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Zhang Y, Liu Y, Lu Y, Gong S, Haick H, Cheng W, Wang Y. Tailor-Made Gold Nanomaterials for Applications in Soft Bioelectronics and Optoelectronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2405046. [PMID: 39022844 DOI: 10.1002/adma.202405046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 06/02/2024] [Indexed: 07/20/2024]
Abstract
In modern nanoscience and nanotechnology, gold nanomaterials are indispensable building blocks that have demonstrated a plethora of applications in catalysis, biology, bioelectronics, and optoelectronics. Gold nanomaterials possess many appealing material properties, such as facile control over their size/shape and surface functionality, intrinsic chemical inertness yet with high biocompatibility, adjustable localized surface plasmon resonances, tunable conductivity, wide electrochemical window, etc. Such material attributes have been recently utilized for designing and fabricating soft bioelectronics and optoelectronics. This motivates to give a comprehensive overview of this burgeoning field. The discussion of representative tailor-made gold nanomaterials, including gold nanocrystals, ultrathin gold nanowires, vertically aligned gold nanowires, hard template-assisted gold nanowires/gold nanotubes, bimetallic/trimetallic gold nanowires, gold nanomeshes, and gold nanosheets, is begun. This is followed by the description of various fabrication methodologies for state-of-the-art applications such as strain sensors, pressure sensors, electrochemical sensors, electrophysiological devices, energy-storage devices, energy-harvesting devices, optoelectronics, and others. Finally, the remaining challenges and opportunities are discussed.
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Affiliation(s)
- Yujie Zhang
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Yi Liu
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Yuerui Lu
- School of Engineering, College of Engineering, Computing and Cybernetics, The Australian National University, Canberra, ACT, 2601, Australia
| | - Shu Gong
- School of Materials Science and Engineering, Central South University, Changsha, 410083, P. R. China
| | - Hossam Haick
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Wenlong Cheng
- School of Biomedical Engineering, The University of Sydney, Darlington, NSW, 2008, Australia
| | - Yan Wang
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
- Key Laboratory of Science and Engineering for Health and Medicine of Guangdong Higher Education Institutes, Guangdong Technion - Israel Institute of Technology, Shantou, Guangdong, 515063, China
- Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
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Ramamoorthy RK, Yildirim E, Rodriguez-Ruiz I, Roblin P, Lacroix LM, Diaz A, Parmar R, Teychené S, Viau G. Sub-millisecond microfluidic mixers coupled to time-resolved in situ photonics to study ultra-fast reaction kinetics: the case of ultra-small gold nanoparticle synthesis. LAB ON A CHIP 2024; 24:327-338. [PMID: 38088259 DOI: 10.1039/d3lc00778b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
Abstract
We report a continuous microreactor platform achieving sub-millisecond homogeneous reagent mixing (∼300 μs) for a time-resolved study on the synthesis of ultra-small gold nanoparticles (NPs). The microreactor (coupled with small angle X-ray scattering, UV-vis, and X-ray absorption spectroscopy for in situ and in operando characterizations), operates within mixing time frames below system characteristic times, providing a unique opportunity to deepen the comprehension of reaction and phase transition pathways with unprecedented details. The microreactor channel length can be approximated to a given reaction time when operated in continuous mode and steady state. As a result, the system can be statically investigated, eliminating technique-dependent probing time constraints and local inhomogeneities caused by mixing issues. We have studied Au(0) NP formation kinetics from Au(III) precursors complexed with oleylamine in organic media, using triisopropylsilane as a reducing agent. The existence of Au(III)/Au(I) prenucleation clusters and the formation of a transient Au(I) lamellar phase under certain conditions, before the onset of Au(0) formation, have been observed. Taking advantage of the high frequency time-resolved information, we propose and model two different reaction pathways associated with the presence or absence of the Au(I) lamellar phase. In both cases, non-classical pathways leading to the formation of NPs are discussed.
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Affiliation(s)
- Raj Kumar Ramamoorthy
- Laboratoire de Physique et Chimie des Nano-Objets UMR 5215 INSA, CNRS, UPS, Université de Toulouse, 135 avenue de Rangueil, F-31077 Toulouse cedex 4, France.
- Laboratoire de Génie Chimique, CNRS, INP, UPS, Université de Toulouse, Toulouse, France.
- Fédération de Recherche FeRMAT, CNRS, INP, INSA, UPS, Université de Toulouse, Toulouse, France
| | - Ezgi Yildirim
- Laboratoire de Physique et Chimie des Nano-Objets UMR 5215 INSA, CNRS, UPS, Université de Toulouse, 135 avenue de Rangueil, F-31077 Toulouse cedex 4, France.
| | - Isaac Rodriguez-Ruiz
- Laboratoire de Génie Chimique, CNRS, INP, UPS, Université de Toulouse, Toulouse, France.
| | - Pierre Roblin
- Laboratoire de Génie Chimique, CNRS, INP, UPS, Université de Toulouse, Toulouse, France.
| | - Lise-Marie Lacroix
- Laboratoire de Physique et Chimie des Nano-Objets UMR 5215 INSA, CNRS, UPS, Université de Toulouse, 135 avenue de Rangueil, F-31077 Toulouse cedex 4, France.
- Institut Universitaire de France (IUF), 103 boulevard Saint Michel, 75005 Paris, France
| | - Ana Diaz
- Paul Scherrer Institute, Villigen PSI, Switzerland
| | - Rohan Parmar
- Laboratoire de Génie Chimique, CNRS, INP, UPS, Université de Toulouse, Toulouse, France.
| | - Sébastien Teychené
- Laboratoire de Génie Chimique, CNRS, INP, UPS, Université de Toulouse, Toulouse, France.
| | - Guillaume Viau
- Laboratoire de Physique et Chimie des Nano-Objets UMR 5215 INSA, CNRS, UPS, Université de Toulouse, 135 avenue de Rangueil, F-31077 Toulouse cedex 4, France.
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Kichijo R, Miyajima N, Ogawa D, Sugimori H, Wang KH, Imura Y, Kawai T. Water-phase synthesis of Au and Au-Ag nanowires and their SERS activity. RSC Adv 2022; 12:28937-28943. [PMID: 36320732 PMCID: PMC9551676 DOI: 10.1039/d2ra05496e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 10/06/2022] [Indexed: 11/06/2022] Open
Abstract
Metal nanowires (NWs) with a diameter of a few nanometers have attracted considerable attention as a promising one-dimensional nanomaterial due to their inherent flexibility and conductive properties and their weak plasmon absorption in the visible region. In a previous paper, we reported the synthesis of ultrathin 1.8 nm-diameter Au NWs using toluene-solubilized aqueous solutions of a long-chain amidoamine derivative (C18AA). This study investigates the effect of different organic solvents solubilized in C18AA aqueous solutions on the morphology of the Au products and demonstrates that solubilizing methylcyclohexane yields thick 2.7 nm-diameter Au NWs and 3.3 nm-diameter Au-Ag alloy NWs. Further, the surface-enhanced Raman scattering sensitivity of ultrathin Au NWs, thick Au NWs, and thick Au-Ag alloy NWs were assessed using 4-mercaptopyridine and found that their enhancement factors are 104-105 and the order is Au-Ag NWs > thick Au NWs > ultrathin Au NWs.
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Affiliation(s)
- Ryota Kichijo
- Faculty of Engineering, Tokyo University of Science6-3-1 Niijuku, Katsushika-ku125-8585TokyoJapan
| | - Naoya Miyajima
- Faculty of Engineering, Tokyo University of Science6-3-1 Niijuku, Katsushika-ku125-8585TokyoJapan
| | - Daisuke Ogawa
- Tokyo Metropolitan Industrial Technology Research Institute (TIRI)2-4-10 Aomi, Koto-ku135-0064TokyoJapan
| | - Hirokazu Sugimori
- Tokyo Metropolitan Industrial Technology Research Institute (TIRI)2-4-10 Aomi, Koto-ku135-0064TokyoJapan
| | - Ke-Hsuan Wang
- Faculty of Engineering, Tokyo University of Science6-3-1 Niijuku, Katsushika-ku125-8585TokyoJapan
| | - Yoshiro Imura
- Faculty of Engineering, Tokyo University of Science6-3-1 Niijuku, Katsushika-ku125-8585TokyoJapan
| | - Takeshi Kawai
- Faculty of Engineering, Tokyo University of Science6-3-1 Niijuku, Katsushika-ku125-8585TokyoJapan
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Engel LF, González-García L, Kraus T. Flexible and transparent electrodes imprinted from Au nanowires: stability and ageing. NANOSCALE ADVANCES 2022; 4:3940-3949. [PMID: 36133343 PMCID: PMC9470066 DOI: 10.1039/d2na00352j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 07/26/2022] [Indexed: 06/16/2023]
Abstract
We study the stability of flexible transparent electrodes (FTEs) that were self-assembled from ultra-thin gold nanowires (AuNW) by direct nanoimprinting of inks with different particle concentrations (1 to 10 mg mL-1). The resulting lines were less than 3 μm wide and contained bundles of AuNW with oleylamine (OAm) ligand shells. Small-angle X-ray scattering confirmed a concentration-independent bundle structure. Plasma sintering converted the wire assemblies into lines with a thin metal shell that contributes most to electrical conductivity and covers a hybrid core. We studied the relative change in sheet resistance and the morphology of the FTEs with time. The sheet resistance increased at all concentrations, but at different rates. The metal shell aged by de-wetting and pore formation. The hybrid core de-mixed and densified, which led to a partial collapse of the shell. Residual organics migrated through the shell via its pores. Lines formed at low concentration (c Au = 2 to 3 mg mL-1) contained less residual organics and aged slower than those formed at high c Au ≥ 5 mg mL-1. We passivated the conductive shell with thin, adsorbed layers of PEDOT:PSS and found that it decelerated degradation by slowing surface diffusion and hindering further rupture of the shell. Thick capping layers prevented degradation entirely and stopped pore formation.
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Affiliation(s)
- Lukas F Engel
- INM - Leibniz Institute for New Materials Campus D2 2 66123 Saarbrücken Germany +49 (0)681-9300-269, +49 (0)681-9300-389
| | - Lola González-García
- INM - Leibniz Institute for New Materials Campus D2 2 66123 Saarbrücken Germany +49 (0)681-9300-269, +49 (0)681-9300-389
| | - Tobias Kraus
- INM - Leibniz Institute for New Materials Campus D2 2 66123 Saarbrücken Germany +49 (0)681-9300-269, +49 (0)681-9300-389
- Colloid and Interface Chemistry, Saarland University Campus D2 2 66123 Saarbrücken Germany
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5
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Mourdikoudis S, Menelaou M, Fiuza-Maneiro N, Zheng G, Wei S, Pérez-Juste J, Polavarapu L, Sofer Z. Oleic acid/oleylamine ligand pair: a versatile combination in the synthesis of colloidal nanoparticles. NANOSCALE HORIZONS 2022; 7:941-1015. [PMID: 35770698 DOI: 10.1039/d2nh00111j] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A variety of colloidal chemical approaches has been developed in the last few decades for the controlled synthesis of nanostructured materials in either water or organic solvents. Besides the precursors, the solvents, reducing agents, and the choice of surfactants are crucial for tuning the composition, morphology and other properties of the resulting nanoparticles. The ligands employed include thiols, amines, carboxylic acids, phosphines and phosphine oxides. Generally, adding a single ligand to the reaction mixture is not always adequate to yield the desired features. In this review, we discuss in detail the role of the oleic acid/oleylamine ligand pair in the chemical synthesis of nanoparticles. The combined use of these ligands belonging to two different categories of molecules aims to control the size and shape of nanoparticles and prevent their aggregation, not only during their synthesis but also after their dispersion in a carrier solvent. We show how the different binding strengths of these two molecules and their distinct binding modes on specific facets affect the reaction kinetics toward the production of nanostructures with tailored characteristics. Additional functions, such as the reducing function, are also noted, especially for oleylamine. Sometimes, the carboxylic acid will react with the alkylamine to form an acid-base complex, which may serve as a binary capping agent and reductant; however, its reducing capacity may range from lower to much lower than that of oleylamine. The types of nanoparticles synthesized in the simultaneous presence of oleic acid and oleylamine and discussed herein include metal oxides, metal chalcogenides, metals, bimetallic structures, perovskites, upconversion particles and rare earth-based materials. Diverse morphologies, ranging from spherical nanoparticles to anisotropic, core-shell and hetero-structured configurations are presented. Finally, the relation between tuning the resulting surface and volume nanoparticle properties and the relevant applications is highlighted.
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Affiliation(s)
- Stefanos Mourdikoudis
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 - Prague 6, Czech Republic.
| | - Melita Menelaou
- Department of Chemical Engineering, Faculty of Geotechnical Sciences and Environmental Management, Cyprus University of Technology, 3036 Limassol, Cyprus.
| | - Nadesh Fiuza-Maneiro
- CINBIO, Universidade de Vigo, Materials Chemistry and Physics, Department of Physical Chemistry, Campus Universitario Lagoas Marcosende, 36310 Vigo, Spain.
| | - Guangchao Zheng
- School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450001, China
| | - Shuangying Wei
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 - Prague 6, Czech Republic.
| | - Jorge Pérez-Juste
- CINBIO, Universidade de Vigo, Departamento de Química Física, Campus Universitario As Lagoas, Marcosende, 36310 Vigo, Spain
- Galicia Sur Health Research Institute (IIS Galicia Sur), 36310 Vigo, Spain
| | - Lakshminarayana Polavarapu
- CINBIO, Universidade de Vigo, Materials Chemistry and Physics, Department of Physical Chemistry, Campus Universitario Lagoas Marcosende, 36310 Vigo, Spain.
| | - Zdeněk Sofer
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 - Prague 6, Czech Republic.
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6
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Engel LF, González-García L, Kraus T. Flexible and transparent electrodes imprinted from metal nanostructures: morphology and opto-electronic performance. NANOSCALE ADVANCES 2022; 4:3370-3380. [PMID: 36131708 PMCID: PMC9419766 DOI: 10.1039/d2na00259k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 07/02/2022] [Indexed: 06/15/2023]
Abstract
We directed the self-assembly of nanoscale colloids via direct nanoimprint lithography to create flexible transparent electrodes (FTEs) with metal line widths below 3 μm in a roll-to-roll-compatible process. Gold nanowires and nanospheres with oleylamine shells were imprinted with soft silicone stamps, arranged into grids of parallel lines, and converted into metal lines in a plasma process. We studied the hierarchical structure and opto-electronic performance of the resulting grids as a function of particle geometry and concentration. The performance in terms of optical transmittance was dominated by the line width. Analysis of cross-sections indicated that plasma sintering only partially removed the insulating ligands and formed lines with thin conductive shells and a non-conductive core. We provide evidence that the self-assembly of high-aspect nanowires can compensate for defects of the stamp and substrate irregularities during imprinting, while spheres cannot. The wire-based electrodes thus outperformed the sphere-based electrodes at ratios of optical transmittance to sheet resistance of up to ≈ 0.9% Ωsq -1, while spheres only reached ≈ 0.55% Ωsq -1.
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Affiliation(s)
- Lukas F Engel
- INM - Leibniz Institute for New Materials Campus D2 2 66123 Saarbrücken Germany +49 (0)681-9300-269
| | - Lola González-García
- INM - Leibniz Institute for New Materials Campus D2 2 66123 Saarbrücken Germany +49 (0)681-9300-269
| | - Tobias Kraus
- Colloid and Interface Chemistry, Saarland University Campus D2 2 66123 Saarbrücken Germany +49 (0)681-9300-389
- INM - Leibniz Institute for New Materials Campus D2 2 66123 Saarbrücken Germany +49 (0)681-9300-269
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7
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Lim C, Park C, Sunwoo SH, Kim YG, Lee S, Han SI, Kim D, Kim JH, Kim DH, Hyeon T. Facile and Scalable Synthesis of Whiskered Gold Nanosheets for Stretchable, Conductive, and Biocompatible Nanocomposites. ACS NANO 2022; 16:10431-10442. [PMID: 35766461 DOI: 10.1021/acsnano.2c00880] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Noble metal nanomaterials have been studied as conductive fillers for stretchable, conductive, and biocompatible nanocomposites. However, their performance as conductive filler materials is far from ideal because of their high percolation threshold and low intrinsic conductivity. Moreover, the difficulty in large-scale production is another critical hurdle in their practical applications. Here we report a method for the facile and scalable synthesis of whiskered gold nanosheets (W-AuNSs) for stretchable, conductive, and biocompatible nanocomposites and their application to stretchable bioelectrodes. W-AuNSs show a lower percolation threshold (1.56 vol %) than those of gold nanoparticles (5.02 vol %) and gold nanosheets (2.74 vol %), which enables the fabrication of W-AuNS-based stretchable nanocomposites with superior conductivity and high stretchability. Addition of platinum-coated W-AuNSs (W-AuNSs@Pt) to the prepared nanocomposite significantly reduces the impedance and improved charge storage capacity. Such enhanced performance of the stretchable nanocomposite enables us to fabricate stretchable bioelectrodes whose performance is demonstrated through animal experiments including electrophysiological recording and electrical stimulation in vivo.
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Affiliation(s)
- Chaehong Lim
- 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
| | - Chansul 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 Processes, Seoul National University, Seoul 08826, Republic of Korea
| | - Sung-Hyuk Sunwoo
- 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
| | - Young Geon 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
| | - Seunghwan 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
| | - Sang Ihn Han
- 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
| | - Dokyoon Kim
- Department of Bionano Engineering and Bionanotechnology, Hanyang Univeristy, Ansan 15588, Republic of Korea
| | - Jeong Hyun Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
| | - Dae-Hyeong 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
- Department of Materials Science and Engineering, 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 Processes, Seoul National University, Seoul 08826, Republic of Korea
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8
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Pells JA, Guan D, Leznoff DB. Heterobimetallic Ln(III)‐Containing Materials Based on One‐Dimensional Aurophilic Chains of Gold(I) Dithiolate Dimers and Their Vapochromic Response to DMF. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jefferson A. Pells
- Department of Chemistry Simon Fraser University 8888 University Dr., Burnaby British Columbia V5A 1S6 Canada
| | - David Guan
- Department of Chemistry Simon Fraser University 8888 University Dr., Burnaby British Columbia V5A 1S6 Canada
| | - Daniel B. Leznoff
- Department of Chemistry Simon Fraser University 8888 University Dr., Burnaby British Columbia V5A 1S6 Canada
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9
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Zhang G, Wang Y, Ma Y, Zheng Y, Zhang H, Tang M, Dai Y. Ultrathin Samarium-Doped Palladium Nanocrystals with Exotic Shapes for Efficient Electrocatalytic Ethanol Oxidation. Catal Today 2022. [DOI: 10.1016/j.cattod.2022.03.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Adhyapak PV, Kasabe AM, Bang AD, Ambekar J, Kulkarni SK. Highly sensitive, room temperature operated gold nanowire-based humidity sensor: adoptable for breath sensing. RSC Adv 2021; 12:1157-1164. [PMID: 35425134 PMCID: PMC8978864 DOI: 10.1039/d1ra07510a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 12/06/2021] [Indexed: 11/29/2022] Open
Abstract
A novel, highly sensitive gold nanowire (AuNW) resistive sensor is reported here for humidity sensing in the relative humidity range of 11% to 92% RH as well as for breath sensing. Both humidity and breath sensors are widely needed. Despite a lot of research on humidity and breath sensors, there is a need for simple, inexpensive, reliable, sensitive and selective sensors, which will operate at room temperature. Here we have synthesized gold nanowires by a simple, wet chemical route. The nanowires synthesized by us are 4–7 nm in diameter and a few micrometers long. The nanowires are amine functionalized. The sensor was prepared by drop casting gold nanowires on an alumina substrate to form a AuNW layer with different thicknesses (10, 20, 30 μm). The AuNW sensor is highly selective towards humidity and shows minimum cross sensitivity towards other gases and organic vapors. At an optimum thickness of 20 μm, the humidity sensing performance of the AuNW sensor over 11% to 92% RH was found to be superior to that of 10 and 30 μm thick layers. The response time of the sensor is found to be 0.2 s and the recovery time is 0.3 s. The response of the AuNW sensor was 3.3 MΩ/% RH. Further, the AuNW sensor was tested for sensing human breathing patterns. A novel, highly sensitive gold nanowire (AuNW) resistive sensor is reported here for humidity sensing in the relative humidity range of 11% to 92% RH as well as for breath sensing.![]()
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Affiliation(s)
- Parag V Adhyapak
- Centre for Materials for Electronics Technology (C-MET) Panchawati Off Pashan Road Pune -411008 India
| | - Aishwarya M Kasabe
- Centre for Materials for Electronics Technology (C-MET) Panchawati Off Pashan Road Pune -411008 India
| | - Amruta D Bang
- Centre for Materials for Electronics Technology (C-MET) Panchawati Off Pashan Road Pune -411008 India
| | - Jalindar Ambekar
- Centre for Materials for Electronics Technology (C-MET) Panchawati Off Pashan Road Pune -411008 India
| | - Sulabha K Kulkarni
- Centre for Materials for Electronics Technology (C-MET) Panchawati Off Pashan Road Pune -411008 India
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11
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Lang EN, Claridge SA. Cow-to-cow variation in nanocrystal synthesis: learning from technical-grade oleylamine. NANOTECHNOLOGY 2021; 33:082501. [PMID: 34854821 DOI: 10.1088/1361-6528/ac39cb] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 11/15/2021] [Indexed: 06/13/2023]
Abstract
Many technical-grade reagents, including oleylamine, are broadly used as ligands in nanocrystal synthesis, allowing for cost-effective, and more environmentally friendly, preparation of materials in useful quantities. Impurities can represent 30% or more of these reagent blends, and have frequently emerged as substantial drivers of nanocrystal morphology, assembly, or other physical properties, making it important to understand their composition. Some functional alkyl reagents are derived from natural sources (e.g. often beef tallow, in the case of oleylamine), introducing alkyl chain structures very different than those that might be expected as side products of synthesis from pure feedstocks. Additionally, impurities can exhibit variations based on biological factors (e.g. species, diet, season). In biology, blends of alkyl chains allow for surprisingly sophisticated function of amphiphiles in the cell membrane, pointing to the possibility of similar control in synthetic materials if reagent composition were either better controlled or better understood. Here, we provide brief context on the breadth of roles technical-grade impurities have played in nanocrystal materials, followed by a perspective on oleylamine impurities, their physical properties, and their potential contributions to nanomaterial function.
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Affiliation(s)
- Erin N Lang
- Department of Chemistry, Purdue University, West Lafayette, United States of America
| | - Shelley A Claridge
- Department of Chemistry, Purdue University, West Lafayette, United States of America
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, United States of America
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12
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Gao Y, Chen J, Chen G, Fan C, Liu X. Recent Progress in the Transfer of Graphene Films and Nanostructures. SMALL METHODS 2021; 5:e2100771. [PMID: 34928026 DOI: 10.1002/smtd.202100771] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 10/13/2021] [Indexed: 06/14/2023]
Abstract
The one-atom-thick graphene has excellent electronic, optical, thermal, and mechanical properties. Currently, chemical vapor deposition (CVD) graphene has received a great deal of attention because it provides access to large-area and uniform films with high-quality. This allows the fabrication of graphene based-electronics, sensors, photonics, and optoelectronics for practical applications. Zero bandgap, however, limits the application of a graphene film as electronic transistor. The most commonly used bottom-up approaches have achieved efficient tuning of the electronic bandgap by customizing well-defined graphene nanostructures. The postgrowth transfer of graphene films/nanostructures to a certain substrate is crucial in utilizing graphene in applicable devices. In this review, the basic growth mechanism of CVD graphene is first introduced. Then, recent advances in various transfer methods of as-grown graphene to target substrates are presented. The fabrication and transfer methods of graphene nanostructures are also provided, and then the transfer-related applications are summarized. At last, the challenging issues and the potential transfer-free approaches are discussed.
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Affiliation(s)
- Yanjing Gao
- School of Chemistry and Chemical Engineering, Frontiers Science Centre for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jielin Chen
- School of Chemistry and Chemical Engineering, Frontiers Science Centre for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Guorui Chen
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), Shenyang National Laboratory for Materials Science, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Chunhai Fan
- School of Chemistry and Chemical Engineering, Frontiers Science Centre for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xiaoguo Liu
- School of Chemistry and Chemical Engineering, Frontiers Science Centre for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, China
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13
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Abstract
The evolution of lipids in nanoscience exemplifies the powerful coupling of advances in science and technology. Here, we describe two waves of discovery and innovation in lipid materials: one historical and one still building. The first wave leveraged the relatively simple capability for lipids to orient at interfaces, building layers of functional groups. This simple form of building with atoms yielded a stunning range of technologies: lubricant additives that dramatically extended machine lifetimes, molecules that enabled selective ore extraction in mining, and soaps that improved human health. It also set the stage for many areas of modern nanoscience. The second wave of lipid materials, still growing, uses the more complex toolkits lipids offer for building with atoms, including controlling atomic environment to control function (e.g., pKa tuning) and the generation of more arbitrary two-dimensional and three-dimensional structures, including lipid nanoparticles for COVID-19 mRNA vaccines.
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Affiliation(s)
- Anni Shi
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
| | - Shelley A Claridge
- Department of Chemistry, Purdue University, West Lafayette, Indiana 47907, United States
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
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14
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Li P, Kang Z, Rao F, Lu Y, Zhang Y. Nanowelding in Whole-Lifetime Bottom-Up Manufacturing: From Assembly to Service. SMALL METHODS 2021; 5:e2100654. [PMID: 34927947 DOI: 10.1002/smtd.202100654] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/23/2021] [Indexed: 06/14/2023]
Abstract
The continuous miniaturization of microelectronics is pushing the transformation of nanomanufacturing modes from top-down to bottom-up. Bottom-up manufacturing is essentially the way of assembling nanostructures from atoms, clusters, quantum dots, etc. The assembly process relies on nanowelding which also existed in the synthesis process of nanostructures, construction and repair of nanonetworks, interconnects, integrated circuits, and nanodevices. First, many kinds of novel nanomaterials and nanostructures from 0D to 1D, and even 2D are synthesized by nanowelding. Second, the connection of nanostructures and interfaces between metal/semiconductor-metal/semiconductor is realized through low-temperature heat-assisted nanowelding, mechanical-assisted nanowelding, or cold welding. Finally, 2D and 3D interconnects, flexible transparent electrodes, integrated circuits, and nanodevices are constructed, functioned, or self-healed by nanowelding. All of the three nanomanufacturing stages follow the rule of "oriented attachment" mechanisms. Thus, the whole-lifetime bottom-up manufacturing process from the synthesis and connection of nanostructures to the construction and service of nanodevices can be organically integrated by nanowelding. The authors hope this review can bring some new perspective in future semiconductor industrialization development in the expansion of multi-material systems, technology pathway for the refined design, controlled synthesis and in situ characterization of complex nanostructures, and the strategies to develop and repair novel nanodevices in service.
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Affiliation(s)
- Peifeng Li
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Zhuo Kang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Advanced Energy Materials and Technologies, University of Science and Technology Beijing, Beijing, 100083, P. R. China
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China
| | - Feng Rao
- College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Yang Lu
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Nanomanufacturing Laboratory (NML), Shenzhen Research Institute, City University of Hong Kong, Shenzhen, 518057, P. R. China
| | - Yue Zhang
- Beijing Advanced Innovation Center for Materials Genome Engineering, Beijing Key Laboratory for Advanced Energy Materials and Technologies, University of Science and Technology Beijing, Beijing, 100083, P. R. China
- State Key Laboratory for Advanced Metals and Materials, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing, 100083, P. R. China
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15
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Imura Y, Maniwa M, Iida K, Saito H, Morita-Imura C, Kawai T. Preparing Alumina-Supported Gold Nanowires for Alcohol Oxidation. ACS OMEGA 2021; 6:16043-16048. [PMID: 34179649 PMCID: PMC8223421 DOI: 10.1021/acsomega.1c01895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 06/03/2021] [Indexed: 06/13/2023]
Abstract
The development of shape-controlled noble metal nanocrystals such as nanowires (NWs) is progressing steadily owing to their potentially novel catalytic properties and the ease with which they can be prepared by reducing the metal ions in a particular solution as capping agents. Recently, many reports have been presented on the preparation of shape-controlled Au nanocrystals, such as nanostars and nanoflowers, by a one-pot method using 2-[4-(2-hydroxyethyl)-1-piperazinyl] ethanesulfonic acid (HEPES) as capping and reducing agents. The catalytic activity is depressed due to the adsorption of the capping agent onto a Au surface. Since HEPES has low binding affinities on the Au surface, shape-controlled nanocrystals obtained using HEPES are effective for application as nanocatalysts because HEPES was easily removed from the Au surface. In this study, we report the preparation of AuNWs, with an average diameter of 7.7 nm and lengths of a few hundred nanometers, in an aqueous solution containing HEPES and sodium borohydride. A γ-Al2O3-supported AuNW (AuNW/γ-Al2O3) catalyst was obtained using catalytic supporters and a water extraction method that removed HEPES from the Au surface without morphological changes. AuNW/γ-Al2O3 was then utilized to catalyze the oxidation of 1-phenylethyl alcohol to acetophenone. The formation rate of acetophenone over AuNW/γ-Al2O3 was 3.2 times that over γ-Al2O3-supported spherical Au nanoparticles (AuNP/γ-Al2O3) with almost the same diameter.
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Affiliation(s)
- Yoshiro Imura
- Department
of Industrial Chemistry, Tokyo University
of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Motoki Maniwa
- Department
of Industrial Chemistry, Tokyo University
of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Kazuki Iida
- Department
of Industrial Chemistry, Tokyo University
of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Haruna Saito
- Department
of Industrial Chemistry, Tokyo University
of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Clara Morita-Imura
- Department
of Chemistry, Faculty of Science, Ochanomizu
University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Takeshi Kawai
- Department
of Industrial Chemistry, Tokyo University
of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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16
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Li L, You H, Zhao L, Zhang R, Amin MU, Fang J. Switchable Binding Energy of Ionic Compounds and Application in Customizable Ligand Exchange for Colloid Nanocrystals. J Phys Chem Lett 2021; 12:5271-5278. [PMID: 34060845 DOI: 10.1021/acs.jpclett.1c00669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The ability to engineer the surface ligands or adsorbed molecules on colloid nanocrystals (NCs) is important for various applications, as the physical and chemical properties are strongly affected by the surface chemistry. Here, we develop a facile and generalized ionic compound-mediated ligand-exchange strategy based on density functional theory calculations, in which the ionic compounds possess switchable bonding energy when they transfer between the ionized state and the non-ionized state, hence catalyzing the ligand-exchange process. By using an organic acid as the intermediate ligand, ligands such as oleylamine, butylamine, polyvinylpyrrolidone, and poly(vinyl alcohol) can be freely exchanged on the surface of Au NCs. Benefiting from this unique ligand-exchange strategy, the ligands with strong bonding energy can be replaced by weak ones, which is hard to realize in traditional ligand-exchange processes. The ionic compound-mediated ligand exchange is further utilized to improve the catalytic properties of Au NCs, facilitate the loading of nanoparticles on substrates, and tailor the growth of colloid NCs. These results indicate that the mechanism of switchable bonding energy can be significantly expanded to manipulate the surface property and functionalization of NCs that have applications in a wide range of chemical and biomedical fields.
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Affiliation(s)
- Lingwei Li
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Electronic Science and Engineering, Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, Shannxi 710049, P. R. China
| | - Hongjun You
- School of Physics, Xi'an Jiaotong University, Xi'an, Shannxi 710049, P. R. China
| | - Lijun Zhao
- School of Physics, Xi'an Jiaotong University, Xi'an, Shannxi 710049, P. R. China
| | - Ruiyuan Zhang
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Electronic Science and Engineering, Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, Shannxi 710049, P. R. China
| | - Muhammad Usman Amin
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Electronic Science and Engineering, Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, Shannxi 710049, P. R. China
| | - Jixiang Fang
- Key Laboratory for Physical Electronics and Devices of the Ministry of Education, School of Electronic Science and Engineering, Faculty of Electronic and Information Engineering, Xi'an Jiaotong University, Xi'an, Shannxi 710049, P. R. China
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17
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Single-parameter-tuned synthesis for shape-controlled gold nanocrystals stimulated by iron carbonyl. J Colloid Interface Sci 2021; 601:773-781. [PMID: 34102406 DOI: 10.1016/j.jcis.2021.05.114] [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] [Received: 03/09/2021] [Revised: 04/30/2021] [Accepted: 05/21/2021] [Indexed: 11/22/2022]
Abstract
Shape-controlled synthesis is essential for functional nanomaterials, allowing deeper insights intothe relationship between the structures and the catalytic properties. Synthesis of nanocrystals with particular morphologies are usually studied independently among various synthetic methods, those underline that different surface capping ligands or shape-directing agents bring about disparate shapes. However, a single quantitative parameter method is still lacking to realize precise control of well-defined morphology nanocrystals, especially anisotropic structures, which is essential to understanding the growth process of nanocrystals. Herein, we proposed a single-parameter-tuned synthesis strategy for preparation of shape-controlled gold nanocrystals by regulating the amount of iron carbonyl, by which we produced highly monodisperse Au nanocrystals with various shapes in organic phase including nanoplates (diameter of 16.02 ± 1.13 nm and thickness of 5.35 ± 0.58 nm), nanorods (length of 37.53 ± 3.73 nm and width of 5.26 ± 0.37 nm) and nanospheres (diameter of 8.26 ± 0.38 nm). The single-parameter-tuned method reveals the dual roles of iron carbonyl for controlling the shapes of gold nanocrystals including reductant and oxidative etchant and empowers versatility in synthetic methodology for other noble metals. Moreover, catalytic activity shifting in shapes of nanocrystals was revealed based on the reduction of 4-nitrophenol, showing that the as-synthesized Au nanoplates displayed the enhanced catalytic performance with the lowest activation energy. Our work provides a brand-new pathway for shape-controlled synthesis of noble-metal nanocrystals and has a strong practical value in application fields.
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18
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Wu Q, Zhang G, Ma Y, Li M, Liu F, Huang H, Liu M, Zheng Y. Ultrafast Synthesis of Wavy Gold‐Silver Alloy Nanowires with Tunable Diameters in the Range of 2‐10 nm via a Seed‐Mediated Co‐Reduction. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001137] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Quansen Wu
- Department of Chemistry and Chemical Engineering Jining University Qufu, Shandong 273115 P. R. China
| | - Gongguo Zhang
- Department of Chemistry and Chemical Engineering Jining University Qufu, Shandong 273115 P. R. China
| | - Yanyun Ma
- Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Soochow University Suzhou, Jiangsu 215123 P. R. China
| | - Mengfan Li
- College of Materials Science and Engineering Hunan University Changsha, Hunan 410082 P. R. China
| | - Feng Liu
- International Research Center for Renewable Energy National Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an, Shanxi 710049 China
| | - Hongwen Huang
- College of Materials Science and Engineering Hunan University Changsha, Hunan 410082 P. R. China
| | - Maochang Liu
- International Research Center for Renewable Energy National Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University Xi'an, Shanxi 710049 China
| | - Yiqun Zheng
- Department of Chemistry and Chemical Engineering Jining University Qufu, Shandong 273115 P. R. China
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19
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Sun J, Wang J, Hu W, Wang Y, Chou T, Zhang Q, Zhang B, Yu Z, Yang Y, Ren L, Wang H. Camouflaged Gold Nanodendrites Enable Synergistic Photodynamic Therapy and NIR Biowindow II Photothermal Therapy and Multimodal Imaging. ACS APPLIED MATERIALS & INTERFACES 2021; 13:10778-10795. [PMID: 33646767 DOI: 10.1021/acsami.1c01238] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Gold nanodendrite (AuND)-based nanotheranostic agents with versatile capabilities were fabricated by optimizing the geometrical configurations (dendrite length and density) of AuND to achieve localized surface plasmon resonance (LSPR) in near-infrared biowindow II (NIR-II), and then subsequently functionalizing with a mitochondria-targeting compound (triphenylphosphonium, TPP), loading with an NIR-photosensitizer (indocyanine green, ICG) and coating with the macrophage cell membrane (MCM) to trap ICG within AuND and selectively interact with MDA-MB-231 cells. The novel AuND-TPP-ICG@MCM system enabled the integration of multimodal fluorescence/photoacoustic/surface-enhanced Raman imaging with synergistic therapies of NIR-II photothermal therapy and NIR-I photodynamic therapy for cancer treatment. Enhanced hyperthermia and elevated production of reactive oxygen species within the tumors via MCM coating and mitochondria targeting afforded a synergistic efficacy for tumor eradication with limited side effects. The demonstrated biocompatibility, multi-imaging capability, and high therapeutic efficiency under NIR laser irradiation indicate the potentials of this multifunctional nanotheranostic platform for clinical utility in cancer therapy.
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Affiliation(s)
- Jingyu Sun
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Jinping Wang
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
- Key Laboratory of Molecular Biophysics of Hebei Province, Institute of Biophysics, School of Sciences, Hebei University of Technology, Tianjin 300401, P. R. China
| | - Wei Hu
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Yuhao Wang
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Tsengming Chou
- Laboratory for Multiscale Imaging, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Qiang Zhang
- Department of Biomaterials, Key Laboratory of Biomedical Engineering of Fujian Province, State Key Lab of Physical Chemistry of Solid Surface, College of Materials, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Beilu Zhang
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Zhengqian Yu
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
| | - Yamin Yang
- Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, P. R. China
| | - Lei Ren
- Department of Biomaterials, Key Laboratory of Biomedical Engineering of Fujian Province, State Key Lab of Physical Chemistry of Solid Surface, College of Materials, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Hongjun Wang
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, New Jersey 07030, United States
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20
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Takano S, Tsukuda T. Chemically Modified Gold/Silver Superatoms as Artificial Elements at Nanoscale: Design Principles and Synthesis Challenges. J Am Chem Soc 2021; 143:1683-1698. [DOI: 10.1021/jacs.0c11465] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Shinjiro Takano
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tatsuya Tsukuda
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Elements Strategy Initiative for Catalysts and Batteries (ESICB), Kyoto University, Katsura, Kyoto 615-8520, Japan
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21
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Liu J, Wang S, Liu N, Yang D, Wang H, Hu H, Zhuang J, Wang X. Au-Polyoxometalates A-B-A-B Type Copolymer-Analogue Sub-1 nm Nanowires. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2006260. [PMID: 33373170 DOI: 10.1002/smll.202006260] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 12/15/2020] [Indexed: 06/12/2023]
Abstract
Here it is shown that polyoxometalate (POM) clusters (H3 PW12 O40 ·xH2 O, PW12 ) can be introduced to interact with Au nanoclusters to form the "A-B-A-B" type building block ("A" represents Au nanoclusters and "B" stands for PW12 clusters), which continue to grow into copolymer-analogue Au-PW12 sub-1 nm nanowires. Due to the synergetic effect of Au nanoclusters and POMs, the obtained Au-PW12 sub-1 nm nanowires efficiently perform catalytic activity in the photo-electrochemical converting CO2 into CO. Under light, the catalyst maintains remarkable faradic efficiency (FE) of ≈99% from -0.7 to -0.9V (RHE), which is better than that in dark (FE of 66.4-90.64% from -0.7 to -0.9 V (RHE)). Density functional theory calculations and cryo-electron microscope images support the "A-B-A-B" type of structure and mechanistic studies also reveal the higher reactivity toward COOH* formation and CO adsorption on the catalyst, which lead to the superior catalytic activity in CO2 reduction reaction.
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Affiliation(s)
- Junli Liu
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Shibin Wang
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Nan Liu
- Ministry of Education Key Laboratory of Protein Sciences, Beijing Advanced Innovation Center for Structural Biology, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Deren Yang
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Hongwei Wang
- Ministry of Education Key Laboratory of Protein Sciences, Beijing Advanced Innovation Center for Structural Biology, Tsinghua-Peking Joint Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Hanshi Hu
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Jing Zhuang
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xun Wang
- Key Lab of Organic Optoelectronics and Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing, 100084, China
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22
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Khanal BP, Zubarev ER. Gold Nanowires from Nanorods. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:15030-15038. [PMID: 33259716 DOI: 10.1021/acs.langmuir.0c02571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Gold nanowires (AuNWs) possess strong potential application in micro- and nanoelectronics as well as in plasmonic waveguides because of their low electrical resistance. However, the synthesis of pure solvent-dispersible AuNWs with full control over their length still remains a challenge. All the previously reported methods produce AuNWs with other impurities such as smaller nanorods, platelets, and spherical particles and are limited to a certain length (typically below 10 μm). This article describes a one-step synthesis of extremely long AuNWs (up to 25 μm) with great control over their dimensions by using pentahedrally twinned gold nanorods (AuNRs) as seed particles. To induce the AuNW growth, the reduction of Au(I) to Au(0) was carried out on the surface of AuNRs at a very low pH by introducing HCl into the growth solution. The slow conversion of Au(I) to Au(0) due to the increase in reduction potential at lower pH promoted the preferential deposition of metallic gold on the more reactive tips of AuNRs compared to their sides, resulting in the formation of AuNWs. In analogy to the "living" polymerization reaction, the length of the AuNWs was proportional to the amount of Au(I) added to the growth solution; thus, the desired length of AuNWs was achieved by controlling the supply of Au(I) ions in the reaction mixture. The AuNWs longer than 6 μm were found to be responsive to microwave radiation. When an aqueous solution of AuNWs was exposed to microwaves, the formation of sharp kinks was observed in several locations of AuNWs without their disintegration into smaller pieces.
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Affiliation(s)
- Bishnu P Khanal
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Eugene R Zubarev
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
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23
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On the ligand exchange, redox, and disproportionation processes of tetrachloroaurate in the presence of a pyridine derivative. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.137213] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Miyajima N, Wang YC, Nakagawa M, Kurata H, Imura Y, Wang KH, Kawai T. Water-Phase Synthesis of Ultrathin Au Nanowires with a Two-Dimensional Parallel Array Structure. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2020. [DOI: 10.1246/bcsj.20200183] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Naoya Miyajima
- Department of Industrial Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Yung-Chen Wang
- Department of Industrial Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
- Department of Bioengineering, University of Washington, Seattle, WA 98195-1653, USA
| | - Makoto Nakagawa
- Department of Industrial Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Hiroki Kurata
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Yoshiro Imura
- Department of Industrial Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Ke-Hsuan Wang
- Department of Industrial Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Takeshi Kawai
- Department of Industrial Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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25
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Seifert TP, Naina VR, Feuerstein TJ, Knöfel ND, Roesky PW. Molecular gold strings: aurophilicity, luminescence and structure-property correlations. NANOSCALE 2020; 12:20065-20088. [PMID: 33001101 DOI: 10.1039/d0nr04748a] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This review covers the compound class of one-dimensional gold strings. These compounds feature a formally infinite repetition of gold complexes as monomers/repeating units that are held together by aurophilic interactions, i.e. direct gold-gold contacts. Their molecular structures are primarily determined in the solid state using single crystal X-ray diffraction. The chemical composition of the employed gold complexes is diverse and furthermore plays a key role in terms of structure characteristics and the resulting properties. One of the most common features of gold strings is their photoluminescence upon UV excitation. The emission energy is often dependent on the distance of adjacent gold ions and the electronic structure of the whole string. In terms of gold strings, these parameters can be fine-tuned by external stimuli such as solvent, pH value, pressure or mechanical stress. This leads to direct structure-property correlations, not only with regard to the photophysical properties, but also electric conductivity for potential application in nanoelectronics. Concerning these correlations, gold strings, consisting of self-assembled individual complexes as building blocks, are the ideal compound class to look at, as perturbations by an inhomogeneity in the ligand sphere (such as the end of a molecule) can be neglected. Therefore, the aim of this review is to shed light on the past achievements and current developments in this area.
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Affiliation(s)
- Tim P Seifert
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, 76131 Karlsruhe, Germany.
| | - Vanitha R Naina
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, 76131 Karlsruhe, Germany.
| | - Thomas J Feuerstein
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, 76131 Karlsruhe, Germany.
| | - Nicolai D Knöfel
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, 76131 Karlsruhe, Germany.
| | - Peter W Roesky
- Institute of Inorganic Chemistry, Karlsruhe Institute of Technology (KIT), Engesserstr. 15, 76131 Karlsruhe, Germany.
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26
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Li P, Cao K, Gao L, Liao W, Liu J, Sun X, Wang H, Rao F, Lu Y. Cold welding assisted self-healing of fractured ultrathin Au nanowires. NANO EXPRESS 2020. [DOI: 10.1088/2632-959x/aba684] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Abstract
In nano-electronic field, cold welding is a simple novel method to join ultrathin noble metal nanowires (NWs) without introducing extra energy and defects. In previous works, it always occurred between ultrathin noble metal NWs, tensile fracture parts of a single NW, or a NW formation from nanoparticles. However, some external force is still needed to drive the materials as close to each other as possible before the process. Here, we proposed a new method to achieve cold welding without introducing artificial loadings. The bending fractured ultrathin gold (Au) NW can be self-healed assisted by cold welding during the removal of the tungsten (W) tip by in situ transmission electron microscope (TEM). A new interface with lattice mismatch formed in the welding zone after multiple periodic cycles, leaving an angle between the two rebonded fracture parts. Furthermore, the cold welding assisted self-healing of the bending fractured ultrathin Au NW and atom evolutions were also confirmed by molecular dynamics (MD) simulations. The successful implementation of cold welding makes the self-healing come true when the ultrathin Au NW fractures under the unexpected vibrations.
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Li P, Liao W, Yue L, Fan Z, Rao F. Key factors affecting Rayleigh instability of ultrathin 4H hexagonal gold nanoribbons. NANOSCALE ADVANCES 2020; 2:3027-3032. [PMID: 36132405 PMCID: PMC9419477 DOI: 10.1039/d0na00186d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 05/22/2020] [Indexed: 06/15/2023]
Abstract
Rayleigh instability was originally used to describe the phenomenon of a cylindrical fluid jet that transforms into a chain of droplets. Very recently, it has been extended to metallic nanostructures like gold (Au) and silver (Ag) nanowires (NWs), as well as mixed alloy NWs by some thermodynamic processes. To date, the key factors affecting the Rayleigh instability have not been well studied. To clarify this, we systematically investigate the features of Rayleigh instability in ultrathin 4H hexagonal Au nanoribbons (NRBs) under electron beam (E-beam) irradiation. We prove that by decreasing the initial widths of 4H Au NRBs and the E-beam current density, as well as the irradiation time and intensity per unit area, the Rayleigh instability can be effectively restrained. Our work thus sheds light on how to effectively reduce or even eliminate the Rayleigh instability of one dimensional nanomaterials.
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Affiliation(s)
- Peifeng Li
- College of Materials Science and Engineering, Shenzhen University Shenzhen 518060 China
| | - Weibing Liao
- College of Physics and Energy, Shenzhen University Shenzhen 518060 China
| | - Lijie Yue
- School of Materials Science and Engineering, Shandong University of Science and Technology Qingdao 266590 China
| | - Zhanxi Fan
- Department of Chemistry, City University of Hong Kong Kowloon 999077 Hong Kong China
- Hong Kong Branch of National Precious Metals Material Engineering Research Center (NPMM), City University of Hong Kong Hong Kong China
| | - Feng Rao
- College of Materials Science and Engineering, Shenzhen University Shenzhen 518060 China
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Polymer Lamellae as Reaction Intermediates in the Formation of Copper Nanospheres as Evidenced by In Situ X‐ray Studies. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004081] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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29
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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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30
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Mantella V, Strach M, Frank K, Pankhurst JR, Stoian D, Gadiyar C, Nickel B, Buonsanti R. Polymer Lamellae as Reaction Intermediates in the Formation of Copper Nanospheres as Evidenced by In Situ X-ray Studies. Angew Chem Int Ed Engl 2020; 59:11627-11633. [PMID: 32315499 DOI: 10.1002/anie.202004081] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Indexed: 01/02/2023]
Abstract
The classical nucleation theory (CNT) is the most common theoretical framework used to explain particle formation. However, nucleation is a complex process with reaction pathways which are often not covered by the CNT. Herein, we study the formation mechanism of copper nanospheres using in situ X-ray absorption and scattering measurements. We reveal that their nucleation involves coordination polymer lamellae as pre-nucleation structures occupying a local minimum in the reaction energy landscape. Having learned this, we achieved a superior monodispersity for Cu nanospheres of different sizes. This report exemplifies the importance of developing a more realistic picture of the mechanism involved in the formation of inorganic nanoparticles to develop a rational approach to their synthesis.
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Affiliation(s)
- Valeria Mantella
- Department of Chemical Sciences and Engineering, EPFL Valais Wallis, 1951, Sion, Switzerland
| | - Michal Strach
- Department of Chemical Sciences and Engineering, EPFL Valais Wallis, 1951, Sion, Switzerland
| | - Kilian Frank
- Department of Physics and Center for Nanoscience (CeNs), Ludwig-Maximilians Universität München, Germany
| | - James R Pankhurst
- Department of Chemical Sciences and Engineering, EPFL Valais Wallis, 1951, Sion, Switzerland
| | - Dragos Stoian
- Department of Chemical Sciences and Engineering, EPFL Valais Wallis, 1951, Sion, Switzerland
| | - Chethana Gadiyar
- Department of Chemical Sciences and Engineering, EPFL Valais Wallis, 1951, Sion, Switzerland
| | - Bert Nickel
- Department of Physics and Center for Nanoscience (CeNs), Ludwig-Maximilians Universität München, Germany
| | - Raffaella Buonsanti
- Department of Chemical Sciences and Engineering, EPFL Valais Wallis, 1951, Sion, Switzerland
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31
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Zeman CJ, Shen YH, Heller JK, Abboud KA, Schanze KS, Veige AS. Excited-State Turn-On of Aurophilicity and Tunability of Relativistic Effects in a Series of Digold Triazolates Synthesized via iClick. J Am Chem Soc 2020; 142:8331-8341. [PMID: 32267156 DOI: 10.1021/jacs.0c01624] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
iClick reactions between Au(I) acetylides PPh3Au-C≡CR, where R = nitrophenyl (PhNO2), phenyl (Ph), thiophene (Th), bithiophene (biTh), and dimethyl aniline (PhNMe2), and Au(I)-azide PPh3AuN3 provide digold complexes of the general formula R-1,5-bis-triphenylphosphinegold(I) 1,2,3-triazolate (Au2-R). Within the digold triazolate complexes the Au(I) atoms are held in close proximity but beyond the distance typically observed for aurophilic bonding. Though no bond exists in the ground state, time-dependent density functional theory interrogation of the complexes reveals excited states with significant aurophilic bonding. The series of complexes allows for tuning of the excited-state "turn-on" of aurophilicity, where ligand to metal charge transfer (LMCT) induces the aurophilic bonding. Complexes containing ligand-localized excited states, however, do not exhibit aurophilicity in the excited state. As a control experiment, a monogold complex was synthesized. The computed excited state of the monogold species exhibited LMCT to the gold ion as in the dinuclear cases, but without a partnering gold ion only a distinct N-Au-P bending occurs, revealing a potential mechanism for the excited-state turn-on of aurophilic bonding. Analysis of the steady-state electronic spectra indicates that LMCT states are achievable for compounds with sufficiently strong electron-donating ligands, and in digold complexes this is associated with enhanced fluorescence, suggestive of an aurophilic interaction.
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Affiliation(s)
- Charles J Zeman
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States.,Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249, United States
| | - Yu-Hsuan Shen
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Jessica K Heller
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Khalil A Abboud
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Kirk S Schanze
- Department of Chemistry, University of Texas at San Antonio, One UTSA Circle, San Antonio, Texas 78249, United States
| | - Adam S Veige
- Department of Chemistry, Center for Catalysis, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
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Aguiló E, Dalmases M, Lin M, Lima JC, Gavara R, Figuerola A, Llorca J, Rodríguez L. Facile morphology control of gold(0) structures from aurophilic assemblies. Dalton Trans 2020; 49:4200-4205. [PMID: 32181467 DOI: 10.1039/d0dt00277a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Different gold microstructures have been synthesized by using supramolecular gold(i) organometallic compounds as templates and Ag nanoparticles as reducing agents. The use of fibers resulting from supramolecular assemblies of neutral gold(i) compounds gives rise to the formation of microrods. The use of supramolecular assemblies from ionic molecules results in spherical or square-based prism gold microstructures, depending on the shape of the supramolecular gold(i) precursor assembly. In addition to temperature and reaction time, solvents exert a strong influence on the formation and morphology of gold structures, as borne out by the example that well-defined star-like morphologies have been obtained in chloroform.
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Affiliation(s)
- Elisabet Aguiló
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
| | - Mariona Dalmases
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain. and Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, 08028 Barcelona, Spain
| | - Mengxi Lin
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain. and Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, 08028 Barcelona, Spain
| | - João Carlos Lima
- LAQV-REQUIMTE, Departamento de Química, Universidade Nova de Lisboa, Monte de Caparica, Portugal
| | - Raquel Gavara
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain.
| | - Albert Figuerola
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain. and Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, 08028 Barcelona, Spain
| | - Jordi Llorca
- Institute of Energy Technologies, Department of Chemical Engineering and Barcelona Research Center for Multiscale Science and Engineering, Universitat Politècnica de Catalunya, EEBE Eduard Maristany 10-14, 08019 Barcelona, Spain.
| | - Laura Rodríguez
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain. and Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona, 08028 Barcelona, Spain
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33
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Gong S, Yap LW, Zhu B, Cheng W. Multiscale Soft-Hard Interface Design for Flexible Hybrid Electronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1902278. [PMID: 31468635 DOI: 10.1002/adma.201902278] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 06/20/2019] [Indexed: 06/10/2023]
Abstract
Emerging next-generation soft electronics will require versatile properties functioning under mechanical compliance, which will involve the use of different types of materials. As a result, control over material interfaces (particularly soft/hard interfaces) has become crucial and is now attracting intensive worldwide research efforts. A series of material and structural interface designs has been devised to improve interfacial adhesion, preventing failure of electromechanical properties under mechanical deformation. Herein, different soft/hard interface design strategies at multiple length scales in the context of flexible hybrid electronics are reviewed. The crucial role of soft ligands and/or polymers in controlling the morphologies of active nanomaterials and stabilizing them is discussed, with a focus on understanding the soft/hard interface at the atomic/molecular scale. Larger nanoscopic and microscopic levels are also discussed, to scrutinize viable intrinsic and extrinsic interfacial designs with the purpose of promoting adhesion, stretchability, and durability. Furthermore, the macroscopic device/human interface as it relates to real-world applications is analyzed. Finally, a perspective on the current challenges and future opportunities in the development of truly seamlessly integrated soft wearable electronic systems is presented.
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Affiliation(s)
- Shu Gong
- Department of Chemical Engineering, Monash University, Clayton, Victoria, 3800, Australia
- The Melbourne Centre for Nanofabrication, Clayton, 151 Wellington Road, Victoria, 3800, Australia
| | - Lim Wei Yap
- Department of Chemical Engineering, Monash University, Clayton, Victoria, 3800, Australia
- The Melbourne Centre for Nanofabrication, Clayton, 151 Wellington Road, Victoria, 3800, Australia
| | - Bowen Zhu
- Department of Chemical Engineering, Monash University, Clayton, Victoria, 3800, Australia
- The Melbourne Centre for Nanofabrication, Clayton, 151 Wellington Road, Victoria, 3800, Australia
| | - Wenlong Cheng
- Department of Chemical Engineering, Monash University, Clayton, Victoria, 3800, Australia
- The Melbourne Centre for Nanofabrication, Clayton, 151 Wellington Road, Victoria, 3800, Australia
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34
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He H, Chen R, Zhang L, Williams T, Fang X, Shen W. Fabrication of single-crystalline gold nanowires on cellulose nanofibers. J Colloid Interface Sci 2020; 562:333-341. [PMID: 31855796 DOI: 10.1016/j.jcis.2019.11.093] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 11/12/2019] [Accepted: 11/23/2019] [Indexed: 11/16/2022]
Abstract
Cellulose nanofibers (CNF) are promising nanomaterials for functional inks and printed sensors, although the potential applications are currently limited by the available functionalization methods. This work outlines a convenient method to grow a novel and highly conductive network of single-crystalline gold nanowires (AuNW) on CNF for use in conductive inks and printed sensors. The CNF are able to reduce Au (III) precursors to Au (0) monomers and generate nucleation sites for the subsequent monomer-by-monomer growth of Au nanocrystals; sodium citrate is used to control the reduction kinetics and the crystal growth. The growth of these AuNW/CNF materials is a three-step process of redox reaction, isotropic nucleation and anisotropic crystallization: the morphology and crystal structure of Au nanocrystals on CNF can be controlled by adjusting the reaction temperature and concentrations of citrate and CNF. The AuNW/CNF materials obtained have been formulated into highly conductive and atmospherically stable inks for use in either directly writing or screen printing. We have demonstrated AuNW/CNF-printed sensors with highly controllable electrical conductivity as well as excellent stability against rinsing and immersion by water and ethanol.
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Affiliation(s)
- Hui He
- Department of Chemical Engineering, Monash University, Clayton, VIC 3800, Australia.
| | - Ruoyang Chen
- Department of Chemical Engineering, Monash University, Clayton, VIC 3800, Australia.
| | - Liyuan Zhang
- Department of Chemical Engineering, Monash University, Clayton, VIC 3800, Australia; National Local Joint Engineering Laboratory for Advanced Textile Processing and Clean Production, Science & Technology Institute, Wuhan Textile University, Jiangxia, Hubei 430200, PR China.
| | - Timothy Williams
- Monash Centre for Electron Microscopy, Monash University, Clayton, VIC 3800, Australia
| | - Xiya Fang
- Monash Centre for Electron Microscopy, Monash University, Clayton, VIC 3800, Australia
| | - Wei Shen
- Department of Chemical Engineering, Monash University, Clayton, VIC 3800, Australia.
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35
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Beto CC, Zeman CJ, Yang Y, Bullock JD, Holt ED, Kane AQ, Makal TA, Yang X, Ghiviriga I, Schanze KS, Veige AS. An Application Exploiting Aurophilic Bonding and iClick to Produce White Light Emitting Materials. Inorg Chem 2020; 59:1893-1904. [PMID: 31961144 DOI: 10.1021/acs.inorgchem.9b03195] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The paper focuses on exploiting aurophilic bonding to produce white light emitting materials. Inorganic Click (iClick) is employed to link two or four Au(I) metal ions through a triazolate bridge. Depending on the choice of phosphine ligand (PEt3 or PPh3), dinuclear Au2-FO or tetranuclear Au4-FO complexes can be controllably synthesized (FO = 2-(9,9-dioctylfluoreneyl-)). The iClick products Au2-FO and Au4-FO are characterized by combustion analysis and multinuclear NMR, TOCSY 1D, 1H-13C gHMBC, and 1H-13C gHSQC. In addition, the photophysical properties of Au2-FO and Au4-FO were examined in THF solution. Transient absorption spectroscopy was employed to elucidate the excited state features of the gold compounds. Solution processed OLEDs were fabricated and characterized, which gave white light electroluminescence with CIE coordinates (0.34, 0.36), as seen referenced to CIE standard illuminant D65 (0.31, 0.32). TDDFT computational analysis of Au2-FO and Au4-FO reveals the origin of light emission. In the case of Au4-FO, direct excitation leads to increased aurophilic bonding in the excited state, and as a result the emission profile is broadened to cover a larger region of the visible spectrum, thus giving white light emission. Designing molecules that can access or increase aurophilic bonding in the excited state provides another tool for fine-tuning the emission profiles of gold complexes.
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Affiliation(s)
- Christopher C Beto
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| | - Charles J Zeman
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| | - Yajing Yang
- Department of Chemistry , University of Texas at San Antonio , One UTSA Circle , San Antonio , Texas 78249 , United States
| | - James D Bullock
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| | - Ethan D Holt
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| | - Alexander Q Kane
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| | - Trevor A Makal
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| | - Xi Yang
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| | - Ion Ghiviriga
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
| | - Kirk S Schanze
- Department of Chemistry , University of Texas at San Antonio , One UTSA Circle , San Antonio , Texas 78249 , United States
| | - Adam S Veige
- Department of Chemistry, Center for Catalysis , University of Florida , P.O. Box 117200 , Gainesville , Florida 32611 , United States
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36
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Lv L, Han X, Wu X, Li C. The synthesis of high-aspect-ratio Au microwires with a biomolecule for electrochemical sensing. Chem Commun (Camb) 2020; 56:743-746. [PMID: 31844851 DOI: 10.1039/c9cc06523g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gold (Au) crystalline microwires with an unprecedented diameter of >500 nm and an aspect ratio >400 were synthesized using l-tyrosine as a reducing and capping agent. The Au microwires possessed high conductivity and electrocatalytic activities towards glucose and Hg(ii). Their large diameters and aspect ratios also offered maneuverability, and it was easy to produce Au microelectrodes.
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Affiliation(s)
- Lili Lv
- CAS Key Lab of Bio-based materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China.
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37
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Zhang G, Ma Y, Liu F, Nie Y, Liu Z, Fu X, Luan X, Qu F, Liu M, Zheng Y. Seeded growth of gold–silver ultrathin wire–dot hybrid nanostructures. CrystEngComm 2020. [DOI: 10.1039/d0ce01009j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Gold–silver hybrid nanostructures in the form of “ultrathin wire–dots” are prepared in high purity via seeded growth.
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Affiliation(s)
- Gongguo Zhang
- Department of Chemistry and Chemical Engineering
- Jining University
- Qufu
- P. R. China
| | - Yanyun Ma
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices
- Soochow University
- Suzhou
- P. R. China
| | - Feng Liu
- International Research Center for Renewable Energy
- National Key Laboratory of Multiphase Flow in Power Engineering
- Xi'an Jiaotong University
- Xi'an
- China
| | - Yuting Nie
- Institute of Functional Nano & Soft Materials (FUNSOM)
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices
- Soochow University
- Suzhou
- P. R. China
| | - Zhiang Liu
- International Research Center for Renewable Energy
- National Key Laboratory of Multiphase Flow in Power Engineering
- Xi'an Jiaotong University
- Xi'an
- China
| | - Xiaowei Fu
- Department of Chemistry and Chemical Engineering
- Jining University
- Qufu
- P. R. China
| | - Xiaoqian Luan
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - Fengli Qu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - Maochang Liu
- International Research Center for Renewable Energy
- National Key Laboratory of Multiphase Flow in Power Engineering
- Xi'an Jiaotong University
- Xi'an
- China
| | - Yiqun Zheng
- Department of Chemistry and Chemical Engineering
- Jining University
- Qufu
- P. R. China
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38
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Sathiyaraj E, Thirumaran S. Structural, morphological and optical properties of iron sulfide, cobalt sulfide, copper sulfide, zinc sulfide and copper-iron sulfide nanoparticles synthesized from single source precursors. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2019.136972] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Gao H, Bettscheider S, Kraus T, Müser MH. Entropy Can Bundle Nanowires in Good Solvents. NANO LETTERS 2019; 19:6993-6999. [PMID: 31536363 DOI: 10.1021/acs.nanolett.9b02379] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Surfaces with surface-bound ligand molecules generally attract each other when immersed in poor solvents but repel each other in good solvents. While this common wisdom holds, for example, for oleylamine-ligated ultrathin nanowires in the poor solvent ethanol, the same nanowires were recently observed experimentally to bundle even when immersed in the good solvent n-hexane. To elucidate the respective binding mechanisms, we simulate both systems using molecular dynamics. In the case of ethanol, the solvent is completely depleted at the interface between two ligand shells so that their binding occurs, as expected, via direct interactions between ligands. In the case of n-hexane, ligands attached to different nanowires do not touch. The binding occurs because solvent molecules penetrating the shells preferentially orient their backbone normal to the wire, whereby they lose entropy. This entropy does not have to be summoned a second time when the molecules penetrate another nanowire. For the mechanism to be effective, the ligand density appears to best be intermediate, that is, small enough to allow solvent molecules to penetrate, but not so small that ligands do not possess a clear preferred orientation at the interface to the solvent. At the same time, solvent molecules may be neither too large nor too small for similar reasons. Experiments complementing the simulations confirm the predicted trends.
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Affiliation(s)
- Hongyu Gao
- Department of Materials Science and Engineering , Saarland University , Campus C6 3 , 66123 Saarbrücken , Germany
| | - Simon Bettscheider
- INM - Leibniz Institute for New Materials , Campus D2 2 , 66123 Saarbrücken , Germany
- Colloid and Interface Chemistry , Saarland University , Campus D2 2 , 66123 Saarbrücken , Germany
| | - Tobias Kraus
- INM - Leibniz Institute for New Materials , Campus D2 2 , 66123 Saarbrücken , Germany
- Colloid and Interface Chemistry , Saarland University , Campus D2 2 , 66123 Saarbrücken , Germany
| | - Martin H Müser
- Department of Materials Science and Engineering , Saarland University , Campus C6 3 , 66123 Saarbrücken , Germany
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40
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Imura Y, Kataoka H, Saito H, Minakawa M, Morita‐Imura C, Kawai T. Morphological Stability and Catalytic Performance of Supported and Unsupported Dendritic Gold Nanowire Catalysts. ChemistrySelect 2019. [DOI: 10.1002/slct.201902594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yoshiro Imura
- Department of Industrial ChemistryTokyo University of Science 1–3 Kagurazaka, Shinjuku-ku Tokyo 162-8601 Japan
| | - Hiroki Kataoka
- Department of Industrial ChemistryTokyo University of Science 1–3 Kagurazaka, Shinjuku-ku Tokyo 162-8601 Japan
| | - Haruna Saito
- Department of Industrial ChemistryTokyo University of Science 1–3 Kagurazaka, Shinjuku-ku Tokyo 162-8601 Japan
| | - Muneharu Minakawa
- Department of Industrial ChemistryTokyo University of Science 1–3 Kagurazaka, Shinjuku-ku Tokyo 162-8601 Japan
| | - Clara Morita‐Imura
- Faculty of Core ResearchOchanomizu University 2–1–1 Otsuka, Bunkyo-ku Tokyo 112-8610 Japan
| | - Takeshi Kawai
- Department of Industrial ChemistryTokyo University of Science 1–3 Kagurazaka, Shinjuku-ku Tokyo 162-8601 Japan
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Solvent-triggered reversible interconversion of all-nitrogen-donor-protected silver nanoclusters and their responsive optical properties. Nat Commun 2019; 10:4032. [PMID: 31492835 PMCID: PMC6731268 DOI: 10.1038/s41467-019-11988-y] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Accepted: 08/15/2019] [Indexed: 01/23/2023] Open
Abstract
Surface organic ligands are critical in determining the formation and properties of atomically precise metal nanoclusters. In contrast to the conventionally used thiolate, phosphine and alkynyl ligands, the amine ligand dipyridylamine is applied here as a protecting agent in the synthesis of atomically precise metal nanoclusters. We report two homoleptic amido-protected Ag nanoclusters as examples of all-nitrogen-donor-protected metal nanoclusters: [Ag21(dpa)12]SbF6 (Ag21) and [Ag22(dpa)12](SbF6)2 (Ag22) (dpa = dipyridylamido). Single crystal X-ray structural analysis reveals that both clusters consist of a centered-icosahedron Ag13 core wrapped by 12 dpa ligands. The flexible arrangement of the N donors in dpa facilitates the solvent-triggered reversible interconversion between Ag21 and Ag22 due to their very different solubility. The successful use of dpa in the synthesis of well-defined silver nanoclusters may motivate more studies on metal nanoclusters protected by amido type ligands. Noble metal nanoclusters are commonly protected by thiolate, phosphine, or alkynyl ligands. Here, the authors synthesize two homoleptic amido-protected silver clusters, whose structures interconvert easily with changes of solvent due to the coordination flexibility and diverse binding modes of the nitrogen-donor ligands.
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42
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Li H, Li J, Jia Y, Liao F, Xu Y, Sun L, Yan C, Li Y, Bie L, Ju J. Crystallization of Gd 2O 3 nanoparticles: evolution of the microstructure via electron-beam manipulation. NANOSCALE 2019; 11:14952-14958. [PMID: 31364654 DOI: 10.1039/c9nr04097h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
NaGdF4 is one of the most commonly employed phosphor host matrices for lanthanide doping and is one of the most efficient infrared-to-visible up-conversion fluorescent host materials. Although the structure, morphology and luminescence properties of NaREF4 have been sufficiently investigated, there are very few reported instances of introducing localized order/crystallinity by electron-beam (e-beam) irradiation. In this work, we studied the phase transformation of Gd2O3 from an amorphous to crystalline form via manipulation by e-beam irradiation. The amorphous Gd2O3 occurs as an impurity in the cubic-NaGdF4 nanoparticles (NPs). The structural evolutions, including the transformation from amorphous to crystalline, the recrystallization process and the formation of the graphene@NP core-shell structure, are discussed in detail. We also propose an evolution scheme, in which the e-beam manipulation of the organic-containing NPs induces a subtle structural transformation, depending in principle on the microenvironment of the NPs.
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Affiliation(s)
- He Li
- School of Materials Science and Engineering, Hebei Provincial Key Laboratory of Traffic Engineering Materials, Shijiazhuang Tiedao University, Shijiazhuang 050043, China
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43
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Affiliation(s)
- Ryo Takahata
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tatsuya Tsukuda
- Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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44
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Li P, Zhan H, Tian S, Wang J, Wang X, Zhu Z, Dai J, Dai Y, Wang Z, Zhang C, Huang X, Huang W. Sequential Ligand Exchange of Coordination Polymers Hybridized with In Situ Grown and Aligned Au Nanowires for Rapid and Selective Gas Sensing. ACS APPLIED MATERIALS & INTERFACES 2019; 11:13624-13631. [PMID: 30888141 DOI: 10.1021/acsami.9b02286] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Combining polymeric materials and conductive one-dimensional metal nanostructures is able to achieve enhanced chemical and electrical properties, but the control over their morphology and spatial arrangement remains a big challenge. Herein, by replacing benzenedicarboxylate (BDC) in ZnBDC nanoplates with oleylamine (OAM) in the presence of HAuCl4, Zn-OAM nanobelts with a highly ordered laminar structure were obtained, on which ultrathin Au nanowires (Au NWs) were deposited and aligned along the long axes of the nanobelts. The resulting Zn-OAM/Au NW hybrid further underwent an OAM-to-2-methylimidazole ligand exchange, resulting in the formation of porous nanobelts composed of ZIF-8 nanocrystals interwound with aligned Au NWs. Due to the synergistic effect between the polymeric and metallic structures, the Zn-OAM/Au NW hybrid nanobelts and ZIF-8/Au NW porous nanobelts demonstrated fast and selective gas sensing at ambient conditions, in sharp contrast to the nonresponsive Au NWs or Zn-based polymers alone.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Wei Huang
- Shaanxi Institute of Flexible Electronics (SIFE) , Northwestern Polytechnical University (NPU) , 127 West Youyi Road , Xi'an 710072 , P.R. China
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45
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Morita-Imura C, Mita S, Shindo H. Effect of the Air/Water Interfacial Properties of Amine Derivatives on the in Situ Fabrication of Microsized Gold Sheets. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:4029-4036. [PMID: 30798609 DOI: 10.1021/acs.langmuir.8b04049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Development of new methods for producing large-area nanocrystals with specific shapes is crucial for advancements in various fields. In this study, submillimeter-sized sheet-structured gold crystals with nanoscale thicknesses were fabricated by chemical reduction of HAuCl4 in the presence of long-chain amidoamine-derived surfactants (C nAOH; n = 12, 14, 16, or 18) in aqueous solutions. Using the C18AOH system at 30 °C, large-area sheet-structured crystals with widths of ∼100 μm and thicknesses of 30 nm were effectively obtained at the air/water interface. The crystal size depended on the temperature and the alkyl-chain length of the surfactant. An investigation of the relationship between the crystal growth and the interfacial properties of C nAOH revealed that large-area crystals were obtained when densely packed molecular layers of long-chain C nAOH were formed at the air/water interface. The interfacial molecular layer of C18AOH showed most effective soft-templating effect and contributed in promoting the growth of sheet-structured gold crystals.
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Affiliation(s)
- Clara Morita-Imura
- Department of Chemistry, Faculty of Science , Ochanomizu University , 2-1-1 Otsuka , Bunkyo-ku, Tokyo 112-8610 , Japan
| | - Saeko Mita
- Department of Applied Chemistry, Graduate School of Science and Engineering , Chuo University , 1-13-27 Kasuga , Bunkyo-ku, Tokyo 112-8551 , Japan
| | - Hitoshi Shindo
- Department of Applied Chemistry, Graduate School of Science and Engineering , Chuo University , 1-13-27 Kasuga , Bunkyo-ku, Tokyo 112-8551 , Japan
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46
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Huo D, Kim MJ, Lyu Z, Shi Y, Wiley BJ, Xia Y. One-Dimensional Metal Nanostructures: From Colloidal Syntheses to Applications. Chem Rev 2019; 119:8972-9073. [DOI: 10.1021/acs.chemrev.8b00745] [Citation(s) in RCA: 180] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Da Huo
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
| | - Myung Jun Kim
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Zhiheng Lyu
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Yifeng Shi
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Benjamin J. Wiley
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332, United States
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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47
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Kehoe DK, McCarthy SA, Gun'ko YK. Tunable synthesis of ultrathin AuAg nanowires and their catalytic applications. NANOSCALE 2019; 11:4328-4336. [PMID: 30793129 DOI: 10.1039/c8nr09236b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Metallic nanowires (NWs) are very interesting and important nanomaterials with unique properties and a number of potential applications. Herein we report a tunable synthesis of water soluble ultrathin AuAg NWs. By using TEM and UV-vis spectroscopy, we demonstrate that these NWs can be produced by a new two-step process, which involves the formation of NW templates during the aging period and the subsequent formation of thicker NWs by a solvent driven fusion and wetting process. Our control studies further show that silver concentration plays a key role in the formation of these nanowires. We also demonstrate that these nanowires can effectively catalyse the reduction of 4-nitrophenol to the corresponding 4-aminophenol. Interestingly, the larger diameter ultrathin nanowires (av. 8 nm) exhibit a greater catalytic performance than the thinner nanowires (av. 3 nm). We believe that these studies are important for further development of one dimensional metal based nanomaterials, which may find a range of potential research and technological applications.
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Affiliation(s)
- Daniel K Kehoe
- School of Chemistry and Amber Research Centre, University of Dublin, Trinity College, Dublin 2, Ireland.
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48
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Morphology-Controlled Versatile One-Pot Synthesis of Hydrophobic Gold Nanodots, Nanobars, Nanorods, and Nanowires and Their Applications in Surface-Enhanced Raman Spectroscopy. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9050935] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Many previously reported syntheses of gold nanoparticles required lengthy reaction times, complicated operations, high temperatures, or multi-step manipulations. In this work, a morphology-controlled versatile one-pot synthesis of hydrophobic gold nanodots, nanobars, nanorods, and nanowires has been developed. A series of gold nanomaterials ranging from round nanodots, short nanobars, and long nanorods to ultrathin and ultralong nanowires (diameter <2 nm, length >2 μm) have been readily prepared by simply adjusting the feeding ratio of chloroauric acid to oleylamine, oleic acid, and triphenylsilane. The silk-like ultralong and ultrathin nanowires were found to have a single crystalline structure and may have significant potential applications in microelectronics and biosensors. Large sizes of gold spherical nanoparticles were obtained from gold nanodots via a seed-mediated growth approach. These nanoparticles and ultralong nanowires showed excellent surface-enhanced Raman scattering (SERS) activity in organic solvents and, therefore, were employed as efficient organic-soluble SERS substrates for the detection of hydrophobic food toxicants, such as 3,4-benzopyrene, and carcinogens, such as benzidine.
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49
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Imura Y, Akiyama R, Furukawa S, Kan R, Morita-Imura C, Komatsu T, Kawai T. Au-Ag Nanoflower Catalysts with Clean Surfaces for Alcohol Oxidation. Chem Asian J 2019; 14:547-552. [PMID: 30600927 DOI: 10.1002/asia.201801711] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Revised: 12/25/2018] [Indexed: 12/30/2022]
Abstract
Shape-controlled metal nanocrystals, such as nanowires and nanoflowers, are attractive owing to their potentially novel catalytic properties and bimetallic nanocrystals composed of two distinct metals are expected to act as highly active catalysts. However, their catalytic activities are limited because of the capping agents adsorbed on the metal surfaces, which are necessary for the preparation and dispersion of these nanocrystals in solvents. Therefore, the preparation of bimetallic shape-controlled noble metal nanocrystals with clean surfaces, devoid of almost all capping agents, are expected to have high catalytic activity. Herein, we report the preparation of bimetallic Au-Ag nanoflowers using melamine as the capping agent. The bimetallic Au-Ag nanoflowers with a clean surface were subsequently obtained by a support and extraction method. The bimetallic nanoflowers with a clean surface were then used for the aerobic oxidation of 1-phenylethyl alcohol and they exhibited high rates for the formation of acetophenone compared to Au nanoflowers and spherical nanoparticles with almost the same size and Au/Ag ratio. We also show that Au-Ag nanoflowers containing only 1 % Ag (Au99 -Ag1 NFs) exhibit the highest rate of acetophenone formation among Au-Ag nanoflowers with different Au/Ag ratios owing to an increase in the electron density of the Au atoms that act as active sites for the oxidation of 1-phenylethyl alcohol.
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Affiliation(s)
- Yoshiro Imura
- Department of Industrial Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.,Department of Chemistry, Tokyo Institute of Technology, 2-12-1-E1-10 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Ryota Akiyama
- Department of Industrial Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Shinya Furukawa
- Institute for Catalysis, Hokkaido University, N21, W10, Kita-ku, Sapporo, 001-0021, Japan
| | - Ryota Kan
- Department of Industrial Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Clara Morita-Imura
- Faculty of Core Research, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo, 112-8610, Japan
| | - Takayuki Komatsu
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1-E1-10 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Takeshi Kawai
- Department of Industrial Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
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50
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Lu Q, Zhu L, Han S, Hou Y, Cao W. Photocatalytic synthesis of gold nanoparticles using TiO2 nanorods: a mechanistic investigation. Phys Chem Chem Phys 2019; 21:18753-18757. [DOI: 10.1039/c9cp02493j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we investigate the mechanism of photocatalytic synthesis of noble metal nanoparticles by reductive photoelectrons generated from semiconductors.
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Affiliation(s)
- Qipeng Lu
- Department of Inorganic Nonmetallic Materials
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Lijie Zhu
- School of Instrument Science and Opto-Electronics Engineering
- Beijing Information Science and Technology University
- Beijing 100192
- P. R. China
| | - Sumei Han
- Department of Inorganic Nonmetallic Materials
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Yanbing Hou
- Key laboratory of Luminescence and Optical Information
- Ministry of Education
- Beijing JiaoTong University
- Beijing 100044
- P. R. China
| | - Wenbin Cao
- Department of Inorganic Nonmetallic Materials
- School of Materials Science and Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
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