101
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Lv H, Xu D, Sun L, Henzie J, Suib SL, Yamauchi Y, Liu B. Ternary Palladium-Boron-Phosphorus Alloy Mesoporous Nanospheres for Highly Efficient Electrocatalysis. ACS NANO 2019; 13:12052-12061. [PMID: 31513375 DOI: 10.1021/acsnano.9b06339] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Alloying palladium (Pd) catalysts with various metalloid and nonmetal elements can improve their catalytic performance in different chemical reactions. However, current nanosynthesis methods can only generate Pd alloys containing one metalloid or nonmetal, which limits the types of element combinations that may be used to improve Pd-based nanocatalysts. Herein, we report a simple soft-templating synthetic strategy to co-alloy Pd with the metalloid boron (B) and the nonmetal phosphorus (P) to generate ternary PdBP mesoporous nanospheres (MSs) with three-dimensional dendritic frameworks. We use a one-step aqueous synthesis method where dimethylamine borane and sodium hypophosphite serve as the B and P sources, respectively, as well as the co-reducing agents to drive the nucleation and growth of ternary PdBP alloy on a sacrificial dioctadecyldimethylammonium chloride template. The concentration of metalloid to nonmetal and the diameters of dendritic MSs can be tailored. The synthetic protocol is also extended to other multicomponent PdMBP alloy MSs to generate different types of dendritic mesoporous frameworks. Boron and phosphorus are known to accelerate the kinetics of the electrochemical oxygen reduction reaction (ORR) and alcohol oxidation reactions (AORs), because their alloys promote the decomposition of oxygen-containing intermediates on Pd surfaces. The dendritic mesoporous morphology of the ternary PdBP MSs also accelerates electron/mass transfer and exposes numerous active sites, enabling better performance in the ORR and AORs. Extending the surfactant-templating synthetic route to multiple types of elements will enable the generation of libraries of multicomponent metal-metalloid-nonmetal alloy nanostructures with functions that are suitable for various targeted applications.
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Affiliation(s)
- Hao Lv
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
| | - Dongdong Xu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
| | - Lizhi Sun
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
| | - Joel Henzie
- Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , China
- International Center for Materials Nanoarchitectonics (WPI-MANA) , National Institute for Materials Science (NIMS) , 1-1 Namiki, Tsukuba , Ibaraki 305-0044 , Japan
| | - Steven L Suib
- Department of Chemistry and Institute of Materials Science , University of Connecticut , Storrs , Connecticut 06269 , United States
| | - Yusuke Yamauchi
- Key Laboratory of Eco-chemical Engineering, College of Chemistry and Molecular Engineering , Qingdao University of Science and Technology , Qingdao 266042 , China
- School of Chemical Engineering and Australian Institute for Bioengineering and Nanotechnology (AIBN) , The University of Queensland , Brisbane , QLD 4072 , Australia
- Department of Plant & Environmental New Resources , Kyung Hee University , 1732 Deogyeong-daero, Giheung-gu, Yongin-si , Gyeonggi-do 446-701 , South Korea
| | - Ben Liu
- Jiangsu Key Laboratory of New Power Batteries, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science , Nanjing Normal University , Nanjing 210023 , China
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102
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Zheng K, Fung V, Yuan X, Jiang DE, Xie J. Real Time Monitoring of the Dynamic Intracluster Diffusion of Single Gold Atoms into Silver Nanoclusters. J Am Chem Soc 2019; 141:18977-18983. [DOI: 10.1021/jacs.9b05776] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Kaiyuan Zheng
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585 Singapore
| | - Victor Fung
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Xun Yuan
- College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - De-en Jiang
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Jianping Xie
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585 Singapore
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, P. R. China
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103
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Liu B, Gutha RR, Kattel B, Alamri M, Gong M, Sadeghi SM, Chan WL, Wu JZ. Using Silver Nanoparticles-Embedded Silica Metafilms as Substrates to Enhance the Performance of Perovskite Photodetectors. ACS APPLIED MATERIALS & INTERFACES 2019; 11:32301-32309. [PMID: 31436955 DOI: 10.1021/acsami.9b10706] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Plasmonic metal nanostructures provide a promising strategy for light trapping and therefore can dramatically enhance photocurrent in optoelectronics only if the trapped light can be coupled effectively from plasmons to excitons, whereas the reverse transfer of energy, charge, and heat from excitons to plasmons can be suppressed. Motivated by this, this work develops a scheme to implement a metafilm with Ag nanoparticles (NPs) embedded in 10 nm thick silica (Ag NPs-silica metafilm) to the active device channel of a hybrid perovskite film/graphene photodetector. Remarkably, an enhancement factor of 7.45 in photoresponsivity, the highest so far among all the reports adopting plasmonic metal NPs in perovskite photodetectors, has been achieved on the photodetectors with the Ag NPs-silica metafilms. Considering that the synthesis of the Ag NPs-silica metafilms can be readily scaled up to coat both rigid and flexible substrates, this result provides a low-cost metaplatform for a variety of high-performance optoelectronic device applications.
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Affiliation(s)
- Bo Liu
- Department of Physics and Astronomy , The University of Kansas , Lawrence , Kansas 66045 , United States
| | - Rithvik R Gutha
- Department of Physics and Astronomy , The University of Alabama in Huntsville , Huntsville , Alabama 35899 , United States
| | - Bhupal Kattel
- Department of Physics and Astronomy , The University of Kansas , Lawrence , Kansas 66045 , United States
| | - Mohammed Alamri
- Department of Physics and Astronomy , The University of Kansas , Lawrence , Kansas 66045 , United States
| | - Maogang Gong
- Department of Physics and Astronomy , The University of Kansas , Lawrence , Kansas 66045 , United States
| | - Seyed M Sadeghi
- Department of Physics and Astronomy , The University of Alabama in Huntsville , Huntsville , Alabama 35899 , United States
| | - Wai-Lun Chan
- Department of Physics and Astronomy , The University of Kansas , Lawrence , Kansas 66045 , United States
| | - Judy Z Wu
- Department of Physics and Astronomy , The University of Kansas , Lawrence , Kansas 66045 , United States
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104
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Alexander DTL, Forrer D, Rossi E, Lidorikis E, Agnoli S, Bernasconi GD, Butet J, Martin OJF, Amendola V. Electronic Structure-Dependent Surface Plasmon Resonance in Single Au-Fe Nanoalloys. NANO LETTERS 2019; 19:5754-5761. [PMID: 31348861 DOI: 10.1021/acs.nanolett.9b02396] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The relationship between composition and plasmonic properties in noble metal nanoalloys is still largely unexplored. Yet, nanoalloys of noble metals, such as gold, with transition elements, such as iron, have unique properties and a number of potential applications, ranging from nanomedicine to magneto-plasmonics and plasmon-enhanced catalysis. Here, we investigate the localized surface plasmon resonance at the level of the single Au-Fe nanoparticle by applying a strategy that combines experimental measurements using near field electron energy loss spectroscopy with theoretical studies via a full wave numerical analysis and density functional theory calculations of electronic structure. We show that, as the iron fraction increases, the plasmon resonance is blue-shifted and significantly damped, as a consequence of the changes in the electronic band structure of the alloy. This allows the identification of three relevant phenomena to be considered in the design and realization of any plasmonic nanoalloy, specifically: the appearance of new states around the Fermi level; the change in the free electron density of the metal; and the blue shift of interband transitions. Overall, this study provides new opportunities for the control of the optical response in Au-Fe and other plasmonic nanoalloys, which are useful for the realization of magneto-plasmonic devices for molecular sensing, thermo-plasmonics, bioimaging, photocatalysis, and the amplification of spectroscopic signals by local field enhancement.
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Affiliation(s)
- Duncan T L Alexander
- Electron Spectrometry and Microscopy Laboratory (LSME), Institute of Physics (IPHYS) , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland
- Interdisciplinary Centre for Electron Microscopy (CIME) , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland
| | - Daniel Forrer
- CNR-ICMATE , 35127 Padova , Italy
- Department of Chemical Sciences , University of Padova , 35131 Padova , Italy
| | - Enrico Rossi
- Department of Chemical Sciences , University of Padova , 35131 Padova , Italy
| | - Elefterios Lidorikis
- Department Materials Science and Engineering , University of Ioannina , 45110 Ioannina , Greece
| | - Stefano Agnoli
- Department of Chemical Sciences , University of Padova , 35131 Padova , Italy
| | - Gabriel D Bernasconi
- Nanophotonics and Metrology Laboratory (NAM) , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland
| | - Jérémy Butet
- Nanophotonics and Metrology Laboratory (NAM) , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland
| | - Olivier J F Martin
- Nanophotonics and Metrology Laboratory (NAM) , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland
| | - Vincenzo Amendola
- Department of Chemical Sciences , University of Padova , 35131 Padova , Italy
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105
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Ahmed HB, Emam HE. Synergistic catalysis of monometallic (Ag, Au, Pd) and bimetallic (Ag Au, Au Pd) versus trimetallic (Ag-Au-Pd) nanostructures effloresced via analogical techniques. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.110975] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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106
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Lin FC, See KM, Ouyang L, Huang YX, Chen YJ, Popp J, Huang JS. Designable Spectrometer-Free Index Sensing Using Plasmonic Doppler Gratings. Anal Chem 2019; 91:9382-9387. [PMID: 31329421 DOI: 10.1021/acs.analchem.9b02662] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Typical nanoparticle-based plasmonic index sensors detect the spectral shift of localized surface plasmon resonance (LSPR) upon the change of the environmental index. Therefore, they require broadband illumination and spectrometers. The sensitivity and flexibility of nanoparticle-based index sensors are usually limited because LSPR peaks are usually broad and the spectral position cannot be freely designed. Here, we present a fully designable index sensing platform using plasmonic Doppler gratings (PDGs), which provide broadband and azimuthal angle dependent grating periodicity. Different from LSPR sensors, PDG index sensors are based on the momentum matching between photons and surface plasmons via the lattice momentum of the grating. Therefore, the index change is translated into the variation of the in-plane azimuthal angle for photon-to-plasmon coupling, which manifests as directly observable dark bands in the reflection image. The PDG can be freely designed to optimally match the range of index variation for specific applications. In this work, we demonstrate PDG index sensors for large (n = 1.00-1.52) and small index variations (n = 1.3330-1.3650). The tiny and nonlinear index change of the water-ethanol mixture has been clearly observed and accurately quantified. Since the PDG is a dispersive device, it enables on-site and single-color index sensing without a spectrometer and provides a promising spectroscopic platform for on-chip analytical applications.
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Affiliation(s)
- Fan-Cheng Lin
- Department of Chemistry , National Tsing Hua University , Hsinchu 30013 , Taiwan
| | - Kel-Meng See
- Department of Chemistry , National Tsing Hua University , Hsinchu 30013 , Taiwan
| | - Lei Ouyang
- Leibniz Institute of Photonic Technology , Albert-Einstein Straße 9 , Jena D-07745 , Germany.,Institute of Physical Chemistry and Abbe Center of Photonics , Friedrich-Schiller-Universität Jena , Helmholtzweg 4 , Jena D-07743 , Germany
| | - You-Xin Huang
- Department of Chemistry , National Tsing Hua University , Hsinchu 30013 , Taiwan
| | - Yi-Ju Chen
- Leibniz Institute of Photonic Technology , Albert-Einstein Straße 9 , Jena D-07745 , Germany
| | - Jürgen Popp
- Leibniz Institute of Photonic Technology , Albert-Einstein Straße 9 , Jena D-07745 , Germany.,Institute of Physical Chemistry and Abbe Center of Photonics , Friedrich-Schiller-Universität Jena , Helmholtzweg 4 , Jena D-07743 , Germany
| | - Jer-Shing Huang
- Department of Chemistry , National Tsing Hua University , Hsinchu 30013 , Taiwan.,Leibniz Institute of Photonic Technology , Albert-Einstein Straße 9 , Jena D-07745 , Germany.,Research Center for Applied Sciences , Academia Sinica , 128 Sec. 2, Academia Road , Nankang District, Taipei 11529 , Taiwan.,Department of Electrophysics , National Chiao Tung University , Hsinchu 30010 , Taiwan
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107
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Yang D, Deng F, Liu D, He B, He B, Tang X, Zhang Q. The appliances and prospects of aurum nanomaterials in biodiagnostics, imaging, drug delivery and combination therapy. Asian J Pharm Sci 2019; 14:349-364. [PMID: 32104465 PMCID: PMC7032133 DOI: 10.1016/j.ajps.2018.06.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 05/07/2018] [Accepted: 06/05/2018] [Indexed: 12/19/2022] Open
Abstract
Aurum nanomaterials (ANM), combining the features of nanotechnology and metal elements, have demonstrated enormous potential and aroused great attention on biomedical applications over the past few decades. Particularly, their advantages, such as controllable particle size, flexible surface modification, higher drug loading, good stability and biocompatibility, especially unique optical properties, promote the development of ANM in biomedical field. In this review, we will discuss the advanced preparation process of ANM and summarize their recent applications as well as their prospects in diagnosis and therapy. Besides, multi-functional ANM-based theranostic nanosystems will be introduced in details, including radiotherapy (RT), photothermal therapy (PTT), photodynamic therapy (PDT), immunotherapy (IT), and so on.
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Affiliation(s)
- Dan Yang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Feiyang Deng
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Dechun Liu
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Bo He
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Bing He
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xing Tang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Qiang Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, China
- Beijing Key Laboratory of Molecular Pharmaceutics and New Drug Delivery Systems, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China
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108
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Albrecht W, Bladt E, Vanrompay H, Smith JD, Skrabalak SE, Bals S. Thermal Stability of Gold/Palladium Octopods Studied in Situ in 3D: Understanding Design Rules for Thermally Stable Metal Nanoparticles. ACS NANO 2019; 13:6522-6530. [PMID: 31091074 DOI: 10.1021/acsnano.9b00108] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Multifunctional metal nanoparticles (NPs) such as anisotropic multimetallic NPs are crucial for boosting nanomaterial-based applications. Advanced synthetic protocols exist to make a large variety of such nanostructures. However, a major limiting factor for the usability of them in real life applications is their stability. Here, we show that Au/Pd octopods, eight-branched nanocrystals with O h symmetry, with only a low amount of Pd exhibited a high thermal stability and maintained strong plasmon resonances up to 600 °C. Furthermore, we study the influence of the composition, morphology, and environment on the thermal stability and define key parameters for the design of thermally stable multifunctional NPs.
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Affiliation(s)
- Wiebke Albrecht
- EMAT , University of Antwerp , Groenenborgerlaan 171 , B-2020 Antwerp , Belgium
| | - Eva Bladt
- EMAT , University of Antwerp , Groenenborgerlaan 171 , B-2020 Antwerp , Belgium
| | - Hans Vanrompay
- EMAT , University of Antwerp , Groenenborgerlaan 171 , B-2020 Antwerp , Belgium
| | - Joshua D Smith
- Department of Chemistry , Indiana University , 800 East Kirkwood Avenue , Bloomington , Indiana 47405 , United States
| | - Sara E Skrabalak
- Department of Chemistry , Indiana University , 800 East Kirkwood Avenue , Bloomington , Indiana 47405 , United States
| | - Sara Bals
- EMAT , University of Antwerp , Groenenborgerlaan 171 , B-2020 Antwerp , Belgium
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109
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Fabrication of Various Plasmonic Pt Nanostructures via Indium Assisted Solid-State Dewetting: From Small Nanoparticles to Widely Connected Networks. NANOMATERIALS 2019; 9:nano9060831. [PMID: 31159339 PMCID: PMC6631651 DOI: 10.3390/nano9060831] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 05/24/2019] [Accepted: 05/27/2019] [Indexed: 11/23/2022]
Abstract
In this paper, the modified solid-state dewetting (MSSD) of well-defined and various uniform Pt nanostructures is demonstrated by the auxiliary diffusion enhancement. The MSSD utilizes the introduction of metallic indium (In) layers with high diffusivity in between sapphire and platinum (Pt) layer, through which the global diffusion and dewetting of metallic atoms can be significantly enhanced. Subsequently, the In atoms can be sublimated from the NP matrix, resulting in the formation of pure Pt NPs. By the systematic control of In and Pt bi-layer thickness, various areal density, size and configuration of Pt NPs are demonstrated. The In2 nm/Pt2 nm bilayers establish very small and highly dense NPs throughout the temperature range due to the early maturation of growth. Intermediate size of NPs is demonstrated with the In45 nm/Pt15 nm bilayers with the much improved interparticle spacings by annealing between 650 and 900 °C for 450 s. Finally, the In30 nm/Pt30 nm bilayers demonstrate the widely connected network-like nanostructures. In addition, the finite difference time domain (FDTD) simulation is employed to exploit the local electric field distributions at resonance wavelengths. The dewetting characteristics of In/Pt bilayers is systematically controlled by the modifications of layer thickness and annealing temperature and is systematically described based on the diffusion of atoms, Rayleigh instability and surface energy minimization mechanism. The optical properties demonstrate dynamic and widely tunable localized surface plasmon resonance (LSPR) responses depending upon the various surface morphologies of Pt nanostructures.
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110
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Conley KM, Nayyar N, Rossi TP, Kuisma M, Turkowski V, Puska MJ, Rahman TS. Plasmon Excitations in Mixed Metallic Nanoarrays. ACS NANO 2019; 13:5344-5355. [PMID: 30973699 DOI: 10.1021/acsnano.8b09826] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Features of the surface plasmon from macroscopic materials emerge in molecular systems, but differentiating collective excitations from single-particle excitations in molecular systems remains elusive. The rich interactions between single-particle electron-hole and collective electron excitations produce phenomena related to the chemical physics aspects within the atomic array. We study the plasmonic properties of atomic arrays of noble (Au, Ag, and Cu) and transition-metal (Pd, Pt) homonuclear chains using time-dependent density functional theory and their Kohn-Sham transition contributions. The response to the electromagnetic radiation is related to both the geometry-dependent confinement of sp-valence electrons and the energy position of d-electrons in the different atomic species and the hybridization between d and sp electrons. It is possible to tune the position of the plasmon resonance, split it into several peaks, and eventually achieve broadband absorption of radiation. Arrays of mixed noble and transition-metal chains may have strongly attenuated plasmonic behavior. The collective nature of the excitations is ascertained using their Kohn-Sham transition contributions. To manipulate the plasmonic response and achieve the desired properties for broad applications, it is vital to understand the origins of these phenomena in atomic chains and their arrays.
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Affiliation(s)
- Kevin M Conley
- Department of Applied Physics, COMP Centre of Excellence , Aalto University School of Science , P.O. Box 11100, FI-00076 Aalto , Finland
- Department of Applied Physics, QTF Centre of Excellence , Aalto University School of Science , P.O. Box 11100, FI-00076 Aalto , Finland
| | - Neha Nayyar
- Department of Physics , University of Central Florida , Orlando , Florida 32816 , United States
| | - Tuomas P Rossi
- Department of Applied Physics, COMP Centre of Excellence , Aalto University School of Science , P.O. Box 11100, FI-00076 Aalto , Finland
- Department of Physics , Chalmers University of Technology , SE-412 96 Gothenburg , Sweden
| | - Mikael Kuisma
- Department of Chemistry, Nanoscience Center , University of Jyväskylä , FI-40014 Jyväskylä , Finland
| | - Volodymyr Turkowski
- Department of Physics , University of Central Florida , Orlando , Florida 32816 , United States
| | - Martti J Puska
- Department of Applied Physics, COMP Centre of Excellence , Aalto University School of Science , P.O. Box 11100, FI-00076 Aalto , Finland
| | - Talat S Rahman
- Department of Applied Physics, COMP Centre of Excellence , Aalto University School of Science , P.O. Box 11100, FI-00076 Aalto , Finland
- Department of Physics , University of Central Florida , Orlando , Florida 32816 , United States
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111
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Application of the Monte Carlo Library Least-Squares (MCLLS) approach for chromium quantitative analysis in aqueous solution. Appl Radiat Isot 2019; 150:39-42. [PMID: 31121486 DOI: 10.1016/j.apradiso.2019.02.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 01/09/2019] [Accepted: 02/26/2019] [Indexed: 11/23/2022]
Abstract
In the present work, a new in-situ prompt gamma-ray neutron activation analysis (PGNAA) setup was developed for the quantitative measurement of chromium (Cr) in aqueous solutions which consists of a 4" × 4″ inch Bismuth Germanate detector and a 300 mCi 241Americium-beryllium neutron source. A series of standard samples were prepared by dissolving Cr compounds in deionized water of analytical pure grade and measured using the in situ PGNAA setup. Quantitative spectrum analysis was conducted using Monte Carlo Library Least-Squares approach (MCLLS). Simulates of elemental library spectra were in silico modeled using the CEARCPG code, which was developed by Prof. Robin Gardner research group in North Carolina State University. The fitted spectra presented were in excellent agreement with the total experimental spectrum, and the correlation coefficients were all nearly 1. After applying the MCLLS approach, the minimum detectable concentration of Cr was 301.5 mg/L, better than that obtained with other setups, and the relative deviation of the Cr quantitative analysis accuracy was less than 4.09%.
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112
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Abstract
The basic theoretical understanding of light interacting with nanostructured metals that has existed since the early 1900s has become more relevant in the last two decades, largely because of new approaches to structure metals down to the nanometer scale or smaller. Here, a broad overview of the concepts and applications of nanostructuring metals for light-based technologies is given. The theory of the response of metals to an applied oscillating field is given, including a discussion of nonlocal, nonlinear and quantum effects. Using this metal response, the guiding of electromagnetic (light) waves using metals is given, with a particular emphasis on the impact of nanostructured metals for tighter confinement and slower propagation. Similarly, the influence of metal nanostructures on light scattering by isolated metal structures, like nanoparticles and nanoantennas, is described, with basic results presented including plasmonic/circuit resonances, the single channel limit, directivity enhancement, the maximum power transfer theorem, limits on the magnetic response from kinetic inductance and the scaling of gap plasmons to the nanometer scale and smaller. A brief overview of nanofabrication approaches to creating metal nanostructures is given. Finally, existing and emerging light-based applications are presented, including those for sensing, spectroscopy (including local refractive index, Raman, IR absorption), detection (including Schottky detectors), switching (including terahertz photoconductive antennas), modulation, energy harvesting and photocatalysis, light emission (including lasers and tunneling based light emission), optical tweezing, nonlinear optics, subwavelength imaging and lithography and high density data storage.
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113
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Ikigaki K, Okada K, Tokudome Y, Toyao T, Falcaro P, Doonan CJ, Takahashi M. MOF‐on‐MOF: Oriented Growth of Multiple Layered Thin Films of Metal–Organic Frameworks. Angew Chem Int Ed Engl 2019; 58:6886-6890. [DOI: 10.1002/anie.201901707] [Citation(s) in RCA: 90] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Ken Ikigaki
- Department of Materials ScienceOsaka Prefecture University Sakai Osaka 599-8531 Japan
| | - Kenji Okada
- Department of Materials ScienceOsaka Prefecture University Sakai Osaka 599-8531 Japan
| | - Yasuaki Tokudome
- Department of Materials ScienceOsaka Prefecture University Sakai Osaka 599-8531 Japan
| | - Takashi Toyao
- Institute for CatalysisHokkaido University Sapporo Hokkaido 001-0021 Japan
| | - Paolo Falcaro
- Institute of Physical and Theoretical ChemistryGraz University of Technology Stremayrgasse 9/Z2 8010 Graz Austria
| | - Christian J. Doonan
- Department of ChemistryThe University of Adelaide Adelaide South Australia 5005 Australia
| | - Masahide Takahashi
- Department of Materials ScienceOsaka Prefecture University Sakai Osaka 599-8531 Japan
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114
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Koch R, Li G, Pandey S, Phillpot S, Wang H, Misture ST. Thermally induced transformations of Au@Cu2O core–shell nanoparticles into Au–Cu nanoparticles from temperature-programmed in situ powder X-ray diffraction. J Appl Crystallogr 2019. [DOI: 10.1107/s1600576719004497] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Temperature-programmed in situ X-ray diffraction with whole-powder-pattern modeling is used to investigate the reaction of Au@Cu2O core–shell nanoparticles to form nanocrystalline bimetallic Cu
x
Au1−x
alloys (x = 0, 0.25, 0.5, 0.75, 1.0) in a reducing atmosphere. The mechanisms of the reactions are key to informed design of tailored non-equilibrium nanostructures for catalytic and plasmonic materials. The Au@Cu2O reaction is initiated by reduction of the Cu2O cuprite shell to form nanocrystalline metallic Cu at about 413 K. Alloying begins immediately upon formation of metallic Cu at 413 K, with the nucleation of an Au-rich alloy phase which reaches the nominal Cu content of the overall system stoichiometry by 493 K. All bimetallic alloys form a transient ordered Cu3Au intermetallic compound at intermediate temperatures, with the onset of ordering and subsequent disordering varying by composition. No evidence for an ordered Au3Cu intermetallic is found for any composition. Significant crystal growth in the bimetallic phase is apparent at higher temperatures, with the onset temperature increasing with Cu concentration and initial Cu-shell thickness. The reduction of the cuprite phase is slowed by the presence of the core–shell interface, and crystal growth in the Cu shell is completely suppressed within the alloy systems.
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115
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Tang L, Wu W, He L, Yu K, Xu T, Zhang Q, Zhang L, Sun L. Novel Interface in CuAg Nanostructure Induced by Size Effect. J Phys Chem Lett 2019; 10:1973-1980. [PMID: 30947503 DOI: 10.1021/acs.jpclett.9b00484] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Bimetallic Janus nanostructures (JNs) have been revealed to be valuable materials because they have unique intermetallic interfaces that enable their potential use in a range of applications. However, with the increasing miniaturization of electronic devices, particle sizes influence the structure and orientation of these heterointerfaces, which plays a significant role in their application. Our in situ annealing experiments with high-resolution transmission electron microscopy have shown that for particle sizes in the sub-10 nm range, CuAg JNs preferentially show a Cu(100)/Ag(100) interface, differing from the larger CuAg JNs, where the Cu(111)/Ag(111) interface is favored. We discuss a feasible atomic motion mechanism to explain the effect of particle size on the formation of different heterointerfaces. Our results reveal the presence of a novel sub-10 nm heterostructure with a unique Cu(100)/Ag(100) interface and also provide crucial insights into understanding the role of particle size in interfacial evolution during thermal annealing of heterostructures.
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Affiliation(s)
- Luping Tang
- SEU-FEI Nano-Pico Center, Key Lab of MEMS of Ministry of Education , Southeast University , Nanjing 210096 , China
| | - Wei Wu
- Laboratory of Printable Functional Nanomaterials and Printed Electronics, School of Printing and Packaging , Wuhan University , Wuhan 430072 , China
| | - Longbing He
- SEU-FEI Nano-Pico Center, Key Lab of MEMS of Ministry of Education , Southeast University , Nanjing 210096 , China
- Southeast University-Monash University Joint Research Institute , Suzhou 215123 , China
| | - Kaihao Yu
- SEU-FEI Nano-Pico Center, Key Lab of MEMS of Ministry of Education , Southeast University , Nanjing 210096 , China
| | - Tao Xu
- SEU-FEI Nano-Pico Center, Key Lab of MEMS of Ministry of Education , Southeast University , Nanjing 210096 , China
- Southeast University-Monash University Joint Research Institute , Suzhou 215123 , China
| | - Qiubo Zhang
- SEU-FEI Nano-Pico Center, Key Lab of MEMS of Ministry of Education , Southeast University , Nanjing 210096 , China
- Materials Science Division , Lawrence Berkeley National Laboratory , Berkeley , California 94720 , United States
| | - Lei Zhang
- SEU-FEI Nano-Pico Center, Key Lab of MEMS of Ministry of Education , Southeast University , Nanjing 210096 , China
| | - Litao Sun
- SEU-FEI Nano-Pico Center, Key Lab of MEMS of Ministry of Education , Southeast University , Nanjing 210096 , China
- Southeast University-Monash University Joint Research Institute , Suzhou 215123 , China
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116
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Ikigaki K, Okada K, Tokudome Y, Toyao T, Falcaro P, Doonan CJ, Takahashi M. MOF‐on‐MOF: Oriented Growth of Multiple Layered Thin Films of Metal–Organic Frameworks. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901707] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ken Ikigaki
- Department of Materials ScienceOsaka Prefecture University Sakai Osaka 599-8531 Japan
| | - Kenji Okada
- Department of Materials ScienceOsaka Prefecture University Sakai Osaka 599-8531 Japan
| | - Yasuaki Tokudome
- Department of Materials ScienceOsaka Prefecture University Sakai Osaka 599-8531 Japan
| | - Takashi Toyao
- Institute for CatalysisHokkaido University Sapporo Hokkaido 001-0021 Japan
| | - Paolo Falcaro
- Institute of Physical and Theoretical ChemistryGraz University of Technology Stremayrgasse 9/Z2 8010 Graz Austria
| | - Christian J. Doonan
- Department of ChemistryThe University of Adelaide Adelaide South Australia 5005 Australia
| | - Masahide Takahashi
- Department of Materials ScienceOsaka Prefecture University Sakai Osaka 599-8531 Japan
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117
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Subbiah KS, Beedu SR. Biogenic synthesis of biopolymer-based Ag-Au bimetallic nanoparticle constructs and their anti-proliferative assessment. IET Nanobiotechnol 2019; 12:1047-1055. [PMID: 30964012 DOI: 10.1049/iet-nbt.2018.5135] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
This study reports an eco-friendly-based method for the preparation of biopolymer Ag-Au nanoparticles (NPs) by using gum kondagogu (GK; Cochlospermum gossypium), as both reducing and protecting agent. The formation of GK-(Ag-Au) NPs was confirmed by UV-absorption, fourier transformed infrared (FTIR), atomic force microscopy (AFM), scanning electron microscope (SEM) and transmission electron microscope (TEM). The GK-(Ag-Au) NPs were of 1-12 nm in size. The anti-proliferative activity of nanoparticle constructs was assessed by MTT assay, confocal microscopy, flow cytometry and quantitative real-time polymerase chain reaction (PCR) techniques. Expression studies revealed up-regulation of p53, caspase-3, caspase-9, peroxisome proliferator-activated receptors (PPAR) PPARa and PPARb, genes and down-regulation of Bcl-2 and Bcl-x(K) genes, in B16F10 cells treated with GK-(Ag-Au) NPs confirming the anti-proliferative properties of the nanoparticles.
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Affiliation(s)
- Kalaignana Selvi Subbiah
- Department of Biochemistry, University College of Science, Osmania University, Hyderabad 500 007, Telangana, India
| | - Sashidhar Rao Beedu
- Department of Biochemistry, University College of Science, Osmania University, Hyderabad 500 007, Telangana, India.
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118
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Heuer-Jungemann A, Feliu N, Bakaimi I, Hamaly M, Alkilany A, Chakraborty I, Masood A, Casula MF, Kostopoulou A, Oh E, Susumu K, Stewart MH, Medintz IL, Stratakis E, Parak WJ, Kanaras AG. The Role of Ligands in the Chemical Synthesis and Applications of Inorganic Nanoparticles. Chem Rev 2019; 119:4819-4880. [PMID: 30920815 DOI: 10.1021/acs.chemrev.8b00733] [Citation(s) in RCA: 456] [Impact Index Per Article: 91.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The design of nanoparticles is critical for their efficient use in many applications ranging from biomedicine to sensing and energy. While shape and size are responsible for the properties of the inorganic nanoparticle core, the choice of ligands is of utmost importance for the colloidal stability and function of the nanoparticles. Moreover, the selection of ligands employed in nanoparticle synthesis can determine their final size and shape. Ligands added after nanoparticle synthesis infer both new properties as well as provide enhanced colloidal stability. In this article, we provide a comprehensive review on the role of the ligands with respect to the nanoparticle morphology, stability, and function. We analyze the interaction of nanoparticle surface and ligands with different chemical groups, the types of bonding, the final dispersibility of ligand-coated nanoparticles in complex media, their reactivity, and their performance in biomedicine, photodetectors, photovoltaic devices, light-emitting devices, sensors, memory devices, thermoelectric applications, and catalysis.
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Affiliation(s)
- Amelie Heuer-Jungemann
- School of Physics and Astronomy, Faculty of Engineering and Physical Sciences , University of Southampton , Southampton SO17 1BJ , U.K
| | - Neus Feliu
- Department of Laboratory Medicine (LABMED) , Karolinska Institutet , Stockholm 171 77 , Sweden.,Fachbereich Physik, CHyN , Universität Hamburg , 22607 Hamburg , Germany
| | - Ioanna Bakaimi
- School of Chemistry, Faculty of Engineering and Physical Sciences , University of Southampton , Southampton SO171BJ , U.K
| | - Majd Hamaly
- King Hussein Cancer Center , P. O. Box 1269, Al-Jubeiha, Amman 11941 , Jordan
| | - Alaaldin Alkilany
- Department of Pharmaceutics & Pharmaceutical Technology, School of Pharmacy , The University of Jordan , Amman 11942 , Jordan.,Fachbereich Physik, CHyN , Universität Hamburg , 22607 Hamburg , Germany
| | | | - Atif Masood
- Fachbereich Physik , Philipps Universität Marburg , 30357 Marburg , Germany
| | - Maria F Casula
- INSTM and Department of Chemical and Geological Sciences , University of Cagliari , 09042 Monserrato , Cagliari , Italy.,Department of Mechanical, Chemical and Materials Engineering , University of Cagliari , Via Marengo 2 , 09123 Cagliari , Italy
| | - Athanasia Kostopoulou
- Institute of Electronic Structure and Laser , Foundation for Research and Technology-Hellas , Heraklion , 71110 Crete , Greece
| | - Eunkeu Oh
- KeyW Corporation , Hanover , Maryland 21076 , United States.,Optical Sciences Division, Code 5600 , U.S. Naval Research Laboratory , Washington , D.C. 20375 , United States
| | - Kimihiro Susumu
- KeyW Corporation , Hanover , Maryland 21076 , United States.,Optical Sciences Division, Code 5600 , U.S. Naval Research Laboratory , Washington , D.C. 20375 , United States
| | - Michael H Stewart
- Optical Sciences Division, Code 5600 , U.S. Naval Research Laboratory , Washington , D.C. 20375 , United States
| | - Igor L Medintz
- Center for Bio/Molecular Science and Engineering, Code 6900 , U.S. Naval Research Laboratory , Washington , D.C. 20375 , United States
| | - Emmanuel Stratakis
- Institute of Electronic Structure and Laser , Foundation for Research and Technology-Hellas , Heraklion , 71110 Crete , Greece
| | - Wolfgang J Parak
- Fachbereich Physik, CHyN , Universität Hamburg , 22607 Hamburg , Germany
| | - Antonios G Kanaras
- School of Physics and Astronomy, Faculty of Engineering and Physical Sciences , University of Southampton , Southampton SO17 1BJ , U.K
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119
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Li X, Yu J, Jaroniec M, Chen X. Cocatalysts for Selective Photoreduction of CO2 into Solar Fuels. Chem Rev 2019; 119:3962-4179. [DOI: 10.1021/acs.chemrev.8b00400] [Citation(s) in RCA: 1094] [Impact Index Per Article: 218.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xin Li
- College of Forestry and Landscape Architecture, Key Laboratory of Energy Plants Resource and Utilization, Ministry of Agriculture, South China Agricultural University, Guangzhou, 510642, P. R. China
| | - Jiaguo Yu
- State Key Laboratory of Advanced Technology for Material Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, P. R. China
| | - Mietek Jaroniec
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - Xiaobo Chen
- Department of Chemistry, University of Missouri—Kansas City, Kansas City, Missouri 64110, United States
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120
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Fabrication of micro-patterned substrates for plasmonic sensing by piezo-dispensing of colloidal nanoparticles. Anal Bioanal Chem 2019; 411:1537-1547. [PMID: 30707266 DOI: 10.1007/s00216-019-01587-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 12/03/2018] [Accepted: 01/08/2019] [Indexed: 10/27/2022]
Abstract
In this work we describe a very fast and flexible method for fabrication of plasmon-supporting substrates with micro-patterning capability, which is optimized for plasmonic sensing. We combined a wet chemistry approach to synthesize metallic nanoparticles with a piezo-dispensing system enabling deposition of nanoparticles on the substrates with micrometer precision. In this way, an arbitrary pattern consisting of 200 μm small spots containing plasmonic nanostructures can be produced. Patterns with various nanoparticles exhibiting different plasmonic properties were combined, and the surface density of the particles could be easily varied via their solution concentrations. We showed that under controlled conditions the dispensing process caused no aggregation of the particles and it enabled full transfer of the colloidal solutions onto the substrate. This is an important condition, which enables these substrates to be used for reliable plasmonic sensing based on monitoring the spectral shift of the nanoparticles. We demonstrated the functionality of such substrates by detection of small protein adsorption on the spots based on plasmon label-free sensing method.
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121
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A heterostructure of layered double hydroxide wrapped in few-layer carbon with iridium doping for efficient oxygen evolution. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.11.094] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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122
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Larson S, Yang Z, Zhao Y. Improving LSPR sensing performance using multilayered composition graded Ag-Cu nanotriangle arrays. Chem Commun (Camb) 2019; 55:1342-1344. [PMID: 30640326 DOI: 10.1039/c8cc08813f] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Patterned nanotriangle arrays with composition graded and multilayered Ag-Cu were fabricated by a co-deposition and nanosphere lithography process. With the increase of the number of layers or constructing a continuum graded layer, the index sensitivity of the resulting nanotriangles kept on increasing, indicating that the graded boundaries can improve plasmon resonance sensing.
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Affiliation(s)
- Steven Larson
- Department of Physics and Astronomy, University of Georgia, Athens, GA 30602, USA.
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123
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Chen F, Shen K, Chen J, Yang X, Cui J, Li Y. General Immobilization of Ultrafine Alloyed Nanoparticles within Metal-Organic Frameworks with High Loadings for Advanced Synergetic Catalysis. ACS CENTRAL SCIENCE 2019; 5:176-185. [PMID: 30693336 PMCID: PMC6346383 DOI: 10.1021/acscentsci.8b00805] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Indexed: 05/22/2023]
Abstract
The development of a general synthesis approach for creating fine alloyed nanoparticles (NPs) in the pores of metal-organic frameworks (MOFs) shows great promise for advanced synergetic catalysis but has not been realized so far. Herein, for the first time we proposed a facile and general strategy to immobilize ultrafine alloyed NPs within the pores of an MOF by the galvanic replacement of transition-metal NPs (e.g., Cu, Co, and Ni) with noble-metal ions (e.g., Pd, Ru, and Pt) under high-intensity ultrasound irradiation. Nine types of bimetallic alloyed NPs of base and noble metals were successfully prepared and immobilized in the pores of MIL-101 as a model host, which showed highly dispersed and well-alloyed properties with average particle sizes ranging from 1.1 to 2.2 nm and high loadings of up to 10.4 wt %. Benefiting from the ultrafine particle size and high dispersity of Cu-Pd NPs and especially the positive synergy between Cu and Pd metals, the optimized Cu-Pd@MIL-101 exhibited an extremely high activity for the homocoupling reaction of phenylacetylene under unprecedented base- and additive-free conditions and room temperature, affording at least 19 times higher yield (98%) of 1,4-diphenylbuta-1,3-diyne than its monometallic counterparts. This general strategy for preparing various MOF-immobilized alloyed NPs potentially paves the way for the development of highly active metal catalysts for a variety of reactions.
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Affiliation(s)
- Fengfeng Chen
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry
and Chemical Engineering and Analytical and Testing Centre, South China University of Technology, Guangzhou 510640, China
| | - Kui Shen
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry
and Chemical Engineering and Analytical and Testing Centre, South China University of Technology, Guangzhou 510640, China
| | - Junying Chen
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry
and Chemical Engineering and Analytical and Testing Centre, South China University of Technology, Guangzhou 510640, China
| | - Xianfeng Yang
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry
and Chemical Engineering and Analytical and Testing Centre, South China University of Technology, Guangzhou 510640, China
| | - Jie Cui
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry
and Chemical Engineering and Analytical and Testing Centre, South China University of Technology, Guangzhou 510640, China
| | - Yingwei Li
- State Key Laboratory of Pulp and Paper Engineering, School of Chemistry
and Chemical Engineering and Analytical and Testing Centre, South China University of Technology, Guangzhou 510640, China
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124
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Shams SF, Ghazanfari MR, Schmitz-Antoniak C. Magnetic-Plasmonic Heterodimer Nanoparticles: Designing Contemporarily Features for Emerging Biomedical Diagnosis and Treatments. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E97. [PMID: 30642128 PMCID: PMC6358957 DOI: 10.3390/nano9010097] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Revised: 01/04/2019] [Accepted: 01/08/2019] [Indexed: 12/28/2022]
Abstract
Magnetic-plasmonic heterodimer nanostructures synergistically present excellent magnetic and plasmonic characteristics in a unique platform as a multipurpose medium for recently invented biomedical applications, such as magnetic hyperthermia, photothermal therapy, drug delivery, bioimaging, and biosensing. In this review, we briefly outline the less-known aspects of heterodimers, including electronic composition, interfacial morphology, critical properties, and present concrete examples of recent progress in synthesis and applications. With a focus on emerging features and performance of heterodimers in biomedical applications, this review provides a comprehensive perspective of novel achievements and suggests a fruitful framework for future research.
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Affiliation(s)
- S Fatemeh Shams
- Peter-Grünberg-Institut (PGI-6), Forschungszentrum Jülich, 52425 Jülich, Germany.
| | - Mohammad Reza Ghazanfari
- Department of Materials Science and Engineering, Ferdowsi University of Mashhad, Mashhad 9177948974, Iran.
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125
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Chen L, Li R, Yang P. Plasmonic nanoprobes based on the shape transition of Au/Ag core–shell nanorods to dumbbells for sensitive Hg-ion detection. RSC Adv 2019; 9:17783-17790. [PMID: 35520588 PMCID: PMC9064665 DOI: 10.1039/c9ra02168j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 05/20/2019] [Indexed: 11/21/2022] Open
Abstract
Sensitive plasmonic nanoprobes for the sensitive detection of mercury ions based on a “rod-like to dumbbell or not” morphology transition of the Au/Ag core–shell hybrid nanorods.
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Affiliation(s)
- Ling Chen
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Rui Li
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
| | - Ping Yang
- School of Materials Science and Engineering
- University of Jinan
- Jinan 250022
- China
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126
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Ogundare OD, Akinribide OJ, Adetunji AR, Adeoye MO, Olubambi PA. Crystallite size determination of thermally deposited Gold Nanoparticles. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.promfg.2019.02.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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127
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Abstract
Density functional theory calculations are used to investigate CO adsorption, dissociation and SnOX formation on Pt3Sn.
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Affiliation(s)
- Matthias Vandichel
- Department of Physics and Competence Centre for Catalysis
- Chalmers University of Technology
- 412 96 Göteborg
- Sweden
| | - Henrik Grönbeck
- Department of Physics and Competence Centre for Catalysis
- Chalmers University of Technology
- 412 96 Göteborg
- Sweden
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128
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Kang X, Zhu M. Tailoring the photoluminescence of atomically precise nanoclusters. Chem Soc Rev 2019; 48:2422-2457. [PMID: 30838373 DOI: 10.1039/c8cs00800k] [Citation(s) in RCA: 506] [Impact Index Per Article: 101.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Due to their atomically precise structures and intriguing chemical/physical properties, metal nanoclusters are an emerging class of modular nanomaterials. Photo-luminescence (PL) is one of their most fascinating properties, due to the plethora of promising PL-based applications, such as chemical sensing, bio-imaging, cell labeling, phototherapy, drug delivery, and so on. However, the PL of most current nanoclusters is still unsatisfactory-the PL quantum yield (QY) is relatively low (generally lower than 20%), the emission lifetimes are generally in the nanosecond range, and the emitted color is always red (emission wavelengths of above 630 nm). To address these shortcomings, several strategies have been adopted, and are reviewed herein: capped-ligand engineering, metallic kernel alloying, aggregation-induced emission, self-assembly of nanocluster building blocks into cluster-based networks, and adjustments on external environment factors. We further review promising applications of these fluorescent nanoclusters, with particular focus on their potential to impact the fields of chemical sensing, bio-imaging, and bio-labeling. Finally, scope for improvements and future perspectives of these novel nanomaterials are highlighted as well. Our intended audience is the broader scientific community interested in the fluorescence of metal nanoclusters, and our review hopefully opens up new horizons for these scientists to manipulate PL properties of nanoclusters. This review is based on publications available up to December 2018.
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Affiliation(s)
- Xi Kang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui 230601, China.
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129
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Wang S, Qi J, Yang Z, Yang Y, Wei J. A one-pot general strategy towards the synthesis of core–satellite suprastructures. CrystEngComm 2019. [DOI: 10.1039/c8ce01815d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A one-pot strategy developed towards the synthesis of core–satellite structures based on the fractional precipitation rule.
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Affiliation(s)
- Shuping Wang
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
| | - Jialin Qi
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
| | - Zhijie Yang
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
| | - Yanzhao Yang
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
| | - Jingjing Wei
- Key Laboratory for Special Functional Aggregate Materials of Education Ministry
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan 250100
- P. R. China
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130
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Han C, Li SH, Tang ZR, Xu YJ. Tunable plasmonic core-shell heterostructure design for broadband light driven catalysis. Chem Sci 2018; 9:8914-8922. [PMID: 30746116 PMCID: PMC6335626 DOI: 10.1039/c8sc04479a] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 11/15/2018] [Indexed: 12/20/2022] Open
Abstract
Considerable effort has been devoted to manipulating the optical absorption of metal nanostructures for diverse applications. However, it still remains a challenge to develop a general and flexible method to promote broadband absorption of metal nanostructures without changing their size and shape. Here, we report a new strategy of hybridizing two conceptually different optical models to realize broadband absorption enhancement of metal nanoparticles (NPs), which is enabled by constructing a core-shell heterostructure, consisting of a spherical dielectric core covered by a metal NPs interlayer and tunable semiconductor shell. This approach integrates the interfacial photon management, photoexcitation of metal NPs and injection of hot charge carriers into the semiconductor shell, and results in distinctly enhanced hot charge carrier generation and transfer, thereby boosting the broad-spectrum light driven catalysis. The structure-plasmon-catalysis interplay of the heterostructure is comprehensively studied and optimized. This proof-of-concept proves to be generally feasible by varying the type of both metal NPs and support medium, opening a new avenue to control the optoelectronic properties of materials.
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Affiliation(s)
- Chuang Han
- State Key Laboratory of Photocatalysis on Energy and Environment , College of Chemistry , Fuzhou University , Fuzhou , 350116 , China .
- College of Chemistry , New Campus , Fuzhou University , Fuzhou , 350116 , China
| | - Shao-Hai Li
- State Key Laboratory of Photocatalysis on Energy and Environment , College of Chemistry , Fuzhou University , Fuzhou , 350116 , China .
- College of Chemistry , New Campus , Fuzhou University , Fuzhou , 350116 , China
| | - Zi-Rong Tang
- College of Chemistry , New Campus , Fuzhou University , Fuzhou , 350116 , China
| | - Yi-Jun Xu
- State Key Laboratory of Photocatalysis on Energy and Environment , College of Chemistry , Fuzhou University , Fuzhou , 350116 , China .
- College of Chemistry , New Campus , Fuzhou University , Fuzhou , 350116 , China
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131
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Mattox TM, Urban JJ. Tuning the Surface Plasmon Resonance of Lanthanum Hexaboride to Absorb Solar Heat: A Review. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E2473. [PMID: 30563148 PMCID: PMC6316924 DOI: 10.3390/ma11122473] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 11/28/2018] [Accepted: 11/30/2018] [Indexed: 11/16/2022]
Abstract
While traditional noble metal (Ag, Au, and Cu) nanoparticles are well known for their plasmonic properties, they typically only absorb in the ultraviolet and visible regions. The study of metal hexaborides, lanthanum hexaboride (LaB₆) in particular, expands the available absorbance range of these metals well into the near-infrared. As a result, LaB₆ has become a material of interest for its energy and heat absorption properties, most notably to those trying to absorb solar heat. Given the growing popularity of LaB₆, this review focuses on the advances made in the past decade with respect to controlling the plasmonic properties of LaB₆ nanoparticles. This review discusses the fundamental structure of LaB₆ and explains how decreasing the nanoparticle size changes the atomic vibrations on the surface and thus the plasmonic absorbance band. We explain how doping LaB₆ nanoparticles with lanthanide metals (Y, Sm, and Eu) red-shifts the absorbance band and describe research focusing on the correlation between size dependent and morphological effects on the surface plasmon resonance. This work also describes successes that have been made in dispersing LaB₆ nanoparticles for various optical applications, highlighting the most difficult challenges encountered in this field of study.
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Affiliation(s)
- Tracy M Mattox
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
| | - Jeffrey J Urban
- Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
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132
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Wang S, Li Q, Kang X, Zhu M. Customizing the Structure, Composition, and Properties of Alloy Nanoclusters by Metal Exchange. Acc Chem Res 2018; 51:2784-2792. [PMID: 30387990 DOI: 10.1021/acs.accounts.8b00327] [Citation(s) in RCA: 122] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The properties of metal materials can be greatly enriched by including various elements to generate alloys. The galvanic replacement represents a classical method for the preparation of both bulk- and nanoalloy materials. The difference of the electrochemical potential between the two metals acts as the driving force for the galvanic replacement reaction. However, this classical rule partially fails at the ultrasmall size scale, for that novel chemistry emerges by the decrease of the size of materials down to less than 3 nm due to the strong quantum effect. In this Account, we discuss an emerging topic of nanochemistry, the metal exchange in atomically precise ultrasmall (<3 nm) metal nanoparticles (or nanoclusters). The metal exchange method uses different types of metal sources (e.g., AuBrPPh3 or AgSR complexes) to react with templating metal nanoclusters (e.g., Au25(SR)18-), and finally alloy nanoclusters are produced. We demonstrate that the metal exchange reaction between metal nanoclusters and metal complexes does not follow the classical metal activity sequence (i.e., Fe > Cd > Co > Ni > Pb > Cu > Hg > Ag > Pd > Pt > Au) and such metal exchange reactions in the nanocluster range is, to a large extent, related with the electron shell closing and the structural stability of nanoclusters. In the subsequent sections, we present effective control over the number, position, and distribution of the dopants. The shape and structure of the final alloy products can be tailored by recently developed metal exchange methods. More importantly, modulation and enhancement of the properties of NCs through metal exchange are realized. For example, the largely increased quantum yield and the significantly improved catalytic activity. In addition, we shall also discuss the real-time characterization of the metal exchange reaction by the combination of UV-vis absorption spectroscopy, high resolution electrospray ionization mass spectrometry (ESI-MS), matrix assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF-MS), and single crystal X-ray diffraction (SC-XRD). By controlling the charge of the templating metal nanoclusters and the different types of metal complexes, the driving force of metal exchange has been studied, which is considered to be the thermodynamics rather than the electrochemical potential. In summary, the metal exchange reactions in the ultrasmall nanocluster range are totally different compared with the case of larger-sized metal nanoparticles. Depending on this novel method, atomically precise alloy nanoclusters can be prepared by reacting the nanocluster composed of inert metal (such as Au) with complexes of high-activity metals (e.g., Cd/Hg/Cu/Ag). We anticipate that future research on the metal exchange will contribute to the fundamental understanding of reaction behavior of metal atoms in ultrasmall nanoclusters and to the design of alloy nanoclusters with enhanced properties.
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Affiliation(s)
- Shuxin Wang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China
| | - Qi Li
- Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, United States
| | - Xi Kang
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China
| | - Manzhou Zhu
- Department of Chemistry and Centre for Atomic Engineering of Advanced Materials, Anhui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Anhui University, Hefei, Anhui 230601, China
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133
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Guo J, Lu F, Zhang Y, Ma Q, Yang S, Liu G, Cai W. Controllable corrosion-assisted fabrication of Au-Ag alloyed hollow nanocrystals for highly efficient and environmentally-stable SERS substrates. NANOTECHNOLOGY 2018; 29:455604. [PMID: 30168451 DOI: 10.1088/1361-6528/aade27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Surface enhanced Raman scattering (SERS) substrates with both high activity and long term chemical-stability have been expected in the practical application of the SERS-based detection. In this paper, Au-Ag bimetal nanocrystals are fabricated based on the template-etching reaction in the Ag nanocubes-contained cetylpyridinium chloride (CPC) aqueous solution via adding the HAuCl4 solution. The obtained nanocrystals are Au-Ag alloyed and hollow in structure. Further, it has been found that with the increasing Au/Ag molar ratio, the shape of the alloyed nanocrystals evolve from the truncated nanocubes to the hollow boxes and then nanocages, showing the ever red-shifting surface plasmon resonance from the visible to the infrared region. The formation of the alloyed hollow nanocrystals is attributed to the preferential dissolution of the Ag nanocubes induced by CPC selective adsorption and the three to one galvanic replacement reaction between Ag and Au atoms. Importantly, such Au-Ag alloyed hollow nanocrystals, especially the ones with a low Au/Ag atomic ratio, show both high SERS activity and long term environmental stability compared with pure Ag or Au nanocrystals, and are the ideal candidate for the SERS substrate with practical application value. This work not only demonstrates the nanofabrication route to the alloyed hollow nanocrystals with controllable shapes and tunable optical properties in a large region, but also presents highly active and chemically-stable SERS substrates for the practical SERS-based detection.
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Affiliation(s)
- Jing Guo
- Key Lab of Materials Physics, Anhui Key Lab of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China. University of Science and Technology of China, Hefei 230026, People's Republic of China
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134
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Park TH, Jang DJ. Laser-induced fabrication of porous gold nanoshells. NANOSCALE 2018; 10:20108-20112. [PMID: 30371709 DOI: 10.1039/c8nr04617d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Pulse-laser irradiation is a promising approach to fabricate gold nanostructures with unique morphologies. Hollow and porous gold nanoshells with high surface-enhanced Raman scattering efficiency have been produced via irradiating SiO2@Au@SiO2 nanoparticles with nanosecond laser pulses; the synthetic strategy mainly relies on the laser-induced surface melting of gold nanoparticles.
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Affiliation(s)
- Tae-Hyeon Park
- Department of Chemistry, Seoul National University, Seoul 08826, Korea.
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135
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Kang H, Buchman JT, Rodriguez RS, Ring HL, He J, Bantz KC, Haynes CL. Stabilization of Silver and Gold Nanoparticles: Preservation and Improvement of Plasmonic Functionalities. Chem Rev 2018; 119:664-699. [DOI: 10.1021/acs.chemrev.8b00341] [Citation(s) in RCA: 258] [Impact Index Per Article: 43.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Hyunho Kang
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Joseph T. Buchman
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Rebeca S. Rodriguez
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Hattie L. Ring
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Jiayi He
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Kyle C. Bantz
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
| | - Christy L. Haynes
- Department of Chemistry, University of Minnesota, 207 Pleasant Street Southeast, Minneapolis, Minnesota 55455, United States
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136
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Kim S, Kim JM, Park JE, Nam JM. Nonnoble-Metal-Based Plasmonic Nanomaterials: Recent Advances and Future Perspectives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1704528. [PMID: 29572964 DOI: 10.1002/adma.201704528] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 11/17/2017] [Indexed: 06/08/2023]
Abstract
The application scope of plasmonic nanostructures is rapidly expanding to keep pace with the ongoing development of various scientific findings and emerging technologies. However, most plasmonic nanostructures heavily depend on rare, expensive, and extensively studied noble metals such as Au and Ag, with the limited choice of elements hindering their broad and practical applications in a wide spectral range. Therefore, abundant and inexpensive nonnoble metals have attracted attention as new plasmonic nanomaterial components, allowing these nonnoble-metal-based materials to be used in areas such as photocatalysis, sensing, nanoantennas, metamaterials, and magnetoplasmonics with new compositions, structures, and properties. Furthermore, the use of nonnoble metal hybrids results in newly emerging or synergistic properties not observed from single-metal component systems. Here, the synthetic strategies and recent advances in nonnoble-metal-based plasmonic nanostructures comprising Cu, Al, Mg, In, Ga, Pb, Ni, Co, Fe, and related hybrids are highlighted, and a discussion and perspectives in their synthesis, properties, applications, and challenges are presented.
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Affiliation(s)
- Sungi Kim
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea
| | - Jae-Myoung Kim
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea
| | - Jeong-Eun Park
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea
| | - Jwa-Min Nam
- Department of Chemistry, Seoul National University, Seoul, 08826, South Korea
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137
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138
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Gold nanoparticles-platinum nanodots-graphene interfaced spherical colloidal nanodendrites: Synthesis and studies for plasmonic multiple photo-system modality. J IND ENG CHEM 2018. [DOI: 10.1016/j.jiec.2018.04.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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139
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Montes-García V, Rodal-Cedeira S, Cordero-Ferradás MJ, Gómez B, García-Río L, Pastoriza-Santos I, Pérez-Juste J. Pillar[5]arene-stabilized Plasmonic Nanoparticles as Selective SERS Sensors. Isr J Chem 2018. [DOI: 10.1002/ijch.201800041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Verónica Montes-García
- Departamento de Química Física y Centro Singular de Investigaciones biomédicas (CINBIO); Universidade de Vigo; 36310 Vigo Spain
| | - Sergio Rodal-Cedeira
- Departamento de Química Física y Centro Singular de Investigaciones biomédicas (CINBIO); Universidade de Vigo; 36310 Vigo Spain
| | - María José Cordero-Ferradás
- Departamento de Química Física y Centro Singular de Investigaciones biomédicas (CINBIO); Universidade de Vigo; 36310 Vigo Spain
| | - Borja Gómez
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Física; Universidade de Santiago; 15782 Santiago Spain
| | - Luis García-Río
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Física; Universidade de Santiago; 15782 Santiago Spain
| | - Isabel Pastoriza-Santos
- Departamento de Química Física y Centro Singular de Investigaciones biomédicas (CINBIO); Universidade de Vigo; 36310 Vigo Spain
| | - Jorge Pérez-Juste
- Departamento de Química Física y Centro Singular de Investigaciones biomédicas (CINBIO); Universidade de Vigo; 36310 Vigo Spain
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140
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Tao H, Galati E, Kumacheva E. Temperature-Responsive Self-Assembly of Nanoparticles Grafted with UCST Polymer Ligands. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01058] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Huachen Tao
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
| | - Elizabeth Galati
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
| | - Eugenia Kumacheva
- Department of Chemistry, University of Toronto, 80 Saint George Street, Toronto, Ontario M5S 3H6, Canada
- Institute of Biomaterials and Biomedical Engineering, University of Toronto, Toronto, Ontario M5S 3G9, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario M5S 3E5, Canada
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141
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Michelakaki I, Boukos N, Dragatogiannis DA, Stathopoulos S, Charitidis CA, Tsoukalas D. Synthesis of hafnium nanoparticles and hafnium nanoparticle films by gas condensation and energetic deposition. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2018; 9:1868-1880. [PMID: 30013881 PMCID: PMC6036986 DOI: 10.3762/bjnano.9.179] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Accepted: 05/22/2018] [Indexed: 05/31/2023]
Abstract
In this work we study the fabrication and characterization of hafnium nanoparticles and hafnium nanoparticle thin films. Hafnium nanoparticles were grown in vacuum by magnetron-sputtering inert-gas condensation. The as deposited nanoparticles have a hexagonal close-packed crystal structure, they possess truncated hexagonal biprism shape and are prone to surface oxidation when exposed to ambient air forming core-shell Hf/HfO2 structures. Hafnium nanoparticle thin films were formed through energetic nanoparticle deposition. This technique allows for the control of the energy of charged nanoparticles during vacuum deposition. The structural and nanomechanical properties of the nanoparticle thin films were investigated as a function of the kinetic energy of the nanoparticles. The results reveal that by proper adjustment of the nanoparticle energy, hexagonal close-packed porous nanoparticle thin films with good mechanical properties can be formed, without any additional treatment. It is shown that these films can be patterned on the substrate in sub-micrometer dimensions using conventional lithography while their porosity can be well controlled. The fabrication and experimental characterization of hafnium nanoparticles is reported for the first time in the literature.
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Affiliation(s)
- Irini Michelakaki
- Department of Physics, National Technical University of Athens, Heroon Politechniou 9, Zographou - Athens, 15780, Greece
| | - Nikos Boukos
- Institute of Nanosciences and Nanotechnology, National Centre for Scientific Research Demokritos, Patriarchou Grigoriou E’ & Neapoleos Str., Aghia Paraskevi - Athens, 15310, Greece
| | - Dimitrios A Dragatogiannis
- School of Chemical Engineering, National Technical University of Athens, Heroon Politechniou 9, Zographou - Athens, 15780, Greece
| | - Spyros Stathopoulos
- Department of Physics, National Technical University of Athens, Heroon Politechniou 9, Zographou - Athens, 15780, Greece
| | - Costas A Charitidis
- School of Chemical Engineering, National Technical University of Athens, Heroon Politechniou 9, Zographou - Athens, 15780, Greece
| | - Dimitris Tsoukalas
- Department of Physics, National Technical University of Athens, Heroon Politechniou 9, Zographou - Athens, 15780, Greece
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142
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Gilroy KD, Yang X, Xie S, Zhao M, Qin D, Xia Y. Shape-Controlled Synthesis of Colloidal Metal Nanocrystals by Replicating the Surface Atomic Structure on the Seed. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1706312. [PMID: 29656471 DOI: 10.1002/adma.201706312] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 12/05/2017] [Indexed: 05/25/2023]
Abstract
Controlling the surface structure of metal nanocrystals while maximizing the utilization efficiency of the atoms is a subject of great importance. An emerging strategy that has captured the attention of many research groups involves the conformal deposition of one metal as an ultrathin shell (typically 1-6 atomic layers) onto the surface of a seed made of another metal and covered by a set of well-defined facets. This approach forces the deposited metal to faithfully replicate the surface atomic structure of the seed while at the same time serving to minimize the usage of the deposited metal. Here, the recent progress in this area is discussed and analyzed by focusing on the synthetic and mechanistic requisites necessary for achieving surface atomic replication of precious metals. Other related methods are discussed, including the one-pot synthesis, electrochemical deposition, and skin-layer formation through thermal annealing. To close, some of the synergies that arise when the thickness of the deposited shell is decreased controllably down to a few atomic layers are highlighted, along with how the control of thickness can be used to uncover the optimal physicochemical properties necessary for boosting the performance toward a range of catalytic reactions.
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Affiliation(s)
- Kyle D Gilroy
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
| | - Xuan Yang
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
| | - Shuifen Xie
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
| | - Ming Zhao
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Dong Qin
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Younan Xia
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, 30332, USA
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA, 30332, USA
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
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143
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Liang X, Govindaraju S, Yun K. Dual Applicability of Polyaniline Coated Gold Nanorods: A Study of Antibacterial and Redox Activity. BIOCHIP JOURNAL 2018. [DOI: 10.1007/s13206-017-2206-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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144
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Zhang W, Liu J, Niu W, Yan H, Lu X, Liu B. Tip-Selective Growth of Silver on Gold Nanostars for Surface-Enhanced Raman Scattering. ACS APPLIED MATERIALS & INTERFACES 2018; 10:14850-14856. [PMID: 29569899 DOI: 10.1021/acsami.7b19328] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nanogaps as "hot spots" with highly localized surface plasmon can generate ultrastrong electromagnetic fields. Superior to the exterior nanogaps obtained via aggregation and self-assembly, interior nanogaps within Au and Ag nanostructures give stable and reproducible surface-enhanced Raman scattering (SERS) signals. However, the synthesis of nanostructures with interior hot spots is still challenging because of the lack of high-yield strategies and clear design principles. Herein, gold-silver nanoclusters (Au-Ag NCs) with multiple interior hot spots were fabricated as SERS platforms via selective growth of Ag nanoparticles on the tips of Au nanostars (Au NSs). Furthermore, the interior gap sizes of Au-Ag NCs can be facilely tuned by changing the amount of AgNO3 used. Upon 785 nm excitation, single Au-Ag NC350 exhibits 43-fold larger SERS enhancement factor and the optimal signal reproducibility relative to single Au NS. The SERS enhancement factors and signal reproducibility of Au-Ag NCs increase with the decrease of gap sizes. Collectively, the Au-Ag NCs could serve as a flexible, reproducible, and active platform for SERS investigation.
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Affiliation(s)
- Weiqing Zhang
- Tianjin Key Laboratory of Advanced Functional Porous Materials, Institute for New Energy Materials & Low-Carbon Technologies , Tianjin University of Technology , Tianjin 300384 , China
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 117585 , Singapore
| | - Jie Liu
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 117585 , Singapore
| | - Wenxin Niu
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 117585 , Singapore
| | - Heng Yan
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 117585 , Singapore
| | - Xianmao Lu
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 117585 , Singapore
- Beijing Institute of Nanoenergy and Nanosystems , Chinese Academy of Sciences , Beijing 100083 , China
| | - Bin Liu
- Department of Chemical and Biomolecular Engineering , National University of Singapore , 117585 , Singapore
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145
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Watanabe K, Tanaka E, Ishii H, Nagao D. The plasmonic properties of gold nanoparticle clusters formed via applying an AC electric field. SOFT MATTER 2018; 14:3372-3377. [PMID: 29620115 DOI: 10.1039/c8sm00097b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
An external electric AC field with a field strength ranging from 10 V mm-1 to 30 V mm-1 and a frequency ranging from 0.1 kHz to 1 MHz was applied to suspensions of gold nanoparticles (Au NPs) to control their plasmonic properties. Apparent differences in the UV-vis spectra of the Au NPs were observed between the spectra with and without the field application. The characteristic red color of the Au NP suspension darkened; this suggested that the application of the AC field caused the aggregation of the Au NPs. In addition, the sizes of the Au NP clusters in suspension formed by the AC field application depended on the frequency of the applied field. The surface-enhanced Raman scattering (SERS) effects of Au NP clusters were examined by comparing the difference in Raman intensities obtained at 30 V mm-1 and in a frequency range of 0.1 kHz to 1 MHz. The application of a low-frequency field at 0.1 kHz caused a rapid aggregation of the Au NPs, resulting in low Raman intensities of the probe molecules. Conversely, high-frequency applications between 1 kHz and 1 MHz successfully enhanced the Raman intensities of the molecules in suspension. The strong correlation of the optical/sensing properties with the Au NP clustering states reveals that the application of an AC electric field is a powerful tool for control over the plasmonic properties.
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Affiliation(s)
- K Watanabe
- Department of Chemical Engineering, Tohoku University, 6-6-07 Aoba, Aramaki-aza Aoba-ku, Sendai, 980-8579, Japan.
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146
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Yao Y, Huang Z, Xie P, Lacey SD, Jacob RJ, Xie H, Chen F, Nie A, Pu T, Rehwoldt M, Yu D, Zachariah MR, Wang C, Shahbazian-Yassar R, Li J, Hu L. Carbothermal shock synthesis of high-entropy-alloy nanoparticles. Science 2018; 359:1489-1494. [DOI: 10.1126/science.aan5412] [Citation(s) in RCA: 621] [Impact Index Per Article: 103.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 12/14/2017] [Accepted: 02/02/2018] [Indexed: 01/19/2023]
Abstract
The controllable incorporation of multiple immiscible elements into a single nanoparticle merits untold scientific and technological potential, yet remains a challenge using conventional synthetic techniques. We present a general route for alloying up to eight dissimilar elements into single-phase solid-solution nanoparticles, referred to as high-entropy-alloy nanoparticles (HEA-NPs), by thermally shocking precursor metal salt mixtures loaded onto carbon supports [temperature ~2000 kelvin (K), 55-millisecond duration, rate of ~105 K per second]. We synthesized a wide range of multicomponent nanoparticles with a desired chemistry (composition), size, and phase (solid solution, phase-separated) by controlling the carbothermal shock (CTS) parameters (substrate, temperature, shock duration, and heating/cooling rate). To prove utility, we synthesized quinary HEA-NPs as ammonia oxidation catalysts with ~100% conversion and >99% nitrogen oxide selectivity over prolonged operations.
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Affiliation(s)
- Yonggang Yao
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Zhennan Huang
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago (UIC), Chicago, IL 60607, USA
| | - Pengfei Xie
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Steven D. Lacey
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Rohit Jiji Jacob
- Department of Chemical and Biomolecular Engineering and Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
| | - Hua Xie
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Fengjuan Chen
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Anmin Nie
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago (UIC), Chicago, IL 60607, USA
| | - Tiancheng Pu
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Miles Rehwoldt
- Department of Chemical and Biomolecular Engineering and Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
| | - Daiwei Yu
- Department of Nuclear Science and Engineering, Department of Materials Science and Engineering, and Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Michael R. Zachariah
- Department of Chemical and Biomolecular Engineering and Chemistry and Biochemistry, University of Maryland, College Park, MD 20742, USA
| | - Chao Wang
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Reza Shahbazian-Yassar
- Department of Mechanical and Industrial Engineering, University of Illinois at Chicago (UIC), Chicago, IL 60607, USA
| | - Ju Li
- Department of Nuclear Science and Engineering, Department of Materials Science and Engineering, and Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Liangbing Hu
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
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147
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Wang F, Kusada K, Wu D, Yamamoto T, Toriyama T, Matsumura S, Nanba Y, Koyama M, Kitagawa H. Solid‐Solution Alloy Nanoparticles of the Immiscible Iridium–Copper System with a Wide Composition Range for Enhanced Electrocatalytic Applications. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800650] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Fenglong Wang
- Division of Chemistry Graduate School of Science Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku Kyoto 606–8502 Japan
| | - Kohei Kusada
- Division of Chemistry Graduate School of Science Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku Kyoto 606–8502 Japan
| | - Dongshuang Wu
- Division of Chemistry Graduate School of Science Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku Kyoto 606–8502 Japan
| | - Tomokazu Yamamoto
- Department of Applied Quantum Physics and Nuclear Engineering Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
- The Ultramicroscopy Researcher Center Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
| | - Takaaki Toriyama
- The Ultramicroscopy Researcher Center Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
| | - Syo Matsumura
- Department of Applied Quantum Physics and Nuclear Engineering Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
- The Ultramicroscopy Researcher Center Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
- INAMORI Frontier Research Center Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
| | - Yusuke Nanba
- INAMORI Frontier Research Center Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
| | - Michihisa Koyama
- INAMORI Frontier Research Center Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
| | - Hiroshi Kitagawa
- Division of Chemistry Graduate School of Science Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku Kyoto 606–8502 Japan
- INAMORI Frontier Research Center Kyushu University Motooka 744, Nishi-ku Fukuoka 819-0395 Japan
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Wang F, Kusada K, Wu D, Yamamoto T, Toriyama T, Matsumura S, Nanba Y, Koyama M, Kitagawa H. Solid-Solution Alloy Nanoparticles of the Immiscible Iridium-Copper System with a Wide Composition Range for Enhanced Electrocatalytic Applications. Angew Chem Int Ed Engl 2018; 57:4505-4509. [PMID: 29436095 DOI: 10.1002/anie.201800650] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Indexed: 01/08/2023]
Abstract
For the first time, we synthesize solid-solution alloy nanoparticles of Ir and Cu with a size of ca. 2 nm, despite Ir and Cu being immiscible in the bulk up to their melting over the whole composition range. We performed a systematic characterization on the nature of the Irx Cu1-x solid-solution alloys using powder X-ray diffraction, scanning transmission electron microscopy coupled with energy-dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy. The results showed that the Irx Cu1-x alloys had a face-centered-cubic structure; charge transfer from Cu to Ir occurred in the alloy nanoparticles, as the core-level Ir 4f peaks shifted to lower energy region with the increase in Cu content. Furthermore, we observed that the alloying of Ir with Cu enhanced both the electrocatalytic oxygen evolution and oxygen reduction reactions. The enhanced activities could be attributed to the electronic interaction between Ir and Cu arising from the alloying effect at atomic-level.
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Affiliation(s)
- Fenglong Wang
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Kohei Kusada
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Dongshuang Wu
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Tomokazu Yamamoto
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.,The Ultramicroscopy Researcher Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Takaaki Toriyama
- The Ultramicroscopy Researcher Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Syo Matsumura
- Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.,The Ultramicroscopy Researcher Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan.,INAMORI Frontier Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Yusuke Nanba
- INAMORI Frontier Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Michihisa Koyama
- INAMORI Frontier Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Hiroshi Kitagawa
- Division of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan.,INAMORI Frontier Research Center, Kyushu University, Motooka 744, Nishi-ku, Fukuoka, 819-0395, Japan
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150
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Cho A, Byun S, Kim BM. AuPd−Fe3
O4
Nanoparticle Catalysts for Highly Selective, One-Pot Cascade Nitro-Reduction and Reductive Amination. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701462] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Ahra Cho
- Department of Chemistry, College of Natural Sciences; Seoul National University; 1 Gwanak-ro Gwanak-gu, Seoul 08826 Republic of Korea
| | - Sangmoon Byun
- Department of Chemistry, College of Natural Sciences; Seoul National University; 1 Gwanak-ro Gwanak-gu, Seoul 08826 Republic of Korea
- The Research Institute of Basic Sciences; Seoul National University; 1 Gwanak-ro Gwanak-gu, Seoul 08826 Republic of Korea
| | - B. Moon Kim
- Department of Chemistry, College of Natural Sciences; Seoul National University; 1 Gwanak-ro Gwanak-gu, Seoul 08826 Republic of Korea
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