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Wang Y, Coppel Y, Lepetit C, Marty JD, Mingotaud C, Kahn ML. Anisotropic growth of ZnO nanoparticles driven by the structure of amine surfactants: the role of surface dynamics in nanocrystal growth. NANOSCALE ADVANCES 2021; 3:6088-6099. [PMID: 36133935 PMCID: PMC9418458 DOI: 10.1039/d1na00566a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 08/11/2021] [Indexed: 05/15/2023]
Abstract
Herein, we elucidate the key role of amine surfactants in the controlled anisotropic growth of ZnO nanoparticles that is achieved under mild conditions by organometallic hydrolysis. The structuring influence of alkyl substituents on the nitrogen atom of amines is jointly analyzed theoretically by DFT modeling, and experimentally by multinuclear NMR (1H, 13C and 17O) spectroscopy. We demonstrate that in initial steps leading to the growth of colloidal ZnO particles, the nature of molecular species that are involved in the solution strongly depends on the structure of the amine surfactant. By using tertiary, secondary or primary amines, no or weak adducts between the amine and zinc, or stable adducts, or adduct oligomers were identified, respectively. Afterwards, following the course of the reaction, the dynamic behavior of the amines on the grown ZnO nanocrystal surfaces is also strongly correlated with their structure. We identified that in the presence of tertiary, secondary or primary amines, no significant [Zn⋯N] adsorption, or surface adsorption with notable surface mobility, or a very strong adsorption is achieved, respectively. The last case, primary amines, significantly involves the structuring of a hydrogen bonding network. Therefore, such surface dynamic behavior has a predominant role in driving the nanocrystal growth, and orienting the ZnO material final morphology. By forming hydrogen bonds at the nanoparticle surface during the growth process, primary amines specifically lead to the formation of nanorods. Conversely, isotropic nanoparticles and aggregates are obtained when secondary and tertiary amines are used, respectively. These findings shed light on the role of weak surface interactions, herein H-bonding, that rule the growth of nano-objects and are as such crucial to identify, study, and control for achieving progress in nanoscience.
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Affiliation(s)
- Yinping Wang
- Laboratoire de Chimie de Coordination, CNRS, UPR-8241 205 route de Narbonne 31077 Toulouse Cedex 04 France
- Laboratoire des IMRCP, CNRS UMR 5623, University of Toulouse 118 route de Narbonne 31062 Toulouse Cedex 9 France
| | - Yannick Coppel
- Laboratoire de Chimie de Coordination, CNRS, UPR-8241 205 route de Narbonne 31077 Toulouse Cedex 04 France
| | - Christine Lepetit
- Laboratoire de Chimie de Coordination, CNRS, UPR-8241 205 route de Narbonne 31077 Toulouse Cedex 04 France
| | - Jean-Daniel Marty
- Laboratoire des IMRCP, CNRS UMR 5623, University of Toulouse 118 route de Narbonne 31062 Toulouse Cedex 9 France
| | - Christophe Mingotaud
- Laboratoire des IMRCP, CNRS UMR 5623, University of Toulouse 118 route de Narbonne 31062 Toulouse Cedex 9 France
| | - Myrtil L Kahn
- Laboratoire de Chimie de Coordination, CNRS, UPR-8241 205 route de Narbonne 31077 Toulouse Cedex 04 France
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The influence of nanoparticles on phase formation and stability of liquid crystals and liquid crystalline polymers. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114849] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Mourdikoudis S, Pallares RM, Thanh NTK. Characterization techniques for nanoparticles: comparison and complementarity upon studying nanoparticle properties. NANOSCALE 2018; 10:12871-12934. [PMID: 29926865 DOI: 10.1039/c8nr02278j] [Citation(s) in RCA: 562] [Impact Index Per Article: 93.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Nanostructures have attracted huge interest as a rapidly growing class of materials for many applications. Several techniques have been used to characterize the size, crystal structure, elemental composition and a variety of other physical properties of nanoparticles. In several cases, there are physical properties that can be evaluated by more than one technique. Different strengths and limitations of each technique complicate the choice of the most suitable method, while often a combinatorial characterization approach is needed. In addition, given that the significance of nanoparticles in basic research and applications is constantly increasing, it is necessary that researchers from separate fields overcome the challenges in the reproducible and reliable characterization of nanomaterials, after their synthesis and further process (e.g. annealing) stages. The principal objective of this review is to summarize the present knowledge on the use, advances, advantages and weaknesses of a large number of experimental techniques that are available for the characterization of nanoparticles. Different characterization techniques are classified according to the concept/group of the technique used, the information they can provide, or the materials that they are destined for. We describe the main characteristics of the techniques and their operation principles and we give various examples of their use, presenting them in a comparative mode, when possible, in relation to the property studied in each case.
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Affiliation(s)
- Stefanos Mourdikoudis
- Biophysics Group, Department of Physics and Astronomy, University College London, London, WC1E 6BT, UK.
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Zheng Z, Butynska R, Serrano CV, Marty JD, Mingotaud C, Kahn ML. One-Step Synthesis of Hybrid Liquid-Crystal ZnO Nanoparticles: Existence of a Critical Temperature Associated with the Anisotropy of the Nanoparticles. Chemistry 2016; 22:15614-15618. [PMID: 27599122 DOI: 10.1002/chem.201602742] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Indexed: 11/11/2022]
Abstract
Zinc oxide nanoparticles were obtained from the hydrolysis of an organometallic precursor in pure hexadecylamine. Interestingly, we demonstrate that the final (anisotropic or isotropic) shape of the nanoparticles is strongly correlated to the existence of a critical temperature. This suggests that the organization of the fatty amines is a paramount parameter in this synthesis. Moreover, the final hybrid ZnO materials systematically exhibit a liquid-crystal smectic phase, whereas no liquid-crystal phase was observed in the pristine reaction media. This simple process is, therefore, a direct and straightforward method to synthesize liquid-crystal hybrid materials.
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Affiliation(s)
- Zhiqin Zheng
- Laboratoire des IMRCP CNRS UMR 5623, University of Toulouse, 118, route de Narbonne, 31062, Toulouse Cedex 9, France.,Laboratoire de Chimie de Coordination, CNRS UPR 8241, University of Toulouse, 205, route de Narbonne, 31062, Toulouse Cedex 9, France
| | - Rémy Butynska
- Laboratoire des IMRCP CNRS UMR 5623, University of Toulouse, 118, route de Narbonne, 31062, Toulouse Cedex 9, France.,Laboratoire de Chimie de Coordination, CNRS UPR 8241, University of Toulouse, 205, route de Narbonne, 31062, Toulouse Cedex 9, France
| | - Clara Valverde Serrano
- Department of Biomaterials Max Planck Institute for Colloids and Interfaces, Am Mühlenberg 1, 14476, 14424, Potsdam-Golm, Germany
| | - Jean-Daniel Marty
- Laboratoire des IMRCP CNRS UMR 5623, University of Toulouse, 118, route de Narbonne, 31062, Toulouse Cedex 9, France
| | - Christophe Mingotaud
- Laboratoire des IMRCP CNRS UMR 5623, University of Toulouse, 118, route de Narbonne, 31062, Toulouse Cedex 9, France.
| | - Myrtil L Kahn
- Laboratoire de Chimie de Coordination, CNRS UPR 8241, University of Toulouse, 205, route de Narbonne, 31062, Toulouse Cedex 9, France.
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Paczesny J, Wolska-Pietkiewicz M, Binkiewicz I, Wróbel Z, Wadowska M, Matuła K, Dzięcielewski I, Pociecha D, Smalc-Koziorowska J, Lewiński J, Hołyst R. Towards Organized Hybrid Nanomaterials at the Air/Water Interface Based on Liquid-Crystal/ZnO Nanocrystals. Chemistry 2015; 21:16941-7. [DOI: 10.1002/chem.201502714] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Indexed: 11/08/2022]
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Voltage‐Driven Photoluminescence Modulation of Liquid‐Crystalline Hybridized ZnO Nanoparticles. Chemistry 2014; 20:13770-6. [DOI: 10.1002/chem.201403154] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2014] [Indexed: 11/07/2022]
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Yuan K, Chen L, Chen Y. Direct Anisotropic Growth of CdS Nanocrystals in Thermotropic Liquid Crystal Templates for Heterojunction Optoelectronics. Chemistry 2014; 20:11488-95. [DOI: 10.1002/chem.201403331] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Indexed: 01/01/2023]
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Lewandowski W, Wójcik M, Górecka E. Metal Nanoparticles with Liquid-Crystalline Ligands: Controlling Nanoparticle Superlattice Structure and Properties. Chemphyschem 2014; 15:1283-95. [DOI: 10.1002/cphc.201301194] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Revised: 03/20/2014] [Indexed: 01/24/2023]
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Nguyen HH, Serrano CV, Lavedan P, Goudounèche D, Mingotaud AF, Lauth-de Viguerie N, Marty JD. Mesomorphic ionic hyperbranched polymers: effect of structural parameters on liquid-crystalline properties and on the formation of gold nanohybrids. NANOSCALE 2014; 6:3599-3610. [PMID: 24548993 DOI: 10.1039/c3nr05913h] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Branched thermotropic liquid crystals were successfully obtained from ionic interactions between hyperbranched polyamidoamine and sodium dodecylsulfate. These complexes present columnar rectangular and lamellar thermotropic mesophases as demonstrated by polarized optical microscopy, differential scanning calorimetry, and small-angle X-ray scattering. The relationships between the structural characteristics of the polymers (size of the hyperbranched core, hyperbranched or dendritic nature of the core, and substitution ratio) and the mesomorphic properties were studied. In situ formation of gold nanoparticles was then performed. The templating effect of the liquid crystal mesophase resulted in the formation of isotropic nanoparticles, the size of which was dictated by the local organization of the mesophase and by the molar mass of the hyperbranched complex.
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Affiliation(s)
- Hong Hanh Nguyen
- IMRCP, Université de Toulouse, 118 route de Narbonne, 31062 Toulouse, France.
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Saliba S, Mingotaud C, Kahn ML, Marty JD. Liquid crystalline thermotropic and lyotropic nanohybrids. NANOSCALE 2013; 5:6641-6661. [PMID: 23817742 DOI: 10.1039/c3nr01175e] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This review is meant to give the reader an insight into hybrids incorporating different types of nanoparticles, e.g. metallic or metal oxides, within different types of lyotropic and thermotropic liquid crystals, from relatively small calamitic molecules to the larger discotics and polymers. In particular, this review highlights the importance of nanoparticle-liquid crystal interactions in accessing hybrid materials that exhibit synergetic properties.
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Affiliation(s)
- Sarmenio Saliba
- Laboratoire IMRCP, CNRS UMR 5623, University of Toulouse, 118, route de Narbonne, 31062, Toulouse, France
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Amiens C, Chaudret B, Ciuculescu-Pradines D, Collière V, Fajerwerg K, Fau P, Kahn M, Maisonnat A, Soulantica K, Philippot K. Organometallic approach for the synthesis of nanostructures. NEW J CHEM 2013. [DOI: 10.1039/c3nj00650f] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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