1
|
Oaki Y, Igarashi Y. Materials Informatics for 2D Materials Combined with Sparse Modeling and Chemical Perspective: Toward Small-Data-Driven Chemistry and Materials Science. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210253] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yuya Oaki
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
- JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Yasuhiko Igarashi
- Faculty of Engineering, Information and Systems, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8573, Japan
- JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| |
Collapse
|
2
|
Payet F, Bouillet C, Leroux F, Leuvrey C, Rabu P, Schosseler F, Taviot-Guého C, Rogez G. Fast and efficient shear-force assisted production of covalently functionalized oxide nanosheets. J Colloid Interface Sci 2021; 607:621-632. [PMID: 34520905 DOI: 10.1016/j.jcis.2021.08.213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 10/20/2022]
Abstract
HYPOTHESIS While controlled and efficient exfoliation of layered oxides often remains a time consuming challenge, the surface modification of inorganic nanosheets is of outmost importance for future applications. The functionalization of the bulk material prior to exfoliation should allow the application of tools developped for Van der Waals materials to directly produce functionalized oxide nanosheets. EXPERIMENTS The Aurivillius phase Bi2SrTa2O9 is functionalized by a linear aliphatic phosphonic acid via microwave-assisted reactions. The structure of the hybrid material and the coordination of the phosphonate group is scrutinized, notably by Pair Distribution Function. This functionalized layered oxide is then exfoliated in one hour in organic solvent, using high shear force dispersion. The obtained nanosheets are characterized in suspension and as deposits to check their chemical integrity. FINDINGS The covalent functionalization decreases the electrostatic cohesion between the inorganic layers leading to an efficient exfoliation in short time under shearing. The functionalization of the bulk material is preserved on the nanosheets upon exfoliation and plays a major role to enable liquid-phase exfoliation and in the stability of the resulting suspensions. This strategy is very promising for the straighforward preparation of functionalized nanosheets, paving the way for versatile design of new (multi)functional hybrid nanosheets for various potential applications.
Collapse
Affiliation(s)
- Frédéric Payet
- Institut de Physique et Chimie des Matériaux de Strasbourg, CNRS - Université de Strasbourg, UMR7504, 23 rue du Loess, BP43, 67034 Strasbourg cedex 2, France.
| | - Corinne Bouillet
- Institut de Physique et Chimie des Matériaux de Strasbourg, CNRS - Université de Strasbourg, UMR7504, 23 rue du Loess, BP43, 67034 Strasbourg cedex 2, France.
| | - Fabrice Leroux
- Institut de Chimie de Clermont-Ferrand, Université Clermont Auvergne, UMR CNRS 6296, Clermont Auvergne INP, 24 av Blaise Pascal, BP 80026, 63171 Aubière cedex, France.
| | - Cédric Leuvrey
- Institut de Physique et Chimie des Matériaux de Strasbourg, CNRS - Université de Strasbourg, UMR7504, 23 rue du Loess, BP43, 67034 Strasbourg cedex 2, France.
| | - Pierre Rabu
- Institut de Physique et Chimie des Matériaux de Strasbourg, CNRS - Université de Strasbourg, UMR7504, 23 rue du Loess, BP43, 67034 Strasbourg cedex 2, France.
| | - François Schosseler
- Institut Charles Sadron, CNRS UPR 22, 23 rue du Loess, BP84047, 67034 Strasbourg cedex 2, France.
| | - Christine Taviot-Guého
- Institut de Chimie de Clermont-Ferrand, Université Clermont Auvergne, UMR CNRS 6296, Clermont Auvergne INP, 24 av Blaise Pascal, BP 80026, 63171 Aubière cedex, France.
| | - Guillaume Rogez
- Institut de Physique et Chimie des Matériaux de Strasbourg, CNRS - Université de Strasbourg, UMR7504, 23 rue du Loess, BP43, 67034 Strasbourg cedex 2, France.
| |
Collapse
|
3
|
Haraguchi Y, Igarashi Y, Imai H, Oaki Y. Size‐Distribution Control of Exfoliated Nanosheets Assisted by Machine Learning: Small‐Data‐Driven Materials Science Using Sparse Modeling. ADVANCED THEORY AND SIMULATIONS 2021. [DOI: 10.1002/adts.202100158] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yuri Haraguchi
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3‐14‐1 Hiyoshi Kohoku‐ku Yokohama 223–8522 Japan
| | - Yasuhiko Igarashi
- Faculty of Engineering Information and Systems University of Tsukuba 1‐1‐1 Tennodai Tsukuba 305–8573 Japan
- JST PRESTO 4‐1‐8 Honcho Kawaguchi Saitama 332‐0012 Japan
| | - Hiroaki Imai
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3‐14‐1 Hiyoshi Kohoku‐ku Yokohama 223–8522 Japan
| | - Yuya Oaki
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3‐14‐1 Hiyoshi Kohoku‐ku Yokohama 223–8522 Japan
- JST PRESTO 4‐1‐8 Honcho Kawaguchi Saitama 332‐0012 Japan
| |
Collapse
|
4
|
Mizuguchi R, Igarashi Y, Imai H, Oaki Y. Lateral-size control of exfoliated transition-metal-oxide 2D materials by machine learning on small data. NANOSCALE 2021; 13:3853-3859. [PMID: 33566049 DOI: 10.1039/d0nr08684c] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
A wide variety of nanosheets including monolayers and few-layers have attracted much interest as two-dimensional (2D) materials for the unique anisotropic structures and properties. On the other hand, one of the significant remaining and challenging issues is the lateral-size control. Since 2D materials are generally synthesized by the exfoliation of layered materials, the lateral size is not easily controlled in the breaking-down processes. The experimental factors have not been found for the control and prediction. In the present work, lateral sizes of the exfoliated transition-metal-oxide nanosheets were predicted and controlled by the assistance of machine learning. Layered composites of host inorganic layers and guest organic molecules were exfoliated into nanosheets in organic dispersion media. The lateral size of the nanosheets was estimated by dynamic light scattering (DLS), instead of microscopy methods, to achieve high-throughput analyses. Factors governing the lateral size are explored on the small experimental data by the assistance of sparse modeling, a method of machine learning. The eight physicochemical parameters of the organic guests and dispersion media were extracted by sparse modeling for the construction of the size-prediction model. The size-prediction model accelerated the selective syntheses of the nanosheets with large and small lateral sizes in a limited number of experiments. The results indicate that the prediction model is a guideline to find suitable exfoliation conditions for size control. Size-selective syntheses of a variety of 2D materials can be achieved by similar methods using sparse modeling on small experimental data. Moreover, sparse modeling is applicable to control the design and exploration of other materials and their processing based on small data.
Collapse
Affiliation(s)
- Ryosuke Mizuguchi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| | - Yasuhiko Igarashi
- Faculty of Engineering, Information and Systems, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8573, Japan and JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Hiroaki Imai
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| | - Yuya Oaki
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan. and JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| |
Collapse
|
5
|
Affiliation(s)
- Yuya Oaki
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan
| |
Collapse
|
6
|
Oaki Y. Intercalation and flexibility chemistries of soft layered materials. Chem Commun (Camb) 2020; 56:13069-13081. [PMID: 33021619 DOI: 10.1039/d0cc05931e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Layered materials, alternate stackings of two or more components, are found in a wide range of scales. Chemists can design and synthesize layered structures containing functional units. The soft-type layered materials exhibit characteristic dynamic functions originating from two-dimensional (2D) anisotropy and structure flexibility. This feature article focuses on "intercalation" and "flexibility" as two new perspectives for designing soft layered materials. Intercalation of guests is a characteristic approach for design of layered structures. Flexibility is an important factor to control the dynamic functions of the layered structures. As a model case, the intercalation-induced tunable stimuli-responsive color-change properties of layered polydiacetylene (PDA) are introduced to study the impact of the intercalation and flexibility on the dynamic functions. Recently, layered materials have drastically expanded the research area from conventional rigid inorganic compounds to new self-assembled nanostructures consisting of organic components, such as polymers, metal-organic frameworks, and covalent-organic frameworks. These new layered architectures have potentials for exhibiting dynamic functions originating from the structure flexibility beyond the static properties originating from classical intercalation and host-guest chemistries. Therefore, intercalation and flexibility chemistries of soft layered materials are regarded as new perspectives for design of advanced dynamic functional materials.
Collapse
Affiliation(s)
- Yuya Oaki
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| |
Collapse
|
7
|
Noda K, Igarashi Y, Imai H, Oaki Y. Efficient Syntheses of 2D Materials from Soft Layered Composites Guided by Yield Prediction Model: Potential of Experiment‐Oriented Materials Informatics. ADVANCED THEORY AND SIMULATIONS 2020. [DOI: 10.1002/adts.202000084] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Kyohei Noda
- Department of Applied ChemistryFaculty of Science and TechnologyKeio University 3‐14‐1 Hiyoshi, Kohoku‐ku Yokohama 223‐8522 Japan
| | - Yasuhiko Igarashi
- Graduate School of Frontier SciencesThe University of Tokyo 5‐1‐5 Kashiwanoha Kashiwa 277‐8561 Japan
| | - Hiroaki Imai
- Department of Applied ChemistryFaculty of Science and TechnologyKeio University 3‐14‐1 Hiyoshi, Kohoku‐ku Yokohama 223‐8522 Japan
| | - Yuya Oaki
- Department of Applied ChemistryFaculty of Science and TechnologyKeio University 3‐14‐1 Hiyoshi, Kohoku‐ku Yokohama 223‐8522 Japan
- JSTPRESTO 4‐1‐8 Honcho Kawaguchi Saitama 332‐0012 Japan
| |
Collapse
|
8
|
Mizuguchi R, Imai H, Oaki Y. Formation processes, size changes, and properties of nanosheets derived from exfoliation of soft layered inorganic-organic composites. NANOSCALE ADVANCES 2020; 2:1168-1176. [PMID: 36133044 PMCID: PMC9417460 DOI: 10.1039/d0na00084a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 01/30/2020] [Indexed: 05/20/2023]
Abstract
Exfoliation is a general route to obtain two-dimensional (2D) nanomaterials. A variety of methods have been developed for controlled exfoliation of layered materials based on stacking via van der Waals interaction, such as graphite and transition-metal dichalcogenides. On the other hand, rigid layered materials consisting of inorganic layers and interlayer metal ions stacked via electrostatic interaction, such as transition-metal oxides and clays, have a limited number of exfoliation methods. Here we studied a new exfoliation route through formation of soft layered composites. Intercalation of guest organic molecules changed rigid inorganic layered compounds into soft layered composites with stacking via van der Waals interaction. The soft layered inorganic-organic composites were exfoliated into surface-modified nanosheets in organic media. The layered composites showed swelling with dispersion in organic media. The time-course analyses suggest that the layered composites were simultaneously exfoliated in the vertical direction and fractured in the lateral direction. Thinner and smaller nanosheets were obtained with an increase in the exfoliation time. Although the resultant nanosheets gradually aggregated in the colloidal liquid, the original dispersion state was recovered with sonication for 5 min at room temperature. This exfoliation route using soft layered composites can be used in the synthesis and application of a variety of 2D nanomaterials.
Collapse
Affiliation(s)
- Ryosuke Mizuguchi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Hiroaki Imai
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Yuya Oaki
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
- JST, PRESTO 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
| |
Collapse
|
9
|
Nakada G, Imai H, Oaki Y. Few-layered titanate nanosheets with large lateral size and surface functionalization: potential for the controlled exfoliation of inorganic–organic layered composites. Chem Commun (Camb) 2018; 54:244-247. [DOI: 10.1039/c7cc07759a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A new straightforward exfoliation method realizes the selective synthesis of few-layered titanate nanosheets with a large lateral size and surface functionalization.
Collapse
Affiliation(s)
- Gentoku Nakada
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Kohoku-ku
- Japan
| | - Hiroaki Imai
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Kohoku-ku
- Japan
| | - Yuya Oaki
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Kohoku-ku
- Japan
| |
Collapse
|
10
|
Oaki Y. Morphology Design of Crystalline and Polymer Materials from Nanoscopic to Macroscopic Scales. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2017. [DOI: 10.1246/bcsj.20170098] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yuya Oaki
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522
| |
Collapse
|
11
|
Ishijima Y, Okaniwa M, Oaki Y, Imai H. Two exfoliation approaches for organic layered compounds: hydrophilic and hydrophobic polydiacetylene nanosheets. Chem Sci 2017; 8:647-653. [PMID: 28451212 PMCID: PMC5297333 DOI: 10.1039/c6sc03350d] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 08/23/2016] [Indexed: 12/29/2022] Open
Abstract
Nanosheets have attracted much interest because of their characteristic properties originating from anisotropic and flexible structures. Inorganic nanosheets are synthesized from precursor layered compounds through exfoliation in a liquid phase. In contrast, a versatile exfoliation approach has not been fully studied for organic layered compounds. Here we report two exfoliation approaches for organic layered compounds. Hydrophilic and hydrophobic polydiacetylene (PDA) nanosheets, around 5 nm in thickness, are obtained through exfoliation of the layered precursor in aqueous and nonpolar organic media, respectively. The intercalation of ions and molecules in the interlayer space facilitates swelling and exfoliation. The resultant PDA nanosheets showed characteristic photochemical properties originating from the flexible structure. The exfoliation approach can be applied to a variety of organic layered compounds for the generation of designed nanosheets.
Collapse
Affiliation(s)
- Yukiko Ishijima
- Department of Applied Chemistry , Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama 223-8522 , Japan .
| | - Mamoru Okaniwa
- Department of Applied Chemistry , Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama 223-8522 , Japan .
| | - Yuya Oaki
- Department of Applied Chemistry , Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama 223-8522 , Japan .
| | - Hiroaki Imai
- Department of Applied Chemistry , Faculty of Science and Technology , Keio University , 3-14-1 Hiyoshi, Kohoku-ku , Yokohama 223-8522 , Japan .
| |
Collapse
|
12
|
Matsui H, Oaki Y, Imai H. Surface-functionalized hydrophilic monolayer of titanate and its application for dopamine detection. Chem Commun (Camb) 2016; 52:9466-9. [PMID: 27381420 DOI: 10.1039/c6cc02940j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A surface-functionalized hydrophilic charge-neutral monolayer of titanate was exfoliated from the precursor layered composite in aqueous media without addition of a delamination agent. The hydrophilic monolayer was applied for the detection of dopamine based on visible-light absorption originating from charge-transfer excitation from adsorbed dopamine to titanate.
Collapse
Affiliation(s)
- Hiroshi Matsui
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| | | | | |
Collapse
|
13
|
Matsui H, Oaki Y, Imai H. Tunable photochemical properties of a covalently anchored and spatially confined organic polymer in a layered compound. NANOSCALE 2016; 8:11076-83. [PMID: 27228179 DOI: 10.1039/c6nr02368a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
A covalently anchored and spatially confined organic polymer was formed in a layered compound with a surface-modified layer. The resultant anchored and confined polymer showed tunable photochemical properties with the incorporation of a variety of guest molecules originating from the specific incorporation states. The layer surface of an inorganic layered compound was modified by an organic molecule with vinyl groups. The precursor layered composite accommodated N-vinylcarbazole (VCz), a vinyl monomer, in the hydrophobic interlayer space. The introduction of VCz induced the simultaneous exfoliation of the layered structures and copolymerization with vinyl groups on the layer surface. The covalently anchored and spatially confined poly(N-vinylcarbazole) (PVCz) with tunable photochemical properties was formed in a layered structure. The present study shows the versatile potential of polymers with anchored and confined states in surface-functionalized layered composites.
Collapse
Affiliation(s)
- Hiroshi Matsui
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| | | | | |
Collapse
|
14
|
Honda M, Oaki Y, Imai H. Surface-functionalized monolayered nanodots of a transition metal oxide and their properties. Phys Chem Chem Phys 2015; 17:32498-504. [DOI: 10.1039/c5cp05584a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Transition metal oxide monolayers with controlled lateral size, surface chemistry, and properties are obtained in a nonpolar organic medium.
Collapse
Affiliation(s)
- Masashi Honda
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Kohoku-ku
- Japan
| | - Yuya Oaki
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Kohoku-ku
- Japan
| | - Hiroaki Imai
- Department of Applied Chemistry
- Faculty of Science and Technology
- Keio University
- Kohoku-ku
- Japan
| |
Collapse
|