1
|
Zhang X, Yang M, Wang L, Han J, Lou C, Xu S, Zhang Y, Wu R, Tian P, Liu Z. Recognizing the Minimum Structural Units Driving the Crystallization of SAPO-34 in a Top-Down Process. Chemistry 2023; 29:e202203886. [PMID: 36577701 DOI: 10.1002/chem.202203886] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 12/23/2022] [Accepted: 12/25/2022] [Indexed: 12/29/2022]
Abstract
Recognizing the structure and nature of the nuclei for zeolites crystallization on an atomic level is of great importance, which can provide guidance on the control of crystallization kinetics and the rational synthesis of zeolites. However, it remains a long-standing challenge due to the difficulty in characterization of amorphous precursor with limited crystal nuclei. Herein, a top-down synthesis system was designed for SAPO-34 molecular sieve and well investigated. A clear precursor solution with abundant SAPO-34 crystal nuclei was obtained under a depolymerization-dominant condition. The species in the liquid precursor were identified by FT-ICR MS, solid-state MAS NMR and atomic pair distribution function analyses. In combination with various designed experiments, it is revealed that both the formation of small species containing Si-O-Al bonds and reaching a certain concentration, is crucial for driving the crystallization of SAPO-34, rather than structural units with specific spatial conformation. This work provides an important understanding on the (pre)nucleation of SAPO-34 and sheds light on the synthesis control of SAPO molecular sieves.
Collapse
Affiliation(s)
- Xiaosi Zhang
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, P. R. China
- University of Chinese Academy of Sciences, 100049, Beijing, P. R. China
| | - Miao Yang
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, P. R. China
| | - Li Wang
- Laboratory of High-Resolution Mass Spectrometry Technologies, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, P. R. China
| | - Jingfeng Han
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, P. R. China
| | - Caiyi Lou
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, P. R. China
- University of Chinese Academy of Sciences, 100049, Beijing, P. R. China
| | - Shutao Xu
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, P. R. China
| | - Yanyu Zhang
- Malvern Panalytical Division Spectris Instrumentation & Systems Shanghai Ltd, 200234, Shanghai, P. R. China
| | - Ren'an Wu
- Laboratory of High-Resolution Mass Spectrometry Technologies, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, P. R. China
| | - Peng Tian
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, P. R. China
| | - Zhongmin Liu
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, P. R. China
- University of Chinese Academy of Sciences, 100049, Beijing, P. R. China
| |
Collapse
|
2
|
Miletto I, Meazza M, Paul G, Cossi M, Gianotti E, Marchese L, Rios R, Pera-Titus M, Raja R. Influence of Pore Size in Benzoin Condensation of Furfural Using Heterogenized Benzimidazole Organocatalysts. Chemistry 2022; 28:e202202771. [PMID: 36302695 PMCID: PMC10108080 DOI: 10.1002/chem.202202771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 10/24/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
Abstract
A designed N-heterocyclic carbene (NHC) catalyst was covalently anchored on a range of mesoporous and hierarchical supports, to study the influence of pore size in the benzoin condensation of furfural. The structural and spectroscopic characteristics of the anchored catalysts were investigated, also with the help of molecular dynamics simulations, in order to rationalize the degree of stability and recyclability of the heterogenized organocatalysts. Quantitative yields (99 %) and complete recyclability were maintained after several cycles, vindicating the design rationale.
Collapse
Affiliation(s)
- Ivana Miletto
- Department of Pharmaceutical Sciences, Università del Piemonte Orientale, Largo Donegani 2/3, 28100, Novara, Italy
| | - Marta Meazza
- School of Chemistry, University of Southampton, Highfield campus, Southampton, SO171BJ, UK
| | - Geo Paul
- Department of Science and Technological Innovation, Università del Piemonte Orientale, V. T. Michel 11, 15100, Alessandria, Italy
| | - Maurizio Cossi
- Department of Science and Technological Innovation, Università del Piemonte Orientale, V. T. Michel 11, 15100, Alessandria, Italy
| | - Enrica Gianotti
- Department for the Sustainable Development and Ecological Transition, Università del Piemonte Orientale, Piazza Sant'Eusebio 5, 13100, Vercelli, Italy
| | - Leonardo Marchese
- Department of Science and Technological Innovation, Università del Piemonte Orientale, V. T. Michel 11, 15100, Alessandria, Italy
| | - Ramon Rios
- School of Chemistry, University of Southampton, Highfield campus, Southampton, SO171BJ, UK.,Current address: Department of Chemistry, Khalifa University, SAN Campus, Abu Dhabi (UAE)
| | - Marc Pera-Titus
- Cardiff Catalysis Institute, School of Chemistry, Main Building, Cardiff University, Park Place, Cardiff, CF10 3AT, UK
| | - Robert Raja
- School of Chemistry, University of Southampton, Highfield campus, Southampton, SO171BJ, UK
| |
Collapse
|
3
|
Describing the Influence of Ball-milling on the Amorphization of Flubendazole Using the PDF and RMC Methods with X-ray Powder Diffraction Data. J Pharm Sci 2022; 111:3054-3063. [PMID: 35760122 DOI: 10.1016/j.xphs.2022.06.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 06/17/2022] [Accepted: 06/17/2022] [Indexed: 12/14/2022]
Abstract
Flubendazole (FBZ) is a poorly water-soluble drug, and different methodologies have been proposed to improve its oral bioavailability. Obtaining the amorphous drug phase is an alternative to improve its water solubility. Several techniques for drug amorphization, such as spray drying, lyophilization, melt quenching, solvent-evaporation, and ball milling, can yield various types of structural disorder and possibly render variations in physicochemical properties. Herein, we focus on evaluating the influence of the ball-milling process on the amorphization of FBZ. The characterization of the average global and local structures before, during, and after the milling process is described by sequential Rietveld refinements, pair distribution function analysis, and the Reverse Monte Carlo method. We show that preserving the local structure (nearest molecules) can be responsible for avoiding the fast structure recrystallization commonly observed when using the solvent-evaporation process for the studied drug.
Collapse
|
4
|
Mathiesen JK, Bøjesen ED, Pedersen JK, Kjaer ETS, Juelsholt M, Cooper S, Quinson J, Anker AS, Cutts G, Keeble DS, Thomsen MS, Rossmeisl J, Jensen KMØ. Breaking with the Principles of Coreduction to Form Stoichiometric Intermetallic PdCu Nanoparticles. SMALL METHODS 2022; 6:e2200420. [PMID: 35460216 DOI: 10.1002/smtd.202200420] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Indexed: 06/14/2023]
Abstract
Intermetallic nanoparticles (NPs) have shown enhanced catalytic properties as compared to their disordered alloy counterparts. To advance their use in green energy, it is crucial to understand what controls the formation of intermetallic NPs over alloy structures. By carefully selecting the additives used in NP synthesis, it is here shown that monodisperse, intermetallic PdCu NPs can be synthesized in a controllable manner. Introducing the additives iron(III) chloride and ascorbic acid, both morphological and structural control can be achieved. Combined, these additives provide a synergetic effect resulting in precursor reduction and defect-free growth; ultimately leading to monodisperse, single-crystalline, intermetallic PdCu NPs. Using in situ X-ray total scattering, a hitherto unknown transformation pathway is reported that diverges from the commonly reported coreduction disorder-order transformation. A Cu-rich structure initially forms, which upon the incorporation of Pd(0) and atomic ordering forms intermetallic PdCu NPs. These findings underpin that formation of stoichiometric intermetallic NPs is not limited by standard reduction potential matching and coreduction mechanisms, but is instead driven by changes in the local chemistry. Ultimately, using the local chemistry as a handle to tune the NP structure might open new opportunities to expand the library of intermetallic NPs by exploiting synthesis by design.
Collapse
Affiliation(s)
- Jette K Mathiesen
- Department of Chemistry and Nano-Science Center, University of Copenhagen, Universitetsparken 5, Copenhagen, 2100, Denmark
| | - Espen D Bøjesen
- Interdisciplinary Nanoscience Center & Aarhus University Centre for Integrated Materials Research, Aarhus University, Gustav Wieds Vej 14, Aarhus C, 8000, Denmark
| | - Jack K Pedersen
- Department of Chemistry and Nano-Science Center, University of Copenhagen, Universitetsparken 5, Copenhagen, 2100, Denmark
| | - Emil T S Kjaer
- Department of Chemistry and Nano-Science Center, University of Copenhagen, Universitetsparken 5, Copenhagen, 2100, Denmark
| | - Mikkel Juelsholt
- Department of Materials, University of Oxford, Parks Road, Oxford, OX1 3PH, UK
| | - Susan Cooper
- Department of Chemistry and Nano-Science Center, University of Copenhagen, Universitetsparken 5, Copenhagen, 2100, Denmark
| | - Jonathan Quinson
- Department of Chemistry and Nano-Science Center, University of Copenhagen, Universitetsparken 5, Copenhagen, 2100, Denmark
| | - Andy S Anker
- Department of Chemistry and Nano-Science Center, University of Copenhagen, Universitetsparken 5, Copenhagen, 2100, Denmark
| | - Geoff Cutts
- Diamond Light Source, Harwell Campus, Oxford, OX11 0DE, UK
| | - Dean S Keeble
- Diamond Light Source, Harwell Campus, Oxford, OX11 0DE, UK
| | - Maria S Thomsen
- Department of Chemistry and Nano-Science Center, University of Copenhagen, Universitetsparken 5, Copenhagen, 2100, Denmark
| | - Jan Rossmeisl
- Department of Chemistry and Nano-Science Center, University of Copenhagen, Universitetsparken 5, Copenhagen, 2100, Denmark
| | - Kirsten M Ø Jensen
- Department of Chemistry and Nano-Science Center, University of Copenhagen, Universitetsparken 5, Copenhagen, 2100, Denmark
| |
Collapse
|
5
|
van Vreeswijk SH, Weckhuysen BM. Emerging Analytical Methods to Characterize Zeolite-Based Materials. Natl Sci Rev 2022; 9:nwac047. [PMID: 36128456 PMCID: PMC9477204 DOI: 10.1093/nsr/nwac047] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Revised: 02/23/2022] [Accepted: 02/28/2022] [Indexed: 11/23/2022] Open
Abstract
Zeolites and zeolitic materials are, through their use in numerous conventional and sustainable applications, very important to our daily lives, including to foster the necessary transition to a more circular society. The characterization of zeolite-based materials has a tremendous history and a great number of applications and properties of these materials have been discovered in the past decades. This review focuses on recently developed novel as well as more conventional techniques applied with the aim of better understanding zeolite-based materials. Recently explored analytical methods, e.g. atom probe tomography, scanning transmission X-ray microscopy, confocal fluorescence microscopy and photo-induced force microscopy, are discussed on their important contributions to the better understanding of zeolites as they mainly focus on the micro- to nanoscale chemical imaging and the revelation of structure–composition–performance relationships. Some other techniques have a long and established history, e.g. nuclear magnetic resonance, infrared, neutron scattering, electron microscopy and X-ray diffraction techniques, and have gone through increasing developments allowing the techniques to discover new and important features in zeolite-based materials. Additional to the increasing application of these methods, multiple techniques are nowadays used to study zeolites under working conditions (i.e. the in situ/operando mode of analysis) providing new insights in reaction and deactivation mechanisms.
Collapse
Affiliation(s)
- S H van Vreeswijk
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - B M Weckhuysen
- Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| |
Collapse
|
6
|
Terban MW, Billinge SJL. Structural Analysis of Molecular Materials Using the Pair Distribution Function. Chem Rev 2022; 122:1208-1272. [PMID: 34788012 PMCID: PMC8759070 DOI: 10.1021/acs.chemrev.1c00237] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Indexed: 12/16/2022]
Abstract
This is a review of atomic pair distribution function (PDF) analysis as applied to the study of molecular materials. The PDF method is a powerful approach to study short- and intermediate-range order in materials on the nanoscale. It may be obtained from total scattering measurements using X-rays, neutrons, or electrons, and it provides structural details when defects, disorder, or structural ambiguities obscure their elucidation directly in reciprocal space. While its uses in the study of inorganic crystals, glasses, and nanomaterials have been recently highlighted, significant progress has also been made in its application to molecular materials such as carbons, pharmaceuticals, polymers, liquids, coordination compounds, composites, and more. Here, an overview of applications toward a wide variety of molecular compounds (organic and inorganic) and systems with molecular components is presented. We then present pedagogical descriptions and tips for further implementation. Successful utilization of the method requires an interdisciplinary consolidation of material preparation, high quality scattering experimentation, data processing, model formulation, and attentive scrutiny of the results. It is hoped that this article will provide a useful reference to practitioners for PDF applications in a wide realm of molecular sciences, and help new practitioners to get started with this technique.
Collapse
Affiliation(s)
- Maxwell W. Terban
- Max
Planck Institute for Solid State Research, Heisenbergstraße 1, 70569 Stuttgart, Germany
| | - Simon J. L. Billinge
- Department
of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, United States
- Condensed
Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| |
Collapse
|
7
|
Trunschke A. Prospects and challenges for autonomous catalyst discovery viewed from an experimental perspective. Catal Sci Technol 2022. [DOI: 10.1039/d2cy00275b] [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
Autonomous catalysis research requires elaborate integration of operando experiments into automated workflows. Suitable experimental data for analysis by artificial intelligence can be measured more readily according to standard operating procedures.
Collapse
Affiliation(s)
- Annette Trunschke
- Fritz-Haber-Institut der Max-Planck-Gesellschaft, Department of Inorganic Chemistry, Faradayweg 4-6, 14195 Berlin, Germany
| |
Collapse
|
8
|
Kollias L, Cantu DC, Glezakou V, Rousseau R, Salvalaglio M. On the Role of Enthalpic and Entropic Contributions to the Conformational Free Energy Landscape of MIL‐101(Cr) Secondary Building Units. ADVANCED THEORY AND SIMULATIONS 2020. [DOI: 10.1002/adts.202000092] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Loukas Kollias
- Thomas Young Centre and Department of Chemical Engineering University College London London WC1E 7JE UK
| | - David C. Cantu
- Chemical and Materials Engineering Department University of Nevada Reno Reno NV 89557 USA
| | | | - Roger Rousseau
- Basic and Applied Molecular Foundations Pacific Northwest National Laboratory Richland WA 99352 USA
| | - Matteo Salvalaglio
- Thomas Young Centre and Department of Chemical Engineering University College London London WC1E 7JE UK
| |
Collapse
|
9
|
Potter ME. Down the Microporous Rabbit Hole of Silicoaluminophosphates: Recent Developments on Synthesis, Characterization, and Catalytic Applications. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02278] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Matthew E. Potter
- Department of Chemistry, University of Southampton, Southampton, Hampshire SO17 1BJ, United Kingdom
| |
Collapse
|