1
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Vallace A, Shah DR, Burentugs E, Tucker AJ, Cavanagh AE, Jones CW. Synthesis Route to Single-Walled Zeolite Nanotubes Enabled by Tetrabutylammonium Hydroxide. ACS MATERIALS AU 2024; 4:523-536. [PMID: 39280811 PMCID: PMC11393933 DOI: 10.1021/acsmaterialsau.4c00030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2024] [Revised: 07/03/2024] [Accepted: 07/03/2024] [Indexed: 09/18/2024]
Abstract
Single-walled zeolite nanotubes (ZNT) were recently synthesized in a narrow compositional window. ZNT structural features-thin zeolitic walls and large mesopores-can allow for easy access of small molecules to zeolite micropores, but they also impart processing limitations for these materials, such as challenges with conventional aqueous ion-exchange conditions. Conventional solid- and liquid-phase ion exchange of calcined NaOH-derived ZNT (NaH-ZNT) results in structural degradation to either 2D sheet-like phases, 3D nanocrystals, or amorphous phases, motivating different direct synthesis routes and unconventional ion-exchange procedures of uncalcined ZNT precursors. Here, a modified synthesis route for ZNT synthesis is introduced that facilitates facile ion exchange as well as incorporation of additional non-Al heteroatoms in the zeolite framework. Tetrabutylammonium hydroxide (TBAOH) is used as a hydroxide source and co-OSDA, enabling synthesis of new compositions of ZNT, otherwise unachievable by post-modification of previously reported NaH-ZNT. By varying the gel composition, synthesis temperature, crystallization time, hydroxide source, silicon source, and aluminum source, productive conditions for the new TBAOH synthesis are developed, leading to increased strong acid site density in the ZNT. The collected results demonstrate the sensitivity of the ZNT synthesis to many key parameters and show that the ZNT forms only when Si/(Al + T) ∼ 30 in these synthesis gels and with specific Si and Al sources, and always in the presence of trace Na+. Catalytic testing, via the tandem CO2 hydrogenation to methanol and methanol to aromatics reaction, shows that ZNTs provide adequate catalytic activity (acidity), relative to their conventional 3D counterparts in converting methanol to aromatic compounds.
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Affiliation(s)
- Anthony Vallace
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Dhrumil R Shah
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Enerelt Burentugs
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Atticus J Tucker
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Ashley E Cavanagh
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332, United States
| | - Christopher W Jones
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, Georgia 30332, United States
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2
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Ao D, Yang Z, Chen A, Sun Y, Ye M, Tian L, Cen X, Xie Z, Du J, Qiao Z, Cheetham AK, Hou J, Zhong C. Effective C 4 Separation by Zeolite Metal-Organic Framework Composite Membranes. Angew Chem Int Ed Engl 2024; 63:e202401118. [PMID: 38433100 DOI: 10.1002/anie.202401118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/27/2024] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
Inorganic zeolites have excellent molecular sieving properties, but they are difficult to process into macroscopic structures. In this work, we use metal-organic framework (MOF) glass as substrates to engineer the interface with inorganic zeolites, and then assemble the discrete crystalline zeolite powders into monolithic structures. The zeolites are well dispersed and stabilized within the MOF glass matrix, and the monolith has satisfactory mechanical stabilities for membrane applications. We demonstrate the effective separation performance of the membrane for 1,3-butadiene (C4H6) from other C4 hydrocarbons, which is a crucial and challenging separation in the chemical industry. The membrane achieves a high permeance of C4H6 (693.00±21.83 GPU) and a high selectivity over n-butene, n-butane, isobutene, and isobutane (9.72, 9.94, 10.31, and 11.94, respectively). This strategy opens up new possibilities for developing advanced membrane materials for difficult hydrocarbon separations.
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Affiliation(s)
- De Ao
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China
| | - Zibo Yang
- Hebei Key Laboratory of Heterocyclic Compounds, Handan University, Handan, 056005, China
| | - Aibing Chen
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Yuxiu Sun
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China
| | - Mao Ye
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China
| | - Lei Tian
- Institute of Seawater Desalination and Multipurpose Utilization MNR (Tianjin), Tianjin, 300192, China
| | - Xixi Cen
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China
| | - Zixi Xie
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Juan Du
- College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Zhihua Qiao
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China
| | - Anthony K Cheetham
- Materials Research Laboratory, University of California, Santa Barbara, California, 93106, USA
| | - Jingwei Hou
- School of Chemical Engineering, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Chongli Zhong
- State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China
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3
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Mallette AJ, Espindola G, Varghese N, Rimer JD. Highly efficient synthesis of zeolite chabazite using cooperative hydration-mismatched inorganic structure-directing agents. Chem Sci 2024; 15:573-583. [PMID: 38179517 PMCID: PMC10763616 DOI: 10.1039/d3sc05625b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 11/26/2023] [Indexed: 01/06/2024] Open
Abstract
Chabazite (CHA type) zeolite is notoriously difficult to synthesize in the absence of organic structure-directing agents owing to long synthesis times and/or impurity formation. The ability to tailor organic-free syntheses of zeolites is additionally challenging due to the lack of molecular level understanding of zeolite nucleation and growth pathways, particularly the role of inorganic cations. In this study, we reveal that zeolite CHA can be synthesized using six different combinations of inorganic cations, including the first reported seed- and organic-free synthesis without the presence of potassium. We show that lithium, when present in small quantities, is an effective accelerant of CHA crystallization; and that ion pairings can markedly reduce synthesis times and temperatures, while expanding the design space of zeolite CHA formation in comparison to conventional methods utilizing potassium as the sole structure-directing agent. Herein, we posit the effects of cation pairings on zeolite CHA crystallization are related to their hydrated ionic radii. We also emphasize the broader implications for considering the solvated structure and cooperative role of inorganic cations in zeolite synthesis within the context of the reported findings for chabazite.
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Affiliation(s)
- Adam J Mallette
- Department of Chemical and Biomolecular Engineering, University of Houston 4226 Martin Luther King Boulevard Houston TX 77204 USA
| | - Gabriel Espindola
- Department of Chemical and Biomolecular Engineering, University of Houston 4226 Martin Luther King Boulevard Houston TX 77204 USA
| | - Nathan Varghese
- Department of Chemical and Biomolecular Engineering, University of Houston 4226 Martin Luther King Boulevard Houston TX 77204 USA
| | - Jeffrey D Rimer
- Department of Chemical and Biomolecular Engineering, University of Houston 4226 Martin Luther King Boulevard Houston TX 77204 USA
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Ghojavand S, Dib E, Mintova S. Flexibility in zeolites: origin, limits, and evaluation. Chem Sci 2023; 14:12430-12446. [PMID: 38020361 PMCID: PMC10646982 DOI: 10.1039/d3sc03934j] [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: 07/29/2023] [Accepted: 10/12/2023] [Indexed: 12/01/2023] Open
Abstract
Numerous pieces of evidence in the literature suggest that zeolitic materials exhibit significant intrinsic flexibility as a consequence of the spring-like behavior of Si-O and Al-O bonds and the distortion ability of Si-O-Si and Al-O-Si angles. Understanding the origin of flexibility and how it may be tuned to afford high adsorption selectivity in zeolites is a big challenge. Zeolite flexibility may be triggered by changes in temperature, pressure, or chemical composition of the framework and extra-framework compounds, as well as by the presence of guest molecules. Therefore, zeolite flexibility can be classified into three categories: (i) temperature and pressure-induced flexibility; (ii) guest-induced flexibility; and (iii) compositionally-induced flexibility. An outlook on zeolite flexibility and the challenges met during the precise experimental evaluations of zeolites will be discussed. Overcoming these challenges will provide an important tool for designing novel selective adsorbents.
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Affiliation(s)
- Sajjad Ghojavand
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS) 14000 Caen France
| | - Eddy Dib
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS) 14000 Caen France
| | - Svetlana Mintova
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS) 14000 Caen France
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Daouli A, Rey J, Lahrar EH, Valtchev V, Badawi M, Guillet-Nicolas R. Ab Initio Screening of Divalent Cations for CH 4, CO 2, H 2, and N 2 Separations in Chabazite Zeolite. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15962-15973. [PMID: 37929920 DOI: 10.1021/acs.langmuir.3c01882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
The efficient separation and adsorption of critical gases are, more than ever, a major focus point in important energy processes, such as CH4 enrichment of biogas or natural gas, CO2 separation and capture, and H2 purification and storage. Thanks to its physicochemical properties, cation-exchanged chabazite is a potent zeolite for such applications. Previous computational screening investigations have mostly examined chabazites exchanged with monovalent cations. Therefore, in this contribution, periodic density functional theory (DFT) calculations in combination with dispersion corrections have been used for a systematic screening of divalent cation exchanged chabazite zeolites. The work focuses on cheap and readily available divalent cations, Ca(II), Mg(II), and Zn(II), Fe(II), Sn(II), and Cu(II) and investigates the effect of the cation nature and location within the framework on the adsorption selectivity of chabazite for specific gas separations, namely, CO2/CH4, N2/CH4, and N2/H2. All the cationic adsorption sites were explored to describe the diversity of sites in a typical experimental chabazite with a Si/Al ratio close to 2 or 3. The results revealed that Mg-CHA is the most promising cation for the selective adsorption of CO2. These predictions were further supported by ab initio molecular dynamics simulations performed at 300 K, which demonstrated that the presence of CH4 has a negligible impact on the adsorption of CO2 on Mg-CHA. Ca(II) was found to be the most favorable cation for the selective adsorption of H2 and CO2. Finally, none of the investigated cations were suitable for the preferential capture of N2 and H2 in the purification of CH4 rich mixtures. These findings provide valuable insights into the factors influencing the adsorption behavior of N2, H2, CH4, and CO2 and highlight the crucial role played by theoretical calculations and simulations for the optimal design of efficient adsorbents.
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Affiliation(s)
- Ayoub Daouli
- Laboratoire de Physique et Chimie Théoriques, CNRS, Université de Lorraine, 54506 Vandœuvre-lès-Nancy, France
| | - Jérôme Rey
- Laboratoire de Physique et Chimie Théoriques, CNRS, Université de Lorraine, 54506 Vandœuvre-lès-Nancy, France
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 14000Caen, France
| | - El Hassane Lahrar
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 14000Caen, France
| | - Valentin Valtchev
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 14000Caen, France
| | - Michael Badawi
- Laboratoire de Physique et Chimie Théoriques, CNRS, Université de Lorraine, 54506 Vandœuvre-lès-Nancy, France
| | - Rémy Guillet-Nicolas
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 14000Caen, France
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Li H, Dilipkumar A, Abubakar S, Zhao D. Covalent organic frameworks for CO 2 capture: from laboratory curiosity to industry implementation. Chem Soc Rev 2023; 52:6294-6329. [PMID: 37591809 DOI: 10.1039/d2cs00465h] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
CO2 concentration in the atmosphere has increased by about 40% since the 1960s. Among various technologies available for carbon capture, adsorption and membrane processes have been receiving tremendous attention due to their potential to capture CO2 at low costs. The kernel for such processes is the sorbent and membrane materials, and tremendous progress has been made in designing and fabricating novel porous materials for carbon capture. Covalent organic frameworks (COFs), a class of porous crystalline materials, are promising sorbents for CO2 capture due to their high surface area, low density, controllable pore size and structure, and preferable stabilities. However, the absence of synergistic developments between materials and engineering processes hinders achieving the qualitative leap for net-zero emissions. Considering the lack of a timely review on the combination of state-of-the-art COFs and engineering processes, in this Tutorial Review, we emphasize the developments of COFs for meeting the challenges of carbon capture and disclose the strategies of fabricating COFs for realizing industrial implementation. Moreover, this review presents a detailed and basic description of the engineering processes and industrial status of carbon capture. It highlights the importance of machine learning in integrating simulations of molecular and engineering levels. We aim to stimulate both academia and industry communities for joined efforts in bringing COFs to practical carbon capture.
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Affiliation(s)
- He Li
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
| | - Akhil Dilipkumar
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
| | - Saifudin Abubakar
- ExxonMobil Asia Pacific Pte. Ltd., 1 HarbourFront Place, #06-00 HarbourFront Tower 1, 098633, Singapore
| | - Dan Zhao
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
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7
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Ghojavand S, Dib E, Rey J, Daouli A, Clatworthy EB, Bazin P, Ruaux V, Badawi M, Mintova S. Interplay between alkali-metal cations and silanol sites in nanosized CHA zeolite and implications for CO 2 adsorption. Commun Chem 2023; 6:134. [PMID: 37386117 PMCID: PMC10310731 DOI: 10.1038/s42004-023-00918-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 06/01/2023] [Indexed: 07/01/2023] Open
Abstract
Silanols are key players in the application performance of zeolites, yet, their localization and hydrogen bonding strength need more studies. The effects of post-synthetic ion exchange on nanosized chabazite (CHA), focusing on the formation of silanols, were studied. The significant alteration of the silanols of the chabazite nanozeolite upon ion exchange and their effect on the CO2 adsorption capacity was revealed by solid-state nuclear magnetic resonance (NMR), Fourier-transform infrared (FTIR) spectroscopy, and periodic density functional theory (DFT) calculations. Both theoretical and experimental results revealed changing the ratio of extra-framework cations in CHA zeolites changes the population of silanols; decreasing the Cs+/K+ ratio creates more silanols. Upon adsorption of CO2, the distribution and strength of the silanols also changed with increased hydrogen bonding, thus revealing an interaction of silanols with CO2 molecules. To the best of our knowledge, this is the first evidence of the interplay between alkali-metal cations and silanols in nanosized CHA.
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Affiliation(s)
- Sajjad Ghojavand
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14000, Caen, France
| | - Eddy Dib
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14000, Caen, France
| | - Jérôme Rey
- Université de Lorraine, CNRS, Laboratoire de Physique et Chimie Théoriques (LPCT), F-54000, Nancy, France
| | - Ayoub Daouli
- Université de Lorraine, CNRS, Laboratoire de Physique et Chimie Théoriques (LPCT), F-54000, Nancy, France
| | - Edwin B Clatworthy
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14000, Caen, France
| | - Philippe Bazin
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14000, Caen, France
| | - Valérie Ruaux
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14000, Caen, France
| | - Michael Badawi
- Université de Lorraine, CNRS, Laboratoire de Physique et Chimie Théoriques (LPCT), F-54000, Nancy, France
| | - Svetlana Mintova
- Normandie Université, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie (LCS), 14000, Caen, France.
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Abedin Khan N, Kyu Yoo D, Lee S, Kim TW, Kim CU, Hwa Jhung S. Microwave-assisted rapid synthesis of nanosized SSZ-13 zeolites for effective conversion of ethylene to propylene. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.01.028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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9
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Tailoring Zeolite ERI Aperture for Efficient Separation of CO2 from Gas Mixtures. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.123078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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10
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Cao Z, Li G, Di Z, Chen C, Meng L, Wu M, Wang W, Zhuo Z, Kong X, Hong M, Huang Y. From a Metal–Organic Square to a Robust and Regenerable Supramolecular Self‐assembly for Methane Purification. Angew Chem Int Ed Engl 2022; 61:e202210012. [DOI: 10.1002/anie.202210012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Zhong‐Min Cao
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian, 350002 China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institutes Chinese Academy of Sciences Xiamen Fujian, 361021 China
| | - Guo‐Ling Li
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian, 350002 China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institutes Chinese Academy of Sciences Xiamen Fujian, 361021 China
| | - Zheng‐Yi Di
- State Key Laboratory of Structure Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian, 350002 China
| | - Cheng Chen
- State Key Laboratory of Structure Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian, 350002 China
| | - Ling‐Yi Meng
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian, 350002 China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institutes Chinese Academy of Sciences Xiamen Fujian, 361021 China
| | - Mingyan Wu
- State Key Laboratory of Structure Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian, 350002 China
| | - Wei Wang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian, 350002 China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institutes Chinese Academy of Sciences Xiamen Fujian, 361021 China
| | - Zhu Zhuo
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian, 350002 China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institutes Chinese Academy of Sciences Xiamen Fujian, 361021 China
| | - Xiang‐Jian Kong
- State Key Laboratory of Physical Chemistry of Solid Surfaces Xiamen University Xiamen Fujian, 361005 China
| | - Maochun Hong
- State Key Laboratory of Structure Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian, 350002 China
| | - You‐Gui Huang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian, 350002 China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institutes Chinese Academy of Sciences Xiamen Fujian, 361021 China
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11
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Dai S, Yang Y, Yang J, Chen S, Zhu L. Recent Advances in the Seed-Directed Synthesis of Zeolites without Addition of Organic Templates. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2873. [PMID: 36014738 PMCID: PMC9415991 DOI: 10.3390/nano12162873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 06/15/2023]
Abstract
Zeolites have been widely employed in fields of petroleum refining, fine chemicals and environmental protection, but their syntheses are always performed in the presence of organic templates, which have many drawbacks such as high cost and polluted wastes. In recent years, the seed-directed synthesis of zeolites has been paid much attention due to its low-cost and environmentally friendly features. In this review, the seed-directed synthesis of Al-rich zeolites with homonuclear and heteronuclear features, the seed-directed synthesis of Si-rich zeolites assisted with ethanol and the utility of seed-directed synthesis have been summarized. This review could help zeolite researchers understand the recent progress of seed-directed synthesis.
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Affiliation(s)
- Shujie Dai
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Yichang Yang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jinghuai Yang
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China
| | - Shichang Chen
- Key Laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Longfeng Zhu
- College of Biological, Chemical Sciences and Engineering, Jiaxing University, Jiaxing 314001, China
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12
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Gu J, Yuan Y, Zhao T, Liu F, Xu Y, Tao DJ. Ionic-containing hyper-crosslinked polymer: A promising bifunctional material for CO2 capture and conversion. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121971] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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13
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Qu K, Xu J, Dai L, Wang Y, Cao H, Zhang D, Wu Y, Xu W, Huang K, Lian C, Guo X, Jin W, Xu Z. Electrostatic‐Induced Crystal‐Rearrangement of Porous Organic Cage Membrane for CO
2
Capture. Angew Chem Int Ed Engl 2022; 61:e202205481. [DOI: 10.1002/anie.202205481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Kai Qu
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
| | - Jipeng Xu
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
| | - Liheng Dai
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
| | - Yixing Wang
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
| | - Hongyan Cao
- State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech University No. 30 Puzhu South Road Nanjing 211816 China
| | - Dezhu Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech University No. 30 Puzhu South Road Nanjing 211816 China
| | - Yulin Wu
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
| | - Weiyi Xu
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
| | - Kang Huang
- State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech University No. 30 Puzhu South Road Nanjing 211816 China
| | - Cheng Lian
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
| | - Xuhong Guo
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
| | - Wanqin Jin
- State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech University No. 30 Puzhu South Road Nanjing 211816 China
| | - Zhi Xu
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
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14
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Wennmacher JTC, Mahmoudi S, Rzepka P, Sik Lee S, Gruene T, Paunović V, van Bokhoven JA. Electron Diffraction Enables the Mapping of Coke in ZSM-5 Micropores Formed during Methanol-to-Hydrocarbons Conversion. Angew Chem Int Ed Engl 2022; 61:e202205413. [PMID: 35513343 PMCID: PMC9401574 DOI: 10.1002/anie.202205413] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Indexed: 12/29/2022]
Abstract
Unveiling the coke formation in zeolites is an essential prerequisite for tackling the deactivation of these catalysts in the transformations of hydrocarbons. Herein, we present the direct mapping of coke in the micropores of ZSM-5 catalysts used in methanol-to-hydrocarbons conversion by single-crystal electron diffraction analysis. The latter technique revealed a polycyclic aromatic structure along the straight channel, wherein the high-quality data permit refinement of its occupancy to about 40 %. These findings were exploited to analyze the evolution of micropore coke during the reaction. Herein, coke-associated signals, which correlate with the activity loss, indicate that the nucleation of coke commences in the intersections of sinusoidal and straight channels, while the formation of coke in the straight pores occurs in the late stages of deactivation. The findings uncover an attractive method for analyzing coke deposition in the micropore domain.
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Affiliation(s)
- Julian T. C. Wennmacher
- Institute for Chemical and BioengineeringDepartment of Chemistry and Applied BiosciencesETH ZurichVladimir-Prelog-Weg 18093ZurichSwitzerland
- Laboratory for Catalysis and Sustainable ChemistryPaul Scherrer InstituteForschungsstrasse 1115232Villigen PSISwitzerland
| | - Soheil Mahmoudi
- Institute of Inorganic ChemistryFaculty of ChemistryUniversity of ViennaWähringer Strasse 421090ViennaAustria
- Vienna Doctoral School in Chemistry (DoSChem)University of ViennaWähringer Strasse 421090ViennaAustria
| | - Przemyslaw Rzepka
- Institute for Chemical and BioengineeringDepartment of Chemistry and Applied BiosciencesETH ZurichVladimir-Prelog-Weg 18093ZurichSwitzerland
- Laboratory for Catalysis and Sustainable ChemistryPaul Scherrer InstituteForschungsstrasse 1115232Villigen PSISwitzerland
| | - Sung Sik Lee
- Scientific Center of Optical and Electron MicroscopyETH ZurichOtto-Stern-Weg 38093ZurichSwitzerland
| | - Tim Gruene
- Institute of Inorganic ChemistryFaculty of ChemistryUniversity of ViennaWähringer Strasse 421090ViennaAustria
| | - Vladimir Paunović
- Institute for Chemical and BioengineeringDepartment of Chemistry and Applied BiosciencesETH ZurichVladimir-Prelog-Weg 18093ZurichSwitzerland
- Laboratory for Catalysis and Sustainable ChemistryPaul Scherrer InstituteForschungsstrasse 1115232Villigen PSISwitzerland
| | - Jeroen A. van Bokhoven
- Institute for Chemical and BioengineeringDepartment of Chemistry and Applied BiosciencesETH ZurichVladimir-Prelog-Weg 18093ZurichSwitzerland
- Laboratory for Catalysis and Sustainable ChemistryPaul Scherrer InstituteForschungsstrasse 1115232Villigen PSISwitzerland
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15
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Qu K, Xu J, Dai L, Wang Y, Cao H, Zhang D, Wu Y, Xu W, Huang K, Lian C, Guo X, Jin W, Xu Z. Electrostatic‐Induced Crystal‐Rearrangement of Porous Organic Cage Membrane for CO
2
Capture. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kai Qu
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
| | - Jipeng Xu
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
| | - Liheng Dai
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
| | - Yixing Wang
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
| | - Hongyan Cao
- State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech University No. 30 Puzhu South Road Nanjing 211816 China
| | - Dezhu Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech University No. 30 Puzhu South Road Nanjing 211816 China
| | - Yulin Wu
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
| | - Weiyi Xu
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
| | - Kang Huang
- State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech University No. 30 Puzhu South Road Nanjing 211816 China
| | - Cheng Lian
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
| | - Xuhong Guo
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
| | - Wanqin Jin
- State Key Laboratory of Materials-Oriented Chemical Engineering Nanjing Tech University No. 30 Puzhu South Road Nanjing 211816 China
| | - Zhi Xu
- State Key Laboratory of Chemical Engineering East China University of Science and Technology No.130 Meilong Road Shanghai 200237 China
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16
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Electron Diffraction Enables the Mapping of Coke in ZSM‐5 Micropores Formed during Methanol‐to‐Hydrocarbons Conversion. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Irfan A, Wang T, Wang A, Jing X, Yang L, Zhu G. Pyrene-based covalent organic framework for selective enrichment of hydrophobic peptides with simultaneous proteins exclusion. Anal Chim Acta 2022; 1209:339876. [DOI: 10.1016/j.aca.2022.339876] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/20/2022] [Accepted: 04/22/2022] [Indexed: 01/13/2023]
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18
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Abstract
Scanning transmission electron microscopy shows the adaptive pores of a zeolite.
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Affiliation(s)
- Tom Willhammar
- Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Xiaodong Zou
- Department of Materials and Environmental Chemistry, Stockholm University, SE-106 91 Stockholm, Sweden
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19
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Fu D, Park Y, Davis ME. Zinc Containing Small‐Pore Zeolites for Capture of Low Concentration Carbon Dioxide. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112916] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Donglong Fu
- Chemical Engineering California Institute of Technology 1200 E. California Blvd. Pasadena CA 91125 USA
| | - Youngkyu Park
- Chemical Engineering California Institute of Technology 1200 E. California Blvd. Pasadena CA 91125 USA
| | - Mark E. Davis
- Chemical Engineering California Institute of Technology 1200 E. California Blvd. Pasadena CA 91125 USA
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20
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Wang B, Lin Y. Absolute configuration determination of SMTP-7 via microcrystal electron diffraction (MicroED). Chem Commun (Camb) 2022; 58:13071-13074. [DOI: 10.1039/d2cc05218k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The absolute configuration of a clinically important drug candidate, SMTP-7, with only micron-sized powders available, is directly obtained via microcrystal electron diffraction (MicroED) analysis.
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Affiliation(s)
- Bo Wang
- Small Molecule Drug Product Development, Biogen, 115 Broadway, Cambridge, MA 02142, USA
| | - Yiqing Lin
- Small Molecule Drug Product Development, Biogen, 115 Broadway, Cambridge, MA 02142, USA
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21
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Taherizadeh A, Harpf A, Simon A, Choi J, Richter H, Voigt I, Stelter M. Thermochemical study of the structural stability of low-silicate CHA zeolite crystals. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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22
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Lv N, Sun C, Wang X, Wang C, Yue Y, Bao X. Understanding the superior NH3-SCR activity on CHA zeolite synthesized via template-free interzeolite transformation. Inorg Chem Front 2022. [DOI: 10.1039/d1qi01414e] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesizing CHA-type zeolite via template-free interzeolite transformation has been considered as a green manner, but the resultant zeolite exhibits low activity in selective catalytic reduction of NOx by ammonia (NH3-SCR)....
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23
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Fu D, Park Y, Davis ME. Zinc Containing Small-Pore Zeolites for Capture of Low Concentration Carbon Dioxide. Angew Chem Int Ed Engl 2021; 61:e202112916. [PMID: 34799943 DOI: 10.1002/anie.202112916] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Indexed: 02/02/2023]
Abstract
The capture of low concentration CO2 presents numerous challenges. Here, we report that zinc containing chabazite (CHA) zeolites can realize high capacity, fast adsorption kinetics, and low desorption energy when capturing ca. 400 ppm CO2 . Control of the state and location of the zinc ions in the CHA cage is critical to the performance. Zn2+ loaded onto paired anionic sites in the six-membered rings (6MRs) in the CHA cage are the primary sites to adsorb ca. 0.51 mmol CO2 /g-zeolite with Si/Al=ca. 7, a 17-fold increase compared to the parent H-form. The capacity is increased further to ca. 0.67 mmol CO2 /g-zeolite with Si/Al=ca. 2 due to more paired sites for zinc exchange. Zeolites with double six-membered rings (D6MRs) that orient 6MRs into the cages give enhanced uptakes for CO2 adsorption with zinc exchange. The results reveal that zinc exchanged CHA and several other small pore, cage containing zeolites merit further investigation for the capture of low concentration CO2 .
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Affiliation(s)
- Donglong Fu
- Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., Pasadena, CA, 91125, USA
| | - Youngkyu Park
- Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., Pasadena, CA, 91125, USA
| | - Mark E Davis
- Chemical Engineering, California Institute of Technology, 1200 E. California Blvd., Pasadena, CA, 91125, USA
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24
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Gruene T, Mugnaioli E. 3D Electron Diffraction for Chemical Analysis: Instrumentation Developments and Innovative Applications. Chem Rev 2021; 121:11823-11834. [PMID: 34533919 PMCID: PMC8517952 DOI: 10.1021/acs.chemrev.1c00207] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Indexed: 01/26/2023]
Abstract
In the past few years, many exciting papers reported results based on crystal structure determination by electron diffraction. The aim of this review is to provide general and practical information to structural chemists interested in stepping into this emerging field. We discuss technical characteristics of electron microscopes for research units that would like to acquire their own instrumentation, as well as those practical aspects that appear different between X-ray and electron crystallography. We also include a discussion about applications where electron crystallography provides information that is different, and possibly complementary, with respect to what is available from X-ray crystallography.
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Affiliation(s)
- Tim Gruene
- University
of Vienna, Faculty of Chemistry,
Department of Inorganic Chemistry, AT-1090 Vienna, Austria
| | - Enrico Mugnaioli
- Center
for Nanotechnology Innovation@NEST, Istituto
Italiano di Tecnologia, Piazza S. Silvestro 12, IT-56127 Pisa, Italy
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25
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Kong H, Zhang W, Shi G, Cui Z, Fu P, Liu M, He Y, Qiao X, Pang X. General Route to Colloidal Nanocrystal Clusters with Precise Hierarchical Control via Star-like Nanoreactors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:10461-10468. [PMID: 34431681 DOI: 10.1021/acs.langmuir.1c01286] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
A colloidal nanocrystal cluster (CNC) is a hierarchical nanostructure formed by clustering several nanocrystals into one nano-ensemble, which may exhibit unique optical or catalytic properties different from individual nanocrystals owing to the mutual interactions among neighboring component nanocrystals. However, there is still no universal synthetic route that could be applicable to diverse material compositions with precisely controlled hierarchical structures (i.e., nanocrystal number density, component nanocrystal size, and overall diameter of the CNC) up to now. Herein, a general and novel synthetic strategy was reported for crafting a wide range of inorganic CNCs (i.e., noble metal, semiconductor, and metal oxide) via utilizing amphiphilic star-like poly(4-vinylpyridine)-block-polystyrene diblock copolymers as nanoreactors prepared by sequential atom transfer radical polymerization. The hierarchical structure of rationally designed CNCs could be readily tailored by varying the P4VP molecular weight of star-like nanoreactors and the parameter optimization during the CNC preparation process, which was inaccessible by conventional synthetic methods.
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Affiliation(s)
- Huimin Kong
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Wenjie Zhang
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Ge Shi
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Zhe Cui
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Peng Fu
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Minying Liu
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Yanjie He
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
| | - Xiaoguang Qiao
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
- College of Materials Engineering; Henan International Joint Laboratory of Rare Earth Composite Materials, Henan University of Engineering, Zhengzhou 451191, P. R. China
| | - Xinchang Pang
- Henan Joint International Research Laboratory of Living Polymerizations and Functional Nanomaterials, Henan Key Laboratory of Advanced Nylon Materials and Application, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China
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26
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27
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Sánchez-López P, Kotolevich Y, Yocupicio-Gaxiola RI, Antúnez-García J, Chowdari RK, Petranovskii V, Fuentes-Moyado S. Recent Advances in Catalysis Based on Transition Metals Supported on Zeolites. Front Chem 2021; 9:716745. [PMID: 34434919 PMCID: PMC8380812 DOI: 10.3389/fchem.2021.716745] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Accepted: 07/22/2021] [Indexed: 11/13/2022] Open
Abstract
This article reviews the current state and development of thermal catalytic processes using transition metals (TM) supported on zeolites (TM/Z), as well as the contribution of theoretical studies to understand the details of the catalytic processes. Structural features inherent to zeolites, and their corresponding properties such as ion exchange capacity, stable and very regular microporosity, the ability to create additional mesoporosity, as well as the potential chemical modification of their properties by isomorphic substitution of tetrahedral atoms in the crystal framework, make them unique catalyst carriers. New methods that modify zeolites, including sequential ion exchange, multiple isomorphic substitution, and the creation of hierarchically porous structures both during synthesis and in subsequent stages of post-synthetic processing, continue to be discovered. TM/Z catalysts can be applied to new processes such as CO2 capture/conversion, methane activation/conversion, selective catalytic NOx reduction (SCR-deNOx), catalytic depolymerization, biomass conversion and H2 production/storage.
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Affiliation(s)
- Perla Sánchez-López
- Departamento de Nanocatálisis, Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Ensenada, Mexico
| | - Yulia Kotolevich
- Departamento de Nanocatálisis, Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Ensenada, Mexico
| | | | - Joel Antúnez-García
- Departamento de Nanocatálisis, Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Ensenada, Mexico
| | - Ramesh Kumar Chowdari
- Departamento de Nanocatálisis, Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Ensenada, Mexico
| | - Vitalii Petranovskii
- Departamento de Nanocatálisis, Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Ensenada, Mexico
| | - Sergio Fuentes-Moyado
- Departamento de Nanocatálisis, Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Ensenada, Mexico
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28
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Shaafi FB, Motavalizadehkakhky A, Zhiani R, Nouri SMM, Hosseiny M. Sulfated zirconium oxide-decorated magnetite KCC-1 as a durable and recyclable adsorbent for the efficient removal of asphaltene from crude oil. RSC Adv 2021; 11:26174-26187. [PMID: 35479476 PMCID: PMC9037333 DOI: 10.1039/d1ra04560a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Accepted: 07/14/2021] [Indexed: 11/21/2022] Open
Abstract
Sulfated zirconium oxide (ZrO2/SO4 2-) as a highly durable acidic reagent was immobilized on magnetite KCC-1 nanoparticles (Fe3O4@SiO2/KCC-1@ZrO2/SO4 2- NPs), and the resulting hybrid was used as a highly efficient recyclable adsorbent for the adsorption and removal of asphaltene from crude oil. The presence of ZrO2/SO4 2- groups not only promotes the adsorption capacity, but also helps recycle the adsorbents without any significant efficiency loss arising from its high chemical resistance. The results showed an obvious synergistic effect between the magnetic core (Fe3O4 NPs), fibrous silica (KCC-1) and the sulfated zirconium oxide groups with high correlation for asphaltene adsorption. The effective parameters in asphaltene adsorption, including initial asphaltene concentration, catalyst concentration and temperature, were investigated. Maximum adsorption occurred in the presence of 0.7 g L-1 of the adsorbent, at a concentration of 2000 mg L-1 of asphaltene. The asphaltene adsorption by NPs follows a quasi-second order adsorption kinetics. Asphaltene adsorption kinetics were studied by Langmuir, Freundlich, and Temkin isotherms. The prominent advantage of the adsorbent is its ability to be recovered after each adsorption by acid treatment, so that no significant reduction in adsorbent adsorption activity was observed, which can be directly attributed to the presence of ZrO2/SO4 2- groups in the hybrid.
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Affiliation(s)
- Farhad Bohlooli Shaafi
- Department of Chemical Engineering, Faculty of Sciences, Neyshabur Branch, Islamic Azad University Neyshabur Iran
| | | | - Rahele Zhiani
- Department of Chemistry, Faculty of Sciences, Neyshabur Branch, Islamic Azad University Neyshabur Iran .,New Materials Technology and Processing Research Center, Department of Chemistry, Neyshabur Branch, Islamic Azad University Neyshabur Iran
| | | | - Malihesadat Hosseiny
- Department of Chemistry, Faculty of Sciences, Neyshabur Branch, Islamic Azad University Neyshabur Iran
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29
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Gruene T, Holstein JJ, Clever GH, Keppler B. Establishing electron diffraction in chemical crystallography. Nat Rev Chem 2021; 5:660-668. [PMID: 37118416 DOI: 10.1038/s41570-021-00302-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/07/2021] [Indexed: 02/06/2023]
Abstract
The emerging field of 3D electron diffraction (3D ED) opens new opportunities for structure determination from sub-micrometre-sized crystals. Although the foundations of this technology emerged earlier, the past decade has seen developments in cryo-electron microscopy and (X-ray) crystallography that particularly enable the widespread use of 3D ED. This Perspective describes to chemists and chemical crystallographers just how similar electron and X-ray diffraction are and discusses their complementary aspects. We wish to establish 3D ED in the broader chemistry community, such that electron crystallography becomes a common part of the analytical chemistry toolkit. With a suitable instrument at their disposal, every skilled crystallographer can quickly learn to perform structure determinations using 3D ED.
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30
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Liu RS, Shi XD, Wang CT, Gao YZ, Xu S, Hao GP, Chen S, Lu AH. Advances in Post-Combustion CO 2 Capture by Physical Adsorption: From Materials Innovation to Separation Practice. CHEMSUSCHEM 2021; 14:1428-1471. [PMID: 33403787 DOI: 10.1002/cssc.202002677] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/19/2020] [Indexed: 06/12/2023]
Abstract
The atmospheric CO2 concentration continues a rapid increase to its current record high value of 416 ppm for the time being. It calls for advanced CO2 capture technologies. One of the attractive technologies is physical adsorption-based separation, which shows easy regeneration and high cycle stability, and thus reduced energy penalties and cost. The extensive research on this topic is evidenced by the growing body of scientific and technical literature. The progress spans from the innovation of novel porous adsorbents to practical separation practices. Major CO2 capture materials include the most widely used industrially relevant porous carbons, zeolites, activated alumina, mesoporous silica, and the newly emerging metal-organic frameworks (MOFs) and covalent-organic framework (COFs). The key intrinsic properties such as pore structure, surface chemistry, preferable adsorption sites, and other structural features that would affect CO2 capture capacity, selectivity, and recyclability are first discussed. The industrial relevant variables such as particle size of adsorbents, the mechanical strength, adsorption heat management, and other technological advances are equally important, even more crucial when scaling up from bench and pilot-scale to demonstration and commercial scale. Therefore, we aim to bring a full picture of the adsorption-based CO2 separation technologies, from adsorbent design, intrinsic property evaluation to performance assessment not only under ideal equilibrium conditions but also in realistic pressure swing adsorption processes.
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Affiliation(s)
- Ru-Shuai Liu
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Xiao-Dong Shi
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Cheng-Tong Wang
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Yu-Zhou Gao
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Shuang Xu
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Guang-Ping Hao
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - Shaoyun Chen
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
| | - An-Hui Lu
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, P. R. China
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