Over 20 mechanisms have been proposed for the formation of the first C-C bond. In this quantitative multiscale perspective, we decouple the adsorption, desorption, mobility, and surface reactions of early species through a combination of vacuum and sub-vacuum studies using temporal analysis of products (TAP) reactor systems, and through studies with atmospheric fixed bed reactors. These results are supplemented with density functional theory calculations and data-driven physical models, using partial differential equations, that describe the temporal and spatial evolution of species. We consider the effects of steam, early degradation species, and product masking due to the inherent autocatalytic nature of the process, which all complicate the observation of the primary olefin(s). Although quantitative spectroscopic determination of the lifetimes, surface mobility, and reactivity of adspecies is still lacking in the literature, we observe that reaction barriers are competitive with adsorption enthalpies and/or activation energies of desorption, while facile diffusion occurs in the porous structures of the zeolite/zeotype catalysts. Understanding the various processes allows for quantitative evaluation of their competing energetics, which leads to molecular insights as to what governs the catalytic activity during the conversion of methanol to primary olefins over zeolite/zeotype catalysts.
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Affiliation(s)
- Toyin Omojola
- Department of Chemical Engineering, Claverton Down, University of Bath, Bath BA2 7AY, UK. .,School of Engineering, Library Road, University of Warwick, Coventry CV4 7AL, UK
| | - Andrew J Logsdail
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Park Place, Cardiff CF10 3AT, UK.
| | - André C van Veen
- School of Engineering, Library Road, University of Warwick, Coventry CV4 7AL, UK
| | - Stefan Adrian F Nastase
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Park Place, Cardiff CF10 3AT, UK.
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3
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Noreen A, Li M, Fu Y, Amoo CC, Wang J, Maturura E, Du C, Yang R, Xing C, Sun J. One-Pass Hydrogenation of CO 2 to Multibranched Isoparaffins over Bifunctional Zeolite-Based Catalysts. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03292] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Aqsa Noreen
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, P. R. China
| | - Mingquan Li
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, P. R. China
| | - Yajie Fu
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, P. R. China
| | - Cederick Cyril Amoo
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, P. R. China
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Jiayuan Wang
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, P. R. China
| | - Elton Maturura
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, P. R. China
| | - Ce Du
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, P. R. China
| | - Ruiqin Yang
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, P. R. China
| | - Chuang Xing
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou 310023, P. R. China
| | - Jian Sun
- Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
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4
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Redekop EA, Lazzarini A, Bordiga S, Olsbye U. A temporal analysis of products (TAP) study of C2-C4 alkene reactions with a well-defined pool of methylating species on ZSM-22 zeolite. J Catal 2020. [DOI: 10.1016/j.jcat.2020.03.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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5
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Plessow PN, Studt F. Theoretical Insights into the Effect of the Framework on the Initiation Mechanism of the MTO Process. Catal Letters 2018. [DOI: 10.1007/s10562-018-2330-7] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Zimmermann P, Goetsch T, Zeiner T, Enders S. Modelling of adsorption isotherms of isomers using density functional theory. Mol Phys 2017. [DOI: 10.1080/00268976.2017.1298861] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Patrick Zimmermann
- Karlsruhe Institute for Technology, Institute of Technical Thermodynamics and Refrigeration, Engler-Bunte-Ring 21 76131, Karlsruhe, Germany
| | - Thomas Goetsch
- Technical University Graz, Institute of Chemical Engineering and Environmental Technology, Inffeldgasse 25C, 8010, Graz, Austria
- Technical University Dortmund, Dortmund, Germany
| | - Tim Zeiner
- Technical University Graz, Institute of Chemical Engineering and Environmental Technology, Inffeldgasse 25C, 8010, Graz, Austria
- Technical University Dortmund, Dortmund, Germany
| | - Sabine Enders
- Karlsruhe Institute for Technology, Institute of Technical Thermodynamics and Refrigeration, Engler-Bunte-Ring 21 76131, Karlsruhe, Germany
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7
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Hendriks FC, Schmidt JE, Rombouts JA, Lammertsma K, Bruijnincx PCA, Weckhuysen BM. Probing Zeolite Crystal Architecture and Structural Imperfections using Differently Sized Fluorescent Organic Probe Molecules. Chemistry 2017; 23:6305-6314. [PMID: 28217845 PMCID: PMC5434937 DOI: 10.1002/chem.201700078] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Indexed: 01/27/2023]
Abstract
A micro‐spectroscopic method has been developed to probe the accessibility of zeolite crystals using a series of fluorescent 4‐(4‐diethylaminostyryl)‐1‐methylpyridinium iodide (DAMPI) probes of increasing molecular size. Staining large zeolite crystals with MFI (ZSM‐5) topology and subsequent mapping of the resulting fluorescence using confocal fluorescence microscopy reveal differences in structural integrity: the 90° intergrowth sections of MFI crystals are prone to develop structural imperfections, which act as entrance routes for the probes into the zeolite crystal. Polarization‐dependent measurements provide evidence for the probe molecule's alignment within the MFI zeolite pore system. The developed method was extended to BEA (Beta) crystals, showing that the previously observed hourglass pattern is a general feature of BEA crystals with this morphology. Furthermore, the probes can accurately identify at which crystal faces of BEA straight or sinusoidal pores open to the surface. The results show this method can spatially resolve the architecture‐dependent internal pore structure of microporous materials, which is difficult to assess using other characterization techniques such as X‐ray diffraction.
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Affiliation(s)
- Frank C Hendriks
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584CG, Utrecht, The Netherlands
| | - Joel E Schmidt
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584CG, Utrecht, The Netherlands
| | - Jeroen A Rombouts
- Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV A, msterdam, The Netherlands
| | - Koop Lammertsma
- Department of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV A, msterdam, The Netherlands
| | - Pieter C A Bruijnincx
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584CG, Utrecht, The Netherlands
| | - Bert M Weckhuysen
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584CG, Utrecht, The Netherlands
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8
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Bueno-Perez R, Merkling PJ, Gómez-Álvarez P, Calero S. Cadmium-BINOL Metal-Organic Framework for the Separation of Alcohol Isomers. Chemistry 2017; 23:874-885. [PMID: 27859759 PMCID: PMC5299469 DOI: 10.1002/chem.201604171] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Indexed: 11/08/2022]
Abstract
The large‐scale isolation of specific isomers of amyl alcohols for applications in the chemical, pharmaceutical, and biochemical industries represents a challenging task due to the physicochemical similarities of these structural isomers. The homochiral metal–organic framework cadmium–BINOL (BINOL=1,1′‐bi‐2‐naphthol) is suitable for the separation of pentanol isomers, combining adsorption selectivities above 5 with adsorption capacities of around 4.5 mol kg−1. Additionally, a slight ability for separation of racemic mixtures of 2‐pentanol is also detected. This behavior is explained based on matching shapes, strength of host–guest interactions, and on the network of hydrogen bonds. The last of these explains both the relative success and shortfalls of prediction methods at high loadings (ideal adsorbed solution theory) or at low coverage (separation factors), which are therefore useful here at a qualitative level, but not accurate in quantitative terms. Finally, the high selectivity of cadmium–BINOL for 1‐pentanol over its isomers offers prospects for practical applications and some room for optimizing conditions.
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Affiliation(s)
- Rocio Bueno-Perez
- Department of Physical, Chemical and Natural Systems, Universidad Pablo de Olavide, Ctra. de Utrera, km. 1, 41013, Seville, Spain
| | - Patrick J Merkling
- Department of Physical, Chemical and Natural Systems, Universidad Pablo de Olavide, Ctra. de Utrera, km. 1, 41013, Seville, Spain
| | - Paula Gómez-Álvarez
- Department of Physical, Chemical and Natural Systems, Universidad Pablo de Olavide, Ctra. de Utrera, km. 1, 41013, Seville, Spain
| | - Sofia Calero
- Department of Physical, Chemical and Natural Systems, Universidad Pablo de Olavide, Ctra. de Utrera, km. 1, 41013, Seville, Spain
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9
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Radhakrishnan S, Goossens PJ, Magusin PCMM, Sree SP, Detavernier C, Breynaert E, Martineau C, Taulelle F, Martens JA. In Situ Solid-State 13C NMR Observation of Pore Mouth Catalysis in Etherification of β-Citronellene with Ethanol on Zeolite Beta. J Am Chem Soc 2016; 138:2802-8. [DOI: 10.1021/jacs.5b13282] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sambhu Radhakrishnan
- Centre
for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan
200F, Box 2461, 3001 Heverlee, Leuven, Belgium
| | - Pieter-Jan Goossens
- Centre
for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan
200F, Box 2461, 3001 Heverlee, Leuven, Belgium
| | - Pieter C. M. M. Magusin
- Centre
for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan
200F, Box 2461, 3001 Heverlee, Leuven, Belgium
| | | | - Christophe Detavernier
- Department
of Solid State Sciences, CoCooN, Ghent University, Krijgslaan 281 (S1), Ghent 9000, Belgium
| | - Eric Breynaert
- Centre
for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan
200F, Box 2461, 3001 Heverlee, Leuven, Belgium
| | - Charlotte Martineau
- Tectospin,
Institut Lavoisier, UMR 8180, Université de Versailles st. Quentin en Yvelines, 45 Avenue des Etats Unis, 78035 Versailles, Cedex, France
- CEMHTI, CNRS UPR 3079, 1D Avenue
de la Recherche Scientifique, 45071 Orléans Cedex 2, France
| | - Francis Taulelle
- Centre
for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan
200F, Box 2461, 3001 Heverlee, Leuven, Belgium
- Tectospin,
Institut Lavoisier, UMR 8180, Université de Versailles st. Quentin en Yvelines, 45 Avenue des Etats Unis, 78035 Versailles, Cedex, France
| | - Johan A. Martens
- Centre
for Surface Chemistry and Catalysis, KU Leuven, Celestijnenlaan
200F, Box 2461, 3001 Heverlee, Leuven, Belgium
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10
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Luo Y, Wang Z, Jin S, Zhang B, Sun H, Yuan X, Yang W. Synthesis and crystal growth mechanism of ZSM-22 zeolite nanosheets. CrystEngComm 2016. [DOI: 10.1039/c6ce00773b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Gerasimov DN, Fadeev VV, Loginova AN, Lysenko SV. Hydroisomerization of long-chain paraffins: Mechanism and catalysts. Part II. CATALYSIS IN INDUSTRY 2015. [DOI: 10.1134/s2070050415030058] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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12
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Gerasimov DN, Fadeev VV, Loginova AN, Lysenko SV. Hydroisomerization of long-chain paraffins: Mechanism and catalysts. Part I. CATALYSIS IN INDUSTRY 2015. [DOI: 10.1134/s2070050415020051] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Scott AM, Burns EA, Lafferty BJ, Hill FC. Theoretical predictions of thermodynamic parameters of adsorption of nitrogen containing environmental contaminants on kaolinite. J Mol Model 2015; 21:21. [DOI: 10.1007/s00894-015-2577-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Accepted: 01/07/2015] [Indexed: 10/24/2022]
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14
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Vandegehuchte BD, Thybaut JW, Martens JA, Marin GB. Maximizing n-alkane hydroisomerization: the interplay of phase, feed complexity and zeolite catalyst mixing. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01135j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The preferred hydroisomerization of heavy alkanes in parapur on Y–ZSM22 is counterbalanced by physisorption destabilization effects which emerge at micropore saturation.
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Affiliation(s)
- B. D. Vandegehuchte
- Laboratory for Chemical Technology
- Ghent University
- Technologiepark 914
- B-9052 Ghent
- Belgium
| | - J. W. Thybaut
- Laboratory for Chemical Technology
- Ghent University
- Technologiepark 914
- B-9052 Ghent
- Belgium
| | - J. A. Martens
- Centre for Surface Chemistry and Catalysis
- KU Leuven
- Belgium
| | - G. B. Marin
- Laboratory for Chemical Technology
- Ghent University
- Technologiepark 914
- B-9052 Ghent
- Belgium
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15
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Brogaard RY, Wang CM, Studt F. Methanol–Alkene Reactions in Zeotype Acid Catalysts: Insights from a Descriptor-Based Approach and Microkinetic Modeling. ACS Catal 2014. [DOI: 10.1021/cs5014267] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Rasmus Y. Brogaard
- SUNCAT
Center
for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo
Park, California 94025, United States
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
- inGAP
Center for Research Based Innovation, Department of Chemistry, University of Oslo, N-0315 Oslo, Norway
| | - Chuan-Ming Wang
- SUNCAT
Center
for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo
Park, California 94025, United States
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
- Shanghai Research Institute of Petrochemical Technology, SINOPEC, Shanghai 201208, China
| | - Felix Studt
- SUNCAT
Center
for Interface Science and Catalysis, SLAC National Accelerator Laboratory, 2575 Sand Hill Road, Menlo
Park, California 94025, United States
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States
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16
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Shukla MK, Hill F. Plane-wave density functional theory investigation of adsorption of 2,4,6-trinitrotoluene on Al-hydroxylated (0001) surface of (4 × 4) α-alumina. J Comput Chem 2014; 35:1977-85. [PMID: 25124797 DOI: 10.1002/jcc.23712] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Revised: 06/12/2014] [Accepted: 08/03/2014] [Indexed: 11/10/2022]
Abstract
This article reports the results of the theoretical investigation of adsorption of 2,4,6-trinitrotoluene (TNT) on Al-hydroxylated (0001) surface of (4 × 4) α-alumina (α-Al2O3) using plane-wave Density Functional Theory. Sixteen water molecules were used to hydroxylate the alumina surface. The Perdew-Burke-Ernzerhof functional and the recently developed van der Waals functional (vdW-DF2) were used. The interaction of electron with core was accounted using the Vanderbilt ultrasoft pseudopotentials. It was found that hydroxylation has significant influence on the geometry of alumina and such changes are prominent up to few layers from the surface. Particularly, due to the Al-hydroxylation the oxygen layers are decomposed into sublayers and such partitioning becomes progressively weaker for interior layers. Moreover, the nature of TNT adsorption interaction is changed from covalent type on the pristine alumina surface to hydrogen-bonding interaction on the Al-hydroxylated alumina surface. TNT in parallel orientation forms several hydrogen bonds compared to that in the perpendicular orientation with hydroxyl groups of the Al-hydroxylated alumina surface. Therefore, the parallel orientation will be present in the adsorption of TNT on Al-hydroxylated (0001) surface of α-alumina. Further, the vdW-DF2 van der Waals functional was found to be most suitable and should be used for such surface adsorption investigation.
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Affiliation(s)
- Manoj K Shukla
- Environmental Laboratory, US Army Engineer Research and Development Center, 3909 Halls Ferry Road, Vicksburg, MS, 39180
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17
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Wei FF, Cui ZM, Meng XJ, Cao CY, Xiao FS, Song WG. Origin of the Low Olefin Production over HZSM-22 and HZSM-23 Zeolites: External Acid Sites and Pore Mouth Catalysis. ACS Catal 2014. [DOI: 10.1021/cs400855p] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Fang-Fang Wei
- Beijing
National Laboratory for Molecular Sciences, Laboratory for Molecular
Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, People’s Republic of China
| | - Zhi-Min Cui
- School
of Chemistry and Environmental Engineering, Beijing University of Aeronautics and Astronautics, Beijing, 100191, People’s Republic of China
| | - Xiang-Ju Meng
- Key
Lab of Applied Chemistry of Zhejiang Province, Zhejiang University, Hangzhou, 310028, People’s Republic of China
| | - Chang-Yan Cao
- Beijing
National Laboratory for Molecular Sciences, Laboratory for Molecular
Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, People’s Republic of China
| | - Feng-Shou Xiao
- Key
Lab of Applied Chemistry of Zhejiang Province, Zhejiang University, Hangzhou, 310028, People’s Republic of China
| | - Wei-Guo Song
- Beijing
National Laboratory for Molecular Sciences, Laboratory for Molecular
Nanostructures and Nanotechnology, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, People’s Republic of China
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18
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Martens JA, Verboekend D, Thomas K, Vanbutsele G, Pérez-Ramírez J, Gilson JP. Hydroisomerization and hydrocracking of linear and multibranched long model alkanes on hierarchical Pt/ZSM-22 zeolite. Catal Today 2013. [DOI: 10.1016/j.cattod.2013.03.041] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Duerinck T, Denayer JFM. Unusual chain length dependent adsorption of linear and branched alkanes on UiO-66. ADSORPTION 2013. [DOI: 10.1007/s10450-013-9568-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Gas-phase diffusion of linear and multi-branched alkanes on a carbon molecular sieve by the ZLC method. Sep Purif Technol 2013. [DOI: 10.1016/j.seppur.2012.10.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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21
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Duerinck T, Couck S, Vermoortele F, De Vos DE, Baron GV, Denayer JFM. Pulse gas chromatographic study of adsorption of substituted aromatics and heterocyclic molecules on MIL-47 at zero coverage. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2012; 28:13883-13891. [PMID: 22958218 DOI: 10.1021/la3027732] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The low coverage adsorptive properties of the MIL-47 metal organic framework toward aromatic and heterocyclic molecules are reported in this paper. The effect of molecular functionality and size on Henry adsorption constants and adsorption enthalpies of alkyl and heteroatom functionalized benzene derivates and heterocyclic molecules was studied using pulse gas chromatography. By means of statistical analysis, experimental data was analyzed and modeled using principal component analysis and partial least-squares regression. Structure-property relationships were established, revealing and confirming several trends. Among the molecular properties governing the adsorption process, vapor pressure, mean polarizability, and dipole moment play a determining role.
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Affiliation(s)
- Tim Duerinck
- Department of Chemical Engineering, Vrije Universiteit Brussel, Belgium
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22
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Evaluation of isostructural metal–organic frameworks coated capillary columns for the gas chromatographic separation of alkane isomers. Talanta 2012; 99:944-50. [DOI: 10.1016/j.talanta.2012.07.063] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Revised: 07/22/2012] [Accepted: 07/25/2012] [Indexed: 11/20/2022]
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23
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Modeling van der Waals Interactions in Zeolites with Periodic DFT: Physisorption of n-Alkanes in ZSM-22. Catal Letters 2012. [DOI: 10.1007/s10562-012-0870-9] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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24
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Sá Couto C, Matias P, Santos ET, Fernandes A, Graça I, Lopes JM, Ribeiro MF. Towards a Deep Desilication/Dealumination of NU-10 Zeolite: Shape-Selectivity Regulation. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200386] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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25
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Choudhury IR, Hayasaka K, Thybaut JW, Laxmi Narasimhan C, Denayer JF, Martens JA, Marin GB. Pt/H-ZSM-22 hydroisomerization catalysts optimization guided by Single-Event MicroKinetic modeling. J Catal 2012. [DOI: 10.1016/j.jcat.2012.03.015] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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26
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Wu H, Gong Q, Olson DH, Li J. Commensurate Adsorption of Hydrocarbons and Alcohols in Microporous Metal Organic Frameworks. Chem Rev 2012; 112:836-68. [DOI: 10.1021/cr200216x] [Citation(s) in RCA: 927] [Impact Index Per Article: 77.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Haohan Wu
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854, United States
| | - Qihan Gong
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854, United States
| | - David H. Olson
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854, United States
| | - Jing Li
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854, United States
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27
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Leus K, Couck S, Vandichel M, Vanhaelewyn G, Liu YY, Marin GB, Driessche IV, Depla D, Waroquier M, Speybroeck VV, Denayer JFM, Voort PVD. Synthesis, characterization and sorption properties of NH2-MIL-47. Phys Chem Chem Phys 2012; 14:15562-70. [DOI: 10.1039/c2cp42137b] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Novel graph machine based QSAR approach for the prediction of the adsorption enthalpies of alkanes on zeolites. Catal Today 2011. [DOI: 10.1016/j.cattod.2010.07.029] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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29
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Luebbers MT, Wu T, Shen L, Masel RI. Effects of molecular sieving and electrostatic enhancement in the adsorption of organic compounds on the zeolitic imidazolate framework ZIF-8. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:15625-15633. [PMID: 20828218 DOI: 10.1021/la102582g] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In this work, the adsorption behavior of a range of organic vapors and gases on the zeolitic imidazolate framework, ZIF-8, is investigated using an inverse gas chromatography (IGC) methodology at the zero-coverage limit and elevated temperatures. The measured thermodynamic values and surface energies for the adsorption of n-alkanes on ZIF-8 are found to be reduced from those previously reported for IRMOF-1. This reduction is most likely an effect of the predominately organic accessible surface of ZIF-8 and the resulting weaker interactions in comparison to IRMOF-1. The pore aperture size of ZIF-8, which is significantly reduced from that of IRMOF-1, is seen to introduce molecular sieving effects for branched alkanes, aromatics, and heavily halogenated compounds. Deformation polarizabilities of the adsorbates were used to calculate the specific adsorption free energy, and it is determined that the specific effects account for around 1-5 kJ/mol, or between 10% and 70% of the total free energy of adsorption for the sorbates studied (at 250 °C). The importance of electrostatic forces was seen in the significantly enhanced adsorption of propylene and ethylene in comparison to their respective alkanes and in the direct correlation shown between the specific components of the free energy of adsorption and the adsorbate's dipole moment.
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Affiliation(s)
- Matthew T Luebbers
- Department of Chemical and Biomolecular Engineering, University of Illinois, Urbana, Illinois 61801, USA
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30
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Chang N, Gu ZY, Yan XP. Zeolitic Imidazolate Framework-8 Nanocrystal Coated Capillary for Molecular Sieving of Branched Alkanes from Linear Alkanes along with High-Resolution Chromatographic Separation of Linear Alkanes. J Am Chem Soc 2010; 132:13645-7. [DOI: 10.1021/ja1058229] [Citation(s) in RCA: 327] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Na Chang
- Research Center for Analytical Sciences, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Zhi-Yuan Gu
- Research Center for Analytical Sciences, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
| | - Xiu-Ping Yan
- Research Center for Analytical Sciences, College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China
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31
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Li B, Calemma V, Gambaro C, Baron GV, Denayer JFM. Competitive Adsorption of C20−C36 Linear Paraffins on the Amorphous Microporous Silica−Alumina ERS-8 in Vapor Phase and Liquid Phase. Ind Eng Chem Res 2010. [DOI: 10.1021/ie100728h] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ben Li
- Dienst Chemische Ingenieurstechniek, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussel, Belgium, and Eni S.p.A., Divisione Refining & Marketing, Centro Ricerche di San Donato Milanese, Via Felice Maritano 26, I-20097 San Donato Milanese, Milano, Italy
| | - Vincenzo Calemma
- Dienst Chemische Ingenieurstechniek, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussel, Belgium, and Eni S.p.A., Divisione Refining & Marketing, Centro Ricerche di San Donato Milanese, Via Felice Maritano 26, I-20097 San Donato Milanese, Milano, Italy
| | - Chiara Gambaro
- Dienst Chemische Ingenieurstechniek, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussel, Belgium, and Eni S.p.A., Divisione Refining & Marketing, Centro Ricerche di San Donato Milanese, Via Felice Maritano 26, I-20097 San Donato Milanese, Milano, Italy
| | - Gino V. Baron
- Dienst Chemische Ingenieurstechniek, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussel, Belgium, and Eni S.p.A., Divisione Refining & Marketing, Centro Ricerche di San Donato Milanese, Via Felice Maritano 26, I-20097 San Donato Milanese, Milano, Italy
| | - Joeri F. M. Denayer
- Dienst Chemische Ingenieurstechniek, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussel, Belgium, and Eni S.p.A., Divisione Refining & Marketing, Centro Ricerche di San Donato Milanese, Via Felice Maritano 26, I-20097 San Donato Milanese, Milano, Italy
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32
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Finsy V, Calero S, García-Pérez E, Merkling PJ, Vedts G, De Vos DE, Baron GV, Denayer JFM. Low-coverage adsorption properties of the metal–organic framework MIL-47 studied by pulse chromatography and Monte Carlo simulations. Phys Chem Chem Phys 2009; 11:3515-21. [DOI: 10.1039/b822247a] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Smit B, Maesen TLM. Molecular Simulations of Zeolites: Adsorption, Diffusion, and Shape Selectivity. Chem Rev 2008; 108:4125-84. [DOI: 10.1021/cr8002642] [Citation(s) in RCA: 586] [Impact Index Per Article: 36.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Berend Smit
- Department of Chemical Engineering, University of California, Berkeley, California 94720-1462, Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands, and Centre Européen de Calcul Atomique et Moléculaire (CECAM), Ecole Normale Supérieure, 46 Allée d’Italie, 69007 Lyon France
| | - Theo L. M. Maesen
- Chevron, Energy Technology Company, 100 Chevron Way, Richmond, California 94802-0627
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34
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Kangas M, Salmi T, Murzin DY. Skeletal Isomerization of Butene in Fixed Beds. Part 2. Kinetic and Flow Modeling. Ind Eng Chem Res 2008. [DOI: 10.1021/ie800062m] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Matias Kangas
- Laboratory of Industrial Chemistry, Process Chemistry Centre, Åbo Akademi University, FI-20500, Turku/Åbo, Finland
| | - Tapio Salmi
- Laboratory of Industrial Chemistry, Process Chemistry Centre, Åbo Akademi University, FI-20500, Turku/Åbo, Finland
| | - Dmitry Yu. Murzin
- Laboratory of Industrial Chemistry, Process Chemistry Centre, Åbo Akademi University, FI-20500, Turku/Åbo, Finland
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35
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Finsy V, Verelst H, Alaerts L, De Vos D, Jacobs PA, Baron GV, Denayer JFM. Pore-Filling-Dependent Selectivity Effects in the Vapor-Phase Separation of Xylene Isomers on the Metal−Organic Framework MIL-47. J Am Chem Soc 2008; 130:7110-8. [DOI: 10.1021/ja800686c] [Citation(s) in RCA: 254] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vincent Finsy
- Department of Chemical Engineering, Vrije Universiteit Brussel, Brussels, Belgium, and Centrum voor Oppervlaktechemie en Katalyse, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Harry Verelst
- Department of Chemical Engineering, Vrije Universiteit Brussel, Brussels, Belgium, and Centrum voor Oppervlaktechemie en Katalyse, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Luc Alaerts
- Department of Chemical Engineering, Vrije Universiteit Brussel, Brussels, Belgium, and Centrum voor Oppervlaktechemie en Katalyse, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Dirk De Vos
- Department of Chemical Engineering, Vrije Universiteit Brussel, Brussels, Belgium, and Centrum voor Oppervlaktechemie en Katalyse, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Pierre A. Jacobs
- Department of Chemical Engineering, Vrije Universiteit Brussel, Brussels, Belgium, and Centrum voor Oppervlaktechemie en Katalyse, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Gino V. Baron
- Department of Chemical Engineering, Vrije Universiteit Brussel, Brussels, Belgium, and Centrum voor Oppervlaktechemie en Katalyse, Katholieke Universiteit Leuven, Leuven, Belgium
| | - Joeri F. M. Denayer
- Department of Chemical Engineering, Vrije Universiteit Brussel, Brussels, Belgium, and Centrum voor Oppervlaktechemie en Katalyse, Katholieke Universiteit Leuven, Leuven, Belgium
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36
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37
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Zhang L, Wang Q, Wu T, Liu YC. Understanding Adsorption and Interactions of Alkane Isomer Mixtures in Isoreticular Metal–Organic Frameworks. Chemistry 2007; 13:6387-96. [PMID: 17508381 DOI: 10.1002/chem.200700205] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Novel metal-organic frameworks (MOFs) may lead to advances in adsorption and catalysis owing to their superior properties compared to traditional nanoporous materials. A combination of the grand canonical Monte Carlo method and configurational-bias Monte Carlo simulation was used to evaluate the adsorption isotherms of C4-C6 alkane isomer mixtures in IRMOF-1 and IRMOF-6. The amounts of adsorbed linear and branched alkanes increase with increasing pressure, and the amount of branched alkanes is larger than that of the linear ones. The locations of the alkane isomer reveal that the Zn4O clusters of the IRMOFs are the preferential adsorption sites for the adsorbate molecules. The interaction energy between the Zn4O cluster and the adsorbate is larger than that between the organic linker and the adsorbate. It was further confirmed that the Zn4O cluster plays a much more important role in adsorption by pushing a probe molecule into the pore at positions closer to the Zn4O cluster. It is difficult for branched alkane molecules to approach the Zn4O cluster of IRMOF-6 closely owing to strong spatial hindrance. In addition, the adsorption selectivity is discussed from the viewpoints of thermodynamics and kinetics, and the diffusion behavior of n-butane and 2-methylpropane were investigated to illustrate the relationship between diffusion and adsorption.
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Affiliation(s)
- Li Zhang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, P.R. China
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38
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Alaerts L, Kirschhock CEA, Maes M, van der Veen MA, Finsy V, Depla A, Martens JA, Baron GV, Jacobs PA, Denayer JFM, De Vos DE. Selective Adsorption and Separation of Xylene Isomers and Ethylbenzene with the Microporous Vanadium(IV) Terephthalate MIL-47. Angew Chem Int Ed Engl 2007; 46:4293-7. [PMID: 17477460 DOI: 10.1002/anie.200700056] [Citation(s) in RCA: 467] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Luc Alaerts
- Centre for Surface Chemistry and Catalysis, Katholieke Universiteit Leuven, Kasteelpark Arenberg 23, 3001 Leuven, Belgium
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39
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Alaerts L, Kirschhock C, Maes M, van der Veen M, Finsy V, Depla A, Martens J, Baron G, Jacobs P, Denayer J, De Vos D. Selective Adsorption and Separation of Xylene Isomers and Ethylbenzene with the Microporous Vanadium(IV) Terephthalate MIL-47. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200700056] [Citation(s) in RCA: 81] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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40
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García-Pérez E, Dubbeldam D, Liu B, Smit B, Calero S. A computational method to characterize framework aluminum in aluminosilicates. Angew Chem Int Ed Engl 2007; 46:276-8. [PMID: 17096443 DOI: 10.1002/anie.200603136] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Elena García-Pérez
- Departamento Sistemas Físicos, Químicos y Naturales, Universidad Pablo de Olavide, Ctra. Utrera km. 1, 41013 Sevilla, Spain
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41
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García-Pérez E, Dubbeldam D, Liu B, Smit B, Calero S. A Computational Method To Characterize Framework Aluminum in Aluminosilicates. Angew Chem Int Ed Engl 2007. [DOI: 10.1002/ange.200603136] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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42
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Denayer JFM, Ocakoglu RA, Thybaut J, Marin G, Jacobs P, Martens J, Baron GV. n- and Isoalkane Adsorption Mechanisms on Zeolite MCM-22. J Phys Chem B 2006; 110:8551-8. [PMID: 16640405 DOI: 10.1021/jp060657s] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Low-coverage adsorption properties (Henry constants, adsorption enthalpy, and entropy) of linear and branched alkanes (C3-C8) on zeolite MCM-22 were determined using the chromatographic technique at temperatures between 420 and 540 K. It was found that adsorption enthalpy and entropy of linear alkanes vary in a nonmonotonic way with carbon number. The adsorption behavior of alkanes was rationalized on the basis of the pore geometry. Short molecules prefer to reside in the pockets of the MCM-22 supercage, where they maximize energetic interaction with the zeolite. Longer molecules reside in the larger central part of the supercage. For carbon numbers up to six, singly branched alkanes are selectively adsorbed over their linear counterparts. This preference originates from the entropic advantage of singly branched molecules inside MCM-22 supercages, where these species have high rotational freedom because of their small length.
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Affiliation(s)
- Joeri F M Denayer
- Dienst Chemische Ingenieurstechniek, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussel, Belgium.
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43
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Chen B, Liang C, Yang J, Contreras DS, Clancy YL, Lobkovsky EB, Yaghi OM, Dai S. A Microporous Metal–Organic Framework for Gas-Chromatographic Separation of Alkanes. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200502844] [Citation(s) in RCA: 208] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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44
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Chen B, Liang C, Yang J, Contreras DS, Clancy YL, Lobkovsky EB, Yaghi OM, Dai S. A Microporous Metal–Organic Framework for Gas-Chromatographic Separation of Alkanes. Angew Chem Int Ed Engl 2006; 45:1390-3. [PMID: 16425335 DOI: 10.1002/anie.200502844] [Citation(s) in RCA: 882] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Banglin Chen
- Department of Chemistry, University of Texas-Pan American, Edinburg, TX 78541-2999, USA.
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45
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Gribov EN, Sastre G, Corma A. Influence of Pore Dimension and Sorption Configuration on the Heat of Sorption of Hexane on Monodimensional Siliceous Zeolites. J Phys Chem B 2005; 109:23794-803. [PMID: 16375363 DOI: 10.1021/jp052462a] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Sorption of n-hexane on monodimensional pure silica SSZ-35, CIT-5, ZSM-12, and ZSM-22 zeolites with different pore dimension and on recently synthesized ITQ-29 was studied by IR spectroscopic and computational chemistry methods. Heats of sorption of n-hexane on these zeolites was determined experimentally from the temperature dependence of the intensity of IR bands of sorbed hexane as well as from theoretical calculations. Calculations have shown the different orientations of sorbed hexane molecules inside zeolite channels, which depend on the type of zeolite and loading. At high loadings, ordering of hexane inside the channels is observed due to optimization of sorbate-sorbate and sorbate-zeolite interaction energies. Such ordering is responsible for the increase of the sorption energy. A decrease of the sorption energy upon increasing the pore dimension of zeolite was observed, in agreement with results previously published in the literature. Effects of pore diameter of zeolites and ordering of molecules inside zeolite channels on the sorption energy of hexane are discussed.
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Affiliation(s)
- Evgueni N Gribov
- Instituto de Tecnologia Quimica UPV-CSIC, Universidad Politécnica de Valencia, Av. Los Naranjos s/n, 46022 Valencia, Spain
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46
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Exploiting Pore or Cavity Size and Shape in Separating Linear and Branched Hydrocarbons by Inverse Selectivity: Enthalpy, Entropy and Packing Effects. ADSORPTION 2005. [DOI: 10.1007/s10450-005-5897-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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47
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Huybrechts W, Vanbutsele G, Houthoofd KJ, Bertinchamps F, Laxmi Narasimhan CS, Gaigneaux EM, Thybaut JW, Marin GB, Denayer JFM, Baron GV, Jacobs PA, Martens JA. Skeletal isomerization of octadecane on bifunctional ZSM-23 zeolite catalyst. Catal Letters 2005. [DOI: 10.1007/s10562-004-3461-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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48
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Denayer JFM, Ocakoglu RA, Arik IC, Kirschhock CEA, Martens JA, Baron GV. Rotational Entropy Driven Separation of Alkane/Isoalkane Mixtures in Zeolite Cages. Angew Chem Int Ed Engl 2005; 44:400-3. [PMID: 15624183 DOI: 10.1002/anie.200454058] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Joeri F M Denayer
- Department of Chemical Engineering, Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussel, Belgium.
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49
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Rotational Entropy Driven Separation of Alkane/Isoalkane Mixtures in Zeolite Cages. Angew Chem Int Ed Engl 2005. [DOI: 10.1002/ange.200454058] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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50
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Nieminen V, Kangas M, Salmi T, Murzin DY. Kinetic Study of n-Butane Isomerization over Pt−H-Mordenite. Ind Eng Chem Res 2004. [DOI: 10.1021/ie049544q] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ville Nieminen
- Laboratory of Industrial Chemistry, Process Chemistry Centre, Åbo Akademi University, FIN-20500, Turku/Åbo, Finland
| | - Matias Kangas
- Laboratory of Industrial Chemistry, Process Chemistry Centre, Åbo Akademi University, FIN-20500, Turku/Åbo, Finland
| | - Tapio Salmi
- Laboratory of Industrial Chemistry, Process Chemistry Centre, Åbo Akademi University, FIN-20500, Turku/Åbo, Finland
| | - Dmitry Yu. Murzin
- Laboratory of Industrial Chemistry, Process Chemistry Centre, Åbo Akademi University, FIN-20500, Turku/Åbo, Finland
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