1
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Im SW, Zhang D, Han JH, Kim RM, Choi C, Kim YM, Nam KT. Investigating chiral morphogenesis of gold using generative cellular automata. NATURE MATERIALS 2024; 23:977-983. [PMID: 38693448 DOI: 10.1038/s41563-024-01889-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 04/03/2024] [Indexed: 05/03/2024]
Abstract
Homochirality is an important feature in biological systems and occurs even in inorganic nanoparticles. However, the mechanism of chirality formation and the key steps during growth are not fully understood. Here we identify two distinguishable pathways from achiral to chiral morphologies in gold nanoparticles by training an artificial neural network of cellular automata according to experimental results. We find that the chirality is initially determined by the nature of the asymmetric growth along the boundaries of enantiomeric high-index planes. The deep learning-based interpretation of chiral morphogenesis provides a theoretical understanding but also allows us to predict an unprecedented crossover pathway and the resulting morphology.
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Affiliation(s)
- Sang Won Im
- Department of Materials Science and Engineering, Seoul National University, Seoul, Korea
| | - Dongsu Zhang
- Institute of New Media and Communications, Seoul National University, Seoul, Korea
| | - Jeong Hyun Han
- Department of Materials Science and Engineering, Seoul National University, Seoul, Korea
| | - Ryeong Myeong Kim
- Department of Materials Science and Engineering, Seoul National University, Seoul, Korea
| | - Changwoon Choi
- Department of Electrical and Computer Engineering, Seoul National University, Seoul, Korea
| | - Young Min Kim
- Institute of New Media and Communications, Seoul National University, Seoul, Korea.
- Department of Electrical and Computer Engineering, Seoul National University, Seoul, Korea.
| | - Ki Tae Nam
- Department of Materials Science and Engineering, Seoul National University, Seoul, Korea.
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2
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Moser A, Yarema O, Garcia G, Luisier M, Longo F, Billeter E, Borgschulte A, Yarema M, Wood V. Synthesis and Electronic Structure of Mid-Infrared Absorbing Cu 3SbSe 4 and Cu xSbSe 4 Nanocrystals. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2023; 35:6323-6331. [PMID: 37637010 PMCID: PMC10448677 DOI: 10.1021/acs.chemmater.3c00911] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 07/14/2023] [Indexed: 08/29/2023]
Abstract
Aliovalent I-V-VI semiconductor nanocrystals are promising candidates for thermoelectric and optoelectronic applications. Famatinite Cu3SbSe4 stands out due to its high absorption coefficient and narrow band gap in the mid-infrared spectral range. This paper combines experiment and theory to investigate the synthesis and electronic structure of colloidal CuxSbSe4 nanocrystals. We achieve predictive composition control of size-uniform CuxSbSe4 (x = 1.9-3.4) nanocrystals. Density functional theory (DFT)-parametrized tight-binding simulations on nanocrystals show that the more the Cu-vacancies, the wider the band gap of CuxSbSe4 nanocrystals, a trend which we also confirm experimentally via FTIR spectroscopy. We show that SbCu antisite defects can create mid-gap states, which may give rise to sub-bandgap absorption. This work provides a detailed study of CuxSbSe4 nanocrystals and highlights the potential opportunities as well as challenges for their application in infrared devices.
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Affiliation(s)
- Annina Moser
- Institute
for Electronics, Department of Information Technology and Electrical
Engineering, ETH Zurich, Gloriastrasse 35, CH-8092 Zurich, Switzerland
| | - Olesya Yarema
- Institute
for Electronics, Department of Information Technology and Electrical
Engineering, ETH Zurich, Gloriastrasse 35, CH-8092 Zurich, Switzerland
| | - Gregorio Garcia
- Departamento
de Tecnología Fotónica y Bioingeniería &
Instituto de Energía Solar, ETSI Telecomunicación, Universidad Politécnica de Madrid, Ciudad Universitaria, ES-20840 Madrid, Spain
| | - Mathieu Luisier
- Institute
for Integrated Systems, Department of Information Technology and Electrical
Engineering, ETH Zurich, Gloriastrasse 35, CH-8092 Zurich, Switzerland
| | - Filippo Longo
- Laboratory
for Advanced Analytical Technologies, Empa, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Emanuel Billeter
- Department
of Physics, Danmarks Tekniske Universitet, Fysikvej, Building 312, 2800 Kgs. Lyngby, Denmark
| | - Andreas Borgschulte
- Laboratory
for Advanced Analytical Technologies, Empa, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
- Department
of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zürich, Switzerland
| | - Maksym Yarema
- Institute
for Electronics, Department of Information Technology and Electrical
Engineering, ETH Zurich, Gloriastrasse 35, CH-8092 Zurich, Switzerland
| | - Vanessa Wood
- Institute
for Electronics, Department of Information Technology and Electrical
Engineering, ETH Zurich, Gloriastrasse 35, CH-8092 Zurich, Switzerland
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3
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Pokratath R, Lermusiaux L, Checchia S, Mathew JP, Cooper SR, Mathiesen JK, Landaburu G, Banerjee S, Tao S, Reichholf N, Billinge SJL, Abécassis B, Jensen KMØ, De Roo J. An Amorphous Phase Precedes Crystallization: Unraveling the Colloidal Synthesis of Zirconium Oxide Nanocrystals. ACS NANO 2023; 17:8796-8806. [PMID: 37093055 PMCID: PMC10173684 DOI: 10.1021/acsnano.3c02149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
One can nowadays readily generate monodisperse colloidal nanocrystals, but the underlying mechanism of nucleation and growth is still a matter of intense debate. Here, we combine X-ray pair distribution function (PDF) analysis, small-angle X-ray scattering (SAXS), nuclear magnetic resonance (NMR), and transmission electron microscopy (TEM) to investigate the nucleation and growth of zirconia nanocrystals from zirconium chloride and zirconium isopropoxide at 340 °C, in the presence of surfactant (tri-n-octylphosphine oxide). Through E1 elimination, precursor conversion leads to the formation of small amorphous particles (less than 2 nm in diameter). Over the course of the reaction, the total particle concentration decreases while the concentration of nanocrystals stays constant after a sudden increase (nucleation). Kinetic modeling suggests that amorphous particles nucleate into nanocrystals through a second order process and they are also the source of nanocrystal growth. There is no evidence for a soluble monomer. The nonclassical nucleation is related to a precursor decomposition rate that is an order of magnitude higher than the observed crystallization rate. Using different zirconium precursors (e.g., ZrBr4 or Zr(OtBu)4), we can tune the precursor decomposition rate and thus control the nanocrystal size. We expect these findings to help researchers in the further development of colloidal syntheses.
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Affiliation(s)
- Rohan Pokratath
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4058 Basel, Switzerland
| | - Laurent Lermusiaux
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69364 Lyon, France
| | - Stefano Checchia
- ESRF Synchrotron, ID15A Beamline, 71 Avenue des Martyrs, CS40220, 38043 Grenoble, France
| | | | - Susan Rudd Cooper
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
| | - Jette Katja Mathiesen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
- Department of Physics, Technical University of Denmark, Fysikvej Bldg. 312, 2800 Kgs. Lyngby, Denmark
| | - Guillaume Landaburu
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69364 Lyon, France
| | - Soham Banerjee
- Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22607 Hamburg, Germany
| | - Songsheng Tao
- Applied Physics and Applied Mathematics Department, Columbia University, New York, New York 10027, United States
| | - Nico Reichholf
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4058 Basel, Switzerland
| | - Simon J L Billinge
- Applied Physics and Applied Mathematics Department, Columbia University, New York, New York 10027, United States
| | - Benjamin Abécassis
- ENSL, CNRS, Laboratoire de Chimie UMR 5182, 46 allée d'Italie, 69364 Lyon, France
| | - Kirsten M Ø Jensen
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
| | - Jonathan De Roo
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4058 Basel, Switzerland
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4
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Murphy JG, Raybin JG, Ansay GE, Sibener SJ. Spatiotemporal Mapping of Hole Nucleation and Growth during Block Copolymer Terracing with High-Speed Atomic Force Microscopy. ACS NANO 2023; 17:5644-5652. [PMID: 36912602 DOI: 10.1021/acsnano.2c11672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
As a platform for investigating two-dimensional phase separation, we track the structural evolution of block copolymer thin films during thermal annealing with environmentally controlled atomic force microscopy (AFM). Upon thermal annealing, block copolymer films with incommensurate thickness separate into a terraced morphology decorated with holes. With in situ imaging at 200 °C, we follow the continuous progression of terrace formation in a single region of a cylinder-forming poly(styrene-block-methyl methacrylate) thin film, beginning with the disordered morphology on an unpatterned silicon substrate and continuing through nucleation and coarsening stages. Topographic AFM imaging with nanoscale resolution simultaneously captures ensemble hole growth statistics while locally tracking polymer diffusion through measurements of the film thickness. At early times, we observe homogeneous hole nucleation and isotropic growth, with kinetics following the predictions of classical nucleation theory. At later times, however, we find anomalous hole growth which arises due to the combination of Ostwald ripening and coalescence mechanisms. In each case, our real-space observations highlight the importance of hole interactions for determining coarsening kinetics, mediated either through the interconnected phase for Ostwald ripening or through binary collision events for coalescence.
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Affiliation(s)
- Julia G Murphy
- Department of Chemistry and The James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States
| | - Jonathan G Raybin
- Department of Chemistry and The James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States
| | - Genevieve E Ansay
- Department of Chemistry and The James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States
| | - Steven J Sibener
- Department of Chemistry and The James Franck Institute, The University of Chicago, Chicago, Illinois 60637, United States
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5
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Weatherspoon H, Peters B. Broken bond models, magic-sized clusters, and nucleation theory in nanoparticle synthesis. J Chem Phys 2023; 158:114306. [PMID: 36948834 DOI: 10.1063/5.0132601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023] Open
Abstract
Magic clusters are metastable faceted nanoparticles that are thought to be important and, sometimes, observable intermediates in the nucleation of certain faceted crystallites. This work develops a broken bond model for spheres with a face-centered-cubic packing that form tetrahedral magic clusters. With just one bond strength parameter, statistical thermodynamics yield a chemical potential driving force, an interfacial free energy, and free energy vs magic cluster size. These properties exactly correspond to those from a previous model by Mule et al. [J. Am. Chem. Soc. 143, 2037 (2021)]. Interestingly, a Tolman length emerges (for both models) when the interfacial area, density, and volume are treated consistently. To describe the kinetic barriers between magic cluster sizes, Mule et al. invoked an energy parameter to penalize the two-dimensional nucleation and growth of new layers in each facet of the tetrahedra. According to the broken bond model, barriers between magic clusters are insignificant without the additional edge energy penalty. We estimate the overall nucleation rate without predicting the rates of formation for intermediate magic clusters by using the Becker-Döring equations. Our results provide a blueprint for constructing free energy models and rate theories for nucleation via magic clusters starting from only atomic-scale interactions and geometric considerations.
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Affiliation(s)
- Howard Weatherspoon
- Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Baron Peters
- Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
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6
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Hu HL, Hao H, Ren X, Chen ZY, Liu M, Liu Y, Jiang FL. Bright InP Quantum Dots by Mid-Synthetic Modification with Zinc Halides. Inorg Chem 2023; 62:2877-2886. [PMID: 36723932 DOI: 10.1021/acs.inorgchem.2c04308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
InP quantum dots (QDs) attract growing interest in recent years, owing to their environmental advantages upon applications in display and lighting. However, compared to Cd-based QDs and Pb-based perovskites, the synthesis of InP QDs with high optical quality is relatively more difficult. Here, we established a mid-synthetic modification approach to improve the optical properties of InP-based QDs. Tris(dimethylamino)phosphine ((DMA)3P) and indium iodide were used to prepare InP QDs with a green emission (∼527 nm). By introducing zinc halides (ZnX2) during the mid-synthetic process, the photoluminescence quantum yield (PLQY) of the resulting InP/ZnSeS/ZnS core/shell/shell QDs was increased to >70%, and the full-width-at-half-maximum (FWHM) could be narrowed to ∼40 nm. Transmission electron microscopy clearly showed the improvement of the QDs particle size distribution after introducing ZnX2. It was speculated that ZnX2 was bound to the surface of QDs as a Z-type ligand, which not only passivated surface defects and suppressed the emission of defect states but also prevented Ostwald ripening. The InP cores were also activated by ZnX2, which made the growth of the ZnSeS shell more favorable. The photoluminescence properties started to be improved significantly only when the amount of ZnX2 exceeded 0.5 mmol. As the amount increased, more ZnX2 was distributed around the QDs to form a ligand layer, which prevented the shell precursor from crossing the ligand layer to the surface of the InP core, thus reducing the size of the InP/ZnSeS/ZnS QDs. This work revealed a new role of ZnX2 and found a method for InP QDs with high brightness and low FWHM by the mid-synthetic modification, which would inspire the synthesis of even better InP QDs.
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Affiliation(s)
- Hui-Ling Hu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan430072, P. R. China
| | - Hao Hao
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan430072, P. R. China
| | - Xue Ren
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan430072, P. R. China
| | - Zhe-Yong Chen
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan430072, P. R. China
| | - Meng Liu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan430072, P. R. China
| | - Yi Liu
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan430072, P. R. China.,College of Chemistry and Environmental Engineering, Wuhan Polytechnic University, Wuhan430023, P. R. China
| | - Feng-Lei Jiang
- Sauvage Center for Molecular Sciences, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan430072, P. R. China
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7
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van Embden J, Gross S, Kittilstved KR, Della Gaspera E. Colloidal Approaches to Zinc Oxide Nanocrystals. Chem Rev 2023; 123:271-326. [PMID: 36563316 DOI: 10.1021/acs.chemrev.2c00456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Zinc oxide is an extensively studied semiconductor with a wide band gap in the near-UV. Its many interesting properties have found use in optics, electronics, catalysis, sensing, as well as biomedicine and microbiology. In the nanoscale regime the functional properties of ZnO can be precisely tuned by manipulating its size, shape, chemical composition (doping), and surface states. In this review, we focus on the colloidal synthesis of ZnO nanocrystals (NCs) and provide a critical analysis of the synthetic methods currently available for preparing ZnO colloids. First, we outline key thermodynamic considerations for the nucleation and growth of colloidal nanoparticles, including an analysis of different reaction methodologies and of the role of dopant ions on nanoparticle formation. We then comprehensively review and discuss the literature on ZnO NC systems, including reactions in polar solvents that traditionally occur at low temperatures upon addition of a base, and high temperature reactions in organic, nonpolar solvents. A specific section is dedicated to doped NCs, highlighting both synthetic aspects and structure-property relationships. The versatility of these methods to achieve morphological and compositional control in ZnO is explicated. We then showcase some of the key applications of ZnO NCs, both as suspended colloids and as deposited coatings on supporting substrates. Finally, a critical analysis of the current state of the art for ZnO colloidal NCs is presented along with existing challenges and future directions for the field.
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Affiliation(s)
- Joel van Embden
- School of Science, RMIT University, MelbourneVictoria, 3001, Australia
| | - Silvia Gross
- Dipartimento di Scienze Chimiche, Università degli Studi di Padova, 35131Padova, Italy.,Karlsruher Institut für Technologie (KIT), Institut für Technische Chemie und Polymerchemie (ITCP), Engesserstrasse 20, 76131Karlsruhe, Germany
| | - Kevin R Kittilstved
- Department of Chemistry, University of Massachusetts Amherst, Amherst, Massachusetts01003, United States
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8
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Kim J, Kang D, Kang S, Kim BH, Park J. Coalescence dynamics of platinum group metal nanoparticles revealed by liquid-phase TEM. iScience 2022; 25:104699. [PMID: 35880046 PMCID: PMC9307684 DOI: 10.1016/j.isci.2022.104699] [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: 11/29/2021] [Revised: 05/17/2022] [Accepted: 06/27/2022] [Indexed: 10/31/2022] Open
Abstract
Coalescence, one of the major pathways observed in the growth of nanoparticles, affects the structural diversity of the synthesized nanoparticles in terms of sizes, shapes, and grain boundaries. As coalescence events occur transiently during the growth of nanoparticles and are associated with the interaction between nanoparticles, mechanistic understanding is challenging. The ideal platform to study coalescence events may require real-time tracking of nanoparticle growth trajectories with quantitative analysis for coalescence events. Herein, we track nanoparticle growth trajectories using liquid-cell transmission electron microscopy (LTEM) to investigate the role of coalescence in nanoparticle formation and their morphologies. By evaluating multiple coalescence events for different platinum group metals, we reveal that the surface energy and ligand binding energy determines the rate of the reshaping process and the resulting final morphology of coalesced nanoparticles. The coalescence mechanism, based on direct LTEM observation explains the structures of noble metal nanoparticles that emerge in colloidal synthesis. Image processing of in situ liquid cell TEM image Size-dependent coalescence behaviors of metal nanoparticles Different kinetics of Pt and Pd nanoparticles owing to their different surface energies Reshaping kinetics determines the final morphology of coalesced nanoparticles
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9
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Text-mined dataset of gold nanoparticle synthesis procedures, morphologies, and size entities. Sci Data 2022; 9:234. [PMID: 35618761 PMCID: PMC9135747 DOI: 10.1038/s41597-022-01321-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 04/08/2022] [Indexed: 12/13/2022] Open
Abstract
Gold nanoparticles are highly desired for a range of technological applications due to their tunable properties, which are dictated by the size and shape of the constituent particles. Many heuristic methods for controlling the morphological characteristics of gold nanoparticles are well known. However, the underlying mechanisms controlling their size and shape remain poorly understood, partly due to the immense range of possible combinations of synthesis parameters. Data-driven methods can offer insight to help guide understanding of these underlying mechanisms, so long as sufficient synthesis data are available. To facilitate data mining in this direction, we have constructed and made publicly available a dataset of codified gold nanoparticle synthesis protocols and outcomes extracted directly from the nanoparticle materials science literature using natural language processing and text-mining techniques. This dataset contains 5,154 data records, each representing a single gold nanoparticle synthesis article, filtered from a database of 4,973,165 publications. Each record contains codified synthesis protocols and extracted morphological information from a total of 7,608 experimental and 12,519 characterization paragraphs. Measurement(s) | gold nanoparticle morphology • gold nanoparticle size • gold nanoparticle synthesis data | Technology Type(s) | natural language processing |
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10
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Chen PZ, Clasky AJ, Gu FX. Theoretical framework and experimental methodology to elucidate the supersaturation dynamics of nanocrystal growth. NANOSCALE HORIZONS 2022; 7:376-384. [PMID: 35075470 DOI: 10.1039/d1nh00572c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Supersaturation is the fundamental parameter driving crystal formation, yet its dynamics in the growth of colloidal nanocrystals (NCs) remain poorly understood. Here, we demonstrate an approach to characterize supersaturation during classical NC growth. We develop a framework that relates noninvasive measurements of the temporal, size-dependent optical properties of growing NCs to the supersaturation dynamics underlying their growth. Using this approach, we investigate the seed-mediated growth of colloidal Au nanocubes, identifying a triphasic sequence of supersaturation dynamics: rapid monomer consumption, sustained supersaturation, and then gradual monomer depletion. These NCs undergo different shape evolutions in different phases of the supersaturation dynamics. As shown with the Au nanocubes, elucidated supersaturation profiles enable the prediction of growth profiles of NCs. We then apply these insights to rationally modulate NC shape evolutions, decreasing the yield of impurity products. Our findings reveal that the supersaturation dynamics of NC growth can be more complex than previously understood. As our approach is applicable to many types of NCs undergoing classical growth, this work presents an initial step towards more deeply interpreting the phenomena governing nanoscale crystal growth and provides insight for the rational design of NCs.
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Affiliation(s)
- Paul Z Chen
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada.
| | - Aaron J Clasky
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada.
| | - Frank X Gu
- Department of Chemical Engineering & Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada.
- Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3G9, Canada
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11
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Nouneh K, Khaaissa Y, Talbi A, Taghzouti O, Belahmar A, El Mabrouk K, Zekriti M, El Mouakibi A, Oyama M. Improving Seeding Growth Method for Preparing Densely Attached Spherical Gold Nanoparticles on Solid Substrate. INTERNATIONAL JOURNAL OF NANOSCIENCE 2022. [DOI: 10.1142/s0219581x21500563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this paper, a modified seed-mediated growth approach to produce gold nanoparticles through HAuCl4 chemical reduction in water fabricated by growth process on indium tin oxide (ITO) was proposed. Particular attention was devoted to exploring the seeding and growth number cycle process in the formation of Au nanoparticles on the ITO surface. In agreement with the assumed analytical model, we have found that the absorbance maximum intensity [Formula: see text] depends substantially on the metal nanoparticles’ sizes, shape and density on the ITO surface. The deposited nanoparticles’ synthesized parameters were evaluated by the surface images obtained using field emission scanning electron microscopy (FE-SEM), UV-Vis spectroscopy and electrochemical measurements. The results show that the electrochemical responses of the as-prepared sample were significantly improved, in particular for the 2-cycle seeded particles followed by one-cycle growth.
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Affiliation(s)
- K. Nouneh
- Laboratory of Materials Physics & Subatomics, Department of Physics, Faculty of Science, Ibn Tofail University, BP. 242 14000, Kenitra, Morocco
| | - Y. Khaaissa
- Laboratory of Materials Physics & Subatomics, Department of Physics, Faculty of Science, Ibn Tofail University, BP. 242 14000, Kenitra, Morocco
| | - A. Talbi
- Laboratory of Materials Physics & Subatomics, Department of Physics, Faculty of Science, Ibn Tofail University, BP. 242 14000, Kenitra, Morocco
| | - O. K. Taghzouti
- Laboratory of Materials Physics & Subatomics, Department of Physics, Faculty of Science, Ibn Tofail University, BP. 242 14000, Kenitra, Morocco
- Euromed Research Center, Euromed Engineering Faculty, Euromed University of Fes, Eco-Campus, Campus UEMF BP51, Fes, Morocco
| | - A. Belahmar
- Laboratory of Materials Physics & Subatomics, Department of Physics, Faculty of Science, Ibn Tofail University, BP. 242 14000, Kenitra, Morocco
| | - K. El Mabrouk
- Euromed Research Center, Euromed Engineering Faculty, Euromed University of Fes, Eco-Campus, Campus UEMF BP51, Fes, Morocco
| | - M. Zekriti
- Euromed Research Center, Euromed Engineering Faculty, Euromed University of Fes, Eco-Campus, Campus UEMF BP51, Fes, Morocco
| | | | - M. Oyama
- Nanomaterials Chemistry Laboratory, Department of Materials Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8520, Japan
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12
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Hydrothermal synthesis and characterization of quartz nanocrystals — Implications from a simple kinetic growth model. KOREAN J CHEM ENG 2022. [DOI: 10.1007/s11814-021-0996-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Naughton KL, Boedicker JQ. Simulations to Aid in the Design of Microbes for Synthesis of Metallic Nanomaterials. ACS Synth Biol 2021; 10:3475-3488. [PMID: 34807578 DOI: 10.1021/acssynbio.1c00412] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Microbes are champions of nanomaterial synthesis. By virtue of their incredible native range─from thermal vents to radioactive soil─microbes evolved tools to thrive on inorganic material, and, in their normal course of living, forge nanomaterials. In recent decades, synthetic biologists have engineered a vast array of functional nanomaterials using genetic tools that control the natural ability of bacteria to perform complex redox chemistry, maintain steep chemical gradients, and express biomolecular scaffolds. Leveraging microbial biology can lead to intricate nanomaterial architectures whose design and assembly exists beyond the ken of inorganic methods. Theories enumerating microbial nanomaterial synthesis are spare, however, despite the advantage they could offer. Here, we describe a theoretical approach to simulating biogenic nanomaterial synthesis that incorporates key features and parameters of Gram-negative bacteria. By adapting previously verified inorganic theories of nanoparticle synthesis, we recapitulate past biogenic experiments, such as the ability to localize nanoparticle synthesis or regulate nucleation of specific nanomaterials. Moreover, the simulation offers direction in the design of future experiments. Our results demonstrate the promise of marrying experimental and theoretical approaches to microbial nanomaterial synthesis.
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Affiliation(s)
- Kyle L. Naughton
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484, United States
| | - James Q. Boedicker
- Department of Physics and Astronomy, University of Southern California, Los Angeles, California 90089-0484, United States
- Department of Biological Sciences, University of Southern California, Los Angeles, California 90089-0371, United States
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14
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Chang H, Bootharaju MS, Lee S, Kim JH, Kim BH, Hyeon T. To inorganic nanoparticles via nanoclusters: Nonclassical nucleation and growth pathway. B KOREAN CHEM SOC 2021. [DOI: 10.1002/bkcs.12388] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hogeun Chang
- Center for Nanoparticle Research Institute for Basic Science (IBS) Seoul Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes Seoul National University Seoul Republic of Korea
| | - Megalamane S. Bootharaju
- Center for Nanoparticle Research Institute for Basic Science (IBS) Seoul Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes Seoul National University Seoul Republic of Korea
| | - Sanghwa Lee
- Center for Nanoparticle Research Institute for Basic Science (IBS) Seoul Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes Seoul National University Seoul Republic of Korea
| | - Jeong Hyun Kim
- Center for Nanoparticle Research Institute for Basic Science (IBS) Seoul Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes Seoul National University Seoul Republic of Korea
| | - Byung Hyo Kim
- Center for Nanoparticle Research Institute for Basic Science (IBS) Seoul Republic of Korea
- Department of Organic Materials and Fiber Engineering Soongsil University Seoul Republic of Korea
| | - Taeghwan Hyeon
- Center for Nanoparticle Research Institute for Basic Science (IBS) Seoul Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes Seoul National University Seoul Republic of Korea
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15
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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]
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16
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Baccarella A, Garrard R, Beauvais M, Bednarksi U, Fischer S, Abeykoon AM, Chapman K, Phillips B, Parise J, Simonson J. Cluster mediated conversion of amorphous Al(OH)3 to γ-AlOOH. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122340] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Wei X, Kershaw SV, Huang X, Jiao M, Beh CC, Liu C, Sarmadi M, Rogach AL, Jing L. Continuous Flow Synthesis of Persistent Luminescent Chromium-Doped Zinc Gallate Nanoparticles. J Phys Chem Lett 2021; 12:7067-7075. [PMID: 34291946 DOI: 10.1021/acs.jpclett.1c01767] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Near-infrared persistent luminescent (or afterglow) nanoparticles with the biologically appropriate size are promising materials for background-free imaging applications, while the conventional batch synthesis hardly allows for reproducibility in controlling particle size because of the random variations of reaction parameters. Here, highly efficient chemistry was matched with an automated continuous flow approach for directly synthesizing differently sized ZnGa2O4:Cr3+ (ZGC) nanoparticles exhibiting long persistent luminescence. The key flow factors responsible for regulating the particle formation process, especially the high pressure-temperature and varied residence time, were investigated to be able to tune the particle size from 2 to 6 nm and to improve the persistent luminescence. Upon silica shell encapsulation of the nanoparticles accompanied by an annealing process, the persistent luminescence of the resulting particles was remarkably enhanced. High-fidelity automated flow chemistry demonstrated here offers an alternative for producing ZGC nanoparticles and will be helpful for other compositionally complex metal oxide nanoparticles.
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Affiliation(s)
- Xiaojun Wei
- Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Bei Yi Jie 2, Zhong Guan Cun, Beijing 100190, China
| | - Stephen V Kershaw
- Department of Materials Science and Engineering & Centre for Functional Photonics, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon 999077, Hong Kong SAR, China
| | - Xiaodan Huang
- Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Bei Yi Jie 2, Zhong Guan Cun, Beijing 100190, China
| | - Mingxia Jiao
- Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Bei Yi Jie 2, Zhong Guan Cun, Beijing 100190, China
- Key Laboratory of Sensor Analysis of Tumor Marker Ministry of Education, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Chau Chun Beh
- Western Australia School of Mines: Minerals, Energy and Chemical Engineering, Curtin University, Bentley, Western Australia 6102, Australia
| | - Chunyan Liu
- Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Bei Yi Jie 2, Zhong Guan Cun, Beijing 100190, China
| | - Morteza Sarmadi
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Andrey L Rogach
- Department of Materials Science and Engineering & Centre for Functional Photonics, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon 999077, Hong Kong SAR, China
| | - Lihong Jing
- Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Bei Yi Jie 2, Zhong Guan Cun, Beijing 100190, China
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18
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Kim T, Park S, Jeong S. Diffusion dynamics controlled colloidal synthesis of highly monodisperse InAs nanocrystals. Nat Commun 2021; 12:3013. [PMID: 34021149 PMCID: PMC8140152 DOI: 10.1038/s41467-021-23259-w] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 04/07/2021] [Indexed: 11/08/2022] Open
Abstract
Highly monodisperse colloidal InAs quantum dots (QDs) with superior optoelectronic properties are promising candidates for various applications, including infrared photodetectors and photovoltaics. Recently, a synthetic process involving continuous injection has been introduced to synthesize uniformly sized InAs QDs. Still, synthetic efforts to increase the particle size of over 5 nm often suffer from growth suppression. Secondary nucleation or interparticle ripening during the growth accompanies the inhomogeneity in size as well. In this study, we propose a growth model for the continuous synthetic processing of colloidal InAs QDs based on molecular diffusion. The experimentally validated model demonstrates how precursor solution injection reduces monomer flux, limiting particle growth during synthesis. As predicted by our model, we control the diffusion dynamics by tuning reaction volume, precursor concentration, and injection rate of precursor. Through diffusion-dynamics-control in the continuous process, we synthesize the InAs QDs with a size over 9.0-nm (1Smax of 1600 nm) with a narrow size distribution (12.2%). Diffusion-dynamics-controlled synthesis presented in this study effectively manages the monomer flux and thus overcome monomer-reactivity-originating size limit of nanocrystal growth in solution.
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Affiliation(s)
- Taewan Kim
- Department of Energy Science (DOES) and Center for Artificial Atoms, Sungkyunkwan University (SKKU), Suwon, Gyeonggi-do, South Korea
| | - Seongmin Park
- Department of Energy Science (DOES) and Center for Artificial Atoms, Sungkyunkwan University (SKKU), Suwon, Gyeonggi-do, South Korea
| | - Sohee Jeong
- Department of Energy Science (DOES) and Center for Artificial Atoms, Sungkyunkwan University (SKKU), Suwon, Gyeonggi-do, South Korea.
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19
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Prins PT, Montanarella F, Dümbgen K, Justo Y, van der Bok JC, Hinterding SOM, Geuchies JJ, Maes J, De Nolf K, Deelen S, Meijer H, Zinn T, Petukhov AV, Rabouw FT, De Mello Donega C, Vanmaekelbergh D, Hens Z. Extended Nucleation and Superfocusing in Colloidal Semiconductor Nanocrystal Synthesis. NANO LETTERS 2021; 21:2487-2496. [PMID: 33661650 DOI: 10.1021/acs.nanolett.0c04813] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Hot-injection synthesis is renowned for producing semiconductor nanocolloids with superb size dispersions. Burst nucleation and diffusion-controlled size focusing during growth have been invoked to rationalize this characteristic yet experimental evidence supporting the pertinence of these concepts is scant. By monitoring a CdSe synthesis in-situ with X-ray scattering, we find that nucleation is an extended event that coincides with growth during 15-20% of the reaction time. Moreover, we show that size focusing outpaces predictions of diffusion-limited growth. This observation indicates that nanocrystal growth is dictated by the surface reactivity, which drops sharply for larger nanocrystals. Kinetic reaction simulations confirm that this so-called superfocusing can lengthen the nucleation period and promote size focusing. The finding that narrow size dispersions can emerge from the counteracting effects of extended nucleation and reaction-limited size focusing ushers in an evidence-based perspective that turns hot injection into a rational scheme to produce monodisperse semiconductor nanocolloids.
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Affiliation(s)
| | | | - Kim Dümbgen
- Physics and Chemistry of Nanostructures, Ghent University, B-9000 Gent, Belgium
| | - Yolanda Justo
- Physics and Chemistry of Nanostructures, Ghent University, B-9000 Gent, Belgium
| | | | | | | | - Jorick Maes
- Physics and Chemistry of Nanostructures, Ghent University, B-9000 Gent, Belgium
| | - Kim De Nolf
- Physics and Chemistry of Nanostructures, Ghent University, B-9000 Gent, Belgium
| | | | | | | | - Andrei V Petukhov
- Laboratory of Physical Chemistry, Eindhoven University of Technology, 5612 AZ Eindhoven, The Netherlands
| | | | | | | | - Zeger Hens
- Physics and Chemistry of Nanostructures, Ghent University, B-9000 Gent, Belgium
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20
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Zhu X, Blanco E, Bhatti M, Borrion A. Impact of metallic nanoparticles on anaerobic digestion: A systematic review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 757:143747. [PMID: 33257063 DOI: 10.1016/j.scitotenv.2020.143747] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/30/2020] [Accepted: 11/01/2020] [Indexed: 06/12/2023]
Abstract
Anaerobic digestion (AD) is one of the most energy-efficient waste treatment technologies for biodegradable wastes. Owing to the increasing trend of metallic nanoparticle applications in industry, they are ubiquitous to the waste streams, which may lead to remarkable impacts on the performance of the AD process. This review addresses the knowledge gaps and summarises the findings from the academic articles published from 2010 to 2019 focusing on the influences on both AD processes of biochemical hydrogen-generation and methane-production from selected metallic nano-materials. Both qualitative and quantitative analyses were conducted with selected indicators to evaluate the metallic nanoparticles' influences on the AD process. The selected metallic nanoparticles were grouped in the view of their chemical formulations aiming to point out the possible mechanisms behind their effects on AD processes. In summary, most metallic nanoparticles with trace-element-base (e.g. iron, cobalt, nickel) have positive effects on both AD hydrogen-generation and methane-production processes in terms of gas production, effluent quality, as well as process optimisation. Within an optimum concentration, they serve as key nutrients providers, aid key enzymes and co-enzymes synthesis, and thus stimulate anaerobic microorganism activities. As for the nano-additives without trace-element base, their positive influences are relied on providing active sites for the microorganism, as well as absorbing inhibitory factors. Moreover, comparisons of these nano-additives' impacts on the two gas-production phases were conducted, while methane-production phases are found to be more sensitive to additions of these nanoparticles then hydrogen-production phase. Research perspectives and research gaps in this area are discussed.
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Affiliation(s)
- Xiaowen Zhu
- Department of Civil, Environmental and Geomatic Engineering, University College London, UK
| | - Edgar Blanco
- Anaero Technology Limited, Cowley Road, Cambridge, UK
| | - Manni Bhatti
- Department of Civil, Environmental and Geomatic Engineering, University College London, UK
| | - Aiduan Borrion
- Department of Civil, Environmental and Geomatic Engineering, University College London, UK.
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21
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Wang D, Xing M, Wei Y, Wang L, Wang R, Shen Q. Modeling of Nucleation and Growth in the Synthesis of PbS Colloidal Quantum Dots Under Variable Temperatures. ACS OMEGA 2021; 6:3701-3710. [PMID: 33585750 PMCID: PMC7876681 DOI: 10.1021/acsomega.0c05223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 12/23/2020] [Indexed: 05/03/2023]
Abstract
Lead sulfur colloidal quantum dots (PbS CQDs) are a kind of IV-VI semiconductor nanocrystals which have attracted enormous interest in recent years because of their unique physicochemical properties. Controlling size, size distribution, and yield of PbS CQDs plays key priorities in order to improve their properties when they are applied in the photovoltaics and energy storage applications. Despite many systematical studies in PbS CQD syntheses with various perspectives, details of the formation mechanism impacted on the size, concentration, and size distribution of PbS CQDs in complicated reaction conditions remain poorly understood. In this work, an improved kinetic rate equation (IKRE) model is employed to describe PbS CQD formation under variable solution temperatures. After establishing the necessary discretized equations and reviewing the link between model parameters and experimental information, a parametric study is performed to explore the model's feature. In addition, a set of experimental data has been compared with the result of IKRE model fits, which would be used to obtain corresponding thermodynamic and kinetic parameters that can further affect the CQD growth over longer timescales. This method builds up the relationship between the nucleation and Ostwald ripening stage that would provide the possibility for future large-scale manufacturing of CQDs.
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Affiliation(s)
- Dandan Wang
- Beijing
Engineering Research Centre of Sustainable Energy and Buildings, School
of Environment and Energy Engineering, Beijing
University of Civil Engineering and Architecture, Beijing 100044, China
| | - Meibo Xing
- Beijing
Engineering Research Centre of Sustainable Energy and Buildings, School
of Environment and Energy Engineering, Beijing
University of Civil Engineering and Architecture, Beijing 100044, China
| | - Yuyao Wei
- Beijing
Engineering Research Centre of Sustainable Energy and Buildings, School
of Environment and Energy Engineering, Beijing
University of Civil Engineering and Architecture, Beijing 100044, China
| | - Longxiang Wang
- Beijing
Engineering Research Centre of Sustainable Energy and Buildings, School
of Environment and Energy Engineering, Beijing
University of Civil Engineering and Architecture, Beijing 100044, China
| | - Ruixiang Wang
- Beijing
Engineering Research Centre of Sustainable Energy and Buildings, School
of Environment and Energy Engineering, Beijing
University of Civil Engineering and Architecture, Beijing 100044, China
- . Phone: +86-10-68322133. Fax: +86-10-68322133
| | - Qing Shen
- Faculty
of Informatics and Engineering, The University
of Electro-Communications, Chofu, Tokyo 182-8585, Japan
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22
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Leffler V, Ehlert S, Förster B, Dulle M, Förster S. Nanoparticle Heat-Up Synthesis: In Situ X-ray Diffraction and Extension from Classical to Nonclassical Nucleation and Growth Theory. ACS NANO 2021; 15:840-856. [PMID: 33393769 DOI: 10.1021/acsnano.0c07359] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Heat-up synthesis routes are very commonly used for the controlled large-scale production of semiconductor and magnetic nanoparticles with narrow size distribution and high crystallinity. To obtain fundamental insights into the nucleation and growth kinetics is particularly demanding, because these procedures involve heating to temperatures above 300 °C. We designed a sample environment to perform in situ SAXS/WAXS experiments to investigate the nucleation and growth kinetics of iron oxide nanoparticles during heat-up synthesis up to 320 °C. The analysis of the growth curves for varying heating rates, Fe/ligand ratios, and plateau temperatures shows that the kinetics proceeds via a characteristic sequence of three phases: an induction Phase I, a final growth Phase III, and an intermediate Phase II, which can be divided into an early phase with the evolution and subsequent dissolution of an amorphous transient state, and a late phase, where crystalline particle nucleation and aggregation occurs. We extended classical nucleation and growth theory to account for an amorphous transient state and particle aggregation during the nucleation and growth phases. We find that this nonclassical theory is able to quantitatively describe all measured growth curves. The model provides fundamental insights into the underlying kinetic processes especially in the complex Phase II with the occurrence of a transient amorphous state, the nucleation of crystalline primary particles, particle growth, and particle aggregation proceeding on overlapping time scales. The described in situ experiments together with the extension of the classical nucleation and growth model highlight the two most important features of nonclassical nucleation and growth routes, i.e., the formation of intermediate or transient species and particle aggregation processes. They thus allow us to quantitatively understand, predict, and control nanoparticle nucleation and growth kinetics for a wide range of nanoparticle systems and synthetic procedures.
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Affiliation(s)
- Vanessa Leffler
- Jülich Centre for Neutron Science (JCNS-1/IBI-8), Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute of Physical Chemistry, RWTH Aachen University, 52074 Aachen, Germany
| | - Sascha Ehlert
- Jülich Centre for Neutron Science (JCNS-1/IBI-8), Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Beate Förster
- Institute of Physical Chemistry, RWTH Aachen University, 52074 Aachen, Germany
- Ernst Ruska Center, Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Martin Dulle
- Jülich Centre for Neutron Science (JCNS-1/IBI-8), Forschungszentrum Jülich, 52425 Jülich, Germany
| | - Stephan Förster
- Jülich Centre for Neutron Science (JCNS-1/IBI-8), Forschungszentrum Jülich, 52425 Jülich, Germany
- Institute of Physical Chemistry, RWTH Aachen University, 52074 Aachen, Germany
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23
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Chandrasiri HB, Kim EB, Snee PT. Sterically Encumbered Tris(trialkylsilyl) Phosphine Precursors for Quantum Dot Synthesis. Inorg Chem 2020; 59:15928-15935. [PMID: 33040524 DOI: 10.1021/acs.inorgchem.0c02440] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of nanomaterials with a narrow size distribution is challenging, especially for III-V semiconductor nanoparticles (also known as quantum dots). Concerning phosphides, this issue has been largely attributed the use of overly reactive precursors. The problem is exacerbated due to the narrow range of competent reagents for III-V semiconductor syntheses. We report the use of sterically encumbered tris(triethylsilyl) phosphine and tris(tributylsilyl) phosphine for InP quantum dot (QD) synthesis among others. The hypothesis was that these reagents are less reactive than the near-ubiquitous precursor tris(trimethylsilyl) phosphine and can be used to create more homogeneous materials. It was found that the InP products' quantum yields and emission color saturation (fwhm) were improved, but not to the levels realized in CdSe QDs. Regardless, these reagents have other positive attributes; they are less pyrophoric and can be applied toward the synthesis of II-V semiconductors and organophosphorus compounds. Concerning safe practices, we demonstrate that ammonium bifluoride is an effective replacement for highly toxic HF for the post-treatment of III-V semiconductor quantum dots.
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Affiliation(s)
- Hashini B Chandrasiri
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061 United States
| | - Eun Byoel Kim
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061 United States
| | - Preston T Snee
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061 United States
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24
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Hassanabadi E, Latifi M, Gualdrón-Reyes AF, Masi S, Yoon SJ, Poyatos M, Julián-López B, Mora-Seró I. Ligand & band gap engineering: tailoring the protocol synthesis for achieving high-quality CsPbI 3 quantum dots. NANOSCALE 2020; 12:14194-14203. [PMID: 32602873 DOI: 10.1039/d0nr03180a] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Hot-injection has become the most widespread method used for the synthesis of perovskite quantum dots (QDs) with enormous interest for application in optoelectronic devices. However, there are some aspects of the chemistry involved in this synthesis that have not been completely investigated. In this work, we synthesized ultra-high stable CsPbI3 QDs for more than 15 months by controlling two main parameters: synthesis temperature and the concentration of capping ligands. By increasing the capping ligand concentration during the QD synthesis, we were able to grow CsPbI3 in a broad range of temperatures, improving the photophysical properties of QDs by increasing the synthesis temperature. We achieved the maximum photoluminescence quantum yield (PLQY) of 93% for a synthesis conducted at 185 °C, establishing an efficient surface passivation to decrease the density of non-radiative recombination sites. Under these optimized synthesis conditions, deep red LEDs with an External Quantum Efficiency (EQE) higher than 6% were achieved. The performance of these LEDs is higher than that of the reported CsPbI3 QD-LEDs containing standard capping agents, without additional elements or further element exchange. We show that it is possible to produce stable CsPbI3 QDs with high PLQY and red emission beyond the requirement of the Rec. 2020 standards for red color.
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Affiliation(s)
- Ehsan Hassanabadi
- Institute of Advanced Materials (INAM), University Jaume I, Avenida de Vicent Sos Baynat, s/n, 12071 Castellón de la Plana, Castellón, Spain.
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25
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Moraes DA, Souza Junior JB, Ferreira FF, Mogili NVV, Varanda LC. Gold nanowire growth through stacking fault mechanism by oleylamine-mediated synthesis. NANOSCALE 2020; 12:13316-13329. [PMID: 32555890 DOI: 10.1039/d0nr03669b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Tadpole-like gold nanowires were obtained by the oleylamine-mediated synthesis presenting an unusual mixture of fcc and hcp phases. Structural analyses were performed to understand their structure and growth using aberration-corrected high-resolution scanning transmission electron microscopy and electron diffraction at the tail region of tadpoles showing that the anisotropic shape occurred due to stacking fault defects. Stacking faults and twin defects are responsible for the hcp phase inferring a defect dependent growth. The stacking fault model used in X-ray diffraction (XRD) refinement resulted in 60% of hcp stacking sequences. Temperature-dependent XRD analyses showed that the faults become unstable around 120 °C, and it is completely converted to the fcc phase at 230 °C. We attribute the nanowire formation to a stacking fault mechanism of growth that begins in the later stage of nanoparticle growth. The UV-Vis spectrum presented two localized surface plasmon resonance bands at 500 nm and from 800 nm extending to near-infrared, associated with transverse and longitudinal modes, respectively. A surprising ferromagnetic behavior is also observed with a blocking temperature near 300 K.
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Affiliation(s)
- Daniel A Moraes
- Colloidal Materials Group, Physical-Chemistry Department, Instituto de Química de São Carlos, Universidade de São Paulo, São Carlos 13566-590, SP, Brazil.
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26
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Cunningham PD, Coropceanu I, Mulloy K, Cho W, Talapin DV. Quantized Reaction Pathways for Solution Synthesis of Colloidal ZnSe Nanostructures: A Connection between Clusters, Nanowires, and Two-Dimensional Nanoplatelets. ACS NANO 2020; 14:3847-3857. [PMID: 32105062 DOI: 10.1021/acsnano.9b09051] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The morphology of nanocrystals serves as a powerful handle to modulate their functional properties. For semiconducting nanostructures, the shape is no less important than the size and composition, in terms of determining the electronic structure. For example, in the case of nanoplatelets (NPLs), their two-dimensional (2D) electronic structure and atomic precision along the axis of quantum confinement makes them well-suited as pure color emitters and optical gain media. In this study, we describe synthetic efforts to develop ZnSe NPLs emitting in the ultraviolet part of the spectrum. We focus on two populations of NPLs, the first having a sharp absorption onset at 345 nm and a previously unreported species with an absorption onset at 380 nm. Interestingly, we observe that the nanoplatelets are one step in a quantized reaction pathway that starts with (zero-dimensional (0D)) magic-sized clusters, then proceeds through the formation of (one-dimensional (1D)) nanowires toward the (2D) "345 nm" species of NPLs, which finally interconvert into the "380 nm" NPL species. We seek to rationalize this evolution of the morphology, in terms of a general free-energy landscape, which, under reaction control, allows for the isolation of well-defined structures, while thermodynamic control leads to the formation of three-dimensional (3D) nanocrystals.
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Affiliation(s)
- Patrick D Cunningham
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
| | - Igor Coropceanu
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
| | - Kavan Mulloy
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
| | - Wooje Cho
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
| | - Dmitri V Talapin
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, United States
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27
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Garcia PRAF, Prymak O, Grasmik V, Pappert K, Wlysses W, Otubo L, Epple M, Oliveira CLP. An in situ SAXS investigation of the formation of silver nanoparticles and bimetallic silver-gold nanoparticles in controlled wet-chemical reduction synthesis. NANOSCALE ADVANCES 2020; 2:225-238. [PMID: 36133991 PMCID: PMC9418936 DOI: 10.1039/c9na00569b] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 11/11/2019] [Indexed: 05/22/2023]
Abstract
We present a study on the formation of silver (Ag) and bimetallic silver-gold (AgAu) nanoparticles monitored by in situ SAXS as well as by ex situ TEM, XRD and UV-vis analysis in a flow reactor at controlled reaction temperature. The formation mechanism of the nanoparticles is derived from the structural parameters obtained from the experimental data. The evolution of the average particle size of pure and alloyed nanoparticles shows that the particle growth occurs initially by a coalescence mechanism. The later growth of pure silver nanoparticles is well described by Ostwald ripening and for the alloyed nanoparticles by a process with a significantly slower growth rate. Additionally, the SAXS data of pure silver nanoparticles revealed two major populations of nanoparticles, the first one with a continuous crystal growth to a saturation plateau, and the second one probably with a continuous emergence of small new crystals. The particle sizes obtained by SAXS agree well with the results from transmission electron microscopy and X-ray diffraction. The present study demonstrates the capability of an in situ investigation of synthesis processes using a laboratory based SAXS instrument. Online monitoring of the synthesis permitted a detailed investigation of the structural evolution of the system.
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Affiliation(s)
- Paulo R A F Garcia
- Institute of Physics, University of São Paulo Rua do Matão 1371 São Paulo 05508-090 Brazil
| | - Oleg Prymak
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen Universitaetsstr. 5-7 45117 Essen Germany
| | - Viktoria Grasmik
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen Universitaetsstr. 5-7 45117 Essen Germany
| | - Kevin Pappert
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen Universitaetsstr. 5-7 45117 Essen Germany
| | - Wagner Wlysses
- Institute of Physics, University of São Paulo Rua do Matão 1371 São Paulo 05508-090 Brazil
| | - Larissa Otubo
- Laboratório de Microscopia e Microanálises (LMM), Instituto de Pesquisas Energéticas e Nucleares, IPEN-CNEN/SP 05508-000 São Paulo - SP Brazil
| | - Matthias Epple
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen Universitaetsstr. 5-7 45117 Essen Germany
| | - Cristiano L P Oliveira
- Institute of Physics, University of São Paulo Rua do Matão 1371 São Paulo 05508-090 Brazil
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28
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Pattadar DK, Zamborini FP. Effect of Size, Coverage, and Dispersity on the Potential-Controlled Ostwald Ripening of Metal Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:16416-16426. [PMID: 31647240 DOI: 10.1021/acs.langmuir.9b02421] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Here, we describe the size-dependent, electrochemically controlled Ostwald ripening of 1.6, 4, and 15 nm-diameter Au nanoparticles (NPs) attached to (3-aminopropyl)triethoxysilane (APTES)-modified glass/indium-tin-oxide electrodes. Holding the Au NP-coated electrodes at a constant negative potential of the dissolution potential in a bromide-containing electrolyte led to electrochemical Ostwald ripening of the different-sized Au NPs. The relative increase in the diameter of the NPs (Dfinal/Dinitial) during electrochemical Ostwald ripening increases with decreasing NP size, increasing applied potential, increasing NP population size dispersity, and increasing NP coverage on the electrodes. Monitoring the average size of the Au NPs as a function of time at a controlled potential allows the measurement of the Ostwald ripening rate. Anodic stripping voltammetry and electrochemical determination of the surface area-to-volume ratio provide fast and convenient size analysis for many different samples and conditions, with consistent sizes from scanning electron microscopy images for some samples. It is important to better understand electrochemical Ostwald ripening, especially under potential control, since it is a major process that occurs during the synthesis of metal NPs and leads to detrimental size instability during electrochemical applications.
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Affiliation(s)
- Dhruba K Pattadar
- Department of Chemistry , University of Louisville , Louisville , Kentucky 40292 , United States
| | - Francis P Zamborini
- Department of Chemistry , University of Louisville , Louisville , Kentucky 40292 , United States
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29
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Chen X, Wei M, Jiang S, Förster S. Two Growth Mechanisms of Thiol-Capped Gold Nanoparticles Controlled by Ligand Chemistry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:12130-12138. [PMID: 31442054 DOI: 10.1021/acs.langmuir.9b01864] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Thiols play an important role in the synthesis of well-defined nanoparticles (NPs) with tailored properties, but their effects on the formation kinetics of NPs are still under investigation. Here, we used in situ small-angle X-ray scattering (SAXS)/UV-vis spectroscopy and time-dependent transmission electron microscopy (TEM) to elucidate the role of thiols in the formation process of gold NPs (AuNPs) by changing the adding sequence between thiol ligand and reducing agent. Through quantitative analysis of in situ SAXS/UV-vis and TEM, detailed information on size, size distribution, the number of particles, optical properties, and the size evolution was obtained. Two different growth mechanisms of monodisperse AuNPs controlled by thiol ligand are exhibited: (i) thiol plays a dual role as a digestive ripening etchant and as a stabilizing ligand in the presence of a weak phosphine ligand. The digestive ripening mechanism involving the dissolution of bigger particles and subsequent deposition of monomers onto existing small NPs is responsible for producing narrowly dispersed NPs. (ii) Thiol acts as a strong stabilizing agent; in this case, the formation rate constant is quite slow, thus limiting the growth rate of NPs. Therefore, diffusion-limited growth mechanism is proposed for obtaining narrowly dispersed NPs with a diameter of 5.6 nm (12%). Our findings demonstrate that the formation of nearly monodisperse AuNPs with controllable size distribution could be realized by different growth mechanisms in the presence of thiol ligand.
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Affiliation(s)
- Xuelian Chen
- College of Materials Science and Engineering , Xi'an Shiyou University , 710065 Xi'an , P. R. China
| | - Meng Wei
- College of Materials Science and Engineering , Xi'an Shiyou University , 710065 Xi'an , P. R. China
| | - Shaohua Jiang
- College of Materials Science and Engineering , Nanjing Forestry University , 210037 Nanjing , P. R. China
| | - Stephan Förster
- JCNS-1/ICS-1 , Forschungszentrum Jülich , 52425 Jülich , Germany
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30
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Hazarika A, Fedin I, Hong L, Guo J, Srivastava V, Cho W, Coropceanu I, Portner J, Diroll BT, Philbin JP, Rabani E, Klie R, Talapin DV. Colloidal Atomic Layer Deposition with Stationary Reactant Phases Enables Precise Synthesis of “Digital” II–VI Nano-heterostructures with Exquisite Control of Confinement and Strain. J Am Chem Soc 2019; 141:13487-13496. [DOI: 10.1021/jacs.9b04866] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Abhijit Hazarika
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
| | - Igor Fedin
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
| | - Liang Hong
- Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Jinglong Guo
- Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Vishwas Srivastava
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
| | - Wooje Cho
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
| | - Igor Coropceanu
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
| | - Joshua Portner
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
| | - Benjamin T. Diroll
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, United States
| | - John P. Philbin
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Eran Rabani
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
- The Sackler Center for Computational Molecular and Materials Science, Tel Aviv University, Tel Aviv 69978, Israel
| | - Robert Klie
- Department of Physics, University of Illinois at Chicago, Chicago, Illinois 60607, United States
| | - Dmitri V. Talapin
- Department of Chemistry and James Franck Institute, University of Chicago, Chicago, Illinois 60637, United States
- Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, United States
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31
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Tessitore G, Mandl GA, Brik MG, Park W, Capobianco JA. Recent insights into upconverting nanoparticles: spectroscopy, modeling, and routes to improved luminescence. NANOSCALE 2019; 11:12015-12029. [PMID: 31120083 DOI: 10.1039/c9nr02291k] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The development of reliable and reproducible synthetic routes that produce monodisperse lanthanide-doped upconverting nanoparticles has resulted in an appreciable need to determine the mechanisms which govern upconversion luminescence at the nanoscale. New experimental and theoretical evidence explicates the quenching phenomena involved in the low luminescence efficiencies. A deeper understanding of the role of surfaces and defects in the quenching mechanisms and the properties of upconverting nanoparticles are of fundamental importance to develop nanomaterials with enhanced luminescence properties. Herein, we summarize the most recent spectroscopic investigations, which have enabled the scientific community to ascertain that the predominant source of quenching involved in the luminescence of lanthanide-doped upconverting nanoparticles can be attributed to surface-defects. Modeling of these mechanisms in nanomaterials supports the experimental findings and yields further insights into the surface phenomena, providing a predictive tool to improve the luminescent efficiencies in nanomaterials.
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Affiliation(s)
- Gabriella Tessitore
- Department of Chemistry and Biochemistry and Centre for NanoScience Research, Concordia University, 7141 Sherbrooke St. W. Montreal, Quebec, CanadaH4B 1R6.
| | - Gabrielle A Mandl
- Department of Chemistry and Biochemistry and Centre for NanoScience Research, Concordia University, 7141 Sherbrooke St. W. Montreal, Quebec, CanadaH4B 1R6.
| | - Mikhail G Brik
- College of Sciences, Chongqing University of Posts and Telecommunications, Chongqing 400065, People's Republic of China and Institute of Physics, University of Tartu, W. Ostwald Str. 1, Tartu 50411, Estonia and Institute of Physics, Jan Długosz University, Armii Krajowej 13/15, PL-42200 Częstochowa, Poland
| | - Wounjhang Park
- Department of Electrical, Computer & Energy Engineering, University of Colorado, Boulder, CO 80309-0425, USA
| | - John A Capobianco
- Department of Chemistry and Biochemistry and Centre for NanoScience Research, Concordia University, 7141 Sherbrooke St. W. Montreal, Quebec, CanadaH4B 1R6.
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32
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Ibáñez M, Genç A, Hasler R, Liu Y, Dobrozhan O, Nazarenko O, Mata MD, Arbiol J, Cabot A, Kovalenko MV. Tuning Transport Properties in Thermoelectric Nanocomposites through Inorganic Ligands and Heterostructured Building Blocks. ACS NANO 2019; 13:6572-6580. [PMID: 31185159 PMCID: PMC6595432 DOI: 10.1021/acsnano.9b00346] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 06/11/2019] [Indexed: 05/25/2023]
Abstract
Methodologies that involve the use of nanoparticles as "artificial atoms" to rationally build materials in a bottom-up fashion are particularly well-suited to control the matter at the nanoscale. Colloidal synthetic routes allow for an exquisite control over such "artificial atoms" in terms of size, shape, and crystal phase as well as core and surface compositions. We present here a bottom-up approach to produce Pb-Ag-K-S-Te nanocomposites, which is a highly promising system for thermoelectric energy conversion. First, we developed a high-yield and scalable colloidal synthesis route to uniform lead sulfide (PbS) nanorods, whose tips are made of silver sulfide (Ag2S). We then took advantage of the large surface-to-volume ratio to introduce a p-type dopant (K) by replacing native organic ligands with K2Te. Upon thermal consolidation, K2Te-surface modified PbS-Ag2S nanorods yield p-type doped nanocomposites with PbTe and PbS as major phases and Ag2S and Ag2Te as embedded nanoinclusions. Thermoelectric characterization of such consolidated nanosolids showed a high thermoelectric figure-of-merit of 1 at 620 K.
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Affiliation(s)
- Maria Ibáñez
- Institute
of Science and Technology Austria, Am Campus 1, 3400 Klosterneuburg, Austria
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, Zürich CH-8093, Switzerland
- Empa-Swiss
Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf CH-8600, Switzerland
| | - Aziz Genç
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST),
Campus UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain
- Department
of Metallurgy and Materials Engineering, Faculty of Engineering, Bartin University, 74100 Bartin, Turkey
| | - Roger Hasler
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, Zürich CH-8093, Switzerland
- Empa-Swiss
Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf CH-8600, Switzerland
| | - Yu Liu
- Institute
of Science and Technology Austria, Am Campus 1, 3400 Klosterneuburg, Austria
| | - Oleksandr Dobrozhan
- Catalonia
Energy Research Institute - IREC, Sant Adria del Besos, 08930 Barcelona, Spain
| | - Olga Nazarenko
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, Zürich CH-8093, Switzerland
- Empa-Swiss
Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf CH-8600, Switzerland
| | - María de
la Mata
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST),
Campus UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain
- Departamento
de Ciencia de los Materiales, Ing. Met. y Qca.Inorg., IMEYMAT, Universidad de Cádiz, 11510 Puerto Real, Spain
| | - Jordi Arbiol
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC and The Barcelona Institute of Science and Technology (BIST),
Campus UAB, Bellaterra, 08193 Barcelona, Catalonia, Spain
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Andreu Cabot
- Catalonia
Energy Research Institute - IREC, Sant Adria del Besos, 08930 Barcelona, Spain
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Maksym V. Kovalenko
- Institute
of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir Prelog Weg 1, Zürich CH-8093, Switzerland
- Empa-Swiss
Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, Dübendorf CH-8600, Switzerland
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33
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Evaluation of the effect of electrospun nanofibrous membrane on removal of diazinon from aqueous solutions. REACT FUNCT POLYM 2019. [DOI: 10.1016/j.reactfunctpolym.2019.03.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
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34
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Chang H, Kim BH, Jeong HY, Moon JH, Park M, Shin K, Chae SI, Lee J, Kang T, Choi BK, Yang J, Bootharaju MS, Song H, An SH, Park KM, Oh JY, Lee H, Kim MS, Park J, Hyeon T. Molecular-Level Understanding of Continuous Growth from Iron-Oxo Clusters to Iron Oxide Nanoparticles. J Am Chem Soc 2019; 141:7037-7045. [DOI: 10.1021/jacs.9b01670] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Hogeun Chang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Byung Hyo Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Hu Young Jeong
- UNIST Central Research Facilities (UCRF), Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jeong Hee Moon
- Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea
| | - Minwoo Park
- Department of Physics, Konkuk University, Seoul 05029, Republic of Korea
| | - Kwangsoo Shin
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Sue In Chae
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Jisoo Lee
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Taegyu Kang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Back Kyu Choi
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Jiwoong Yang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Megalamane S. Bootharaju
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyoin Song
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Seong Hee An
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyung Man Park
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | | | - Hoonkyung Lee
- Department of Physics, Konkuk University, Seoul 05029, Republic of Korea
| | - Myung Soo Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Jungwon Park
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
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35
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Shrestha A, Batmunkh M, Tricoli A, Qiao SZ, Dai S. Nahinfrarotaktive Bleichalkogenid‐Quantenpunkte: Herstellung, postsynthetischer Ligandenaustausch und Anwendungen in Solarzellen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201804053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Aabhash Shrestha
- School of Chemical Engineering The University of Adelaide Adelaide SA 5005 Australien
- Nanotechnology Research Laboratory, Research School of Engineering The Australian National University Canberra ACT 2601 Australien
| | - Munkhbayar Batmunkh
- School of Chemical Engineering The University of Adelaide Adelaide SA 5005 Australien
- College of Science and Engineering Flinders University Bedford Park Adelaide SA 5042 Australien
- Australian Institute for Bioengineering and Nanotechnology The University of Queensland Brisbane Queensland 4072 Australien
| | - Antonio Tricoli
- Nanotechnology Research Laboratory, Research School of Engineering The Australian National University Canberra ACT 2601 Australien
| | - Shi Zhang Qiao
- School of Chemical Engineering The University of Adelaide Adelaide SA 5005 Australien
| | - Sheng Dai
- School of Chemical Engineering The University of Adelaide Adelaide SA 5005 Australien
- Department of Chemical Engineering Brunel University London Uxbridge UB8 3 Großbritannien
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36
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Shrestha A, Batmunkh M, Tricoli A, Qiao SZ, Dai S. Near-Infrared Active Lead Chalcogenide Quantum Dots: Preparation, Post-Synthesis Ligand Exchange, and Applications in Solar Cells. Angew Chem Int Ed Engl 2019; 58:5202-5224. [PMID: 29878530 DOI: 10.1002/anie.201804053] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Indexed: 12/12/2022]
Abstract
Quantum dots (QDs) of lead chalcogenides (e.g. PbS, PbSe, and PbTe) are attractive near-infrared (NIR) active materials that show great potential in a wide range of applications, such as, photovoltaics (PV), optoelectronics, sensors, and bio-electronics. The surface ligand plays an essential role in the production of QDs, post-synthesis modification, and their integration to practical applications. Therefore, it is critically important that the influence of surface ligands on the synthesis and properties of QDs is well understood for their applications in various devices. In this Review we elaborate the application of colloidal synthesis techniques for the preparation of lead chalcogenide based QDs. We specifically focus on the influence of surface ligands on the synthesis of QDs and their solution-phase ligand exchange. Given the importance of lead chalcogenide QDs as potential light harvesters, we also pay particular attention to the current progress of these QDs in photovoltaic applications.
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Affiliation(s)
- Aabhash Shrestha
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia.,Nanotechnology Research Laboratory, Research School of Engineering, The Australian National University, Canberra, ACT, 2601, Australia
| | - Munkhbayar Batmunkh
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia.,College of Science and Engineering, Flinders University, Bedford Park, Adelaide, SA, 5042, Australia.,Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland, 4072, Australia
| | - Antonio Tricoli
- Nanotechnology Research Laboratory, Research School of Engineering, The Australian National University, Canberra, ACT, 2601, Australia
| | - Shi Zhang Qiao
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Sheng Dai
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia.,Department of Chemical Engineering, Brunel University London, Uxbridge, UB8 3PH, UK
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37
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Myers TG, Fanelli C. On the incorrect use and interpretation of the model for colloidal, spherical crystal growth. J Colloid Interface Sci 2019; 536:98-104. [PMID: 30359889 DOI: 10.1016/j.jcis.2018.10.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 10/16/2018] [Accepted: 10/16/2018] [Indexed: 10/28/2022]
Abstract
HYPOTHESIS The standard model for diffusion and surface kinetics driven growth of a single spherical particle in solution is applied incorrectly throughout the literature. This leads to inaccurate values for parameter values, such as the diffusion and surface kinetics coefficients. The model cannot even distinguish between diffusion or surface kinetics driven growth. FINDINGS It is shown that crystal growth occurs in two distinct stages. The standard model only holds during the late time. Fitting to experimental data, including the early time, leads to incorrect values for the coefficients. It is shown that diffusion and surface kinetics are interchangeable in the model and so indistinguishable. The growth is controlled by a single non-dimensional group. Previous studies, where more independent parameters are calculated have redundancy. The Gibbs-Thomson relation plays an important role but, in the cases studied here, this is only noticeable during the first growth stage where the model does not hold. For the first time an explicit relation for the variation of the radius with time is given. Excellent agreement with experimental data on CdSe growth is shown.
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Affiliation(s)
- T G Myers
- Centre de Recerca Matemàtica-Barcelona Graduate School of Mathematics, Campus de Bellaterra, Edifici C, Bellaterra, Barcelona, Spain; Departament de Matemàtiques, Universitat Politècnica de Catalunya, Barcelona, Spain.
| | - C Fanelli
- Centre de Recerca Matemàtica-Barcelona Graduate School of Mathematics, Campus de Bellaterra, Edifici C, Bellaterra, Barcelona, Spain; Departament de Matemàtiques, Universitat Politècnica de Catalunya, Barcelona, Spain.
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38
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Blick RH, Graener H, Mews A, Weller H, Wiesendanger R, Parak WJ. Nanoscience and Nanotechnology at the Centennial of Universität Hamburg. ACS NANO 2019; 13:1-3. [PMID: 30785723 DOI: 10.1021/acsnano.9b00223] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- Robert H Blick
- Faculty of Mathematics, Informatics and Natural Sciences , Universität Hamburg , 20355 Hamburg , Germany
| | - Heinrich Graener
- Faculty of Mathematics, Informatics and Natural Sciences , Universität Hamburg , 20355 Hamburg , Germany
| | - Alf Mews
- Faculty of Mathematics, Informatics and Natural Sciences , Universität Hamburg , 20355 Hamburg , Germany
| | - Horst Weller
- Faculty of Mathematics, Informatics and Natural Sciences , Universität Hamburg , 20355 Hamburg , Germany
| | - Roland Wiesendanger
- Faculty of Mathematics, Informatics and Natural Sciences , Universität Hamburg , 20355 Hamburg , Germany
| | - Wolfgang J Parak
- Faculty of Mathematics, Informatics and Natural Sciences , Universität Hamburg , 20355 Hamburg , Germany
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39
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Yang J, Koo J, Kim S, Jeon S, Choi BK, Kwon S, Kim J, Kim BH, Lee WC, Lee WB, Lee H, Hyeon T, Ercius P, Park J. Amorphous-Phase-Mediated Crystallization of Ni Nanocrystals Revealed by High-Resolution Liquid-Phase Electron Microscopy. J Am Chem Soc 2019; 141:763-768. [DOI: 10.1021/jacs.8b11972] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jiwoong Yang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Jahyun Koo
- Department of Physics, Konkuk University, Seoul 05029, Republic of Korea
| | - Seulwoo Kim
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Sungho Jeon
- Department of Mechanical Engineering, Hanyang University, Ansan, Gyeonggido 15588, Republic of Korea
| | - Back Kyu Choi
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Sangwoo Kwon
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Joodeok Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Byung Hyo Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Won Chul Lee
- Department of Mechanical Engineering, Hanyang University, Ansan, Gyeonggido 15588, Republic of Korea
| | - Won Bo Lee
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Hoonkyung Lee
- Department of Physics, Konkuk University, Seoul 05029, Republic of Korea
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
| | | | - Jungwon Park
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University, Seoul 08826, Republic of Korea
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40
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Skrdla PJ, Yang H. On the Stability of Nano-formulations Prepared by Direct Synthesis: Simulated Ostwald Ripening of a Typical Nanocrystal Distribution Post-nucleation. AAPS PharmSciTech 2019; 20:34. [PMID: 30603812 DOI: 10.1208/s12249-018-1257-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Accepted: 11/21/2018] [Indexed: 11/30/2022] Open
Abstract
Compared to more traditional top-down processing, the less common route to preparing drug nanocrystals through direct synthesis, e.g., starting with the nucleation of dissolved drug molecules (bottom-up processing), can offer both speed and cost advantages that makes it worthy of investigation. The current, theoretical work puts forth a technical basis and simulated results that could provide additional impetus for conducting further experimental work in this area. Specifically, an asymmetrical particle size distribution generated through the nucleation of a typical small-molecule drug, mirrored after carbamazepine hydrate based on a recent work [Skrdla PJ. J Phys Chem C 116:214-25, 2012], is subject to growth over time by a particle-coarsening mechanism using simulations of Ostwald ripening. Compared to a symmetrical, Gaussian distribution under the same conditions (fixed, relatively low concentration of free drug molecules in solution), it is found that, at longer times, the asymmetrical distribution formed through nucleation broadens more slowly. This finding could represent an additional benefit of synthetic strategies for the preparation of nano-formulations, previously unreported.
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41
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Miao Y, Wang R, Sun X, Yan G. Preparation of DNA functional phosphorescent quantum dots and application in melamine detection in milk. RSC Adv 2019; 9:21147-21154. [PMID: 35521351 PMCID: PMC9066003 DOI: 10.1039/c9ra03919h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Accepted: 07/02/2019] [Indexed: 01/01/2023] Open
Abstract
Bio-functionalization of quantum dots (QDs) is of important value in practical applications. With single-stranded DNA (ssDNA) rich in thymine T and thioguanine G taken as the template, a new-type nanocomposite material (ssDNA-PQDs) synthesized from low-toxicity T-ssDNA functionalized Mn–ZnS and room-temperature phosphorescent (RTP) QDs (PQDs) was prepared in this paper by optimizing synthesis conditions, and these ssDNA-PQDs could emit orange RTP signals at 590 nm. As these ssDNA-PQDs are rich in T sequences and T sequences can bond with melamine through the hydrogen-bond interaction, ssDNA-PQDs experience aggregation, thus causing phosphorescent exciton energy transfer (PEET) between ssDNA-PQDs of different particle sizes and their RTP quenching. Based on this principle, an RTP detection method for melamine was established. The linear range and detection limit of the detection method are 0.005–6 mM and 0.0016 mM respectively. As this method is based on the RTP nature of ssDNA-PQDs, it can avoid disturbance from background fluorescence and scattered light of the biological fluid, and it is very suitable for melamine detection in the biological fluid milk. Preparation of phosphorescent quantum dots taking single-stranded DNA as a template and their application to melamine detection in milk.![]()
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Affiliation(s)
| | - Ruirui Wang
- Shanxi Normal University
- Linfen 041004
- PR China
| | - Xiaojie Sun
- Shanxi Normal University
- Linfen 041004
- PR China
| | - Guiqin Yan
- Shanxi Normal University
- Linfen 041004
- PR China
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VARANDA LAUDEMIRC, SOUZA CAIOG, MORAES DANIELA, NEVES HERBERTR, SOUZA JUNIOR JOÃOB, SILVA MONICAF, BINI RAFAELA, ALBERS REBECCAF, SILVA TIAGOL, BECK JUNIOR WATSON. Size and shape-controlled nanomaterials based on modified polyol and thermal decomposition approaches. A brief review. ACTA ACUST UNITED AC 2019. [DOI: 10.1590/0001-3765201920181180] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - CAIO G.S. SOUZA
- Universidade de São Paulo/USP, Brazil; Instituto Federal do Paraná/IFPR, Brazil
| | | | - HERBERT R. NEVES
- Universidade de São Paulo/USP, Brazil; Instituto Federal Catarinense/IFC, Brazil
| | | | | | - RAFAEL A. BINI
- Universidade Tecnológica Federal do Paraná/UFTPR, Brazil
| | - REBECCA F. ALBERS
- Universidade de São Paulo/USP, Brazil; Universidade Federal de São Carlos/UFSCar, Brazil
| | - TIAGO L. SILVA
- Universidade de São Paulo/USP, Brazil; Universidade Federal de São Carlos/UFSCar, Brazil
| | - WATSON BECK JUNIOR
- Universidade de São Paulo/USP, Brazil; Instituto Federal de Santa Catarina/IFSC, Brazil
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43
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Spangler LC, Cline JP, Kiely CJ, McIntosh S. Low temperature aqueous synthesis of size-controlled nanocrystals through size focusing: a quantum dot biomineralization case study. NANOSCALE 2018; 10:20785-20795. [PMID: 30402624 DOI: 10.1039/c8nr06166a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Traditional quantum dot synthesis techniques rely on the separation of nucleation and growth to control nanocrystal size. However, the same goal can be achieved through slow and continuous introduction of reactive precursors to keep the growth mechanism in the size focusing regime throughout synthesis. In this work, we demonstrate the efficacy of this approach within the framework of functional material biomineralization where, despite simultaneous nucleation and growth of particles, this growth mechanism enables size-controlled nanocrystal synthesis. Herein, the single enzyme cystathionine γ-lyase (CSE) is utilized to biomineralize CdS nanocrystals via the slow, but continuous turnover of the amino acid l-cysteine to produce H2S. Nanocrystal nucleation and growth theories confirm that consistent addition of monomers will result in a high supersaturation term, driving the nanocrystal growth mechanism into the size focusing regime. We further confirm this theory by mimicking biomineralization via chemical routes and demonstrate the influence of varying supersaturation, to further control the average nanocrystal size. Finally, altering the chelation strength of the capping agent l-cysteine is found to play a key role in balancing nanocrystal growth in solution and long-term stability.
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Affiliation(s)
- Leah C Spangler
- Department of Chemical and Biomolecular Engineering, Lehigh University, Bethlehem, PA 18015, USA.
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44
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Lesyuk R, Klein E, Yaremchuk I, Klinke C. Copper sulfide nanosheets with shape-tunable plasmonic properties in the NIR region. NANOSCALE 2018; 10:20640-20651. [PMID: 30393791 PMCID: PMC6250125 DOI: 10.1039/c8nr06738d] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 10/11/2018] [Indexed: 05/28/2023]
Abstract
2D copper sulfide nanocrystals are promising building blocks of plasmonic materials in the near-infrared (NIR) spectral region. We demonstrate precise shape and size control (hexagonal/triangle) of colloidal plasmonic copper sulfide (covellite) nano-prisms simply by tuning the precursor concentration without the introduction of additional ligands. The ultra-thin 2D nanocrystals possess sizes between 13 and 100 nm and triangular or hexangular shapes. We also demonstrate CuS nanosheets (NSs) with lateral sizes up to 2 microns using a syringe pump. Based on the experimental findings and DFT simulations, we propose a qualitative and quantitative mechanism for the formation of different shapes. The analysis of the spectral features in the NIR region of the synthesized CuS nanocrystals has been performed with respect to the shape and the size of particles by the discrete dipole approximation method and the Drude-Sommerfeld theory.
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Affiliation(s)
- Rostyslav Lesyuk
- Institute of Physical Chemistry
, University of Hamburg
,
Martin-Luther-King-Platz 6
, 20146 Hamburg
, Germany
- Pidstryhach Institute for applied problems of mechanics and mathematics of NAS of Ukraine
,
Naukowa str. 3b
, 79060 Lviv
, Ukraine
| | - Eugen Klein
- Institute of Physical Chemistry
, University of Hamburg
,
Martin-Luther-King-Platz 6
, 20146 Hamburg
, Germany
| | - Iryna Yaremchuk
- Department of Photonics
, Lviv Polytechnic National University
,
S. Bandera Str. 12
, Lviv 79013
, Ukraine
| | - Christian Klinke
- Institute of Physical Chemistry
, University of Hamburg
,
Martin-Luther-King-Platz 6
, 20146 Hamburg
, Germany
- Department of Chemistry
, Swansea University – Singleton Park
,
Swansea SA2 8PP
, UK
.
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45
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Yang J, Muckel F, Choi BK, Lorenz S, Kim IY, Ackermann J, Chang H, Czerney T, Kale VS, Hwang SJ, Bacher G, Hyeon T. Co 2+-Doping of Magic-Sized CdSe Clusters: Structural Insights via Ligand Field Transitions. NANO LETTERS 2018; 18:7350-7357. [PMID: 30265545 DOI: 10.1021/acs.nanolett.8b03627] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Magic-sized clusters represent materials with unique properties at the border between molecules and solids and provide important insights into the nanocrystal formation process. However, synthesis, doping, and especially structural characterization become more and more challenging with decreasing cluster size. Herein, we report the successful introduction of Co2+ ions into extremely small-sized CdSe clusters with the intention of using internal ligand field transitions to obtain structural insights. Despite the huge mismatch between the radii of Cd2+ and Co2+ ions (>21%), CdSe clusters can be effectively synthesized with a high Co2+ doping concentration of ∼10%. Optical spectroscopy and mass spectrometry suggest that one or two Co2+ ions are substitutionally embedded into (CdSe)13 clusters, which is known as one of the smallest CdSe clusters. Using magnetic circular dichroism spectroscopy on the intrinsic ligand field transitions between the different 3d orbitals of the transition metal dopants, we demonstrate that the Co2+ dopants are embedded on pseudotetrahedral selenium coordinated sites despite the limited number of atoms in the clusters. A significant shortening of Co-Se bond lengths compared to bulk or nanocrystals is observed, which results in the metastability of Co2+ doping. Our results not only extend the doping chemistry of magic-sized semiconductor nanoclusters, but also suggest an effective method to characterize the local structure of these extremely small-sized clusters.
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Affiliation(s)
- Jiwoong Yang
- Center for Nanoparticle Research , Institute for Basic Science (IBS) , Seoul 08826 , Republic of Korea
- School of Chemical and Biological Engineering and Institute of Chemical Processes , Seoul National University , Seoul 08826 , Republic of Korea
| | - Franziska Muckel
- Werkstoffe der Elektrotechnik und CENIDE , University Duisburg-Essen , Bismarckstraße 81 , 47057 Duisburg , Germany
| | - Back Kyu Choi
- Center for Nanoparticle Research , Institute for Basic Science (IBS) , Seoul 08826 , Republic of Korea
- School of Chemical and Biological Engineering and Institute of Chemical Processes , Seoul National University , Seoul 08826 , Republic of Korea
| | - Severin Lorenz
- Werkstoffe der Elektrotechnik und CENIDE , University Duisburg-Essen , Bismarckstraße 81 , 47057 Duisburg , Germany
| | - In Young Kim
- Center for Hybrid Interfacial Chemical Structure (CICS), Department of Chemistry and Nanoscience , Ewha Womans University , Seoul 03760 , Republic of Korea
| | - Julia Ackermann
- Werkstoffe der Elektrotechnik und CENIDE , University Duisburg-Essen , Bismarckstraße 81 , 47057 Duisburg , Germany
| | - Hogeun Chang
- Center for Nanoparticle Research , Institute for Basic Science (IBS) , Seoul 08826 , Republic of Korea
- School of Chemical and Biological Engineering and Institute of Chemical Processes , Seoul National University , Seoul 08826 , Republic of Korea
| | - Tamara Czerney
- Werkstoffe der Elektrotechnik und CENIDE , University Duisburg-Essen , Bismarckstraße 81 , 47057 Duisburg , Germany
| | - Vinayak S Kale
- Center for Nanoparticle Research , Institute for Basic Science (IBS) , Seoul 08826 , Republic of Korea
- School of Chemical and Biological Engineering and Institute of Chemical Processes , Seoul National University , Seoul 08826 , Republic of Korea
| | - Seong-Ju Hwang
- Center for Hybrid Interfacial Chemical Structure (CICS), Department of Chemistry and Nanoscience , Ewha Womans University , Seoul 03760 , Republic of Korea
| | - Gerd Bacher
- Werkstoffe der Elektrotechnik und CENIDE , University Duisburg-Essen , Bismarckstraße 81 , 47057 Duisburg , Germany
| | - Taeghwan Hyeon
- Center for Nanoparticle Research , Institute for Basic Science (IBS) , Seoul 08826 , Republic of Korea
- School of Chemical and Biological Engineering and Institute of Chemical Processes , Seoul National University , Seoul 08826 , Republic of Korea
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46
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Yazdani S, Pettes MT. Nanoscale self-assembly of thermoelectric materials: a review of chemistry-based approaches. NANOTECHNOLOGY 2018; 29:432001. [PMID: 30052199 DOI: 10.1088/1361-6528/aad673] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This review is concerned with the leading methods of bottom-up material preparation for thermal-to-electrical energy interconversion. The advantages, capabilities, and challenges from a material synthesis perspective are surveyed and the methods are discussed with respect to their potential for improvement (or possibly deterioration) of application-relevant transport properties. Solution chemistry-based synthesis approaches are re-assessed from the perspective of thermoelectric applications based on reported procedures for nanowire, quantum dot, mesoporous, hydro/solvothermal, and microwave-assisted syntheses as these techniques can effectively be exploited for industrial mass production. In terms of energy conversion efficiency, the benefit of self-assembly can occur from three paths: suppressing thermal conductivity, increasing thermopower, and boosting electrical conductivity. An ideal thermoelectric material gains from all three improvements simultaneously. Most bottom-up materials have been shown to exhibit very low values of thermal conductivity compared to their top-down (solid-state) counterparts, although the main challenge lies in improving their poor electrical properties. Recent developments in the field discussed in this review reveal that the traditional view of bottom-up thermoelectrics as inferior materials suffering from poor performance is not appropriate. Thermopower enhancement due to size and energy filtering effects, electrical conductivity enhancement, and thermal conductivity reduction mechanisms inherent in bottom-up nanoscale self-assembly syntheses are indicative of the impact that these techniques will play in future thermoelectric applications.
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Affiliation(s)
- Sajad Yazdani
- Department of Mechanical Engineering and Institute of Materials Science, University of Connecticut, Storrs, CT 06269, United States of America
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47
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Nanoparticle sintering in atomic layer deposition of supported catalysts: Kinetic modeling of the size distribution. Catal Today 2018. [DOI: 10.1016/j.cattod.2018.02.020] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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48
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Kwon HJ, Shin K, Soh M, Chang H, Kim J, Lee J, Ko G, Kim BH, Kim D, Hyeon T. Large-Scale Synthesis and Medical Applications of Uniform-Sized Metal Oxide Nanoparticles. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1704290. [PMID: 29573296 DOI: 10.1002/adma.201704290] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 11/19/2017] [Indexed: 05/27/2023]
Abstract
Thanks to recent advances in the synthesis of high-quality inorganic nanoparticles, more and more types of nanoparticles are becoming available for medical applications. Especially, metal oxide nanoparticles have drawn much attention due to their unique physicochemical properties and relatively inexpensive production costs. To further promote the development and clinical translation of these nanoparticle-based agents, however, it is highly desirable to reduce unwanted interbatch variations of the nanoparticles because characterizing and refining each batch are costly, take a lot of effort, and, thus, are not productive. Large-scale synthesis is a straightforward and economic pathway to minimize this issue. Here, the recent achievements in the large-scale synthesis of uniform-sized metal oxide nanoparticles and their biomedical applications are summarized, with a focus on nanoparticles of transition metal oxides and lanthanide oxides, and clarifying the underlying mechanism for the synthesis of uniform-sized nanoparticles. Surface modification steps to endow hydrophobic nanoparticles with water dispersibility and biocompatibility are also briefly described. Finally, various medical applications of metal oxide nanoparticles, such as bioimaging, drug delivery, and therapy, are presented.
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Affiliation(s)
- Hyek Jin Kwon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Kwangsoo Shin
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Min Soh
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Hogeun Chang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jonghoon Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jisoo Lee
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Giho Ko
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
| | - Byung Hyo Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
| | - Dokyoon Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul, 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Processes, Seoul National University, Seoul, 08826, Republic of Korea
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49
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Tan L, Liu B, Siemensmeyer K, Glebe U, Böker A. Synthesis of Polystyrene-Coated Superparamagnetic and Ferromagnetic Cobalt Nanoparticles. Polymers (Basel) 2018; 10:E1053. [PMID: 30960978 PMCID: PMC6404081 DOI: 10.3390/polym10101053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 09/13/2018] [Accepted: 09/18/2018] [Indexed: 01/15/2023] Open
Abstract
Polystyrene-coated cobalt nanoparticles (NPs) were synthesized through a dual-stage thermolysis of cobalt carbonyl (Co₂(CO)₈). The amine end-functionalized polystyrene surfactants with varying molecular weight were prepared via atom-transfer radical polymerization technique. By changing the concentration of these polymeric surfactants, Co NPs with different size, size distribution, and magnetic properties were obtained. Transmission electron microscopy characterization showed that the size of Co NPs stabilized with lower molecular weight polystyrene surfactants (Mn = 2300 g/mol) varied from 12⁻22 nm, while the size of Co NPs coated with polystyrene of middle (Mn = 4500 g/mol) and higher molecular weight (Mn = 10,500 g/mol) showed little change around 20 nm. Magnetic measurements revealed that the small cobalt particles were superparamagnetic, while larger particles were ferromagnetic and self-assembled into 1-D chain structures. Thermogravimetric analysis revealed that the grafting density of polystyrene with lower molecular weight is high. To the best of our knowledge, this is the first study to obtain both superparamagnetic and ferromagnetic Co NPs by changing the molecular weight and concentration of polystyrene through the dual-stage decomposition method.
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Affiliation(s)
- Li Tan
- Fraunhofer Institute for Applied Polymer Research IAP, Geiselbergstr. 69, 14476 Potsdam-Golm, Germany.
- Lehrstuhl für Polymermaterialien und Polymertechnologie, Universität Potsdam, 14476 Potsdam-Golm, Germany.
| | - Bing Liu
- Institute of Chemistry Chinese Academy of Sciences, Beijing 100864, China.
| | | | - Ulrich Glebe
- Fraunhofer Institute for Applied Polymer Research IAP, Geiselbergstr. 69, 14476 Potsdam-Golm, Germany.
| | - Alexander Böker
- Fraunhofer Institute for Applied Polymer Research IAP, Geiselbergstr. 69, 14476 Potsdam-Golm, Germany.
- Lehrstuhl für Polymermaterialien und Polymertechnologie, Universität Potsdam, 14476 Potsdam-Golm, Germany.
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50
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Wu J, Qian H, Lu L, Fan J, Guo Y, Fang W. Influence of Reduction Kinetics on the Preparation of Well-Defined Cubic Palladium Nanocrystals. Inorg Chem 2018; 57:8128-8136. [DOI: 10.1021/acs.inorgchem.8b00368] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jianzhou Wu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Hehe Qian
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Linfang Lu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Jie Fan
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Yongsheng Guo
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Wenjun Fang
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
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