1
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Liu J, Zhang Y, Peng C. Recent Advances Hydrogenation of Carbon Dioxide to Light Olefins over Iron-Based Catalysts via the Fischer-Tropsch Synthesis. ACS OMEGA 2024; 9:25610-25624. [PMID: 38911759 PMCID: PMC11191082 DOI: 10.1021/acsomega.4c03075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2024] [Revised: 05/21/2024] [Accepted: 05/24/2024] [Indexed: 06/25/2024]
Abstract
The massive burning of fossil fuels has been important for economic and social development, but the increase in the CO2 concentration has seriously affected environmental sustainability. In industrial and agricultural production, light olefins are one of the most important feedstocks. Therefore, the preparation of light olefins by CO2 hydrogenation has been intensively studied, especially for the development of efficient catalysts and for the application in industrial production. Fe-based catalysts are widely used in Fischer-Tropsch synthesis due to their high stability and activity, and they also exhibit excellent catalytic CO2 hydrogenation to light olefins. This paper systematically summarizes and analyzes the reaction mechanism of Fe-based catalysts, alkali and transition metal modifications, interactions between active sites and carriers, the synthesis process, and the effect of the byproduct H2O on catalyst performance. Meanwhile, the challenges to the development of CO2 hydrogenation for light olefin synthesis are presented, and future development opportunities are envisioned.
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Affiliation(s)
- Jiangtao Liu
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, 116024 Dalian, Liaoning P.R. China
| | - Yongchun Zhang
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, 116024 Dalian, Liaoning P.R. China
| | - Chong Peng
- State Key Laboratory of Fine
Chemicals, School of Chemical Engineering, Dalian University of Technology, 116024 Dalian, Liaoning P.R. China
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2
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Veselý O, Shamzhy M, Roth WJ, Morris RE, Čejka J. Controlling Crystal Morphology of Anisotropic Zeolites with Elemental Composition. CRYSTAL GROWTH & DESIGN 2024; 24:2406-2414. [PMID: 38525100 PMCID: PMC10958493 DOI: 10.1021/acs.cgd.3c01312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 02/28/2024] [Accepted: 02/28/2024] [Indexed: 03/26/2024]
Abstract
The morphology of zeolite crystals strongly affects their textural, catalytic, and mechanical attributes. However, controlling zeolite crystal morphology without using modifiers or structure-directing agents remains a challenging task because of our limited understanding of the relationships between zeolite crystal shape, crystallization mechanism, and composition of the starting synthesis mixture. In this study, we aimed at developing a general method for controlling the morphology of zeolites by assessing the impact of the Si/T molar ratio of the synthesis gel on the growth rate of zeolite crystals in various crystallographic directions and on the final crystal morphology of the UTL germanosilicate with a 2D system of intersecting 14- and 12-ring pores. Our results showed that flat UTL crystals progressively thicken with the Si/Ge molar ratio, demonstrating that Ge concentration controls the relative rate of crystal growth in the perpendicular direction to the pore system. The morphology of other zeolites and zeotypes with an anisotropic structure, including AFI (12R), IFR (12R), MWW (10-10R), and IWW (12-10-8R), can also be predicted based on their Si/T ratio, suggesting a systematic pattern across zeolite structures and in a wide range of zeolite framework elements. Combined, these findings introduce a facile and cost-efficient method for directly controlling crystal morphology of zeolites with anisotropic structures with a high potential for scale-up while providing further insights into the role of elemental composition in zeolite crystal growth.
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Affiliation(s)
- Ondřej Veselý
- Faculty
of Sciences, Charles University, Hlavova 8, 128 43 Prague 2, Czech Republic
| | - Mariya Shamzhy
- Faculty
of Sciences, Charles University, Hlavova 8, 128 43 Prague 2, Czech Republic
| | - Wiesław J. Roth
- Faculty
of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland
| | - Russell E. Morris
- EaStChem
School of Chemistry, University of St. Andrews, North Haugh, Fife, St. Andrews KY16 9ST, U.K.
| | - Jiří Čejka
- Faculty
of Sciences, Charles University, Hlavova 8, 128 43 Prague 2, Czech Republic
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3
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Yang J, Liu S, Liu Y, Zhou L, Wen H, Wei H, Shen R, Wu X, Jiang J, Li B. Review and perspectives on TS-1 catalyzed propylene epoxidation. iScience 2024; 27:109064. [PMID: 38375219 PMCID: PMC10875142 DOI: 10.1016/j.isci.2024.109064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024] Open
Abstract
Titanium silicate zeolite (TS-1) is widely used in the research on selective oxidations of organic substrates by H2O2. Compared with the chlorohydrin process and the hydroperoxidation process, the TS-1 catalyzed hydroperoxide epoxidation of propylene oxide (HPPO) has advantages in terms of by-products and environmental friendliness. This article reviews the latest progress in propylene epoxidation catalyzed by TS-1, including the HPPO process and gas phase epoxidation. The preparation and modification of TS-1 for green and sustainable production are summarized, including the use of low-cost feedstocks, the development of synthetic routes, strategies to enhance mass transfer in TS-1 crystal and the enhancement of catalytic performance after modification. In particular, this article summarizes the catalytic mechanisms and advanced characterization techniques for propylene epoxidation in recent years. Finally, the present situation, development prospect and challenge of propylene epoxidation catalyzed by TS-1 were prospected.
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Affiliation(s)
- Jimei Yang
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
| | - Shuling Liu
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
| | - Yanyan Liu
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
- College of Science, Henan Agricultural University, 63 Nongye Road, Zhengzhou 450002, P.R. China
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab for Biomass Chemical Utilization, Nanjing 210042, P.R. China
| | - Limin Zhou
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab for Biomass Chemical Utilization, Nanjing 210042, P.R. China
| | - Hao Wen
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
| | - Huijuan Wei
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
| | - Ruofan Shen
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
| | - Xianli Wu
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
| | - Jianchun Jiang
- Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab for Biomass Chemical Utilization, Nanjing 210042, P.R. China
| | - Baojun Li
- College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China
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4
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Elkhafif OW, Hassan HK, Ceblin MU, Farkas A, Jacob T. Influence of Residual Water Traces on the Electrochemical Performance of Hydrophobic Ionic Liquids for Magnesium-Containing Electrolytes. CHEMSUSCHEM 2023; 16:e202300421. [PMID: 37338003 DOI: 10.1002/cssc.202300421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 06/21/2023]
Abstract
A trace amount of water is typically unavoidable as an impurity in ionic liquids, which is a huge challenge for their application in Mg-ion batteries. Here, we employed molecular sieves of different pore diameters (3, 4, and 5 Å), to effectively remove the trace amounts of water from 1-methyl-1-propylpiperidinium bis(trifluoromethylsulfonyl)imide (MPPip-TFSI) and 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (BMP-TFSI). Notably, after sieving (water content <1 mg ⋅ L-1 ), new anodic peaks arise that are attributed to the formation of different anion-cation structures induced by minimizing the influence of hydrogen bonds. Furthermore, electrochemical impedance spectroscopy (EIS) reveals that the electrolyte resistance decreases by ∼10 % for MPPip-TFSI and by ∼28 % for BMP-TFSI after sieving. The electrochemical Mg deposition/dissolution is investigated in MPPip-TFSI/tetraglyme (1 : 1)+100 mM Mg(TFSI)2 +10 mM Mg(BH4 )2 using Ag/AgCl and Mg reference electrodes. The presence of a trace amount of water leads to a considerable shift of 0.9 V vs. Mg2+/ Mg in the overpotential of Mg deposition. In contrast, drying of MPPip-TFSI enhances the reversibility of Mg deposition/dissolution and suppresses the passivation of the Mg electrode.
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Affiliation(s)
- Omar W Elkhafif
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
| | - Hagar K Hassan
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
- Helmholtz Institute Ulm (HIU) - Electrochemical Energy Storage, Helmholtzstr. 11, D-89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P.O. Box 3640, D-76021, Karlsruhe, Germany
| | - Maximilian U Ceblin
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
| | - Attila Farkas
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
| | - Timo Jacob
- Institute of Electrochemistry, Ulm University, Albert-Einstein-Allee 47, 89081, Ulm, Germany
- Helmholtz Institute Ulm (HIU) - Electrochemical Energy Storage, Helmholtzstr. 11, D-89081, Ulm, Germany
- Karlsruhe Institute of Technology (KIT), P.O. Box 3640, D-76021, Karlsruhe, Germany
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5
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Fabricating ZSM-5 zeolite/ polycaprolactone nano-fibers co-loaded with dexamethasone and ascorbic acid: Potential application in osteogenic differentiation of human adipose-derived stem cells. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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6
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Elucidation of radical- and oxygenate-driven paths in zeolite-catalysed conversion of methanol and methyl chloride to hydrocarbons. Nat Catal 2022; 5:605-614. [PMID: 35892076 PMCID: PMC7613158 DOI: 10.1038/s41929-022-00808-0] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 05/18/2022] [Indexed: 11/08/2022]
Abstract
Understanding hydrocarbon generation in the zeolite-catalysed conversions of methanol and methyl chloride requires advanced spectroscopic approaches to distinguish the complex mechanisms governing C-C bond formation, chain growth and the deposition of carbonaceous species. Here operando photoelectron photoion coincidence (PEPICO) spectroscopy enables the isomer-selective identification of pathways to hydrocarbons of up to C14 in size, providing direct experimental evidence of methyl radicals in both reactions and ketene in the methanol-to-hydrocarbons reaction. Both routes converge to C5 molecules that transform into aromatics. Operando PEPICO highlights distinctions in the prevalence of coke precursors, which is supported by electron paramagnetic resonance measurements, providing evidence of differences in the representative molecular structure, density and distribution of accumulated carbonaceous species. Radical-driven pathways in the methyl chloride-to-hydrocarbons reaction(s) accelerate the formation of extended aromatic systems, leading to fast deactivation. By contrast, the generation of alkylated species through oxygenate-driven pathways in the methanol-to-hydrocarbons reaction extends the catalyst lifetime. The findings demonstrate the potential of the presented methods to provide valuable mechanistic insights into complex reaction networks.
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7
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González-Crisostomo JC, López-Juárez R, Yocupicio-Gaxiola RI, Villanueva E, Zavala-Flores E, Petranovskii V. Chabazite Synthesis and Its Exchange with Ti, Zn, Cu, Ag and Au for Efficient Photocatalytic Degradation of Methylene Blue Dye. Int J Mol Sci 2022; 23:ijms23031730. [PMID: 35163652 PMCID: PMC8836194 DOI: 10.3390/ijms23031730] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Revised: 01/19/2022] [Accepted: 01/30/2022] [Indexed: 02/06/2023] Open
Abstract
A chabazite-type zeolite was prepared by the hydrothermal method. Before ion exchange, the chabazite was activated with ammonium chloride (NH4Cl). The ion exchange process was carried out at a controlled temperature and constant stirring to obtain ion-exchanged chabazites of Ti4+ chabazite (TiCHA), Zn2+ chabazite (ZnCHA), Cu2+ chabazite (CuCHA), Ag+ chabazite (AgCHA) and Au3+ chabazite (AuCHA). Modified chabazite samples were characterized by X-ray diffraction (XRD), scanning electron microscope equipped with energy-dispersive spectroscopy (SEM-EDS), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), N2 adsorption methods and UV–visible diffuse reflectance spectroscopy (DRS). XRD results revealed that the chabazite structure did not undergo any modification during the exchange treatments. The photocatalytic activity of chabazite samples was evaluated by the degradation of methylene blue (MB) in the presence of H2O2 under ultraviolet (UV) light illumination. The photodegradation results showed a higher degradation efficiency of modified chabazites, compared to the synthesized chabazite. CuCHA showed an efficiency of 98.92% in MB degradation, with a constant of k = 0.0266 min−1 following a first-order kinetic mechanism. Then, it was demonstrated that the modified chabazites could be used for the photodegradation of dyes.
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Affiliation(s)
- José C. González-Crisostomo
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autonoma de México, Km 107 Carretera Tijuana-Ensenada, Ensenada 22800, Mexico; (R.I.Y.-G.); (V.P.)
- Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma de Baja California, Calzada Tecnológico, Mesa de Otay, Tijuana 22390, Mexico;
- Correspondence:
| | - Rigoberto López-Juárez
- Instituto de Investigaciones en Materiales, Unidad Morelia, Universidad Nacional Autónoma de México, Antigua Carretera a Pátzcuaro, ExHacienda San José de la Huerta, Morelia 58190, Mexico;
| | - Rosario Isidro Yocupicio-Gaxiola
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autonoma de México, Km 107 Carretera Tijuana-Ensenada, Ensenada 22800, Mexico; (R.I.Y.-G.); (V.P.)
| | - Eric Villanueva
- Facultad de Ciencias de la Ingeniería y Tecnología, Unidad Valle de las Palmas, Universidad Autónoma de Baja California, Blvd. Universitario, Tijuana 2150018, Mexico;
| | - Ethiel Zavala-Flores
- Facultad de Ciencias Químicas e Ingeniería, Universidad Autónoma de Baja California, Calzada Tecnológico, Mesa de Otay, Tijuana 22390, Mexico;
| | - Vitalii Petranovskii
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autonoma de México, Km 107 Carretera Tijuana-Ensenada, Ensenada 22800, Mexico; (R.I.Y.-G.); (V.P.)
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8
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Wang X, Zhao G, Miao L, Hong Z, Huang Y, Zhu Z. Side-chain alkylation of toluene with methanol over cesium-ion-exchanged zeolite LSX and X catalysts. NEW J CHEM 2022. [DOI: 10.1039/d1nj04239d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalyst CsLSX has a higher basic cation exchange capacity than that of the catalyst CsX. The higher number of aluminum atoms allows the CsLSX catalyst to have more oxygen atoms with a negative charge (Oδ−) in the zeolite framework.
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Affiliation(s)
- Xiaoxia Wang
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Guoqing Zhao
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Lei Miao
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Zhe Hong
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Yanqing Huang
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
| | - Zhirong Zhu
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, P. R. China
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9
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Cao P, Zheng W, Sun W, Zhao L. The shape selectivity of zeolites in isobutane alkylation: An investigation using CBMC and MD simulations. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116966] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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10
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Keyvanloo Z, Nakhaei Pour A, Moosavi F, Kamali Shahri SM. Molecular dynamic simulation studies of adsorption and diffusion behaviors of methanol and ethanol through ZSM-5 zeolite. J Mol Graph Model 2021; 110:108048. [PMID: 34656942 DOI: 10.1016/j.jmgm.2021.108048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 10/08/2021] [Accepted: 10/08/2021] [Indexed: 12/15/2022]
Abstract
Due to the importance of synthesis gas's entire conversion to methanol, the separation of methanol from unconverted synthesis gas is an industrial challenge. In this work, the influence of temperature, guest molecules concentrations (methanol and ethanol), and acid site density (Si/Al) of zeolites on the diffusion of methanol and ethanol, pure and binary mixture (80% methanol and 20% ethanol) in silicalite-1 and HZSM-5 (Si/Al = 47 and 23) were studied by using of the COMPASS force-field molecular dynamics method. Also, the adsorption of pure methanol and ethanol and binary mixture through these zeolites has been studied by using the Grand Canonical Monte Carlo (GCMC) method. The calculated adsorption rate and isosteric heat of adsorption for ethanol are lower and higher than methanol, respectively. The results of the binary mixture show that HZSM-5 (Si/Al = 23) has the lowest adsorption selectivity and most diffusion selectivity. The calculated diffusion coefficients of methanol and ethanol guest molecules decreased with rising guest molecule concentration and Si/Al-ratios. The effect of both agents was investigated by analysis of mean square displacement (MSD) and RDF diagram.
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Affiliation(s)
- Zahra Keyvanloo
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Ali Nakhaei Pour
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran.
| | - Fatemeh Moosavi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Seyed Mehdi Kamali Shahri
- Department of Chemical Engineering, Pennsylvania State University, State College, PA, 16801, United States
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11
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Kuterasiński Ł, Gackowski M, Podobiński J, Rutkowska-Zbik D, Datka J. Nitrogen as a Probe Molecule for the IR Studies of the Heterogeneity of OH Groups in Zeolites. Molecules 2021; 26:molecules26206261. [PMID: 34684844 PMCID: PMC8538926 DOI: 10.3390/molecules26206261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/09/2021] [Accepted: 10/13/2021] [Indexed: 11/16/2022] Open
Abstract
One of the methods of IR studies of the heterogeneity of Si–OH–Al groups in zeolites is the investigation of the frequency shift of the band of free OH bands restored upon the adsorption of ammonia and subsequent desorption at increasing temperatures. We extended this method by following the shift of the band of the OH group interacting by hydrogen bonding with nitrogen. The advantage of nitrogen, compared with CO, which has been commonly used as a probe molecule in studies on hydrogen bonding, is that for nitrogen the frequency shift is smaller than for CO and therefore there is no overlapping of shifted OH band with the bands of ammonium ions. For zeolites NaHY, HMFI, and HBEA, the frequency shift of IR bands of both free and hydrogen-bonded Si–OH–Al with the increase of ammonia desorption temperature evidences the heterogeneity of these hydroxyls. On the other hand, in zeolite HFAU of Si/Al = 31, Si–OH–Al were found to be homogeneous. Heterogeneity of OH groups may be explained both by the presence of Si–OH–Al of various number of Al near the bridge and of Si–OH–Al of various geometry.
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12
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Devos J, Shah MA, Dusselier M. On the key role of aluminium and other heteroatoms during interzeolite conversion synthesis. RSC Adv 2021; 11:26188-26210. [PMID: 35479451 PMCID: PMC9037665 DOI: 10.1039/d1ra02887a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 07/06/2021] [Indexed: 02/05/2023] Open
Abstract
Interzeolite conversion, a synthesis technique for several zeolite frameworks, has recently yielded a large amount of high-performing catalytic zeolites. Yet, the mechanisms behind the success of interzeolite conversion remain unknown. Conventionally, small oligomers with structural similarity between the parent and daughter zeolites have been proposed, despite the fact these have never been observed experimentally. Moreover, recent synthesis examples contradict the theory that structural similarity between the parent and daughter zeolites enhances interzeolite conversion. In this perspective it is proposed that heteroatoms, such as aluminium, are key players in the processes that determine the successful conversion of the parent zeolite. The role of Al during parent dissolution, and all consecutive stages of crystallization, are discussed by revising a vast body of literature. By better understanding the role of Al during interzeolite conversions, it is possible to elucidate some generic features and to propose some synthetic guidelines for making advantageous catalytic zeolites. The latter analysis was also expanded to the interconversion of zeotype materials where heteroatoms such as tin are present. The crucial roles of aluminium in driving and controlling interzeolite conversion, a useful catalyst synthesis protocol, are put under scrutiny.![]()
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Affiliation(s)
- Julien Devos
- Department of Microbial and Molecular Systems, Centre for Sustainable Catalysis and Engineering (CSCE), KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium www.dusselier-lab.org
| | - Meera A Shah
- Department of Microbial and Molecular Systems, Centre for Sustainable Catalysis and Engineering (CSCE), KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium www.dusselier-lab.org
| | - Michiel Dusselier
- Department of Microbial and Molecular Systems, Centre for Sustainable Catalysis and Engineering (CSCE), KU Leuven Celestijnenlaan 200F 3001 Leuven Belgium www.dusselier-lab.org
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13
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Dang LV, Nguyen TTM, Do DV, Le ST, Pham TD, Le ATM. Study on the Synthesis of Chabazite Zeolites via Interzeolite Conversion of Faujasites. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2021; 2021:5554568. [PMID: 33859863 PMCID: PMC8024103 DOI: 10.1155/2021/5554568] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/06/2021] [Accepted: 03/21/2021] [Indexed: 06/12/2023]
Abstract
The interzeolite conversion of faujasite (FAU-type) zeolites to chabazite (CHA-type) zeolite in the presence of N,N,N-trimethyladamantammonium and N,N,N-dimethylethylcyclohexylammonium cations was investigated over a large compositional range by carefully controlling the reaction mixture compositions. Highly crystalline CHA zeolites were also obtained by the transformation of several zeolite types including EMT, LTL, LEV, RTH, and MFI frameworks. The formation of CHA zeolite from FAU zeolite precursors was substantially faster than that from zeolite L with a similar composition. High-silica CHA zeolites were also produced successfully using a mixture of TMAda with a number of less expensive organic structure-directing agents. The CHA zeolite materials have been synthesized with high crystallinity and with a Si/Al ratio ranging from 5 to 140. Our data support the importance of structural similarity between the zeolite precursors, nucleation/crystallization processes, and the zeolite product in the interzeolite conversion compared to conventional amorphous aluminosilicate gels. Our synthetic methods could be used to prepare other 8-membered ring zeolites such as AEI and AFX frameworks, potential candidates for selective catalytic reduction of NOx, light olefin production, and CO2 abatement.
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Affiliation(s)
- Long Van Dang
- VNU-University of Science, Vietnam National University, Hoan Kiem, Hanoi 100000, Vietnam
| | - Thu Thi Minh Nguyen
- VNU-University of Science, Vietnam National University, Hoan Kiem, Hanoi 100000, Vietnam
| | - Dang Van Do
- VNU-University of Science, Vietnam National University, Hoan Kiem, Hanoi 100000, Vietnam
| | - Son Thanh Le
- VNU-University of Science, Vietnam National University, Hoan Kiem, Hanoi 100000, Vietnam
| | - Trong Dinh Pham
- VNU-University of Science, Vietnam National University, Hoan Kiem, Hanoi 100000, Vietnam
| | - Anh Thi Mai Le
- VNU-University of Science, Vietnam National University, Hoan Kiem, Hanoi 100000, Vietnam
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14
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Chang S, Park SH, Cho SJ. Locating Structure Directing Agent and Al in
CHA
: Combined Study of Structure Determination of X‐Ray Powder Diffraction and Classical Lattice Energy Calculation. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12231] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shuai Chang
- Department of Chemical Engineering Chonnam National University, Yongbong‐ro 77, Buk‐gu Gwangju 61186 Korea
| | - Soon Hee Park
- Super Ultra Low Energy & Emission Vehicle Center Korea University, 145 Anam‐ro, Seongbuk‐gu Seoul 02841 Korea
| | - Sung June Cho
- Department of Chemical Engineering Chonnam National University, Yongbong‐ro 77, Buk‐gu Gwangju 61186 Korea
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15
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Al-ZSM-5 Nanocrystal Catalysts Grown from Silicalite-1 Seeds for Methane Conversion. ENERGIES 2021. [DOI: 10.3390/en14020485] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
This study evaluated Al-ZSM-5 nanocrystals grown from silicalite-1 seed crystals as catalysts for the methane dehydroaromatization (MDA) reaction. Silicalite-1 seed crystals sized between 30 and 40 nm were used to grow Al-ZSM-5 under various synthesis conditions. The size of Al-ZSM-5 was significantly affected by the Si/Al ratio (SAR), synthesis time, and silica nutrients/seed crystal ratio (NSR). Larger crystals were obtained with an increased SAR in the synthesis sols. Gradual growth of Al-ZSM-5 occurred with synthesis time, although the growth in crystal size ceased at 5 h of synthesis at 120 °C, indicating the rapid growth of Al-ZSM-5 aided by the silicalite-1 seeds. Precise tuning of Al-ZSM-5 size was possible by changing the nutrient/silicalite-1 seed ratio; a higher NSR led to larger crystals. Two representative Al-ZSM-5 crystals with SARs of 35 and 140 were prepared for catalyst testing, and the crystal sizes were tailored to <100 nm by controlling NSR. The MDA reaction was conducted in the presence of the prepared Al-ZSM-5. The catalyst size exhibited distinct differences in catalyst stability, while the SAR of catalysts did not produce noticeable changes in the catalyst stability of the Al-ZSM-5 crystals and commercial zeolites in this reaction system.
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Catizzone E, Aloise A, Giglio E, Ferrarelli G, Bianco M, Migliori M, Giordano G. MFI vs. FER zeolite during methanol dehydration to dimethyl ether: The crystal size plays a key role. CATAL COMMUN 2021. [DOI: 10.1016/j.catcom.2020.106214] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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17
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Prospects for a green methanol thermo-catalytic process from CO2 by using MOFs based materials: A mini-review. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2020.101361] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Pang T, Yang X, Yuan C, Elzatahry AA, Alghamdi A, He X, Cheng X, Deng Y. Recent advance in synthesis and application of heteroatom zeolites. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.04.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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19
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Grzybek J, Kubů M, Roth WJ, Gil B, Čejka J, Kasneryk V. Structural transformation and chemical modifications of the unusual layered zeolite MWW form SSZ-70. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.03.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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Cooperation of hierarchical pores with strong Brønsted acid sites on SAPO-34 catalysts for the glycerol dehydration to acrolein. J Catal 2020. [DOI: 10.1016/j.jcat.2020.05.038] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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21
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Silva DSA, Castelblanco WN, Piva DH, de Macedo V, Carvalho KT, Urquieta-González EA. Tuning the Brønsted and Lewis acid nature in HZSM-5 zeolites by the generation of intracrystalline mesoporosity—Catalytic behavior for the acylation of anisole. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111026] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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22
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Rainer DN, Rice CM, Warrender SJ, Ashbrook SE, Morris RE. Mechanochemically assisted hydrolysis in the ADOR process. Chem Sci 2020; 11:7060-7069. [PMID: 33033606 PMCID: PMC7499815 DOI: 10.1039/d0sc02547j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 06/12/2020] [Indexed: 12/13/2022] Open
Abstract
The ADOR (Assembly-Disassembly-Organisation-Reassembly) process for zeolites has been shown to produce a number of previously unknown frameworks inaccessible through conventional synthesis methods. Here, we present successful mechanochemically assisted hydrolysis of germanosilicate zeolite UTL leading to ADOR products under mild conditions, low amounts of solvent and in short reaction times. The expansion of zeolite synthesis into the realm of mechanochemistry opens up feasible pathways regarding the production of these materials, especially for industrial purposes, as well as an exciting application for economical enrichment of materials with the low natural abundance NMR-active isotope of oxygen, 17O. The results from mechanochemically assisted hydrolysis differ from those seen in the traditional ADOR approach: differences that can be attributed to a change in solvent availability.
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Affiliation(s)
- Daniel N Rainer
- School of Chemistry , EaStCHEM , University of St. Andrews , North Haugh, St. Andrews , Fife , KY16 9ST , UK .
| | - Cameron M Rice
- School of Chemistry , EaStCHEM , University of St. Andrews , North Haugh, St. Andrews , Fife , KY16 9ST , UK .
| | - Stewart J Warrender
- School of Chemistry , EaStCHEM , University of St. Andrews , North Haugh, St. Andrews , Fife , KY16 9ST , UK .
| | - Sharon E Ashbrook
- School of Chemistry , EaStCHEM , University of St. Andrews , North Haugh, St. Andrews , Fife , KY16 9ST , UK .
| | - Russell E Morris
- School of Chemistry , EaStCHEM , University of St. Andrews , North Haugh, St. Andrews , Fife , KY16 9ST , UK .
- Department of Physical and Macromolecular Chemistry , Faculty of Sciences , Charles University , Hlavova 8 , 128 43 Prague 2 , Czech Republic
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Two-Dimensional Zeolite Materials: Structural and Acidity Properties. MATERIALS 2020; 13:ma13081822. [PMID: 32290625 PMCID: PMC7215918 DOI: 10.3390/ma13081822] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/05/2020] [Accepted: 04/08/2020] [Indexed: 11/17/2022]
Abstract
Zeolites are generally defined as three-dimensional (3D) crystalline microporous aluminosilicates in which silicon (Si4+) and aluminum (Al3+) are coordinated tetrahedrally with oxygen to form large negative lattices and consequent Brønsted acidity. Two-dimensional (2D) zeolite nanosheets with single-unit-cell or near single-unit-cell thickness (~2-3 nm) represent an emerging type of zeolite material. The extremely thin slices of crystals in 2D zeolites produce high external surface areas (up to 50% of total surface area compared to ~2% in micron-sized 3D zeolite) and expose most of their active sites on external surfaces, enabling beneficial effects for the adsorption and reaction performance for processing bulky molecules. This review summarizes the structural properties of 2D layered precursors and 2D zeolite derivatives, as well as the acidity properties of 2D zeolite derivative structures, especially in connection to their 3D conventional zeolite analogues' structural and compositional properties. The timeline of the synthesis and recognition of 2D zeolites, as well as the structure and composition properties of each 2D zeolite, are discussed initially. The qualitative and quantitative measurements on the acid site type, strength, and accessibility of 2D zeolites are then presented. Future research and development directions to advance understanding of 2D zeolite materials are also discussed.
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Yu Y, Zhang D, Wei N, Yang K, Gong H, Jin C, Zhang W, Huang S. Post-modification of desilicated MFI zeolites by phosphorous promoter. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.110768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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25
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Goodarzi F, Thumbayil RP, Enemark‐Rasmussen K, Mielby J, Nguyen TT, Beato P, Joensen F, Kegnæs S. Enhanced Catalytic Performance of Zn‐containing HZSM‐5 upon Selective Desilication in Ethane Dehydroaromatization Process. ChemCatChem 2020. [DOI: 10.1002/cctc.201902123] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Farnoosh Goodarzi
- DTU ChemistryTechnical University of Denmark Kemitorvet 207 2800 Kgs. Lyngby Denmark
| | | | | | - Jerrik Mielby
- DTU ChemistryTechnical University of Denmark Kemitorvet 207 2800 Kgs. Lyngby Denmark
| | - Thoa T.M. Nguyen
- Haldor Topsoe A/S Haldor Topsøes Allé 1 2800 Kgs. Lyngby Denmark
| | - Pablo Beato
- Haldor Topsoe A/S Haldor Topsøes Allé 1 2800 Kgs. Lyngby Denmark
| | - Finn Joensen
- Haldor Topsoe A/S Haldor Topsøes Allé 1 2800 Kgs. Lyngby Denmark
| | - Søren Kegnæs
- DTU ChemistryTechnical University of Denmark Kemitorvet 207 2800 Kgs. Lyngby Denmark
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Mariatti F, Miletto I, Paul G, Marchese L, Tabasso S, Manzoli M, Cravotto G, Gianotti E. A smart use of biomass derivatives to template an ad hoc hierarchical SAPO-5 acid catalyst. RSC Adv 2020; 10:38578-38582. [PMID: 35517570 PMCID: PMC9057375 DOI: 10.1039/d0ra06353c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 10/01/2020] [Indexed: 11/21/2022] Open
Abstract
A smart design of hierarchical SAPO-5 acid catalyst using biomass derived monosaccharides as sustainable and low-cost mesoporogens has been developed. The hierarchical SAPO-5 was characterized by several physico-chemical techniques to elucidate structure–properties relationships and was tested as a catalyst in the MW-assisted glucose transformation in 5-HMF using γ-valerolactone (GVL) as green solvent. Hierarchical SAPO-5 catalyst was synthesised using biomass-derived sugars as sustainable mesoporogens and tested in the conversion of glucose into 5-(hydroxymethyl)furfural.![]()
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Affiliation(s)
- Francesco Mariatti
- Department of Drug Science and Technology
- Università degli Studi di Torino
- 10125 Torino
- Italy
| | - Ivana Miletto
- Department of Science and Technological Innovation
- Università del Piemonte Orientale
- 15121 Alessandria
- Italy
| | - Geo Paul
- Department of Science and Technological Innovation
- Università del Piemonte Orientale
- 15121 Alessandria
- Italy
| | - Leonardo Marchese
- Department of Science and Technological Innovation
- Università del Piemonte Orientale
- 15121 Alessandria
- Italy
| | - Silvia Tabasso
- Department of Chemistry
- Università degli Studi di Torino
- 10125 Torino
- Italy
| | - Maela Manzoli
- Department of Drug Science and Technology
- Università degli Studi di Torino
- 10125 Torino
- Italy
| | - Giancarlo Cravotto
- Department of Drug Science and Technology
- Università degli Studi di Torino
- 10125 Torino
- Italy
| | - Enrica Gianotti
- Department of Science and Technological Innovation
- Università del Piemonte Orientale
- 15121 Alessandria
- Italy
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Bailleul S, Yarulina I, Hoffman AEJ, Dokania A, Abou-Hamad E, Chowdhury AD, Pieters G, Hajek J, De Wispelaere K, Waroquier M, Gascon J, Van Speybroeck V. A Supramolecular View on the Cooperative Role of Brønsted and Lewis Acid Sites in Zeolites for Methanol Conversion. J Am Chem Soc 2019; 141:14823-14842. [PMID: 31464134 PMCID: PMC6753656 DOI: 10.1021/jacs.9b07484] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A systematic molecular level and spectroscopic investigation is presented to show the cooperative role of Brønsted acid and Lewis acid sites in zeolites for the conversion of methanol. Extra-framework alkaline-earth metal containing species and aluminum species decrease the number of Brønsted acid sites, as protonated metal clusters are formed. A combined experimental and theoretical effort shows that postsynthetically modified ZSM-5 zeolites, by incorporation of extra-framework alkaline-earth metals or by demetalation with dealuminating agents, contain both mononuclear [MOH]+ and double protonated binuclear metal clusters [M(μ-OH)2M]2+ (M = Mg, Ca, Sr, Ba, and HOAl). The metal in the extra-framework clusters has a Lewis acid character, which is confirmed experimentally and theoretically by IR spectra of adsorbed pyridine. The strength of the Lewis acid sites (Mg > Ca > Sr > Ba) was characterized by a blue shift of characteristic IR peaks, thus offering a tool to sample Lewis acidity experimentally. The incorporation of extra-framework Lewis acid sites has a substantial influence on the reactivity of propene and benzene methylations. Alkaline-earth Lewis acid sites yield increased benzene methylation barriers and destabilization of typical aromatic intermediates, whereas propene methylation routes are less affected. The effect on the catalytic function is especially induced by the double protonated binuclear species. Overall, the extra-framework metal clusters have a dual effect on the catalytic function. By reducing the number of Brønsted acid sites and suppressing typical catalytic reactions in which aromatics are involved, an optimal propene selectivity and increased lifetime for methanol conversion over zeolites is obtained. The combined experimental and theoretical approach gives a unique insight into the nature of the supramolecular zeolite catalyst for methanol conversion which can be meticulously tuned by subtle interplay of Brønsted and Lewis acid sites.
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Affiliation(s)
- Simon Bailleul
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , B-9052 Zwijnaarde , Belgium
| | - Irina Yarulina
- King Abdullah University of Science and Technology , KAUST Catalysis Center, Advanced Catalytic Materials , Thuwal 23955-6900 , Saudi Arabia
| | - Alexander E J Hoffman
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , B-9052 Zwijnaarde , Belgium
| | - Abhay Dokania
- King Abdullah University of Science and Technology , KAUST Catalysis Center, Advanced Catalytic Materials , Thuwal 23955-6900 , Saudi Arabia
| | - Edy Abou-Hamad
- King Abdullah University of Science and Technology (KAUST) , Core Laboratories , Thuwal , Saudi Arabia
| | - Abhishek Dutta Chowdhury
- King Abdullah University of Science and Technology , KAUST Catalysis Center, Advanced Catalytic Materials , Thuwal 23955-6900 , Saudi Arabia
| | - Giovanni Pieters
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , B-9052 Zwijnaarde , Belgium
| | - Julianna Hajek
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , B-9052 Zwijnaarde , Belgium
| | - Kristof De Wispelaere
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , B-9052 Zwijnaarde , Belgium
| | - Michel Waroquier
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , B-9052 Zwijnaarde , Belgium
| | - Jorge Gascon
- King Abdullah University of Science and Technology , KAUST Catalysis Center, Advanced Catalytic Materials , Thuwal 23955-6900 , Saudi Arabia
| | - Veronique Van Speybroeck
- Center for Molecular Modeling (CMM) , Ghent University , Technologiepark 46 , B-9052 Zwijnaarde , Belgium
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Abstract
Zeolite-based catalysts are versatile catalytic systems for a wide range of laboratory studies and industrial scale processes. The chemical composition, ion exchange, and pore size structure attributes of zeolites are responsible for their extensive catalytic applications. Esterification is one of the most important and routinely processes in diverse fields of organic synthesis. It has a long history in both industrial processes and laboratory work due to its versatility. This review intends to give a detailed insight into the significance of zeolite-based catalysts for ester bond formation
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29
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Lu H, Duan W, Zhao X. Seed-assisted grinding synthesis of SAPO-34 catalyst and its prolonged catalytic lifetime in the conversion of methanol to olefins. REACTION KINETICS MECHANISMS AND CATALYSIS 2019. [DOI: 10.1007/s11144-019-01655-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Liu X, Liu C, Meng C. Oligomerization of Silicic Acids in Neutral Aqueous Solution: A First-Principles Investigation. Int J Mol Sci 2019; 20:ijms20123037. [PMID: 31234409 PMCID: PMC6627465 DOI: 10.3390/ijms20123037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 06/14/2019] [Accepted: 06/16/2019] [Indexed: 02/02/2023] Open
Abstract
Crystallite aluminosilicates are inorganic microporous materials with well-defined pore-size and pore-structures, and have important industrial applications, including gas adsorption and separation, catalysis, etc. Crystallite aluminosilicates are commonly synthesized via hydrothermal processes, where the oligomerization of silicic acids is crucial. The mechanisms for the oligomerization of poly-silicic acids in neutral aqueous solution were systematically investigated by extensive first-principles-based calculations. We showed that oligomerization of poly-silicic acid molecules proceeds through the lateral attacking and simultaneously proton transfer from the approaching molecule for the formation of a 5-coordinated Si species as the transition state, resulting in the ejection of a water molecule from the formed poly-silicic acid. The barriers for this mechanism are in general more plausible than the conventional direct attacking of poly-silicic acid with reaction barriers in the range of 150–160 kJ/mol. The formation of linear or branched poly-silicic acids by intermolecular oligomerization is only slightly more plausible than the formation of cyclic poly-silicic acids via intramolecular oligomerization according to the reaction barriers (124.2–133.0 vs. 130.6–144.9 kJ/mol). The potential contributions of oligomer structures, such as the length of the linear oligomers, ring distortions and neighboring linear branches, etc., to the oligomerization were also investigated but found negligible. According to the small differences among the reaction barriers, we proposed that kinetic selectivity of the poly-silicic acids condensation would be weak in neutral aqueous solution and the formation of zeolite-like structures would be thermodynamics driven.
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Affiliation(s)
- Xin Liu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China.
| | - Cai Liu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China.
| | - Changgong Meng
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, No. 2, Linggong Road, Dalian 116024, China.
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31
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Radnik J, Dang TTH, Gatla S, Raghuwanshi VS, Tatchev D, Hoell A. Identifying the location of Cu ions in nanostructured SAPO-5 molecular sieves and its impact on the redox properties. RSC Adv 2019; 9:6429-6437. [PMID: 35518502 PMCID: PMC9060918 DOI: 10.1039/c8ra10417d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 01/31/2019] [Indexed: 11/21/2022] Open
Abstract
Combining X-ray Absorption Fine Spectroscopy (XAFS) with Anomalous Small-Angle X-ray Scattering (ASAXS) determines the location of Cu2+ ions in silicoaluminophosphate (SAPO-5) frameworks prepared by hydrothermal crystallization or impregnation. As expected, for the hydrothermally prepared sample, incorporation in the SAPO-5 framework was observed. For the first time preferential location of Cu2+ ions at the inner and outer surfaces of the framework is determined. Temperature-Programmed Reduction (TPR) and X-ray Photoelectron Spectroscopy (XPS) investigations demonstrated that such Cu2+ is stable in an argon (Ar) atmosphere up to 550 °C and can only be reduced under a hydrogen atmosphere. In contrast, Cu2+ deposited by impregnation on the pure SAPO-5 framework can be easily reduced to Cu+ in an Ar atmosphere. At lower Cu amounts, mononuclear tetrahedrally coordinated Cu species were formed which are relatively stable in the monovalent form. In contrast, at higher Cu amounts, CuO particles were found which change easily between the mono- and bivalent species.
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Affiliation(s)
- Jörg Radnik
- Federal Institute for Material Research and Testing (BAM) Unter den Eichen 44-46 12203 Berlin Germany
| | - Thi Thuy Hanh Dang
- National Key Laboratory of Petrochemistry and Refinery Technologies, Vietnam Institute of Industrial Chemistry 2 Pham Ngu Lao Hanoi Vietnam
| | - Suresh Gatla
- ESRF-The European Synchrotron 71, Avenue des Martyrs 38000 Grenoble France
| | - Vikram Singh Raghuwanshi
- Humboldt University of Berlin, Institute of Chemistry Brook-Tayler-Str. 2 12489 Berlin Germany.,Helmholtz-Zentrum Berlin für Materialien und Energie Hahn-Meitner Platz 1 114109 Berlin Germany
| | - Dragomir Tatchev
- Institute of Physical Chemistry - Bulgarian Academy of Sciences Akad. G. Bonchev Str. Bl. 11 1113 Sofia Bulgaria
| | - Armin Hoell
- Helmholtz-Zentrum Berlin für Materialien und Energie Hahn-Meitner Platz 1 114109 Berlin Germany
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Konwar M, Chetia M, Sarma D. A Low-Cost, Well-Designed Catalytic System Derived from Household Waste "Egg Shell": Applications in Organic Transformations. Top Curr Chem (Cham) 2019; 377:6. [PMID: 30675643 DOI: 10.1007/s41061-018-0230-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Accepted: 12/29/2018] [Indexed: 01/22/2023]
Abstract
A waste feedstock-derived economical basic alternative catalyst is described in this review. Eggshell is one of the household wastes created in tons of weight daily. Therefore, in order to reduce the environmental pollution-related problems, its use in heterogeneous catalysis can be attributed as a great contribution for the chemical and material science society to carry out several known reactions and for the much-needed energy alternative biodiesel production as low-cost catalytic system. Keeping green chemistry in mind, industrial use of these catalysts may also reduce the use of other traditionally used high-cost chemical catalytic systems.
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Affiliation(s)
- Manashjyoti Konwar
- Department of Chemistry, Dibrugarh University, Dibrugarh, Assam, 786004, India
| | - Mitali Chetia
- Department of Chemistry, Dibrugarh University, Dibrugarh, Assam, 786004, India
| | - Diganta Sarma
- Department of Chemistry, Dibrugarh University, Dibrugarh, Assam, 786004, India.
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Xu D, Abdelrahman O, Ahn SH, Guefrachi Y, Kuznetsov A, Ren L, Hwang S, Khaleel M, Al Hassan S, Liu D, Hong SB, Dauenhauer P, Tsapatsis M. A quantitative study of the structure–activity relationship in hierarchical zeolites using liquid‐phase reactions. AIChE J 2019. [DOI: 10.1002/aic.16503] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Dandan Xu
- Dept. of Chemical Engineering and Materials Science University of Minnesota Minneapolis Minnesota 55414
| | - Omar Abdelrahman
- Dept. of Chemical Engineering and Materials Science University of Minnesota Minneapolis Minnesota 55414
| | - Sang Hyun Ahn
- Division of Environmental Science and Engineering Pohang University of Science and Technology Pohang Korea 37673
| | - Yasmine Guefrachi
- Dept. of Chemical Engineering and Materials Science University of Minnesota Minneapolis Minnesota 55414
| | - Anatoliy Kuznetsov
- Dept. of Chemical Engineering and Materials Science University of Minnesota Minneapolis Minnesota 55414
| | - Limin Ren
- Dept. of Chemical Engineering and Materials Science University of Minnesota Minneapolis Minnesota 55414
| | - Sonjong Hwang
- Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena California 91125
| | - Maryam Khaleel
- Dept. of Chemical Engineering, The Petroleum Institute Khalifa University of Science and Technology Abu Dhabi UAE
| | - Saeed Al Hassan
- Dept. of Chemical Engineering, The Petroleum Institute Khalifa University of Science and Technology Abu Dhabi UAE
| | - Dongxia Liu
- Dept. of Chemical and Biomolecular Engineering University of Maryland College Park Maryland 20740
| | - Suk Bong Hong
- Division of Environmental Science and Engineering Pohang University of Science and Technology Pohang Korea 37673
| | - Paul Dauenhauer
- Dept. of Chemical Engineering and Materials Science University of Minnesota Minneapolis Minnesota 55414
| | - Michael Tsapatsis
- Dept. of Chemical Engineering and Materials Science University of Minnesota Minneapolis Minnesota 55414
- Dept. of Chemical and Biomolecular Engineering Johns Hopkins University Baltimore Maryland 21218
- Institute for NanoBioTechnology Johns Hopkins University Baltimore Maryland 21218
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Marepally BC, Ampelli C, Genovese C, Quadrelli EA, Perathoner S, Centi G. Production of Solar Fuels Using CO2. STUDIES IN SURFACE SCIENCE AND CATALYSIS 2019. [DOI: 10.1016/b978-0-444-64127-4.00001-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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35
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Tabor E, Bernauer M, Wichterlová B, Dedecek J. Enhancement of propene oligomerization and aromatization by proximate protons in zeolites; FTIR study of the reaction pathway in ZSM-5. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00929a] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The enhanced effect of strongly acidic proximate protons (distance 5.0–5.5 Å) in ZSM-5 was presented on complex propene oligomerization up to the aromatization and development of individual carbenium ion intermediates in the zeolite pores.
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Affiliation(s)
- Edyta Tabor
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences
- CZ-182 23 Prague 8
- Czech Republic
| | - Milan Bernauer
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences
- CZ-182 23 Prague 8
- Czech Republic
| | - Blanka Wichterlová
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences
- CZ-182 23 Prague 8
- Czech Republic
| | - Jiri Dedecek
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences
- CZ-182 23 Prague 8
- Czech Republic
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36
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Ötvös SB, Pálinkó I, Fülöp F. Catalytic use of layered materials for fine chemical syntheses. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02156b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present work reviews the catalytic use of layered solid materials for fine chemical syntheses with focus on layered double hydroxides, but including other classes of layered compounds of catalytic relevance.
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Affiliation(s)
- Sándor B. Ötvös
- Institute of Pharmaceutical Chemistry
- University of Szeged
- H-6720 Szeged
- Hungary
- MTA-SZTE Stereochemistry Research Group
| | - István Pálinkó
- Department of Organic Chemistry
- University of Szeged
- H-6720 Szeged
- Hungary
- Material and Solution Structure Research Group
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry
- University of Szeged
- H-6720 Szeged
- Hungary
- MTA-SZTE Stereochemistry Research Group
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37
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Zhang D, Jin C, Zou M, Huang S. Mesopore Engineering for Well‐Defined Mesoporosity in Al‐Rich Aluminosilicate Zeolites. Chemistry 2018; 25:2675-2683. [PMID: 30264413 DOI: 10.1002/chem.201802912] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Indexed: 11/08/2022]
Affiliation(s)
- Dazhi Zhang
- Division of Fossil Energy Conversion Dalian Institute of Chemical Physics, Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
| | - Changzi Jin
- Division of Fossil Energy Conversion Dalian Institute of Chemical Physics, Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
| | - Mingming Zou
- Division of Fossil Energy Conversion Dalian Institute of Chemical Physics, Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
| | - Shengjun Huang
- Division of Fossil Energy Conversion Dalian Institute of Chemical Physics, Chinese Academy of Sciences Zhongshan Road 457 Dalian 116023 China
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38
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Li C, Moliner M, Corma A. Building Zeolites from Precrystallized Units: Nanoscale Architecture. Angew Chem Int Ed Engl 2018; 57:15330-15353. [DOI: 10.1002/anie.201711422] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Chengeng Li
- Instituto de Tecnología QuímicaUniversitat Politècnica de València-Consejo Superior de, Investigaciones Científicas Avenida de los Naranjos s/n 46022 València Spain), E-mail: addresses
| | - Manuel Moliner
- Instituto de Tecnología QuímicaUniversitat Politècnica de València-Consejo Superior de, Investigaciones Científicas Avenida de los Naranjos s/n 46022 València Spain), E-mail: addresses
| | - Avelino Corma
- Instituto de Tecnología QuímicaUniversitat Politècnica de València-Consejo Superior de, Investigaciones Científicas Avenida de los Naranjos s/n 46022 València Spain), E-mail: addresses
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39
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Li C, Moliner M, Corma A. Synthese von Zeolithen aus vorkristallisierten Bausteinen: Architektur im Nanomaßstab. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711422] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chengeng Li
- Instituto de Tecnología QuímicaUniversitat Politècnica de València-Consejo Superior de Investigaciones Científicas Avenida de los Naranjos s/n 46022 València Spanien
| | - Manuel Moliner
- Instituto de Tecnología QuímicaUniversitat Politècnica de València-Consejo Superior de Investigaciones Científicas Avenida de los Naranjos s/n 46022 València Spanien
| | - Avelino Corma
- Instituto de Tecnología QuímicaUniversitat Politècnica de València-Consejo Superior de Investigaciones Científicas Avenida de los Naranjos s/n 46022 València Spanien
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40
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Visualizing pore architecture and molecular transport boundaries in catalyst bodies with fluorescent nanoprobes. Nat Chem 2018; 11:23-31. [PMID: 30397319 DOI: 10.1038/s41557-018-0163-z] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Accepted: 09/24/2018] [Indexed: 11/08/2022]
Abstract
The performances of porous materials are closely related to the accessibility and interconnectivity of their porous domains. Visualizing pore architecture and its role on functionality-for example, mass transport-has been a challenge so far, and traditional bulk and often non-visual pore measurements have to suffice in most cases. Here, we present an integrated, facile fluorescence microscopy approach to visualize the pore accessibility and interconnectivity of industrial-grade catalyst bodies, and link it unequivocally with their catalytic performance. Fluorescent nanoprobes of various sizes were imaged and correlated with the molecular transport of fluorescent molecules formed during a separate catalytic reaction. A direct visual relationship between the pore architecture-which depends on the pore sizes and interconnectivity of the material selected-and molecular transport was established. This approach can be applied to other porous materials, and the insight gained may prove useful in the design of more efficient heterogeneous catalysts.
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41
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Zhang K, Fernandez S, Ostraat ML. Understanding Commonalities and Interplay Between Organotemplate‐Free Zeolite Synthesis, Hierarchical Structure Creation, and Interzeolite Transformation. ChemCatChem 2018. [DOI: 10.1002/cctc.201800612] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ke Zhang
- Aramco Research Center - BostonAramco Services Company 400 Technology Square Cambridge MA 02139 United States
| | - Sergio Fernandez
- Aramco Research Center - BostonAramco Services Company 400 Technology Square Cambridge MA 02139 United States
| | - Michele L. Ostraat
- Aramco Research Center - BostonAramco Services Company 400 Technology Square Cambridge MA 02139 United States
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42
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Wittwer P, Stelzer A, Braun T. Reactivity of Cp*Al towards Silanols: Formation and Hydrolysis of Alumosiloxanes. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800564] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Philipp Wittwer
- Department of Chemistry Humboldt‐Universität zu Berlin Brook‐Taylor‐Straße 2 12489 Berlin Germany
| | - Adrian Stelzer
- Department of Chemistry Humboldt‐Universität zu Berlin Brook‐Taylor‐Straße 2 12489 Berlin Germany
| | - Thomas Braun
- Department of Chemistry Humboldt‐Universität zu Berlin Brook‐Taylor‐Straße 2 12489 Berlin Germany
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43
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Cheng X, Zhao H, Huang W, Chen J, Wang S, Dong J, Deng Y. Rational Design of Yolk-Shell CuO/Silicalite-1@mSiO 2 Composites for a High-Performance Nonenzymatic Glucose Biosensor. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:7663-7672. [PMID: 29871483 DOI: 10.1021/acs.langmuir.8b01051] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this study, an interface coassembly strategy is employed to rationally synthesize a yolk-shell CuO/silicalite-1@void@mSiO2 composite consisting of silicalite-1 supported CuO nanoparticles confined in the hollow space of mesoporous silica, and the obtained composite materials were used as a novel nonenzymatic biosensor for highly sensitive and selective detecting glucose with excellent anti-interference ability. The synthesis of CuO/silicalite-1@mSiO2 includes four steps: coating silicalite-1 particles with resorcinol-formaldehyde polymer (RF), immobilization of copper species, interface deposition of a mesoporous silica layer, and final calcination in air to decompose RF and form CuO nanoparticles. The unique hierarchical porous structure with mesopores and micropores is beneficial to selectively enrich glucose for fast oxidation into gluconic acid. Besides, the mesopores in the silica shell can effectively inhibit the large interfering substances or biomacromolecules diffusing into the void as well as the loss of CuO nanoparticles. The hollow chamber inside serves as a nanoreactor for glucose oxidation catalyzed by the active CuO nanoparticles, which are spatially accessible for glucose molecules. The nonenzymatic glucose biosensors based on CuO/silicalite-1@mSiO2 materials show excellent electrocatalytic sensing performance with a wide linear range (5-500 μM), high sensitivity (5.5 μA·mM-1·cm-2), low detection limit (0.17 μM), and high selectivity against interfering species. Furthermore, the unique sensors even display a good capability in the determination of glucose in real blood serum samples.
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Affiliation(s)
- Xiaowei Cheng
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) , Fudan University , Shanghai 200433 , China
| | - Haochen Zhao
- College of Science , University of Shanghai for Science and Technology , Shanghai 200093 , China
| | - Wenfeng Huang
- School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , China
| | - Jinyang Chen
- School of Environmental and Chemical Engineering , Shanghai University , Shanghai 200444 , China
| | - Shixia Wang
- College of Science , University of Shanghai for Science and Technology , Shanghai 200093 , China
| | - Junping Dong
- Department of Chemistry, College of Science , Shanghai University , Shanghai 200444 , China
| | - Yonghui Deng
- Department of Chemistry, State Key Laboratory of Molecular Engineering of Polymers, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) , Fudan University , Shanghai 200433 , China
- State Key Lab of Transducer Technology, Shanghai Institute of Microsystem and Information Technology , Chinese Academy of Sciences , Shanghai 200050 , China
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44
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Castro-Muñoz R, Fíla V. Progress on Incorporating Zeolites in Matrimid ®5218 Mixed Matrix Membranes towards Gas Separation. MEMBRANES 2018; 8:membranes8020030. [PMID: 29904036 PMCID: PMC6027129 DOI: 10.3390/membranes8020030] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 06/11/2018] [Accepted: 06/13/2018] [Indexed: 11/16/2022]
Abstract
Membranes, as perm-selective barriers, have been widely applied for gas separation applications. Since some time ago, pure polymers have been used mainly for the preparation of membranes, considering different kinds of polymers for such preparation. At this point, polyimides (e.g., Matrimid®5218) are probably one of the most considered polymers for this purpose. However, the limitation on the performance relationship of polymeric membranes has promoted their enhancement through the incorporation of different inorganic materials (e.g., zeolites) into their matrix. Therefore, the aim of this work is to provide an overview about the progress of zeolite embedding in Matrimid®5218, aiming at the preparation of mixed matrix membranes for gas separation. Particular attention is paid to the relevant experimental results and current findings. Finally, we describe the prospects and future trends in the field.
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Affiliation(s)
- Roberto Castro-Muñoz
- Department of Inorganic Technology, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic.
| | - Vlastimil Fíla
- Department of Inorganic Technology, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Czech Republic.
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45
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Morphology and Catalytic Properties of Hierarchical Zeolites with MOR, BEA, MFI, and MTW Topology. THEOR EXP CHEM+ 2018. [DOI: 10.1007/s11237-018-9557-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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46
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Masoumifard N, Guillet-Nicolas R, Kleitz F. Synthesis of Engineered Zeolitic Materials: From Classical Zeolites to Hierarchical Core-Shell Materials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1704439. [PMID: 29479756 DOI: 10.1002/adma.201704439] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 10/08/2017] [Indexed: 06/08/2023]
Abstract
The term "engineered zeolitic materials" refers to a class of materials with a rationally designed pore system and active-sites distribution. They are primarily made of crystalline microporous zeolites as the main building blocks, which can be accompanied by other secondary components to form composite materials. These materials are of potential importance in many industrial fields like catalysis or selective adsorption. Herein, critical aspects related to the synthesis and modification of such materials are discussed. The first section provides a short introduction on classical zeolite structures and properties, and their conventional synthesis methods. Then, the motivating rationale behind the growing demand for structural alteration of these zeolitic materials is discussed, with an emphasis on the ongoing struggles regarding mass-transfer issues. The state-of-the-art techniques that are currently available for overcoming these hurdles are reviewed. Following this, the focus is set on core-shell composites as one of the promising pathways toward the creation of a new generation of highly versatile and efficient engineered zeolitic substances. The synthesis approaches developed thus far to make zeolitic core-shell materials and their analogues, yolk-shell, and hollow materials, are also examined and summarized. Finally, the last section concisely reviews the performance of novel core-shell, yolk-shell, and hollow zeolitic materials for some important industrial applications.
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Affiliation(s)
- Nima Masoumifard
- Department of Chemistry, Université Laval, Quebec City, Quebec, G1V 0A6, Canada
| | - Rémy Guillet-Nicolas
- Department of Inorganic Chemistry-Functional Materials, Faculty of Chemistry, University of Vienna, Währinger Straße 42, Vienna, 1090, Austria
| | - Freddy Kleitz
- Department of Chemistry, Université Laval, Quebec City, Quebec, G1V 0A6, Canada
- Department of Inorganic Chemistry-Functional Materials, Faculty of Chemistry, University of Vienna, Währinger Straße 42, Vienna, 1090, Austria
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47
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General Aspects on Structure and Reactivity of Framework and Extra-framework Metals in Zeolite Materials. STRUCTURE AND BONDING 2018. [DOI: 10.1007/430_2017_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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48
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49
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Pagis C, Morgado Prates AR, Bats N, Tuel A, Farrusseng D. High-silica hollow Y zeolite by selective desilication of dealuminated NaY crystals in the presence of protective Al species. CrystEngComm 2018. [DOI: 10.1039/c8ce00121a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
High-silica hollow faujasite crystals were obtained by dealumination of standard NaY crystals followed by their selective desilication in the presence of protective aluminum species.
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Affiliation(s)
- Céline Pagis
- Université de Lyon
- Université Claude Bernard Lyon 1
- CNRS
- IRCELYON - UMR 5256
- 69626 Villeurbanne Cedex
| | - Ana Rita Morgado Prates
- Université de Lyon
- Université Claude Bernard Lyon 1
- CNRS
- IRCELYON - UMR 5256
- 69626 Villeurbanne Cedex
| | - Nicolas Bats
- IFP Energies Nouvelles
- Etablissement de Lyon
- 69360 Solaize
- France
| | - Alain Tuel
- Université de Lyon
- Université Claude Bernard Lyon 1
- CNRS
- IRCELYON - UMR 5256
- 69626 Villeurbanne Cedex
| | - David Farrusseng
- Université de Lyon
- Université Claude Bernard Lyon 1
- CNRS
- IRCELYON - UMR 5256
- 69626 Villeurbanne Cedex
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50
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Ogawa T, Iyoki K, Fukushima T, Kajikawa Y. Landscape of Research Areas for Zeolites and Metal-Organic Frameworks Using Computational Classification Based on Citation Networks. MATERIALS 2017; 10:ma10121428. [PMID: 29240708 PMCID: PMC5744363 DOI: 10.3390/ma10121428] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 12/07/2017] [Accepted: 12/10/2017] [Indexed: 11/16/2022]
Abstract
The field of porous materials is widely spreading nowadays, and researchers need to read tremendous numbers of papers to obtain a "bird's eye" view of a given research area. However, it is difficult for researchers to obtain an objective database based on statistical data without any relation to subjective knowledge related to individual research interests. Here, citation network analysis was applied for a comparative analysis of the research areas for zeolites and metal-organic frameworks as examples for porous materials. The statistical and objective data contributed to the analysis of: (1) the computational screening of research areas; (2) classification of research stages to a certain domain; (3) "well-cited" research areas; and (4) research area preferences of specific countries. Moreover, we proposed a methodology to assist researchers to gain potential research ideas by reviewing related research areas, which is based on the detection of unfocused ideas in one area but focused in the other area by a bibliometric approach.
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Affiliation(s)
- Takaya Ogawa
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.
| | - Kenta Iyoki
- Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.
| | - Tomohiro Fukushima
- Department of Chemistry, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA.
| | - Yuya Kajikawa
- School of Environment and Society, Tokyo Institute of Technology, 3-3-6 Shibaura, Minato-ku, Tokyo 108-0023, Japan.
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