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Bo S, Yang K, Lü H, Zhu Z. Preparation of MAZ-Type Zeolite with High Silica. Molecules 2024; 29:3315. [PMID: 39064894 PMCID: PMC11279715 DOI: 10.3390/molecules29143315] [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: 06/16/2024] [Revised: 07/08/2024] [Accepted: 07/12/2024] [Indexed: 07/28/2024] Open
Abstract
The Si/Al molar ratio of MAZ aluminosilicate zeolite prepared by the direct hydrothermal method is generally less than five, thus giving rise to poor thermal and hydrothermal stability for this low-silica zeolite. With the purpose of enhancing the Si/Al molar ratio of MAZ zeolite, post-synthesized methods including acetic acid treatment and steaming treatment, as well as interzeolite transformation from FAU zeolite, were employed to prepare MAZ zeolite with high silica. It was found that steaming treatment was more effective in increasing the Si/Al molar ratio in comparison with acetic acid treatment, affording a maximum Si/Al molar ratio of 16.9 along with a preserved crystallinity of approximately 75%. Additionally, high-silica MAZ zeolite with a Si/Al molar ratio of up to 7.3 was also capable of being directly hydrothermally synthesized using interzeolite transformation from FAU zeolite.
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Affiliation(s)
| | - Kaixuan Yang
- College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, China; (S.B.); (H.L.)
| | | | - Zhiguo Zhu
- College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai 264005, China; (S.B.); (H.L.)
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2
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Mallette AJ, Shilpa K, Rimer JD. The Current Understanding of Mechanistic Pathways in Zeolite Crystallization. Chem Rev 2024; 124:3416-3493. [PMID: 38484327 DOI: 10.1021/acs.chemrev.3c00801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
Zeolite catalysts and adsorbents have been an integral part of many commercial processes and are projected to play a significant role in emerging technologies to address the changing energy and environmental landscapes. The ability to rationally design zeolites with tailored properties relies on a fundamental understanding of crystallization pathways to strategically manipulate processes of nucleation and growth. The complexity of zeolite growth media engenders a diversity of crystallization mechanisms that can manifest at different synthesis stages. In this review, we discuss the current understanding of classical and nonclassical pathways associated with the formation of (alumino)silicate zeolites. We begin with a brief overview of zeolite history and seminal advancements, followed by a comprehensive discussion of different classes of zeolite precursors with respect to their methods of assembly and physicochemical properties. The following two sections provide detailed discussions of nucleation and growth pathways wherein we emphasize general trends and highlight specific observations for select zeolite framework types. We then close with conclusions and future outlook to summarize key hypotheses, current knowledge gaps, and potential opportunities to guide zeolite synthesis toward a more exact science.
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Affiliation(s)
- Adam J Mallette
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, United States
| | - Kumari Shilpa
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, United States
| | - Jeffrey D Rimer
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, Texas 77204, United States
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3
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Helfrecht BA, Pireddu G, Semino R, Auerbach SM, Ceriotti M. Ranking the synthesizability of hypothetical zeolites with the sorting hat. DIGITAL DISCOVERY 2022; 1:779-789. [PMID: 36561986 PMCID: PMC9721151 DOI: 10.1039/d2dd00056c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 10/10/2022] [Indexed: 12/12/2022]
Abstract
Zeolites are nanoporous alumino-silicate frameworks widely used as catalysts and adsorbents. Even though millions of siliceous networks can be generated by computer-aided searches, no new hypothetical framework has yet been synthesized. The needle-in-a-haystack problem of finding promising candidates among large databases of predicted structures has intrigued materials scientists for decades; yet, most work to date on the zeolite problem has been limited to intuitive structural descriptors. Here, we tackle this problem through a rigorous data science scheme-the "Zeolite Sorting Hat"-that exploits interatomic correlations to discriminate between real and hypothetical zeolites and to partition real zeolites into compositional classes that guide synthetic strategies for a given hypothetical framework. We find that, regardless of the structural descriptor used by the Zeolite Sorting Hat, there remain hypothetical frameworks that are incorrectly classified as real ones, suggesting that they might be good candidates for synthesis. We seek to minimize the number of such misclassified frameworks by using as complete a structural descriptor as possible, thus focusing on truly viable synthetic targets, while discovering structural features that distinguish real and hypothetical frameworks as an output of the Zeolite Sorting Hat. Further ranking of the candidates can be achieved based on thermodynamic stability and/or their suitability for the desired applications. Based on this workflow, we propose three hypothetical frameworks differing in their molar volume range as the top targets for synthesis, each with a composition suggested by the Zeolite Sorting Hat. Finally, we analyze the behavior of the Zeolite Sorting Hat with a hierarchy of structural descriptors including intuitive descriptors reported in previous studies, finding that intuitive descriptors produce significantly more misclassified hypothetical frameworks, and that more rigorous interatomic correlations point to second-neighbor Si-O distances around 3.2-3.4 Å as the key discriminatory factor.
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Affiliation(s)
- Benjamin A. Helfrecht
- Laboratory of Computational Science and Modeling, Institut des Matériaux, École Polytechnique Fédérale de Lausanne1015 LausanneSwitzerland
| | - Giovanni Pireddu
- PASTEUR, Département de Chimie, École Normale Supérieure, PSL University, Sorbonne Université, CNRS24 rue Lhomond75005 ParisFrance,Sorbonne Université, CNRS, Physico-chimie des Electrolytes et Nanosystèmes InterfaciauxPHENIXF-75005 ParisFrance
| | - Rocio Semino
- Sorbonne Université, CNRS, Physico-chimie des Electrolytes et Nanosystèmes InterfaciauxPHENIXF-75005 ParisFrance,ICGM, Univ. Montpellier, CNRS, ENSCMMontpellierFrance
| | - Scott M. Auerbach
- Department of Chemistry and Department of Chemical Engineering, University of Massachusetts AmherstAmherstMA 01003USA
| | - Michele Ceriotti
- Laboratory of Computational Science and Modeling, Institut des Matériaux, École Polytechnique Fédérale de Lausanne1015 LausanneSwitzerland
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4
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Dhabal D, Bertolazzo AA, Molinero V. What Is the Smallest Zeolite That Could Be Synthesized?**. Angew Chem Int Ed Engl 2022; 61:e202205095. [DOI: 10.1002/anie.202205095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Debdas Dhabal
- Department of Chemistry University of Utah Salt Lake City UT 84112 USA
| | | | - Valeria Molinero
- Department of Chemistry University of Utah Salt Lake City UT 84112 USA
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5
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Shere I, Adapa S, Malani A. Development of coarse-grained potential of silica species. MOLECULAR SIMULATION 2022. [DOI: 10.1080/08927022.2022.2088745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Inderdip Shere
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Sai Adapa
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Ateeque Malani
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
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6
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Dhabal D, Bertolazzo AA, Molinero V. What Is the Smallest Zeolite That Could Be Synthesized?**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Debdas Dhabal
- Department of Chemistry University of Utah Salt Lake City UT 84112 USA
| | | | - Valeria Molinero
- Department of Chemistry University of Utah Salt Lake City UT 84112 USA
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7
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Liu X, Liu C, Feng Z, Meng C. The Promoter Role of Amines in the Condensation of Silicic Acid: A First-Principles Investigation. ACS OMEGA 2021; 6:22811-22819. [PMID: 34514252 PMCID: PMC8427787 DOI: 10.1021/acsomega.1c03235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/18/2021] [Indexed: 06/13/2023]
Abstract
Though well-recognized, the molecular-level understanding of the multifunctional roles of amines in the condensation of polysilicic acids, which is one of the key processes in hydrothermal synthesis of zeolites, is still limited. Taking ethylamine as a prototype, we investigated the mechanism of polysilicic acid condensation in the existence of organic amines in aqueous solution with extensive first-principles-based calculations. Because of the high proton affinity, ethylamine exists as amine silicates and alters the subsequent condensation mechanisms from a 1-step lateral attack mechanism accompanied with simultaneous intermolecular proton transfer in neutral aqueous solution to a 2-step SN2-like mechanism. Specifically, the 5-coordinated Si species that were not observed on pathways of condensation in neutral solution are effectively stabilized by the ethylamine cations as intermediates, and the barriers for condensation of ortho-silicic acid are significantly reduced from 133 kJ/mol in neutral solution to 58 and 63 kJ/mol for formation of the 5-coordinated Si intermediate and proton transfer for water release, respectively. Similar variations of mechanisms and barriers for condensation were also observed in the formation of cyclic trimers as well as linear and cyclic tetramers of ortho-silicic acids. Based on these, it was proposed that apart from acting as structure-directing agents, pore fillers, and pH adjusters, organic amines can also function as promoters in the condensation of polysilicic acids.
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8
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Liu Y, Zhu W, Jiang J, Zhu C, Liu C, Slater B, Ojamäe L, Francisco JS, Zeng XC. Formation of porous ice frameworks at room temperature. Proc Natl Acad Sci U S A 2021; 118:e2104442118. [PMID: 34326263 PMCID: PMC8346885 DOI: 10.1073/pnas.2104442118] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Bulk crystalline ices with ultralow densities have been demonstrated to be thermodynamically metastable at negative pressures. However, the direct formation of these bulk porous ices from liquid water at negative pressures is extremely challenging. Inspired by approaches toward porous media based on host-guest chemistry, such as metal-organic frameworks and covalent organic frameworks, we herein demonstrate via molecular dynamics simulations that a class of ultralow-density porous ices with upright channels can be formed spontaneously from liquid water at 300 K with the assistance of carbon nanotube arrays. We refer to these porous ice polymorphs as water oxygen-vertex frameworks (WOFs). Notably, our simulations revealed that the liquid-WOF phase transition is first-order and occurs at room temperature. All the WOFs exhibited the unique structural feature that they can be regarded as assemblies of nanoribbons of hexagonal bilayer ice (2D ice I) at their armchair or zigzag edges. Based on density functional theory calculations, a comprehensive phase diagram of the WOFs was constructed considering both the thermodynamic and thermal stabilities of the porous ices at negative pressures. Like other types of porous media, these WOFs may be applicable to gas storage, purification, and separation. Moreover, these biocompatible porous ice networks may be exploited as medical-related carriers.
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Affiliation(s)
- Yuan Liu
- School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China;
| | - Weiduo Zhu
- Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588
| | - Jian Jiang
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588
| | - Chongqin Zhu
- Department of Earth and Environmental Science, University of Pennsylvania, Philadelphia, PA 19104
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104
| | - Chang Liu
- College of Physics, Liaoning University, Shenyang 110036, China
| | - Ben Slater
- Department of Chemistry, University College London, London WC1H 0AJ, United Kingdom
| | - Lars Ojamäe
- Department of Physics, Chemistry and Biology, Linköping University, SE-581 83 Linköping, Sweden
| | - Joseph S Francisco
- Department of Earth and Environmental Science, University of Pennsylvania, Philadelphia, PA 19104;
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104
| | - Xiao Cheng Zeng
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588;
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9
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Dong L, Zhai D, Chen Z, Zheng G, Wang Y, Hong M, Yang S. A dramatic conformational effect of multifunctional zwitterions on zeolite crystallization. Chem Commun (Camb) 2020; 56:14693-14696. [PMID: 33165479 DOI: 10.1039/d0cc04965d] [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
Carnitine functions as a mesoporogen in LTA zeolite synthesis whereas its structural analogue acetylcarnitine acts as a crystal growth modifier. An array of experimental and theoretical studies reveal a remarkable effect of molecular conformation on the actual roles of organic functional groups during zeolite crystallization.
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Affiliation(s)
- Lei Dong
- State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Nano-Micro Materials Research, School of Chemical Biology & Biotechnology, Peking University Shenzhen Graduate School (PKUSZ), Shenzhen 518055, P. R. China.
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10
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Zhu Z, Ma H, Xu H, Wang B, Wu P, Lü H. Oxidative desulfurization of model oil over Ta-Beta zeolite synthesized via structural reconstruction. JOURNAL OF HAZARDOUS MATERIALS 2020; 393:122458. [PMID: 32155526 DOI: 10.1016/j.jhazmat.2020.122458] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 03/01/2020] [Accepted: 03/02/2020] [Indexed: 06/10/2023]
Abstract
As to metallosilicate zeolites, ions with larger size such as Ta5+ in the gels greatly retarded their crystallization during the hydrothermal synthesis, affording long-winded synthesis periods, up-limited framework-substituted metal contents, or even frustrated outcome. An efficient hydrothermal synthesis strategy for metallosilicate, in this case of Ta framework-substituted *BEA zeolite, via structural reconstruction was proposed to stride the gap. The Ta content in our developed Ta-Beta-Re-50 zeolite achieved up to 5.48 % (Si/Ta = 52), breaking through the limitation of Ta contents for conventional method (Si/Ta > 100). Additionally, this Ta-Beta-Re zeolite possessed nanosized crystals (20-40 nm) and short crystallization time (8 h), significantly improving space-time yields of practical zeolite production. Through spectroscopic study, it was confirmed that the existence of zeolite structural units intensively facilitated the formation of nucleation and crystal growth. This innovative Ta-Beta zeolite demonstrated high catalytic performances for oxidation desulfurization, far outperforming traditional fluoride-mediated Ta-Beta-F, which was ascribed to its excellent diffusion properties and incredible high isolated Ta contents. Additionally, the catalytic performance of Ta-Beta-Re could be regenerated after simple calcination and the deactivation may be caused by pore blocking of organics. This work provides a new method for rationally design and construction of metallosilicate materials with high activity for catalytic oxidation applications, which can bridge the conceptual and technical gap between periodic trends and zeolite material synthesis.
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Affiliation(s)
- Zhiguo Zhu
- Green Chemistry Centre, College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai, 264005, Shandong, China
| | - Haikuo Ma
- Green Chemistry Centre, College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai, 264005, Shandong, China
| | - Hao Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Rd. 3663, Shanghai, 200062, China
| | - Bo Wang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong, 252059, China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Process, School of Chemistry and Molecular Engineering, East China Normal University, North Zhongshan Rd. 3663, Shanghai, 200062, China.
| | - Hongying Lü
- Green Chemistry Centre, College of Chemistry and Chemical Engineering, Yantai University, 30 Qingquan Road, Yantai, 264005, Shandong, China.
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11
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Yagasaki T, Yamasaki M, Matsumoto M, Tanaka H. Formation of hot ice caused by carbon nanobrushes. J Chem Phys 2019. [DOI: 10.1063/1.5111843] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Takuma Yagasaki
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - Masaru Yamasaki
- Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Masakazu Matsumoto
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
| | - Hideki Tanaka
- Research Institute for Interdisciplinary Science, Okayama University, Okayama 700-8530, Japan
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12
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Liu Y, Huang Y, Zhu C, Li H, Zhao J, Wang L, Ojamäe L, Francisco JS, Zeng XC. An ultralow-density porous ice with the largest internal cavity identified in the water phase diagram. Proc Natl Acad Sci U S A 2019; 116:12684-12691. [PMID: 31182582 PMCID: PMC6600908 DOI: 10.1073/pnas.1900739116] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The recent back-to-back findings of low-density porous ice XVI and XVII have rekindled the century-old field of the solid-state physics and chemistry of water. Experimentally, both ice XVI and XVII crystals can be produced by extracting guest atoms or molecules enclosed in the cavities of preformed ice clathrate hydrates. Herein, we examine more than 200 hypothetical low-density porous ices whose structures were generated according to a database of zeolite structures. Hitherto unreported porous EMT ice, named according to zeolite nomenclature, is identified to have an extremely low density of 0.5 g/cm3 and the largest internal cavity (7.88 Å in average radius). The EMT ice can be viewed as dumbbell-shaped motifs in a hexagonal close-packed structure. Our first-principles computations and molecular dynamics simulations confirm that the EMT ice is stable under negative pressures and exhibits higher thermal stability than other ultralow-density ices. If all cavities are fully occupied by hydrogen molecules, the EMT ice hydrate can easily outperform the record hydrogen storage capacity of 5.3 wt % achieved with sII hydrogen hydrate. Most importantly, in the reconstructed temperature-pressure (T-P) phase diagram of water, the EMT ice is located at deeply negative pressure regions below ice XVI and at higher temperature regions next to FAU. Last, the phonon spectra of empty-sII, FAU, EMT, and other zeolite-like ice structures are computed by using the dispersion corrected vdW-DF2 functional. Compared with those of ice XI (0.93 g/cm3), both the bending and stretching vibrational modes of the EMT ice are blue-shifted due to their weaker hydrogen bonds.
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Affiliation(s)
- Yuan Liu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588
| | - Yingying Huang
- Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201210 Shanghai, China
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Ministry of Education, 116024 Dalian, China
| | - Chongqin Zhu
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588
- Department of Earth and Environmental Science, University of Pennsylvania, Philadelphia, PA 19104-6316
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6316
| | - Hui Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029 Beijing, China
| | - Jijun Zhao
- Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, Dalian University of Technology, Ministry of Education, 116024 Dalian, China
| | - Lu Wang
- Collaborative Innovation Center of Chemistry for Energy Materials, Department of Materials Science and Engineering, University of Science and Technology of China, 230026 Hefei, China;
| | - Lars Ojamäe
- Department of Physics, Chemistry, and Biology, Linköping University, SE-58 183 Linköping, Sweden
| | - Joseph S Francisco
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588;
- Department of Earth and Environmental Science, University of Pennsylvania, Philadelphia, PA 19104-6316
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104-6316
| | - Xiao Cheng Zeng
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, 100029 Beijing, China;
- Department of Chemistry, University of Nebraska-Lincoln, Lincoln, NE 68588
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13
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Marriott M, Lupi L, Kumar A, Molinero V. Following the nucleation pathway from disordered liquid to gyroid mesophase. J Chem Phys 2019; 150:164902. [PMID: 31042878 DOI: 10.1063/1.5081850] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Mesophases have order intermediate between liquids and crystals and arise in systems with frustration, such as surfactants, block copolymers, and Janus nanoparticles. The gyroid mesophase contains two interpenetrated, nonintersecting chiral networks that give it properties useful for photonics. It is challenging to nucleate a gyroid from the liquid. Elucidating the reaction coordinate for gyroid nucleation could assist in designing additives that facilitate the formation of the mesophase. However, the complexity of the gyroid structure and the extreme weakness of the first-order liquid to gyroid transition make this a challenging quest. Here, we investigate the pathway and transition states for the nucleation of a gyroid from the liquid in molecular simulations with a mesogenic binary mixture. We find that the gyroid nuclei at the transition states have a large degree of positional disorder and are not compact, consistent with the low surface free energy of the liquid-gyroid interface. A combination of bond-order parameters for the minor component is best to describe the passage from liquid to gyroid, among those we consider. The committor analyses, however, show that this best coordinate is not perfect and suggests that accounting for the relative ordering of the two interpenetrated networks in infant nuclei, as well as for signatures of ordering in the major component of the mesophase, would improve the accuracy of the reaction coordinate for gyroid formation and its use to evaluate nucleation barriers. To our knowledge, this study is the first to investigate the reaction coordinate and critical nuclei for the formation of any mesophase from an amorphous phase.
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Affiliation(s)
- Maile Marriott
- Department of Chemistry, The University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-085, USA
| | - Laura Lupi
- Department of Chemistry, The University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-085, USA
| | - Abhinaw Kumar
- Department of Chemistry, The University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-085, USA
| | - Valeria Molinero
- Department of Chemistry, The University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112-085, USA
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14
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Hall KW, Zhang Z, Burnham CJ, Guo GJ, Carpendale S, English NJ, Kusalik PG. Does Local Structure Bias How a Crystal Nucleus Evolves? J Phys Chem Lett 2018; 9:6991-6998. [PMID: 30484659 DOI: 10.1021/acs.jpclett.8b03115] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The broad scientific and technological importance of crystallization has led to significant research probing and rationalizing crystal nucleation processes. Previous work has generally neglected the possibility of the molecular-level dynamics of individual crystal nuclei coupling to local structures. However, recent experimental work has conjectured that this can occur. Therefore, to address a deficiency in scientific understanding of crystallization, we have probed the nucleation of prototypical single and multicomponent crystals (specifically, ice and mixed gas hydrates). We establish that local structures can bias the evolution of nascent crystal phases on a nanosecond time scale by, for example, promoting the appearance or disappearance of specific crystal motifs and thus reveal a new facet of crystallization behavior. Moreover, we demonstrate structural biases are likely present during crystallization processes beyond ice and gas hydrate formation. Structurally biased dynamics are a lens for understanding existing computational and experimental results while pointing to future opportunities.
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Affiliation(s)
- Kyle Wm Hall
- Department of Chemistry , University of Calgary , Calgary , Alberta T2N 1N4 , Canada
- Department of Computer Science , University of Calgary , Calgary , Alberta T2N 1N4 , Canada
| | - Zhengcai Zhang
- Department of Chemistry , University of Calgary , Calgary , Alberta T2N 1N4 , Canada
- Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics , Chinese Academy of Sciences , Beijing 100029 , China
| | - Christian J Burnham
- School of Chemical and Bioprocess Engineering , University College Dublin , Belfield, Dublin 4 , Ireland
| | - Guang-Jun Guo
- Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics , Chinese Academy of Sciences , Beijing 100029 , China
- College of Earth Science , University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Sheelagh Carpendale
- Department of Computer Science , University of Calgary , Calgary , Alberta T2N 1N4 , Canada
| | - Niall J English
- School of Chemical and Bioprocess Engineering , University College Dublin , Belfield, Dublin 4 , Ireland
| | - Peter G Kusalik
- Department of Chemistry , University of Calgary , Calgary , Alberta T2N 1N4 , Canada
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