1
|
Susman MD, Pham HN, West D, Chinta S, Datye AK, Rimer JD. High-Index NiO Particle Synthesis in Alkali Chloride Salts: Nonclassical Crystallization Pathways and Thermally-Induced Surface Restructuring. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308166. [PMID: 38321841 DOI: 10.1002/smll.202308166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 01/03/2024] [Indexed: 02/08/2024]
Abstract
The formation mechanism(s) of high-index facets in metal oxides is not widely understood but remains a topic of interest owing to the challenges of stabilizing high-energy surfaces. These metal oxide crystal surfaces are expected to provide unique physicochemical characteristics; therefore, understanding crystallization pathways may enable the rational design of materials with controlled properties. Here the crystallization of NiO via thermal decomposition of a nickel source in excess of alkali chlorides is examined, focusing on KCl, which produces trapezohedral NiO (311) particles that are difficult to achieve through alternative methods. Trapezohedral NiO crystals are confirmed to grow via a molten eutectic where NiO nucleation is followed by nonclassical crystallization through processes resembling colloidal assembly. Aggregates comprised of NiO nanocrystals form mesostructures that ripen with heating time and exhibit fewer grain boundaries as they transition into single-crystalline particles. At temperatures higher than those of NiO crystallization, there is a restructuring of (311) facets into microfacets exposing (111) and (100) surfaces. These findings illustrate the complex crystallization processes taking place during molten salt synthesis. The ability to generate metal oxide particles with high-index facets has the potential to be a more generalized approach to unlock the physicochemical properties of materials for diverse applications.
Collapse
Affiliation(s)
- Mariano D Susman
- Chemical and Biomolecular Engineering, University of Houston, 4226 Martin Luther King Blvd., Houston, TX, 77204-4004, USA
| | - Hien N Pham
- Chemical and Biological Engineering and Center for Microengineered Materials, University of New Mexico, Albuquerque, NM, 87131-0001, USA
| | - David West
- SABIC Technology Center, 1600 Industrial Blvd. Sugar Land, Houston, TX, 77478, USA
| | | | - Abhaya K Datye
- Chemical and Biological Engineering and Center for Microengineered Materials, University of New Mexico, Albuquerque, NM, 87131-0001, USA
| | - Jeffrey D Rimer
- Chemical and Biomolecular Engineering, University of Houston, 4226 Martin Luther King Blvd., Houston, TX, 77204-4004, USA
| |
Collapse
|
2
|
Ochea RAG, Benzaquén TB, Encina ER. A partial oxidation-based approach to the synthesis of gold-magnetite hybrid nanostructures. Sci Rep 2024; 14:7352. [PMID: 38548867 PMCID: PMC10978920 DOI: 10.1038/s41598-024-58145-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Accepted: 03/26/2024] [Indexed: 04/01/2024] Open
Abstract
Hybrid nanostructures composed of gold and magnetite are of singular interest because they allow the integration of plasmonic and magnetic properties in a single object. Due to this feature, their application has been proposed to perform various functions. The methods usually employed to prepare these particular kinds of nanostructures follow organic phase routes, whereas synthetic methodologies that employ more sustainable solvents have been much less explored. In this work, an environmentally friendly approach for the synthesis of gold-magnetite hybrid nanostructures in aqueous media is proposed. This approach relies on the partial oxidation of the Fe(II) precursor using hydrogen peroxide as the oxidizing agent in the presence of preformed gold nanoparticles dispersed in the reaction medium. The methodology used led to the formation of magnetite nanoparticles with a good stoichiometry and a median size of 30 nm. Furthermore, in the presence of gold nanoparticles in the reaction medium, the formation of gold-magnetite hybrid nanostructures is produced as a consequence of the heterogeneous nucleation of the iron oxide phase on the surface of the gold nanoparticles that act as seeds. The approach reported broadens the possibility of synthesizing hybrid nanostructures in aqueous media with integrated plasmonic and magnetic properties.
Collapse
Affiliation(s)
- Rocío A González Ochea
- INFIQC-UNC-CONICET, Departamento de Fisicoquímica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, 5000, Córdoba, Argentina
| | - Tamara B Benzaquén
- CITeQ (UTN-CONICET), Centro de Investigación y Tecnología Química, Maestro Marcelo López Esq. Cruz Roja Argentina, (5016ZAA), Córdoba, Argentina
| | - Ezequiel R Encina
- INFIQC-UNC-CONICET, Departamento de Fisicoquímica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, 5000, Córdoba, Argentina.
| |
Collapse
|
3
|
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.
Collapse
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
| |
Collapse
|
4
|
Becton M, Hou J, Zhao Y, Wang X. Dynamic Clustering and Scaling Behavior of Active Particles under Confinement. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:144. [PMID: 38251109 PMCID: PMC10819351 DOI: 10.3390/nano14020144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/05/2024] [Accepted: 01/07/2024] [Indexed: 01/23/2024]
Abstract
A systematic investigation of the dynamic clustering behavior of active particles under confinement, including the effects of both particle density and active driving force, is presented based on a hybrid coarse-grained molecular dynamics simulation. First, a series of scaling laws are derived with power relationships for the dynamic clustering time as a function of both particle density and active driving force. Notably, the average number of clusters N¯ assembled from active particles in the simulation system exhibits a scaling relationship with clustering time t described by N¯∝t-m. Simultaneously, the scaling behavior of the average cluster size S¯ is characterized by S¯∝tm. Our findings reveal the presence of up to four distinct dynamic regions concerning clustering over time, with transitions contingent upon the particle density within the system. Furthermore, as the active driving force increases, the aggregation behavior also accelerates, while an increase in density of active particles induces alterations in the dynamic procession of the system.
Collapse
Affiliation(s)
- Matthew Becton
- School of ECAM, College of Engineering, University of Georgia, Athens, GA 30602, USA; (M.B.); (J.H.)
| | - Jixin Hou
- School of ECAM, College of Engineering, University of Georgia, Athens, GA 30602, USA; (M.B.); (J.H.)
| | - Yiping Zhao
- Department of Physics and Astronomy, University of Georgia, Athens, GA 30602, USA;
| | - Xianqiao Wang
- School of ECAM, College of Engineering, University of Georgia, Athens, GA 30602, USA; (M.B.); (J.H.)
| |
Collapse
|
5
|
Cho DK, Yan B, Park SJ, Yoon YS, Lim HW, Hwang SK, Park IJ, Kim JY. Hierarchical Heterogeneous NiFe Layered Double Hydroxides for Efficient Solar-Powered Water Oxidation. ACS APPLIED MATERIALS & INTERFACES 2023; 15:43933-43941. [PMID: 37675887 DOI: 10.1021/acsami.3c10075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/08/2023]
Abstract
Highly active, stable, and low-cost oxygen evolution reaction (OER) electrocatalysts are urgently needed for the realization of large-scale industrial hydrogen production via water electrolysis. Layered double hydroxides (LDHs) stand out as one of the most promising nonprecious electrocatalysts worth pursuing. Here, a hierarchical heterogeneous Ni2+Fe3+@Ni2+Fe2+ LDH was successfully synthesized via a sequential electrodeposition technique using separate electrolytes containing iron precursors with different valence states (Fe2+, Fe3+). The underlying highly crystalline Ni2+Fe2+ LDH nanosheet array provides a large surface for the catalytically more active Ni2+Fe3+ LDH overlayer with low crystallinity. The resulting Ni2+Fe3+@Ni2+Fe2+ LDH demonstrates excellent OER activity with overpotentials of 218 and 265 mV to reach current densities of 10 and 100 mA cm-2, respectively, as well as good long-term stability for 30 h even at a high current density of 500 mA cm-2. In an overall water splitting, an electrolyzer using an electrocatalyst of Sn4P3/CoP2 as a cathode requires only a cell voltage of 1.55 V at 10 mA cm-2. Furthermore, the solar-powered overall water splitting system consisting of our electrolyzer and a perovskite/Si tandem solar cell exhibits a high solar-to-hydrogen conversion efficiency of 15.3%.
Collapse
Affiliation(s)
- Deok Ki Cho
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Bingyi Yan
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
- SNU Materials Education/Research Division for Creative Global Leaders, Seoul National University, Seoul 08826, Republic of Korea
| | - So Jeong Park
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Young Seon Yoon
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyun Woo Lim
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Sun Kyung Hwang
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
| | - Ik Jae Park
- Department of Applied Physics Engineering, Sookmyung Women's University, Yongsan-gu, Seoul 04310, Republic of Korea
| | - Jin Young Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul 08826, Republic of Korea
- Research Institute of Advanced Materials, Seoul National University, Seoul 08826, Republic of Korea
| |
Collapse
|
6
|
Bañuelos JL, Borguet E, Brown GE, Cygan RT, DeYoreo JJ, Dove PM, Gaigeot MP, Geiger FM, Gibbs JM, Grassian VH, Ilgen AG, Jun YS, Kabengi N, Katz L, Kubicki JD, Lützenkirchen J, Putnis CV, Remsing RC, Rosso KM, Rother G, Sulpizi M, Villalobos M, Zhang H. Oxide- and Silicate-Water Interfaces and Their Roles in Technology and the Environment. Chem Rev 2023; 123:6413-6544. [PMID: 37186959 DOI: 10.1021/acs.chemrev.2c00130] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Interfacial reactions drive all elemental cycling on Earth and play pivotal roles in human activities such as agriculture, water purification, energy production and storage, environmental contaminant remediation, and nuclear waste repository management. The onset of the 21st century marked the beginning of a more detailed understanding of mineral aqueous interfaces enabled by advances in techniques that use tunable high-flux focused ultrafast laser and X-ray sources to provide near-atomic measurement resolution, as well as by nanofabrication approaches that enable transmission electron microscopy in a liquid cell. This leap into atomic- and nanometer-scale measurements has uncovered scale-dependent phenomena whose reaction thermodynamics, kinetics, and pathways deviate from previous observations made on larger systems. A second key advance is new experimental evidence for what scientists hypothesized but could not test previously, namely, interfacial chemical reactions are frequently driven by "anomalies" or "non-idealities" such as defects, nanoconfinement, and other nontypical chemical structures. Third, progress in computational chemistry has yielded new insights that allow a move beyond simple schematics, leading to a molecular model of these complex interfaces. In combination with surface-sensitive measurements, we have gained knowledge of the interfacial structure and dynamics, including the underlying solid surface and the immediately adjacent water and aqueous ions, enabling a better definition of what constitutes the oxide- and silicate-water interfaces. This critical review discusses how science progresses from understanding ideal solid-water interfaces to more realistic systems, focusing on accomplishments in the last 20 years and identifying challenges and future opportunities for the community to address. We anticipate that the next 20 years will focus on understanding and predicting dynamic transient and reactive structures over greater spatial and temporal ranges as well as systems of greater structural and chemical complexity. Closer collaborations of theoretical and experimental experts across disciplines will continue to be critical to achieving this great aspiration.
Collapse
Affiliation(s)
- José Leobardo Bañuelos
- Department of Physics, The University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Eric Borguet
- Department of Chemistry, Temple University, Philadelphia, Pennsylvania 19122, United States
| | - Gordon E Brown
- Department of Earth and Planetary Sciences, The Stanford Doerr School of Sustainability, Stanford University, Stanford, California 94305, United States
| | - Randall T Cygan
- Department of Soil and Crop Sciences, Texas A&M University, College Station, Texas 77843, United States
| | - James J DeYoreo
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Patricia M Dove
- Department of Geosciences, Department of Chemistry, Department of Materials Science and Engineering, Virginia Tech, Blacksburg, Virginia 24060, United States
| | - Marie-Pierre Gaigeot
- Université Paris-Saclay, Univ Evry, CNRS, LAMBE UMR8587, 91025 Evry-Courcouronnes, France
| | - Franz M Geiger
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Julianne M Gibbs
- Department of Chemistry, University of Alberta, Edmonton, Alberta T6G 2G2Canada
| | - Vicki H Grassian
- Department of Chemistry and Biochemistry, University of California, San Diego, California 92093, United States
| | - Anastasia G Ilgen
- Geochemistry Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Young-Shin Jun
- Department of Energy, Environmental & Chemical Engineering, Washington University in St. Louis, St. Louis, Missouri 63130, United States
| | - Nadine Kabengi
- Department of Geosciences, Georgia State University, Atlanta, Georgia 30303, United States
| | - Lynn Katz
- Department of Civil, Architectural and Environmental Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - James D Kubicki
- Department of Earth, Environmental & Resource Sciences, The University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Johannes Lützenkirchen
- Karlsruher Institut für Technologie (KIT), Institut für Nukleare Entsorgung─INE, Eggenstein-Leopoldshafen 76344, Germany
| | - Christine V Putnis
- Institute for Mineralogy, University of Münster, Münster D-48149, Germany
| | - Richard C Remsing
- Department of Chemistry and Chemical Biology, Rutgers University, Piscataway, New Jersey 08854, United States
| | - Kevin M Rosso
- Physical Sciences Division, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
| | - Gernot Rother
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Marialore Sulpizi
- Department of Physics, Ruhr Universität Bochum, NB6, 65, 44780, Bochum, Germany
| | - Mario Villalobos
- Departamento de Ciencias Ambientales y del Suelo, LANGEM, Instituto De Geología, Universidad Nacional Autónoma de México, Mexico City 04510, Mexico
| | - Huichun Zhang
- Department of Civil and Environmental Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| |
Collapse
|
7
|
Water-Mediated attraction between Like-charged species involved in calcium phosphate nucleation. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
|
8
|
Li D, Chen Q, Chun J, Fichthorn K, De Yoreo J, Zheng H. Nanoparticle Assembly and Oriented Attachment: Correlating Controlling Factors to the Resulting Structures. Chem Rev 2023; 123:3127-3159. [PMID: 36802554 DOI: 10.1021/acs.chemrev.2c00700] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Nanoparticle assembly and attachment are common pathways of crystal growth by which particles organize into larger scale materials with hierarchical structure and long-range order. In particular, oriented attachment (OA), which is a special type of particle assembly, has attracted great attention in recent years because of the wide range of material structures that result from this process, such as one-dimensional (1D) nanowires, two-dimensional (2D) sheets, three-dimensional (3D) branched structures, twinned crystals, defects, etc. Utilizing in situ transmission electron microscopy techniques, researchers observed orientation-specific forces that act over short distances (∼1 nm) from the particle surfaces and drive the OA process. Integrating recently developed 3D fast force mapping via atomic force microscopy with theories and simulations, researchers have resolved the near-surface solution structure, the molecular details of charge states at particle/fluid interfaces, inhomogeneity of surface charges, and dielectric/magnetic properties of particles that influence short- and long-range forces, such as electrostatic, van der Waals, hydration, and dipole-dipole forces. In this review, we discuss the fundamental principles for understanding particle assembly and attachment processes, and the controlling factors and resulting structures. We review recent progress in the field via examples of both experiments and modeling, and discuss current developments and the future outlook.
Collapse
Affiliation(s)
- Dongsheng Li
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
| | - Qian Chen
- Department of Materials Science and Engineering, University of Illinois, Urbana, Illinois 61801, United States
| | - Jaehun Chun
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
- Levich Institute and Department of Chemical Engineering, CUNY City College of New York; New York, New York 10031, United States
| | - Kristen Fichthorn
- Department of Chemical Engineering, The Pennsylvania State University; University Park, Pennsylvania 16802, United States
| | - James De Yoreo
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, Washington 99352, United States
- Department of Materials Science and Engineering, University of Washington, Seattle Washington 98195, United States
| | - Haimei Zheng
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley California 94720, United States
- Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States
| |
Collapse
|
9
|
Huang X, Suit E, Zhu J, Ge B, Gerdes F, Klinke C, Wang Z. Diffusion-Mediated Nucleation and Growth of fcc and bcc Nanocrystal Superlattices with Designable Assembly of Freestanding 3D Supercrystals. J Am Chem Soc 2023; 145:4500-4507. [PMID: 36787491 DOI: 10.1021/jacs.2c11120] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Diffusion-mediated assembly of octahedral PbS nanocrystals (NCs) in a confined antisolvent environment displays a primary burst nucleation and Ostwald ripening growth of rhombic bcc supercrystals, followed by a secondary seed-based nucleation and oriented attachment growth of triangle fcc supercrystals. As the diffusion proceeds from ethanol across a sharp interface into NC-suspended toluene, a burst nucleation of supercrystal seeds occurs, and such supercrystals are quickly developed into rhombic grains that have a bcc structure. At a critical size of 10 μm, an Ostwald ripening event appears to guide the supercrystal growth. Upon grain growth above 30 μm, the fcc supercrystals start a nucleation at two symmetrical tips of individual rhombic crystals. Such fcc supercrystals are developed with a triangle shape, and two triangles are combined with one bcc rhombus in-between to form a butterfly-like bowtie stacking structure. The fcc triangle wings grow larger at a reduction of bcc rhombus cores. As the bcc cores gradually fade, such butterfly-like bowtie crystals aggregate and undergo an oriented attachment process, leading to the formation of freestanding 3D triangle crystals that have a single fcc lattice. Analysis of experimental observations and defined diffusion parameters reveals that fast solvent diffusion and high-NC concentration promote the growth of rhombic bcc supercrystals, while slow solvent diffusion and low-NC concentration accelerate the development of triangle fcc supercrystals. Upon succeeding in designable growth of 3D fcc supercrystals, this study provides designing principles for controlled fabrication of supercrystals with desired superlattices for additional engineering and applications.
Collapse
Affiliation(s)
- Xin Huang
- Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, United States
| | - Elizabeth Suit
- Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, United States
| | - Jinlong Zhu
- Department of Physics, South University of Science and Technology, Shenzhen, Guangdong 518055, China
| | - Binghui Ge
- Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of Education, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, China
| | - Frauke Gerdes
- Institute of Physical Chemistry, University of Hamburg, 20146 Hamburg, Germany
| | - Christian Klinke
- Institute of Physics, University of Rostock, 18059 Rostock, Germany.,Department of Chemistry, Swansea University─Singleton Park, Swansea SA2 8PP, U.K
| | - Zhongwu Wang
- Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14853, United States
| |
Collapse
|
10
|
Guo M, Jones MJ, Goh R, Verma V, Guinn E, Heng JYY. The Effect of Chain Length and Conformation on the Nucleation of Glycine Homopeptides during the Crystallization Process. CRYSTAL GROWTH & DESIGN 2023; 23:1668-1675. [PMID: 36879769 PMCID: PMC9983003 DOI: 10.1021/acs.cgd.2c01229] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 01/09/2023] [Indexed: 05/14/2023]
Abstract
To explore the effect of chain length and conformation on the nucleation of peptides, the primary nucleation induction time of glycine homopeptides in pure water at different supersaturation levels under various temperatures has been determined. Nucleation data suggest that longer chains will prolong the induction time, especially for chains longer than three, where nucleation will occur over several days. In contrast, the nucleation rate increased with an increase in the supersaturation for all homopeptides. Induction time and nucleation difficulty increase at lower temperatures. However, for triglycine, the dihydrate form was produced with an unfolded peptide conformation (pPII) at low temperature. The interfacial energy and activation Gibbs energy of this dihydrate form are both lower than those at high temperature, while the induction time is longer, indicating the classical nucleation theory is not suitable to explain the nucleation phenomenon of triglycine dihydrate. Moreover, gelation and liquid-liquid separation of longer chain glycine homopeptides were observed, which was normally classified to nonclassical nucleation theory. This work provides insight into how the nucleation process evolves with increasing chain length and variable conformation, thereby offering a fundamental understanding of the critical peptide chain length for the classical nucleation theory and complex nucleation process for peptides.
Collapse
Affiliation(s)
- Mingxia Guo
- Department
of Chemical Engineering, Imperial
College London, South Kensington
Campus, LondonSW7 2AZ, U.K.
| | - Marie J. Jones
- Department
of Chemical Engineering, Imperial
College London, South Kensington
Campus, LondonSW7 2AZ, U.K.
| | - Racheal Goh
- Department
of Chemical Engineering, Imperial
College London, South Kensington
Campus, LondonSW7 2AZ, U.K.
| | - Vivek Verma
- Department
of Chemical Engineering, Imperial
College London, South Kensington
Campus, LondonSW7 2AZ, U.K.
| | - Emily Guinn
- Synthetic
Molecule Design and Development, Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana46221, United States
| | - Jerry Y. Y. Heng
- Department
of Chemical Engineering, Imperial
College London, South Kensington
Campus, LondonSW7 2AZ, U.K.
- Institute
for Molecular Science and Engineering, Imperial
College London, South Kensington
Campus, LondonSW7 2AZ, U.K.
| |
Collapse
|
11
|
Bertuit E, Menguy N, Wilhelm C, Rollet AL, Abou-Hassan A. Angular orientation between the cores of iron oxide nanoclusters controls their magneto-optical properties and magnetic heating functions. Commun Chem 2022; 5:164. [PMID: 36698002 PMCID: PMC9814453 DOI: 10.1038/s42004-022-00787-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 11/24/2022] [Indexed: 12/03/2022] Open
Abstract
Oriented attachment of nanobricks into hierarchical multi-scale structures such as inorganic nanoclusters is one of the crystallization mechanisms that has revolutionized the field of nano and materials science. Herein, we show that the mosaicity, which measures the misalignment of crystal plane orientation between the nanobricks, governs their magneto-optical properties as well as the magnetic heating functions of iron oxide nanoclusters. Thanks to high-temperature and time-resolved millifluidic, we were able to isolate and characterize (structure, properties, function) the different intermediates involved in the diverse steps of the nanocluster's formation, to propose a detailed dynamical mechanism of their formation and establish a clear correlation between changes in mosaicity at the nanoscale and their resulting physical properties. Finally, we demonstrate that their magneto-optical properties can be described using simple molecular theories.
Collapse
Affiliation(s)
- Enzo Bertuit
- grid.462844.80000 0001 2308 1657Sorbonne Université, UMR CNRS 8234, PHysico-chimie des Électrolytes et Nanosystèmes InterfaciauX (PHENIX), F-75005 Paris, France
| | - Nicolas Menguy
- grid.462844.80000 0001 2308 1657Sorbonne Université, UMR 7590 CNRS—Sorbonne Université—IRD-MNHN, Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Case 115, 4 Place Jussieu, 75252 Cedex 5 Paris, France
| | - Claire Wilhelm
- grid.418596.70000 0004 0639 6384PSL Research University—Sorbonne Université—CNRS, UMR168, Laboratoire Physico Chimie Curie, Institut Curie, 75005 Paris, France
| | - Anne-Laure Rollet
- grid.462844.80000 0001 2308 1657Sorbonne Université, UMR CNRS 8234, PHysico-chimie des Électrolytes et Nanosystèmes InterfaciauX (PHENIX), F-75005 Paris, France
| | - Ali Abou-Hassan
- grid.462844.80000 0001 2308 1657Sorbonne Université, UMR CNRS 8234, PHysico-chimie des Électrolytes et Nanosystèmes InterfaciauX (PHENIX), F-75005 Paris, France ,grid.440891.00000 0001 1931 4817Institut Universitaire de France (IUF), 75231 Cedex 05 Paris, France
| |
Collapse
|
12
|
Nahi O, Kulak AN, Zhang S, He X, Aslam Z, Ilett MA, Ford IJ, Darkins R, Meldrum FC. Polyamines Promote Aragonite Nucleation and Generate Biomimetic Structures. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 10:e2203759. [PMID: 36403251 PMCID: PMC9811428 DOI: 10.1002/advs.202203759] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Calcium carbonate biomineralization is remarkable for the ability of organisms to produce calcite or aragonite with perfect fidelity, where this is commonly attributed to specific anionic biomacromolecules. However, it is proven difficult to mimic this behavior using synthetic or biogenic anionic organic molecules. Here, it is shown that cationic polyamines ranging from small molecules to large polyelectrolytes can exert exceptional control over calcium carbonate polymorph, promoting aragonite nucleation at extremely low concentrations but suppressing its growth at high concentrations, such that calcite or vaterite form. The aragonite crystals form via particle assembly, giving nanoparticulate structures analogous to biogenic aragonite, and subsequent growth yields stacked aragonite platelets comparable to structures seen in developing nacre. This mechanism of polymorph selectivity is captured in a theoretical model based on these competing nucleation and growth effects and is completely distinct from the activity of magnesium ions, which generate aragonite by inhibiting calcite. Profiting from these contrasting mechanisms, it is then demonstrated that polyamines and magnesium ions can be combined to give unprecedented control over aragonite formation. These results give insight into calcite/aragonite polymorphism and raise the possibility that organisms may exploit both amine-rich organic molecules and magnesium ions in controlling calcium carbonate polymorph.
Collapse
Affiliation(s)
- Ouassef Nahi
- School of ChemistryUniversity of LeedsWoodhouse LaneLeedsLS2 9JTUK
| | | | - Shuheng Zhang
- School of ChemistryUniversity of LeedsWoodhouse LaneLeedsLS2 9JTUK
| | - Xuefeng He
- School of ChemistryUniversity of LeedsWoodhouse LaneLeedsLS2 9JTUK
| | - Zabeada Aslam
- School of Chemical and Process EngineeringUniversity of LeedsWoodhouse LaneLeedsLS2 9JTUK
| | - Martha A. Ilett
- School of Chemical and Process EngineeringUniversity of LeedsWoodhouse LaneLeedsLS2 9JTUK
| | - Ian J. Ford
- London Centre for NanotechnologyUniversity College London17–19 Gordon StreetLondonWC1H 0AHUK
| | - Robert Darkins
- London Centre for NanotechnologyUniversity College London17–19 Gordon StreetLondonWC1H 0AHUK
| | - Fiona C. Meldrum
- School of ChemistryUniversity of LeedsWoodhouse LaneLeedsLS2 9JTUK
| |
Collapse
|
13
|
Afshani J, Perez Mellor A, Bürgi T, Hagemann H. Crystallization of SrAl 12O 19 Nanocrystals from Amorphous Submicrometer Particles. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2022; 126:19336-19345. [PMID: 36425001 PMCID: PMC9677969 DOI: 10.1021/acs.jpcc.2c04284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 09/30/2022] [Indexed: 06/16/2023]
Abstract
Advanced instrumentation and modern analysis tools such as transmission electron microscopy (TEM) have led to phenomenal progress in understanding crystallization, in particular from solution, which is a prerequisite for the design-based preparation of a target crystal. Nevertheless, little has been understood about the crystallization pathway under high-temperature annealing (HTA) conditions. Metal oxide crystals are prominent materials that are usually obtained via HTA. Despite the widespread application of hydro-/solvothermal methods on the laboratory scale, HTA is the preferred method in many industries for the mass production of metal oxide crystals. However, poor control over the morphology and grain sizes of these crystals under extreme HTA conditions limits their applications. Here, applying ex-situ TEM, the transformation of a single amorphous spherical submicrometer precursor particle of SrAl12O19 (SA6) at 1150 °C toward a nanosized thermodynamically favored hexagonal crystal is explored. It is illustrated in real space, step by step, how both kinetic and thermodynamic factors contribute to this faceting and morphology evolution. These results demonstrate a nonclassical nucleation and growth process consisting of densification, crystallite domain formation, oriented attachment, surface nucleation, 2-dimensional (2D) growth, and surface diffusion of the atoms to eventually result in the formation of a hexagonal platelet crystal. The TEM images further delineate a parent crystal driving the crystal lattice and morphological orientation of a network of interconnected platelets.
Collapse
Affiliation(s)
- Jafar Afshani
- Département de Chimie Physique, Université de Genève, Quai Ernest-Ansermet 30, Genève1211, Switzerland
| | - Ariel Perez Mellor
- Département de Chimie Physique, Université de Genève, Quai Ernest-Ansermet 30, Genève1211, Switzerland
| | - Thomas Bürgi
- Département de Chimie Physique, Université de Genève, Quai Ernest-Ansermet 30, Genève1211, Switzerland
| | - Hans Hagemann
- Département de Chimie Physique, Université de Genève, Quai Ernest-Ansermet 30, Genève1211, Switzerland
| |
Collapse
|
14
|
Eren ED, Moradi MA, van Rijt MMJ, Oosterlaken BM, Friedrich H, de With G. From binary AB to ternary ABC supraparticles. MATERIALS HORIZONS 2022; 9:2572-2580. [PMID: 35894556 DOI: 10.1039/d2mh00574c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Control over the assembly and morphology of nanoscale functional building blocks is of great importance to hybrid and porous nanomaterials. In this paper, by combining different types of spherical nanoparticles with different size ratios in a hierarchical assembly process which allows us to control the final structure of multi-component assemblies, we discuss self-assembly of an extensive range of supraparticles, labelled as AB particles, and an extension to novel ternary particles, labelled as ABC particles. For supraparticles, the organization of small nanoparticles is known to be inherently related to the size ratio of building blocks. Therefore, we studied the formation of supraparticles prepared by colloidal self-assembly using small silica nanoparticles (SiO2 NPs) attached on the surface of large polystyrene latex nanoparticles (PSL NPs) with a wide size ratio range for complete and partial coverage, by controlling the electrostatic interactions between the organic and inorganic nanoparticles and their concentrations. In this way hierarchically ordered, stable supraparticles, either fully covered or partially covered, were realized. The partially covered, stable AB supraparticles offer the option to create ABC supraparticles of which the fully covered shell contains two different types of nanoparticles. This has been experimentally confirmed using iron oxide (Fe3O4) nanoparticles together with silica nanoparticles as shell particles on polystyrene core particles. Cryo-electron tomography was used to visualize the AB binary and ABC ternary supraparticles and to determine the three-dimensional structural characteristics of supraparticles formed under different conditions.
Collapse
Affiliation(s)
- E Deniz Eren
- Laboratory of Physical Chemistry and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, The Netherlands.
| | - Mohammad-Amin Moradi
- Laboratory of Physical Chemistry and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, The Netherlands.
| | - Mark M J van Rijt
- Laboratory of Physical Chemistry and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, The Netherlands.
| | - Bernette M Oosterlaken
- Laboratory of Physical Chemistry and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, The Netherlands.
| | - Heiner Friedrich
- Laboratory of Physical Chemistry and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, The Netherlands.
- Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - Gijsbertus de With
- Laboratory of Physical Chemistry and Center for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, Eindhoven, The Netherlands.
| |
Collapse
|
15
|
The coprecipitation formation study of iron oxide nanoparticles with the assist of a gas/liquid mixed phase fluidic reactor. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
16
|
Wagner A, Ezersky V, Maria R, Upcher A, Lemcoff T, Aflalo ED, Lubin Y, Palmer BA. The Non-Classical Crystallization Mechanism of a Composite Biogenic Guanine Crystal. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2202242. [PMID: 35608485 DOI: 10.1002/adma.202202242] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 05/10/2022] [Indexed: 06/15/2023]
Abstract
Spectacular colors and visual phenomena in animals are produced by light interference from highly reflective guanine crystals. Little is known about how organisms regulate crystal morphology to tune the optics of these systems. By following guanine crystal formation in developing spiders, a crystallization mechanism is elucidated. Guanine crystallization is a "non-classical," multistep process involving a progressive ordering of states. Crystallization begins with nucleation of partially ordered nanogranules from a disordered precursor phase. Growth proceeds by orientated attachment of the nanogranules into platelets which coalesce into single crystals, via progressive relaxation of structural defects. Despite their prismatic morphology, the platelet texture is retained in the final crystals, which are composites of crystal lamellae and interlamellar sheets. Interactions between the macromolecular sheets and the planar face of guanine appear to direct nucleation, favoring platelet formation. These findings provide insights on how organisms control the morphology and optical properties of molecular crystals.
Collapse
Affiliation(s)
- Avital Wagner
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheba, 8410501, Israel
| | - Vladimir Ezersky
- Ilse Katz Institute for Nanoscale Science & Technology, Ben-Gurion University of the Negev, Beer-Sheba, 8410501, Israel
| | - Raquel Maria
- Ilse Katz Institute for Nanoscale Science & Technology, Ben-Gurion University of the Negev, Beer-Sheba, 8410501, Israel
| | - Alexander Upcher
- Ilse Katz Institute for Nanoscale Science & Technology, Ben-Gurion University of the Negev, Beer-Sheba, 8410501, Israel
| | - Tali Lemcoff
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheba, 8410501, Israel
| | - Eliahu D Aflalo
- Department of Life Sciences, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
- Department of Life Sciences, Achva Academic College, Mobile Post Shikmim, Beer-Sheba, 79800, Israel
| | - Yael Lubin
- Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben-Gurion, Southern Israel, 8499000, Israel
| | - Benjamin A Palmer
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheba, 8410501, Israel
| |
Collapse
|
17
|
Pellens N, Doppelhammer N, Asselman K, Thijs B, Jakoby B, Reichel EK, Taulelle F, Martens J, Breynaert E, Kirschhock CEA. A zeolite crystallisation model confirmed by in situ observation. Faraday Discuss 2022; 235:162-182. [PMID: 35660805 DOI: 10.1039/d1fd00093d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Probing nucleation and growth of porous crystals at a molecular level remains a cumbersome experimental endeavour due to the complexity of the synthesis media involved. In particular, the study of zeolite formation is hindered as these typically form in multiphasic synthesis media, which restricts experimental access to crystallisation processes. Zeolite formation from single phasic hydrated silicate ionic liquids (HSiL) opens new possibilities. In this work, HSiL zeolite crystallisation is investigated in situ using a specifically designed conductivity measurement set-up yielding access to crystallisation kinetics. Based on the conductivity data and final yields, a crystallisation model explaining the results based on a surface growth mechanism was derived. The excellent agreement between experiment and theory indicates zeolite crystallisation from highly ionic media proceeds via a multi-step mechanism, involving an initial reversible surface condensation of a growth unit, followed by incorporation of that unit into the growing crystal. The first step is governed by the liquid phase concentration and surface energy, while the final step shows a correlation to the mobility of the cation involved.
Collapse
Affiliation(s)
| | - Nikolaus Doppelhammer
- KU Leuven, COK-KAT, Leuven, Belgium. .,JKU Linz, Institut für Mikroelektronik und Mikrosensorik, Linz, Austria
| | | | | | - Bernhard Jakoby
- JKU Linz, Institut für Mikroelektronik und Mikrosensorik, Linz, Austria
| | - Erwin K Reichel
- JKU Linz, Institut für Mikroelektronik und Mikrosensorik, Linz, Austria
| | - Francis Taulelle
- KU Leuven, COK-KAT, Leuven, Belgium. .,KU Leuven, NMRCoRe, Leuven, Belgium
| | - Johan Martens
- KU Leuven, COK-KAT, Leuven, Belgium. .,KU Leuven, NMRCoRe, Leuven, Belgium
| | - Eric Breynaert
- KU Leuven, COK-KAT, Leuven, Belgium. .,KU Leuven, NMRCoRe, Leuven, Belgium
| | | |
Collapse
|
18
|
Gebauer D, Gale JD, Cölfen H. Crystal Nucleation and Growth of Inorganic Ionic Materials from Aqueous Solution: Selected Recent Developments, and Implications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2107735. [PMID: 35678091 DOI: 10.1002/smll.202107735] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/07/2022] [Indexed: 05/27/2023]
Abstract
In this review article, selected, latest theoretical, and experimental developments in the field of nucleation and crystal growth of inorganic materials from aqueous solution are highlighted, with a focus on literature after 2015 and on non-classical pathways. A key point is to emphasize the so far underappreciated role of water and solvent entropy in crystallization at all stages from solution speciation through to the final crystal. While drawing on examples from current inorganic materials where non-classical behavior has been proposed, the potential of these approaches to be adapted to a wide-range of systems is also discussed, while considering the broader implications of the current re-assessment of pathways for crystallization. Various techniques that are suitable for the exploration of crystallization pathways in aqueous solution, from nucleation to crystal growth are summarized, and a flow chart for the assignment of specific theories based on experimental observations is proposed.
Collapse
Affiliation(s)
- Denis Gebauer
- Leibniz University Hannover, Institute of Inorganic Chemistry, Callinstr. 9, 30167, Hannover, Germany
| | - Julian D Gale
- Curtin Institute for Computation/The Institute for Geoscience Research (TiGER), School of Molecular and Life Sciences, Curtin University, PO Box U1987, Perth, Western Australia, 6845, Australia
| | - Helmut Cölfen
- University of Konstanz, Physical Chemistry, Universitätsstr. 10, 78465, Konstanz, Germany
| |
Collapse
|
19
|
The Role of Process-Directing Agents on Enamel Lesion Remineralization: Fluoride Boosters. Biomimetics (Basel) 2022; 7:biomimetics7020054. [PMID: 35645181 PMCID: PMC9149830 DOI: 10.3390/biomimetics7020054] [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: 03/11/2022] [Revised: 04/17/2022] [Accepted: 04/26/2022] [Indexed: 11/17/2022] Open
Abstract
The aim of this study was to investigate the effects of two process-directing agents (polyaspartic acid and osteopontin) used in a polymer-induced liquid-precursor (PILP) process on the remineralization of bacteria-induced enamel demineralization. Enamel demineralization lesions (depths of about 180–200 µm) were created and exposed to Streptococcus mutans, cultured with a 10% sucrose solution for 21 days, and remineralized using a PILP process (pH = 7.4, 14 days) with a calcium phosphate solution containing either polyaspartic acid or osteopontin in the presence or absence of fluoride (0.5 ppm). The specimens were examined under scanning electron microscopy. The fluoride was successfully incorporated into the PILP remineralization process for both polyaspartic acid and osteopontin. When the fluoride was added to the PILP remineralization solution, there was more uniform remineralization throughout the lesion than with either polyaspartic acid or osteopontin alone. However, in the absence of these process-directing agents, fluoride alone showed less remineralization with the formation of a predominantly surface-only layer. The PILP remineralization process relies on the ability of process-directing agents to stabilize calcium phosphate ions and holds promise for enamel lesion remineralization, and these agents, in the presence of fluoride, seem to play an important role as a booster or supplement in the continuation of remineralization by reducing the mineral gains at the surface layer.
Collapse
|
20
|
Parmar D, Niu Z, Liang Y, Dai H, Rimer JD. Manipulation of amorphous precursors to enhance zeolite nucleation. Faraday Discuss 2022; 235:322-342. [PMID: 35411361 DOI: 10.1039/d1fd00096a] [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
Crystallization in media comprised of amorphous precursors is becoming a more common phenomenon for numerous synthetic, biological, and natural materials that grow by a combination of classical and nonclassical pathways. Amorphous phases can exhibit a wide range of physicochemical properties that may evolve during the course of nucleation and crystal growth. This creates challenges for establishing causal relationships between amorphous precursor properties and their effect(s) on the selection of mechanistic pathways of crystallization and ultimately the properties of the crystalline product. In this study, we examine ways to manipulate the composition and colloidal stability of amorphous (alumino)silicate precursors that are prevalent in nanoporous zeolite syntheses. Changes in the amorphous precursor properties are evaluated on the basis of their ability to enhance rates of crystal formation. Here, we use fumed silica as the primary silicon source and examine the effects of infusing the source or growth medium with additional alkali metal, which serves as an inorganic structure-directing agent to facilitate the formation of porous crystal structures. We also assess the impact of adding a polymer additive, which reduces the colloidal stability of precursors, wherein we posit that the confined pockets of solution within the interstitial spaces of the precursor aggregates play an important role in regulating the rate of zeolite crystallization. Three commercially relevant zeolites (mordenite, SSZ-13, and ZSM-5) were selected for this study based on their diverse frameworks and methods of preparation. Our findings reveal that alkali infusion significantly reduces the crystallization times for mordenite and SSZ-13, but has little impact on ZSM-5 synthesis. Conversely, we find that polymer addition markedly enhanced the rates of crystallization among all three zeolites, suggesting that this method may be a general approach to reduce zeolite synthesis times. Given the relatively high costs associated with commercial zeolite production, identifying new methods to improve the efficiency of hydrothermal syntheses can have significant practical implications beyond the fundamental benefits of developing new routes to tailor nonclassical crystallization.
Collapse
Affiliation(s)
- Deependra Parmar
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA.
| | - Zhiyin Niu
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA.
| | - Yu Liang
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA.
| | - Heng Dai
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA.
| | - Jeffrey D Rimer
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, 77204, USA.
| |
Collapse
|
21
|
Qin Z, You Z, Bozhilov KN, Kolev SK, Yang W, Shen Y, Jin X, Gilson JP, Mintova S, Vayssilov GN, Valtchev V. Dissolution Behavior and Varied Mesoporosity of Zeolites by NH 4 F Etching. Chemistry 2022; 28:e202104339. [PMID: 35218101 DOI: 10.1002/chem.202104339] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2021] [Indexed: 11/09/2022]
Abstract
The mesopores formation in zeolite crystals has long been considered to occur through the stochastic hydrolysis and removal of framework atoms. Here, we investigate the NH4 F etching of representative small, medium, and large pore zeolites and show that the zeolite dissolution behavior, therefore the mesopore formation probability, is dominated by zeolite architecture at both nano- and sub-nano scales. At the nano-scale, the hidden mosaics of zeolite structure predetermine the spatio-temporal dissolution of the framework, hence the size, shape, location, and orientation of the mesopores. At the sub-nano scale, the intrinsic micropore size and connectivity jointly determine the diffusivity of reactant and dissolved products. As a result, the dissolution propensity varies from removing small framework fragments to consuming nanodomains and up to full digestion of the outmost part of zeolite crystals. The new knowledge will lead to new understanding of zeolite dissolution behavior and new adapted strategies for tailoring hierarchical zeolites.
Collapse
Affiliation(s)
- Zhengxing Qin
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum East China-Qingdao Campus, No. 66, West Changjiang Road, Huangdao District, P. R. China
| | - Zhenchao You
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum East China-Qingdao Campus, No. 66, West Changjiang Road, Huangdao District, P. R. China
| | - Krassimir N Bozhilov
- Central Facility for Advanced Microscopy and Microanalysis, University of California, Riverside 900 University Avenue, Riverside, CA 92521, USA
| | - Stefan K Kolev
- "E. Djakov"Institute of Electronics, Bulgarian Academy of Sciences, 72 Tzarigradsko Chausee Blvd., 1784, Sofia, Bulgaria
| | - Wei Yang
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum East China-Qingdao Campus, No. 66, West Changjiang Road, Huangdao District, P. R. China
| | - Yanfeng Shen
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum East China-Qingdao Campus, No. 66, West Changjiang Road, Huangdao District, P. R. China
| | - Xin Jin
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum East China-Qingdao Campus, No. 66, West Changjiang Road, Huangdao District, P. R. China
| | - Jean-Pierre Gilson
- Laboratoire Catalyse et Spectrochimie, Normandie Univ, ENSICAEN, UNICAEN, CNRS, 6 Bd Maréchal Juin, 14000, Caen, France
| | - Svetlana Mintova
- State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum East China-Qingdao Campus, No. 66, West Changjiang Road, Huangdao District, P. R. China.,Laboratoire Catalyse et Spectrochimie, Normandie Univ, ENSICAEN, UNICAEN, CNRS, 6 Bd Maréchal Juin, 14000, Caen, France
| | - Georgi N Vayssilov
- Faculty of Chemistry and Pharmacy, University of Sofia, 1126, Sofia, Bulgaria
| | - Valentin Valtchev
- Laboratoire Catalyse et Spectrochimie, Normandie Univ, ENSICAEN, UNICAEN, CNRS, 6 Bd Maréchal Juin, 14000, Caen, France.,Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, 266101, P. R. China
| |
Collapse
|
22
|
Particle-based hematite crystallization is invariant to initial particle morphology. Proc Natl Acad Sci U S A 2022; 119:e2112679119. [PMID: 35275793 PMCID: PMC8931245 DOI: 10.1073/pnas.2112679119] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Many crystallization processes occurring in nature produce highly ordered hierarchical architectures. Their formation cannot be explained using classical models of monomer-by-monomer growth. One of the possible pathways involves crystallization through the attachment of oriented nanocrystals. Thus, it requires detailed understanding of the mechanism of particle dynamics that leads to their precise crystallographic alignment along specific faces. In this study, we discover a particle-morphology–independent oriented attachment mechanism for hematite nanocrystals. Independent of crystal morphology, particles always align along the [001] direction driven by aligning interactions between (001) faces and repulsive interactions between other pairs of hematite faces. These results highlight that strong face specificity along one crystallographic direction can render oriented attachment to be independent of initial particle morphology. Understanding the mechanism of particle-based crystallization is a formidable problem due to the complexity of macroscopic and interfacial forces driving particle dynamics. The oriented attachment (OA) pathway presents a particularly challenging phenomenon because it occurs only under select conditions and involves a precise crystallographic alignment of particle faces often from distances of several nanometers. Despite the progress made in recent years in understanding the driving forces for particle face selectivity and alignment, questions about the competition between ion-by-ion crystallization, near-surface nucleation, and OA remain. This study examines hydrothermal conditions leading to apparent OA for hematite using three initial particle morphologies with various exposed faces. All three particle types formed single-crystal or twinned one-dimensional (1D) chain-like structures along the [001] direction driven by the attractive interactions between (001) faces and repulsive interactions between other pairs of hematite faces. Moreover, simulations of the potential of mean force for iron species and scanning transmission electron microscopy (S/TEM) imaging confirm that the formation of 1D chains is a result of the attachment of independently nucleated particles and does not follow the near-surface nucleation or ion-by-ion crystallization pathways. These results highlight that strong face specificity along one crystallographic direction can render OA to be independent of initial particle morphology.
Collapse
|
23
|
Surface-ligand-induced crystallographic disorder-order transition in oriented attachment for the tuneable assembly of mesocrystals. Nat Commun 2022; 13:1144. [PMID: 35241688 PMCID: PMC8894404 DOI: 10.1038/s41467-022-28830-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 02/10/2022] [Indexed: 11/09/2022] Open
Abstract
In the crystallisation of nanomaterials, an assembly-based mechanism termed ‘oriented attachment’ (OA) has recently been recognised as an alternative mechanism of crystal growth that cannot be explained by the classical theory. However, attachment alignment during OA is not currently tuneable because its mechanism is poorly understood. Here, we identify the crystallographic disorder-order transitions in the OA of magnetite (Fe3O4) mesocrystals depending on the types of organic surface ligands on the building blocks, which produce different grain structures. We find that alignment variations induced by different surface ligands are guided by surface energy anisotropy reduction and surface deformation. Further, we determine the effects of alignment-dependent magnetic interactions between building blocks on the global magnetic properties of mesocrystals and their chains. These results revisit the driving force of OA and provide an approach for chemically controlling the crystallographic order in colloidal nanocrystalline materials directly related to grain engineering. Oriented attachment is a non-classical growth mechanism of nanomaterials that can lead to tunable properties and functionalities. Here the authors show that the crystallographic alignment between magnetite mesocrystal building-blocks can be tuned by the surface ligands, influencing the resulting magnetic properties.
Collapse
|
24
|
Freitas AP, Ramamoorthy RK, Durelle M, Larquet E, Maurin I, Testard F, Chevallard C, Gacoin T, Carriere D. Crystallization within Intermediate Amorphous Phases Determines the Polycrystallinity of Nanoparticles from Coprecipitation. NANO LETTERS 2022; 22:29-35. [PMID: 34928165 DOI: 10.1021/acs.nanolett.1c02859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Intense research on nanocrystals synthesized in solution is motivated by their original physical properties, which are determined by their sizes and shapes on various scales. However, morphology control on the nanoscale is limited by our understanding of crystallization, which is challenged by the now well-established prevalence of noncrystalline intermediates. In particular, the impact of such intermediates on the final sizes and crystal quality remains unclear because the characterization of their evolution on the nanometer and millisecond scales with nonperturbative analyses has remained a challenge. Here we use in situ X-ray scattering to show that the nucleation and growth of YVO4:Eu nanocrystals is spatially restrained within amorphous, nanometer-scaled intermediates. The reactivity and size of these amorphous intermediates determine (i) the mono versus polycrystalline character of final crystals and (ii) the size of final crystals. This implies that designing amorphous intermediates themselves that form in <6 ms is one of the keys to controlled bottom-up syntheses of optimized nanoparticles.
Collapse
Affiliation(s)
- Alexy P Freitas
- Université Paris-Saclay, CNRS, CEA, NIMBE, LIONS, 91 191 Gif-sur-Yvette, France
- Laboratoire de Physique de la Matière Condensée (PMC), CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, 91 120 Palaiseau, France
| | | | - Maxime Durelle
- Université Paris-Saclay, CNRS, CEA, NIMBE, LIONS, 91 191 Gif-sur-Yvette, France
| | - Eric Larquet
- Laboratoire de Physique de la Matière Condensée (PMC), CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, 91 120 Palaiseau, France
| | - Isabelle Maurin
- Laboratoire de Physique de la Matière Condensée (PMC), CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, 91 120 Palaiseau, France
| | - Fabienne Testard
- Université Paris-Saclay, CNRS, CEA, NIMBE, LIONS, 91 191 Gif-sur-Yvette, France
| | - Corinne Chevallard
- Université Paris-Saclay, CNRS, CEA, NIMBE, LIONS, 91 191 Gif-sur-Yvette, France
| | - Thierry Gacoin
- Laboratoire de Physique de la Matière Condensée (PMC), CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, 91 120 Palaiseau, France
| | - David Carriere
- Université Paris-Saclay, CNRS, CEA, NIMBE, LIONS, 91 191 Gif-sur-Yvette, France
| |
Collapse
|
25
|
Lei C, Wang YH, Zhuang PX, Li YT, Wan QQ, Ma YX, Tay FR, Niu LN. Applications of Cryogenic Electron Microscopy in Biomineralization Research. J Dent Res 2021; 101:505-514. [PMID: 34918556 DOI: 10.1177/00220345211053814] [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: 11/17/2022] Open
Abstract
Biological mineralization is a natural process manifested by living organisms in which inorganic minerals crystallize under the scrupulous control of biomolecules, producing hierarchical organic-inorganic composite structures with physical properties and design that galvanize even the most ardent structural engineer and architect. Understanding the mechanisms that control the formation of biominerals is challenging in the biomimetic engineering of hard tissues. In this regard, the contribution of cryogenic electron microscopy (cryo-EM) has been nothing short of phenomenal. By preserving materials in their native hydrated status and reducing damage caused by ion beam radiation, cryo-EM outperforms conventional transmission electron microscopy in its ability to directly observe the morphologic evolution of mineral precursor phases at different stages of biomineralization with nanoscale spatial resolution and subsecond temporal resolution in 2 or 3 dimensions. In the present review, the development and applications of cryo-EM are discussed to support the use of this powerful technique in dental research. Because of the rapid development of cryogenic sample preparation techniques, direct electron detection, and image-processing algorithms, the last decade has witnessed an exponential increase in the use of cryo-EM in structural biology and materials research. By amalgamating with other analytic techniques, cryo-EM may be used for qualitative and quantitative analyses of the kinetics and thermodynamic mechanisms in which organic macromolecules participate in the transformation of mineral precursors from their original liquid state to amorphous and ultimately crystalline phases. The present review concentrates on the biomineralization of calcium phosphate mineral phases, while that of calcium carbonate, silica, and magnetite is only briefly mentioned. Bioinspired organic matrix-mediated inorganic crystallization strategies are discussed from the perspective of tissue regeneration engineering.
Collapse
Affiliation(s)
- C Lei
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, the Fourth Military Medical University, Xi'an, China
| | - Y H Wang
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, the Fourth Military Medical University, Xi'an, China.,Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an, China
| | - P X Zhuang
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, the Fourth Military Medical University, Xi'an, China
| | - Y T Li
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, the Fourth Military Medical University, Xi'an, China
| | - Q Q Wan
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, the Fourth Military Medical University, Xi'an, China
| | - Y X Ma
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, the Fourth Military Medical University, Xi'an, China
| | - F R Tay
- The Graduate School, Augusta University, Augusta, GA, USA
| | - L N Niu
- State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Stomatology, School of Stomatology, the Fourth Military Medical University, Xi'an, China
| |
Collapse
|
26
|
Abstract
Colloidal self-assembly refers to a solution-processed assembly of nanometer-/micrometer-sized, well-dispersed particles into secondary structures, whose collective properties are controlled by not only nanoparticle property but also the superstructure symmetry, orientation, phase, and dimension. This combination of characteristics makes colloidal superstructures highly susceptible to remote stimuli or local environmental changes, representing a prominent platform for developing stimuli-responsive materials and smart devices. Chemists are achieving even more delicate control over their active responses to various practical stimuli, setting the stage ready for fully exploiting the potential of this unique set of materials. This review addresses the assembly of colloids into stimuli-responsive or smart nanostructured materials. We first delineate the colloidal self-assembly driven by forces of different length scales. A set of concepts and equations are outlined for controlling the colloidal crystal growth, appreciating the importance of particle connectivity in creating responsive superstructures. We then present working mechanisms and practical strategies for engineering smart colloidal assemblies. The concepts underpinning separation and connectivity control are systematically introduced, allowing active tuning and precise prediction of the colloidal crystal properties in response to external stimuli. Various exciting applications of these unique materials are summarized with a specific focus on the structure-property correlation in smart materials and functional devices. We conclude this review with a summary of existing challenges in colloidal self-assembly of smart materials and provide a perspective on their further advances to the next generation.
Collapse
Affiliation(s)
- Zhiwei Li
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Qingsong Fan
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Yadong Yin
- Department of Chemistry, University of California, Riverside, California 92521, United States
| |
Collapse
|
27
|
Mol A, Meuwissen DJM, Pruim SD, Zhou C, van Vught V, Klok JBM, Buisman CJN, van der Weijden RD. Novel Agglomeration Strategy for Elemental Sulfur Produced during Biological Gas Desulfurization. ACS OMEGA 2021; 6:27913-27923. [PMID: 34722991 PMCID: PMC8554788 DOI: 10.1021/acsomega.1c03701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 09/28/2021] [Indexed: 06/13/2023]
Abstract
This article presents a novel crystal agglomeration strategy for elemental sulfur (S) produced during biological desulfurization (BD). A key element is the nucleophilic dissolution of S by sulfide (HS-) to polysulfides (S x 2-), which was enhanced by a sulfide-rich, anoxic reactor. This study demonstrates that with enhanced S x 2- formation, crystal agglomerates are formed with a uniform size (14.7 ± 3.1 μm). In contrast, with minimal S x 2- formation, particle size fluctuates markedly (5.6 ± 5.9 μm) due to the presence of agglomerates and single crystals. Microscopic analysis showed that the uniformly sized agglomerates had an irregular structure, whereas the loose particles and agglomerates were more defined and bipyramidal. The irregular agglomerates are explained by dissolution of S by (poly)sulfides, which likely changed the crystal surface structure and disrupted crystal growth. Furthermore, S from S x 2- appeared to form at least 5× faster than from HS- based on the average S x 2- chain length of x ≈ 5, thereby stimulating particle agglomeration. In addition, microscopy suggested that S crystal growth proceeded via amorphous S globules. Our findings imply that the crystallization product is controlled by the balance between dissolution and formation of S. This new insight has a strong potential to prevent poor S settleability in BD.
Collapse
Affiliation(s)
- Annemerel
R. Mol
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
- Paqell
B.V., Reactorweg 301, 3542 AD Utrecht, The Netherlands
| | - Derek J. M. Meuwissen
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Sebastian D. Pruim
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Chenyu Zhou
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Vincent van Vught
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
| | - Johannes B. M. Klok
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
- Paqell
B.V., Reactorweg 301, 3542 AD Utrecht, The Netherlands
- Wetsus,
European Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC Leeuwarden, The Netherlands
| | - Cees J. N. Buisman
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
- Wetsus,
European Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC Leeuwarden, The Netherlands
| | - Renata D. van der Weijden
- Environmental
Technology, Wageningen University &
Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands
- Wetsus,
European Centre of Excellence for Sustainable Water Technology, P.O. Box 1113, 8900 CC Leeuwarden, The Netherlands
| |
Collapse
|
28
|
Perecin CJ, Tirich BM, Nagamine LC, Porto G, Rocha FV, Cerize NN, Varanda LC. Aqueous synthesis of magnetite nanoparticles for magnetic hyperthermia: Formation mechanism approach, high water-dispersity and stability. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127169] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
29
|
|
30
|
Kuhrts L, Prévost S, Chevrier DM, Pekker P, Spaeker O, Egglseder M, Baumgartner J, Pósfai M, Faivre D. Wettability of Magnetite Nanoparticles Guides Growth from Stabilized Amorphous Ferrihydrite. J Am Chem Soc 2021; 143:10963-10969. [PMID: 34264055 PMCID: PMC8323100 DOI: 10.1021/jacs.1c02687] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Crystal formation
via amorphous precursors is a long-sought-after
gateway to engineer nanoparticles with well-controlled size and morphology.
Biomineralizing organisms, like magnetotactic bacteria, follow such
a nonclassical crystallization pathway to produce magnetite nanoparticles
with sophistication unmatched by synthetic efforts at ambient conditions.
Here, using in situ small-angle X-ray scattering,
we demonstrate how the addition of poly(arginine) in the synthetic
formation of magnetite nanoparticles induces a biomineralization-reminiscent
pathway. The addition of poly(arginine) stabilizes an amorphous ferrihydrite
precursor, shifting the magnetite formation pathway from thermodynamic
to kinetic control. Altering the energetic landscape of magnetite
formation by catalyzing the pH-dependent precursor attachment, we
tune magnetite nanoparticle size continuously, exceeding sizes observed
in magnetotactic bacteria. This mechanistic shift we uncover here
further allows for crystal morphology control by adjusting the pH-dependent
interfacial interaction between liquidlike ferrihydrite and nascent
magnetite nanoparticles, establishing a new strategy to control nanoparticle
morphology. Synthesizing compact single crystals at wetting conditions
and unique semicontinuous single-crystalline nanoparticles at dewetting
conditions in combination with an improved control over magnetite
crystallite size, we demonstrate the versatility of bio-inspired,
kinetically controlled nanoparticle formation pathways.
Collapse
Affiliation(s)
- Lucas Kuhrts
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Sylvain Prévost
- Institut Laue-Langevin, 71 avenue des Martyrs, CS 20156, 38042 Cedex 9 Grenoble, France
| | - Daniel M Chevrier
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany.,CNRS, CEA, BIAM, Aix-Marseille University, 13108 Saint-Paul-lez-Durance, France
| | - Péter Pekker
- Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Egyetem u. 10, H8200 Veszprém, Hungary
| | - Oliver Spaeker
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Mathias Egglseder
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Jens Baumgartner
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany
| | - Mihály Pósfai
- Research Institute of Biomolecular and Chemical Engineering, University of Pannonia, Egyetem u. 10, H8200 Veszprém, Hungary
| | - Damien Faivre
- Max Planck Institute of Colloids and Interfaces, Am Mühlenberg 1, 14476 Potsdam, Germany.,CNRS, CEA, BIAM, Aix-Marseille University, 13108 Saint-Paul-lez-Durance, France
| |
Collapse
|
31
|
Engineering Iron Oxide Nanocatalysts by a Microwave-Assisted Polyol Method for the Magnetically Induced Degradation of Organic Pollutants. NANOMATERIALS 2021; 11:nano11041052. [PMID: 33924017 PMCID: PMC8072590 DOI: 10.3390/nano11041052] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/16/2021] [Accepted: 04/18/2021] [Indexed: 12/19/2022]
Abstract
Advanced oxidation processes constitute a promising alternative for the treatment of wastewater containing organic pollutants. Still, the lack of cost-effective processes has hampered the widespread use of these methodologies. Iron oxide magnetic nanoparticles stand as a great alternative since they can be engineered by different reproducible and scalable methods. The present study consists of the synthesis of single-core and multicore magnetic iron oxide nanoparticles by the microwave-assisted polyol method and their use as self-heating catalysts for the degradation of an anionic (acid orange 8) and a cationic dye (methylene blue). Decolorization of these dyes was successfully improved by subjecting the catalyst to an alternating magnetic field (AMF, 16 kA/m, 200 kHz). The sudden temperature increase at the surface of the catalyst led to an intensification of 10% in the decolorization yields using 1 g/L of catalyst, 0.3 M H2O2 and 500 ppm of dye. Full decolorization was achieved at 90 °C, but iron leaching (40 ppm) was detected at this temperature leading to a homogeneous Fenton process. Multicore nanoparticles showed higher degradation rates and 100% efficiencies in four reusability cycles under the AMF. The improvement of this process with AMF is a step forward into more sustainable remediation techniques.
Collapse
|
32
|
Time-connectivity superposition and the gel/glass duality of weak colloidal gels. Proc Natl Acad Sci U S A 2021; 118:2022339118. [PMID: 33837153 DOI: 10.1073/pnas.2022339118] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Colloidal gels result from the aggregation of Brownian particles suspended in a solvent. Gelation is induced by attractive interactions between individual particles that drive the formation of clusters, which in turn aggregate to form a space-spanning structure. We study this process in aluminosilicate colloidal gels through time-resolved structural and mechanical spectroscopy. Using the time-connectivity superposition principle a series of rapidly acquired linear viscoelastic spectra, measured throughout the gelation process by applying an exponential chirp protocol, are rescaled onto a universal master curve that spans over eight orders of magnitude in reduced frequency. This analysis reveals that the underlying relaxation time spectrum of the colloidal gel is symmetric in time with power-law tails characterized by a single exponent that is set at the gel point. The microstructural mechanical network has a dual character; at short length scales and fast times it appears glassy, whereas at longer times and larger scales it is gel-like. These results can be captured by a simple three-parameter constitutive model and demonstrate that the microstructure of a mature colloidal gel bears the residual skeleton of the original sample-spanning network that is created at the gel point. Our conclusions are confirmed by applying the same technique to another well-known colloidal gel system composed of attractive silica nanoparticles. The results illustrate the power of the time-connectivity superposition principle for this class of soft glassy materials and provide a compact description for the dichotomous viscoelastic nature of weak colloidal gels.
Collapse
|
33
|
Macroscopic materials assembled from nanoparticle superlattices. Nature 2021; 591:586-591. [PMID: 33762767 DOI: 10.1038/s41586-021-03355-z] [Citation(s) in RCA: 94] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Accepted: 02/12/2021] [Indexed: 02/07/2023]
Abstract
Nanoparticle assembly has been proposed as an ideal means to program the hierarchical organization of a material by using a selection of nanoscale components to build the entire material from the bottom up. Multiscale structural control is highly desirable because chemical composition, nanoscale ordering, microstructure and macroscopic form all affect physical properties1,2. However, the chemical interactions that typically dictate nanoparticle ordering3-5 do not inherently provide any means to manipulate structure at larger length scales6-9. Nanoparticle-based materials development therefore requires processing strategies to tailor micro- and macrostructure without sacrificing their self-assembled nanoscale arrangements. Here we demonstrate methods to rapidly assemble gram-scale quantities of faceted nanoparticle superlattice crystallites that can be further shaped into macroscopic objects in a manner analogous to the sintering of bulk solids. The key advance of this method is that the chemical interactions that govern nanoparticle assembly remain active during the subsequent processing steps, which enables the local nanoscale ordering of the particles to be preserved as the macroscopic materials are formed. The nano- and microstructure of the bulk solids can be tuned as a function of the size, chemical makeup and crystallographic symmetry of the superlattice crystallites, and the micro- and macrostructures can be controlled via subsequent processing steps. This work therefore provides a versatile method to simultaneously control structural organization across the molecular to macroscopic length scales.
Collapse
|
34
|
van Rijt MMJ, Oosterlaken BM, Friedrich H, de With G. Controlled titration-based ZnO formation. CrystEngComm 2021; 23:3340-3348. [PMID: 34093087 PMCID: PMC8107948 DOI: 10.1039/d1ce00222h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 03/22/2021] [Indexed: 11/21/2022]
Abstract
Hexamethylenetetramine (HMTA) is commonly used as a base releasing agent for the synthesis of ZnO under mild aqueous conditions. HMTA hydrolysis leads to gradual formation of a base during the reaction. Use of HMTA, however, does have limitations: HMTA hydrolysis yields both formaldehyde and ammonia, it provides no direct control over the ammonia addition rate or the total amount of ammonia added during the reaction, it results in a limited applicable pH range and it dictates the accessible reaction temperatures. To overcome these restrictions, this work presents a direct base titration strategy for ZnO synthesis in which a continuous base addition rate is maintained. Using this highly flexible strategy, wurtzite ZnO can be synthesized at a pH >5.5 using either KOH or ammonia as a base source at various addition rates and reaction pH values. In situ pH measurements suggest a similar reaction mechanism to HMTA-based synthesis, independent of the varied conditions. The type and concentration of the base used for titration affect the reaction product, with ammonia showing evidence of capping behaviour. Optimizing this strategy, we are able to influence and direct the crystal shape and significantly increase the product yield to 74% compared to the ∼13% obtained by the reference HMTA reaction.
Collapse
Affiliation(s)
- Mark M J van Rijt
- Laboratory of Physical Chemistry, Centre for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology P. O. Box 513 Eindhoven 5600 MB The Netherlands
| | - Bernette M Oosterlaken
- Laboratory of Physical Chemistry, Centre for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology P. O. Box 513 Eindhoven 5600 MB The Netherlands
| | - Heiner Friedrich
- Laboratory of Physical Chemistry, Centre for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology P. O. Box 513 Eindhoven 5600 MB The Netherlands
| | - Gijsbertus de With
- Laboratory of Physical Chemistry, Centre for Multiscale Electron Microscopy, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology P. O. Box 513 Eindhoven 5600 MB The Netherlands
| |
Collapse
|
35
|
Wu S, Zhang M, Song J, Weber S, Liu X, Fan C, Wu Y. Fine Customization of Calcium Phosphate Nanostructures with Site-Specific Modification by DNA Templated Mineralization. ACS NANO 2021; 15:1555-1565. [PMID: 33332975 DOI: 10.1021/acsnano.0c08998] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Calcium phosphate (Ca-P) is the most abundant biomineral in hard tissues with diverse microstructures, which in nature ensure a broad range of functionalities with virtually similar and simple chemical compositions. Artificial fabrication of rationally designed Ca-P materials with arbitrary microstructures is a long-standing challenge for inorganic chemists. Although DNA nanotechnology has been elegantly used to modulate the nanofabrication of inorganic materials because of its programmability, encoding customized Ca-P mineralization with high structural precision remains unachievable because of fast affinity-driven crystal growth. Herein, this long-standing ambition has been skillfully fulfilled by taking advantage of crystallization via a particle attachment (CPA) process. The derived hybrid materials not only well inherited the structural details encoded by the DNA template but also exhibited significantly enhanced mechanical strength, even after heating. Moreover, this method preserved preinstalled synthetic functionalities on the DNA surface, allowing for downstream site-specific modification.
Collapse
Affiliation(s)
- Shanshan Wu
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Load, Wuhan 430074, China
| | - Meizhou Zhang
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Load, Wuhan 430074, China
| | - Jie Song
- Department of Instrument Science and Engineering, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Stefan Weber
- Max Planck Institute for Polymer Research, Ackermannweg 10, Mainz 55128, Germany
| | - Xiaoguo Liu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Institute of Molecular Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200024, China
| | - Chunhai Fan
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Institute of Molecular Medicine, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200024, China
| | - Yuzhou Wu
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Load, Wuhan 430074, China
| |
Collapse
|
36
|
Padmanabhan SC, Collins TW, Pillai SC, McCormack DE, Kelly JM, Holmes JD, Morris MA. A conceptual change in crystallisation mechanisms of oxide materials from solutions in closed systems. Sci Rep 2020; 10:18414. [PMID: 33110206 PMCID: PMC7592049 DOI: 10.1038/s41598-020-75241-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 09/28/2020] [Indexed: 11/09/2022] Open
Abstract
Atomic and molecular level interactions in solutions dictate the structural and functional attributes of crystals. These features clearly dictate the properties of materials and their applicability in technologies. However, the microscopic phenomena of particle formation-nucleation and growth-in real systems are still not fully understood. Specifically, crystallisation occurring in closed systems are largely unproven. Combining coherent experimental data, we here demonstrate a fundamental nucleation-growth mechanism that occurs in a model zinc oxide system when particles are formed under continuous, rapid heating under closed reaction conditions. Defying all previous reports, we show that the nucleation commences only when the heating is terminated. A prenucleation clusters pathway is observed for nucleation, followed by crystallite assembly-growth. We show that the nucleation-growth processes result from temporal and dynamic activity of constituent ions and gaseous molecules in solution and by the irreversible expulsion of the dissolved gaseous molecules. We suggest that this nucleation process is generic to most closed systems that go through precipitation, and, therefore, important for the crystallisation of a variety of metal oxides, composites and minerals. We anticipate that the work may be a platform for future experimental and theoretical investigation promoting deeper understanding of the nucleation-growth phenomena of a variety of practical systems.
Collapse
Affiliation(s)
- Sibu C Padmanabhan
- Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, College Green, Dublin 2, Ireland. .,School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland. .,School of Chemistry, University College Cork, College Road, Cork, T12 YN60, Ireland.
| | - Timothy W Collins
- School of Chemistry, University College Cork, College Road, Cork, T12 YN60, Ireland
| | - Suresh C Pillai
- Centre for Precision Engineering, Materials and Manufacturing Research (PEM), Institute of Technology Sligo, Ash Lane, Sligo, F91 YW50, Ireland.,Nanotechnology and Bio-Engineering Research Group, Department of Environmental Science, Institute of Technology Sligo, Ash Lane, Sligo, F91 YW50, Ireland
| | - Declan E McCormack
- School of Chemical and Pharmaceutical Sciences, Technical University Dublin, City Campus, Kevin Street, Dublin 8, D02 HW71, Ireland
| | - John M Kelly
- School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland
| | - Justin D Holmes
- Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, College Green, Dublin 2, Ireland.,School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland.,School of Chemistry, University College Cork, College Road, Cork, T12 YN60, Ireland
| | - Michael A Morris
- Advanced Materials and BioEngineering Research (AMBER) Centre, Trinity College Dublin, College Green, Dublin 2, Ireland. .,School of Chemistry, Trinity College Dublin, College Green, Dublin 2, Ireland.
| |
Collapse
|
37
|
Zhu M, Wen Y, Song S, Zheng A, Li J, Sun W, Dai Y, Yin K, Sun L. Synergistic effects between polyvinylpyrrolidone and oxygen vacancies on improving the oxidase-mimetic activity of flower-like CeO 2 nanozymes. NANOSCALE 2020; 12:19104-19111. [PMID: 32691815 DOI: 10.1039/d0nr04177g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Both oxygen vacancies and surface chemistry can affect the enzyme-like catalytic activities of CeO2-based nanozymes. However, the mechanism of the enzyme-mimetic process is not yet clearly elucidated, which is of great importance to guide the synthesis of high-performance nanozymes with desirable properties. Herein, we report a facile one-pot solvothermal method for the preparation of polyvinylpyrrolidone (PVP)-capped CeO2 nanoflowers with adjustable oxygen vacancies by changing appropriate solvothermal reaction parameters. Oxygen vacancies effectively increase under a higher precursor concentration, extended solvothermal time, and proper reaction temperature. The maximum content of surface Ce(iii) cations is up to 50% for 31.1 nm CeO2 nanoflowers, which exhibit 0.07 mM apparent Michaelis constant towards 3,3',5,5'-tetramethylbenanozymeidine and show a higher binding affinity than the other CeO2-based catalysts. Theoretical results indicate that the synergy between PVP and oxygen vacancies can significantly promote the adsorption of O2 and TMB on CeO2, which directly enhances the oxidase-mimetic activity of flower-like CeO2 nanozymes. This work can shed light on a new perspective on the enzyme-like performance promotion of CeO2-based catalysts and surface engineering of nanozymes.
Collapse
Affiliation(s)
- Mingyun Zhu
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, P. R. China.
| | - Yifeng Wen
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, P. R. China.
| | - Shugui Song
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, P. R. China.
| | - Anqi Zheng
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, P. R. China.
| | - Jingcang Li
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, P. R. China.
| | - Weiwei Sun
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, P. R. China.
| | - Yunqian Dai
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P. R. China.
| | - Kuibo Yin
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, P. R. China.
| | - Litao Sun
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, P. R. China.
| |
Collapse
|
38
|
Baumgartner J, Ramamoorthy RK, Freitas AP, Neouze MA, Bennet M, Faivre D, Carriere D. Self-Confined Nucleation of Iron Oxide Nanoparticles in a Nanostructured Amorphous Precursor. NANO LETTERS 2020; 20:5001-5007. [PMID: 32551668 DOI: 10.1021/acs.nanolett.0c01125] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Crystallization from solution is commonly described by classical nucleation theory, although this ignores that crystals often form via disordered nanostructures. As an alternative, the classical theory remains widely used in a "multistep" variant, where the intermediate nanostructures merely introduce additional thermodynamic parameters. However, this variant still requires validation by experiments addressing indeed proper time and spatial scales (millisecond, nanometer). Here, we used in situ X-ray scattering to determine the mechanism of magnetite crystallization and, in particular, how nucleation propagates at the nanometer scale within amorphous precursors. We find that the self-confinement by an amorphous precursor slows down crystal growth by 2 orders of magnitude once the crystal size reaches the amorphous particle size (∼3 nm). Thus, not only the thermodynamic properties of transient amorphous nanostructures but also their spatial distribution determine crystal nucleation.
Collapse
Affiliation(s)
- Jens Baumgartner
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Science Park Golm, 14424 Potsdam, Germany
| | - Raj Kumar Ramamoorthy
- Université Paris-Saclay, CNRS, CEA, NIMBE, LIONS, CEA Saclay, 91191 Cedex Gif sur Yvette, France
| | - Alexy P Freitas
- Université Paris-Saclay, CNRS, CEA, NIMBE, LIONS, CEA Saclay, 91191 Cedex Gif sur Yvette, France
- Laboratoire de Physique de la Matière Condensée, École Polytechnique, CNRS, Université Paris-Saclay, 91128 Palaiseau, France
| | - Marie-Alexandra Neouze
- Laboratoire de Physique de la Matière Condensée, École Polytechnique, CNRS, Université Paris-Saclay, 91128 Palaiseau, France
| | - Mathieu Bennet
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Science Park Golm, 14424 Potsdam, Germany
| | - Damien Faivre
- Department of Biomaterials, Max Planck Institute of Colloids and Interfaces, Science Park Golm, 14424 Potsdam, Germany
- Aix-Marseille Université, CEA, CNRS, BIAM, 13108 Saint Paul lez Durance, France
| | - David Carriere
- Université Paris-Saclay, CNRS, CEA, NIMBE, LIONS, CEA Saclay, 91191 Cedex Gif sur Yvette, France
| |
Collapse
|
39
|
Reply to comment: Non-classical nucleation towards separation and recycling science: Iron and aluminium (oxy)(hydr)oxides. Curr Opin Colloid Interface Sci 2020. [DOI: 10.1016/j.cocis.2020.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
40
|
Comment: Non-classical nucleation towards separation and recycling science: Iron and aluminium (Oxy)(hydr)oxides. Curr Opin Colloid Interface Sci 2020. [DOI: 10.1016/j.cocis.2020.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
41
|
Affiliation(s)
- Jeffrey D Rimer
- Department of Chemical and Biomolecular Engineering, University of Houston, Houston, TX, USA.
| |
Collapse
|