1
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Chen Y, Estevez D, Zhu Z, Wang Y, Mai YW, Qin F. Multifunctional Conductive Hydrogel Composites with Nickel Nanowires and Liquid Metal Conductive Highways. ACS APPLIED MATERIALS & INTERFACES 2024; 16:29267-29281. [PMID: 38780052 DOI: 10.1021/acsami.4c05344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
The dramatic growth of smart wearable electronics has generated a demand for conductive hydrogels due to their tunability, stimulus responsiveness, and multimodal sensing capabilities. However, the substantial trade-off between mechanical and electrical properties hinders their multifunctionality. Here, we report a double-network hydrogel composite that features a conductive "highway" constructed using magnetic-field-aligned nickel nanowires and liquid metal. The liquid metal fills the gaps between the aligned nickel nanowires. Such interconnected structures can form efficient conductive paths at low filler content, resulting in high conductivity (1.11 × 104 S/m) and mechanical compliance (Young's modulus, 89 kPa; toughness, 721 kJ/m3). When used as a wearable sensor, the hydrogel displays a high sensitivity and fast response for wireless motion detection and human-machine interaction. Furthermore, by exploiting its outstanding conductivity and electrical heating capacity, the hydrogel integrates electromagnetic shielding and thermal management functionalities. Owing to these all-around properties, our design offers a broader platform for expanding hydrogel applications.
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Affiliation(s)
- Yanlin Chen
- Institute for Composites Science Innovation (InCSI), School of Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Diana Estevez
- Ningbo Innovation Center, Zhejiang University, 1 South Qianhu Road, Ningbo 315100, P. R. China
| | - Zihao Zhu
- Institute for Composites Science Innovation (InCSI), School of Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Yunfei Wang
- Institute for Composites Science Innovation (InCSI), School of Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Yiu-Wing Mai
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, P. R. China
| | - Faxiang Qin
- Institute for Composites Science Innovation (InCSI), School of Materials Science and Engineering, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
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2
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Eom S, Jung J, Kim DH. One-Pot Synthesis of Nanostructured Ni@Ni(OH) 2 and Co-Doped Ni@Ni(OH) 2 via Chemical Reduction Method for Supercapacitor Applications. MATERIALS (BASEL, SWITZERLAND) 2022; 16:380. [PMID: 36614719 PMCID: PMC9822482 DOI: 10.3390/ma16010380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/21/2022] [Accepted: 12/28/2022] [Indexed: 06/17/2023]
Abstract
Crystalline Ni@Ni(OH)2 (cNNH) and Co-doped cNNH were obtained via a simple one-pot hydrothermal synthesis using a modified chemical reduction method. The effect of each reagent on the synthesis of the nanostructures was investigated concerning the presence or absence of each reagent. The detailed morphology shows that both nanostructures consist of a Ni core and Ni(OH)2 shell layer (~5 nm). Co-doping influences the morphology and suppresses the particle agglomeration of cNNH. Co-doped cNNH showed a specific capacitance of 1238 F g-1 at 1 A g-1 and a capacitance retention of 76%, which are significantly higher than those of cNNH. The enhanced performance of the co-doped cNNH is attributed to the reduced path length of the electrons caused by the decrease in the size of the nanostructure and the increased conductivity due to Co ions substituting Ni ions. The reported synthesis method and electrochemical behaviors of cNNH and Co-doped cNNH affirm their potential as electrochemically active materials for supercapacitor applications.
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3
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Chai AW, Wang CC, Chen CY. Magnetic-field-induced acicular nickel immobilized on carbon nanofibers as electrodes for electrochemical glucose sensing. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.10.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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4
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Ni nanodendrites prepared by a low-temperature process as electrocatalysts for hydrogen evolution reaction in alkaline solution. MOLECULAR CATALYSIS 2021. [DOI: 10.1016/j.mcat.2021.112006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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Preger C, Josefsson M, Westerström R, Messing ME. Bottom-up field-directed self-assembly of magnetic nanoparticles into ordered nano- and macrostructures. NANOTECHNOLOGY 2021; 32:195603. [PMID: 33530061 DOI: 10.1088/1361-6528/abe263] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Directed self-assembly of nanoparticles (NPs) is a promising strategy for bottom-up fabrication of nanostructured materials with tailored composition and morphology. Here, we present a simple and highly flexible method where charged magnetic aerosolized (i.e. suspended in a gas) NPs with tunable size and composition are self-assembled into nanostructures using combined electric and magnetic fields. Size-selected Co, Ni, and Fe NPs have been generated by spark ablation, and self-assembled into different structures, ranging from one-dimensional nanochains to macroscopic three-dimensional networks. By comparing the resulting structures with simulations, we can conclude that the magnetization of the NPs governs the self-assembly through interparticle magnetic dipole-dipole interactions. We also show how the orientation of the external magnetic field directs the self-assembly into differently aligned nano- and macroscopic structures. These results demonstrate how aerosol deposition in a combined electric and magnetic field can be used for directed bottom-up self-assembly of nanostructures with specialized composition and morphology.
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Affiliation(s)
- Calle Preger
- NanoLund, Lund University, Box 118, SE-22100 Lund, Sweden
- Solid State Physics, Lund University, Box 118, SE-22100 Lund, Sweden
| | - Martin Josefsson
- NanoLund, Lund University, Box 118, SE-22100 Lund, Sweden
- Solid State Physics, Lund University, Box 118, SE-22100 Lund, Sweden
| | - Rasmus Westerström
- NanoLund, Lund University, Box 118, SE-22100 Lund, Sweden
- Synchrotron Radiation Research, Lund University, Box 118, SE-22100 Lund, Sweden
| | - Maria E Messing
- NanoLund, Lund University, Box 118, SE-22100 Lund, Sweden
- Solid State Physics, Lund University, Box 118, SE-22100 Lund, Sweden
- Synchrotron Radiation Research, Lund University, Box 118, SE-22100 Lund, Sweden
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6
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Muangnapoh T, Srimara P, Vas-Umnuay P. Template- and Magnetic Field-Free Chemical Reduction of Ni Nanochains for Ni-Al 2O 3 Cermet Films: Growth Control, Characterization, and Application. ACS OMEGA 2020; 5:24584-24591. [PMID: 33015476 PMCID: PMC7528339 DOI: 10.1021/acsomega.0c03077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Accepted: 08/31/2020] [Indexed: 06/11/2023]
Abstract
Cermet-based solar absorbers containing nickel (Ni) in a nanochain (NC) structure embedded in an aluminum oxide (Al2O3) film demonstrated a high absorptance of more than 90% of the solar spectrum. In this work, Ni NCs were successfully prepared by a simple chemical reduction method without the assistance of a template or magnetic field. The formation of Ni nanoparticles (NPs) in different configurations was controlled by adjusting the NaOH:NiCl2 molar ratio. Not only was NaOH used to adjust the solution pH but it also induced the reduction reaction to be faster and so resulted in a larger number of Ni nuclei. Together with the intrinsic magnetic property of Ni, Ni NPs tended to orient in a chain-like manner to form Ni NCs that remained stable throughout the reaction. Increasing the NaOH:NiCl2 molar ratio up to 8 led to a uniform morphology of Ni NCs. However, at higher molar ratios (above 8), the NCs were likely to collapse at the end of the reaction, forming near-globular particles. With its unique structure, metallic Ni NCs were employed by incorporating them into a ceramic layer of Al2O3, which can be used as efficient cermet materials. Compared to a conventional cermet with embedded spherical Ni NPs, a 16.4% increase in solar absorptance was observed with the Ni NCs due to their enhanced absorption and scattering in the solar spectrum. Moreover, increasing the Ni NC content in the Al2O3 layer gradually enhanced the solar absorptance to 0.91 and so was a good solar absorber.
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Affiliation(s)
- Tanyakorn Muangnapoh
- National
Nanotechnology Center (NANOTEC), National
Science and Technology Development Agency, 111 Thailand Science Park, Klong Luang, Pathumthani 12120, Thailand
| | - Piyarach Srimara
- Center
of Excellence in Particle and Material Processing Technology, Department
of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
| | - Paravee Vas-Umnuay
- Center
of Excellence in Particle and Material Processing Technology, Department
of Chemical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok 10330, Thailand
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7
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Li Q, Kartikowati CW, Iwaki T, Okuyama K, Ogi T. Enhanced magnetic performance of aligned wires assembled from nanoparticles: from nanoscale to macroscale. ROYAL SOCIETY OPEN SCIENCE 2020; 7:191656. [PMID: 32431870 PMCID: PMC7211840 DOI: 10.1098/rsos.191656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 03/26/2020] [Indexed: 06/11/2023]
Abstract
Magnetic wires in highly dense arrays, possessing unique magnetic properties, are eagerly anticipated for inexpensive and scalable fabrication technologies. This study reports a facile method to fabricate arrays of magnetic wires directly assembled from well-dispersed α″-Fe16N2/Al2O3 and Fe3O4 nanoparticles with average diameters of 45 nm and 65 nm, respectively. The magnetic arrays with a height scale of the order of 10 mm were formed on substrate surfaces, which were perpendicular to an applied magnetic field of 15 T. The applied magnetic field aligned the easy axis of the magnetic nanoparticles (MNPs) and resulted in a significant enhancement of the magnetic performance. Hysteresis curves reveal that values of magnetic coercivity and remanent magnetization in the preferred magnetization direction are both higher than that of the nanoparticles, while these values in the perpendicular direction are both lower. Enhancement in the magnetic property for arrays made from spindle-shape α″-Fe16N2/Al2O3 nanoparticles is higher than that made from cube-like α″-Fe16N2/Al2O3 ones, owing to the shape anisotropy of MNPs. Furthermore, the assembled highly magnetic α″-Fe16N2/Al2O3 arrays produced a detectable magnetic field with an intensity of approximately 0.2 T. Although high-intensity external field benefits for the fabrication of magnetic arrays, the newly developed technique provides an environmentally friendly and feasible approach to fabricate magnetic wires in highly dense arrays in open environment condition.
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Affiliation(s)
- Qing Li
- Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, People's Republic of China
| | - Christina W. Kartikowati
- JurusanTeknik Kimia, FakultasTeknik, Universitas Brawijaya, Jl. MT. Haryono 167, Malang 65145, Indonesia
| | - Toru Iwaki
- Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi, Hiroshima 739-8527, Japan
| | - Kikuo Okuyama
- Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi, Hiroshima 739-8527, Japan
| | - Takashi Ogi
- Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi, Hiroshima 739-8527, Japan
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8
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Wang X, Liu C, Wu C, Tian X, Wang K, Pei W, Wang Q. Magnetic field assisted synthesis of Co2P hollow nanoparticles with controllable shell thickness for hydrogen evolution reaction. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2019.135191] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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9
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A general strategy to inner tuned hydrothermal preparation of MxOy@M electrodes and improved electrochemical performances. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.04.114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Zhu L, Cui J, Zhang H, Ruan L, Ma N, Zou L, Deng T, Chen BH, Xiao Q. Room‐Temperature Morphology‐Controlled Synthesis of Nickel and Catalytic Properties of Corresponding Ru/Ni Catalysts. ChemCatChem 2019. [DOI: 10.1002/cctc.201900565] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Lihua Zhu
- Jiangxi Key Laboratory of Organic ChemistryJiangxi Science & Technology Normal University Nanchang 330013, Jiangxi Province P.R. China
- School of Metallurgy and Chemical EngineeringJiangxi University of Science and Technology Ganzhou 341000, Jiangxi Province P. R. China
| | - Jingjing Cui
- Jiangxi Key Laboratory of Organic ChemistryJiangxi Science & Technology Normal University Nanchang 330013, Jiangxi Province P.R. China
| | - Huan Zhang
- School of Metallurgy and Chemical EngineeringJiangxi University of Science and Technology Ganzhou 341000, Jiangxi Province P. R. China
| | - Luna Ruan
- School of Metallurgy and Chemical EngineeringJiangxi University of Science and Technology Ganzhou 341000, Jiangxi Province P. R. China
| | - Nan Ma
- School of Metallurgy and Chemical EngineeringJiangxi University of Science and Technology Ganzhou 341000, Jiangxi Province P. R. China
| | - Laixi Zou
- School of Metallurgy and Chemical EngineeringJiangxi University of Science and Technology Ganzhou 341000, Jiangxi Province P. R. China
| | - Tao Deng
- School of Metallurgy and Chemical EngineeringJiangxi University of Science and Technology Ganzhou 341000, Jiangxi Province P. R. China
| | - Bing Hui Chen
- Department of Chemical and Biochemical Engineering National Engineering Laboratory for Green Productions of Alcohols-Ethers-Esters College of Chemistry and Chemical EngineeringXiamen University Xiamen 361005 P.R. China
| | - Qiang Xiao
- Jiangxi Key Laboratory of Organic ChemistryJiangxi Science & Technology Normal University Nanchang 330013, Jiangxi Province P.R. China
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11
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Magnetic Field Patterning of Nickel Nanowire Film Realized by Printed Precursor Inks. MATERIALS 2019; 12:ma12060928. [PMID: 30897771 PMCID: PMC6471525 DOI: 10.3390/ma12060928] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/12/2019] [Accepted: 03/13/2019] [Indexed: 11/24/2022]
Abstract
This paper demonstrates an easily prepared novel material and approach to producing aligned nickel (Ni) nanowires having unique and customizable structures on a variety of substrates for electronic and magnetic applications. This is a new approach to producing printed metallic Ni structures from precursor materials, and it provides a novel technique for nanowire formation during reduction. This homogeneous solution can be printed in ambient conditions, and it forms aligned elemental Ni nanowires over large areas upon heating in the presence of a magnetic field. The use of templates or subsequent purification are not required. This technique is very flexible, and allows the preparation of unique patterns of nanowires which provides opportunities to produce structures with enhanced anisotropic electrical and magnetic properties. An example of this is the unique fabrication of aligned nanowire grids by overlaying layers of nanowires oriented at different angles with respect to each other. The resistivity of printed and cured films was found to be as low as 560 µΩ∙cm. The saturation magnetization was measured to be 30 emu∙g−1, which is comparable to bulk Ni. Magnetic anisotropy was induced with an axis along the direction of the applied magnetic field, giving soft magnetic properties.
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12
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Alvarez AE, Castagna RM, Sieben JM, Duarte MME. Unsupported Ni(Pt-Pd) Electro-catalysts Synthesized by Hydrazine Reduction under the Assistance of a Magnetic Field. ChemCatChem 2019. [DOI: 10.1002/cctc.201801768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Andrea E. Alvarez
- Instituto de Ingeniería Electroquímica y Corrosión (INIEC); Universidad Nacional del Sur; Avda. Alem 1253 Bahía Blanca B8000CPB Argentina
| | - Rodrigo M. Castagna
- Instituto de Ingeniería Electroquímica y Corrosión (INIEC); Universidad Nacional del Sur; Avda. Alem 1253 Bahía Blanca B8000CPB Argentina
| | - Juan Manuel Sieben
- Instituto de Ingeniería Electroquímica y Corrosión (INIEC); Universidad Nacional del Sur; Avda. Alem 1253 Bahía Blanca B8000CPB Argentina
- CONICET; Argentina
| | - Marta M. E. Duarte
- Instituto de Ingeniería Electroquímica y Corrosión (INIEC); Universidad Nacional del Sur; Avda. Alem 1253 Bahía Blanca B8000CPB Argentina
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13
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Wen X, Gu L, Bittner AM. Simple Electroless Synthesis of Cobalt Nanoparticle Chains, Oriented by Externally Applied Magnetic Fields. Z PHYS CHEM 2018. [DOI: 10.1515/zpch-2018-1135] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The electroless (chemical) deposition of cobalt on palladium-sensitized oxidized silicon wafers produces nanowires and chains made up by nanoparticles. We demonstrate that the application of moderate magnetic fields, provided by permanent magnets, during the growth produces highly oriented cobalt nanowires and nanoparticle chains. By adjusting the magnetic field direction in plane, parallel and crossed cobalt chain patterns are readily accessible. Perpendicular orientation of the field results in rod-like, standing-up chains of nanoparticles. We explain the observed structures with magnetostatic arguments.
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Affiliation(s)
- Xiaogang Wen
- Max Planck Institut für Festkörperforschung , Stuttgart , Germany
| | - Lin Gu
- Max Planck Institut für Metallforschung , Stuttgart , Germany
| | - Alexander M. Bittner
- Max Planck Institut für Festkörperforschung , Stuttgart , Germany
- Ikerbasque, Basque Foundation for Science , 48013 Bilbao , Spain
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14
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Zhu L, Zheng T, Zheng J, Yu C, Zhang N, Zhou Q, Zhang W, Chen BH. Shape control of nickel crystals and catalytic hydrogenation performance of ruthenium-on-Ni crystals. CrystEngComm 2018. [DOI: 10.1039/c7ce01847a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Nickel crystals with various shapes were obtained via hydrothermal synthesis. The effect of temperature and surfactant on nickel morphology was studied.
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Affiliation(s)
- Lihua Zhu
- School of Metallurgy and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
- Department of Chemical and Biochemical Engineering
| | - Tuo Zheng
- School of Metallurgy and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Jinbao Zheng
- Department of Chemical and Biochemical Engineering
- National Engineering Laboratory for Green Productions of Alcohols-Ethers-Esters
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
| | - Changlin Yu
- School of Metallurgy and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Nuowei Zhang
- Department of Chemical and Biochemical Engineering
- National Engineering Laboratory for Green Productions of Alcohols-Ethers-Esters
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
| | - Qiongyu Zhou
- School of Material Science and Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Wen Zhang
- School of Metallurgy and Chemical Engineering
- Jiangxi University of Science and Technology
- Ganzhou 341000
- China
| | - Bing Hui Chen
- Department of Chemical and Biochemical Engineering
- National Engineering Laboratory for Green Productions of Alcohols-Ethers-Esters
- College of Chemistry and Chemical Engineering
- Xiamen University
- Xiamen 361005
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15
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Krajewski M. Magnetic-field-induced synthesis of magnetic wire-like micro- and nanostructures. NANOSCALE 2017; 9:16511-16545. [PMID: 29067381 DOI: 10.1039/c7nr05823c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
A lot of physical and chemical preparation methods of one-dimensional (1D) structures are known today. Most of them use highly advanced technology or quite complex chemical reagents. This results in their high costs and difficulties with their implementation to a large industrial scale. Hence, new, facile and inexpensive approaches are still sought. One alternative to wire-like structure production is based on the chemical reduction reactions combined with an external magnetic field, which acts as an independent synthesis parameter. This approach is commonly called magnetic-field-assisted (MFA) synthesis or magnetic-field-induced (MFI) synthesis. As usual, this manufacturing strategy comprises both drawbacks and advantages, which are introduced in this review. Moreover, this work shows that MFI synthesis depends on several synthesis parameters including the strength of the applied magnetic field, reaction temperature, pH value of the reaction environment, chemical composition of the precursor solution, reaction time, and also the presence of surfactants, complexing agents, nucleating agents, initiators as well as organic solvents. All of them have an impact on the morphology and dimensions of wire-like materials and their chemical, physical and mechanical properties. Finally, the opportunities and challenges associated with the magnetic-assisted fabrication of wire-like structures are widely discussed in this review.
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Affiliation(s)
- Marcin Krajewski
- Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawinskiego Street 5B, 02-106 Warsaw, Poland.
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16
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Self-organization of nickel nanoparticles dispersed in acetone: From separate nanoparticles to three-dimensional superstructures. JOURNAL OF SAUDI CHEMICAL SOCIETY 2017. [DOI: 10.1016/j.jscs.2016.09.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Zhang J, Xiang W, Liu Y, Hu M, Zhao K. Synthesis of High-Aspect-Ratio Nickel Nanowires by Dropping Method. NANOSCALE RESEARCH LETTERS 2016; 11:118. [PMID: 26925866 PMCID: PMC4771680 DOI: 10.1186/s11671-016-1330-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Accepted: 02/09/2016] [Indexed: 05/14/2023]
Abstract
A facile and high-yield route, dropping method, has been used to synthesize Ni nanowires (NWs) with a high aspect ratio. Compared to the conventional chemical reduction method, the diameter of Ni NWs prepared by the dropping method distinctively decreased and the surface roughness was improved. After optimizing the process parameters such as the Ni ion concentration and volume of the dropped NiCl2·6H2O solution, the diameter and aspect ratio of the NWs are 70 nm and ~600, respectively. The possible synthesized process of the dropping method was discussed. This work presents a preferred approach to fabricate high-quality one-dimensional magnetic materials which have potential applications in electrochemical devices, magnetic sensors, and catalytic agents.
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Affiliation(s)
- Jiaqi Zhang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China.
- Beijing Key Laboratory of Optical Detection Technology for Oil and Gas, China University of Petroleum, Beijing, 102249, China.
- College of Science, China University of Petroleum, Beijing, 102249, China.
| | - Wenfeng Xiang
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing, 102249, China.
- Beijing Key Laboratory of Optical Detection Technology for Oil and Gas, China University of Petroleum, Beijing, 102249, China.
- College of Science, China University of Petroleum, Beijing, 102249, China.
| | - Yuan Liu
- Beijing Key Laboratory of Optical Detection Technology for Oil and Gas, China University of Petroleum, Beijing, 102249, China.
- College of Science, China University of Petroleum, Beijing, 102249, China.
| | - Minghao Hu
- Beijing Key Laboratory of Optical Detection Technology for Oil and Gas, China University of Petroleum, Beijing, 102249, China.
- College of Science, China University of Petroleum, Beijing, 102249, China.
| | - Kun Zhao
- Beijing Key Laboratory of Optical Detection Technology for Oil and Gas, China University of Petroleum, Beijing, 102249, China.
- College of Science, China University of Petroleum, Beijing, 102249, China.
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18
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Jana S. Advances in nanoscale alloys and intermetallics: low temperature solution chemistry synthesis and application in catalysis. Dalton Trans 2016; 44:18692-717. [PMID: 26477400 DOI: 10.1039/c5dt03699b] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Based on the bottom-up chemistry techniques, the size, shape, and composition controlled synthesis of nanoparticles can now be achieved uniformly, which is of great importance to the nanoscience community as well as in modern catalysis research. The low-temperature solution-phase synthesis approach represents one of the most attractive strategies and has been utilized to synthesize nanoscale metals, alloys and intermetallics, including a number of new metastable phases. This perspective will highlight the solution-based nanoparticle synthesis techniques, a low-temperature platform, for the synthesis of size and shape-tunable nanoscale transition metals, alloys, and intermetallics from the literature, keeping a focus on the utility of these nanomaterials in understanding the catalysis. For each solution-based nanoparticle synthesis technique, a comprehensive overview has been given for the reported nanoscale metals, alloys, and intermetallics, followed by critical comments. Finally, their enhanced catalytic activity and durability as novel catalysts have been discussed towards several hydrogenation/dehydrogenation reactions and also for different inorganic to organic reactions. Hence, the captivating advantages of this controllable low-temperature solution chemistry approach have several important implications and together with them this approach provides a promising route to the development of next-generation nanostructured metals, alloys, and intermetallics since they possess fascinating properties as well as outstanding catalytic activity.
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Affiliation(s)
- Subhra Jana
- Department of Chemical, Biological & Macro-Molecular Sciences, S. N. Bose National Centre for Basic Sciences, Block - JD, Sector-III, Salt Lake, Kolkata 700098, India.
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19
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Rafiee E, Joshaghani M, Ghaderi-Shekhi Abadi P. Shape-dependent catalytic activity of Fe3O4 nanostructures under the influence of an external magnetic field for multicomponent reactions in aqueous media. RSC Adv 2015. [DOI: 10.1039/c5ra14467a] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Fe3O4 nanostructures were synthesized under external magnetic field, shown shape-dependent catalytic activity for the synthesis of imidazole derivatives in water.
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Affiliation(s)
- E. Rafiee
- Department of Inorganic Chemistry
- Faculty of Chemistry
- Razi University
- Kermanshah
- Iran
| | - M. Joshaghani
- Department of Inorganic Chemistry
- Faculty of Chemistry
- Razi University
- Kermanshah
- Iran
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20
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Hu L, Zhang R, Chen Q. Synthesis and assembly of nanomaterials under magnetic fields. NANOSCALE 2014; 6:14064-105. [PMID: 25338267 DOI: 10.1039/c4nr05108d] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Traditionally, magnetic field has long been regarded as an important means for studying the magnetic properties of materials. With the development of synthesis and assembly methods, magnetic field, similar to conventional reaction conditions such as temperature, pressure, and surfactant, has been developed as a new parameter for synthesizing and assembling special structures. To date, magnetic fields have been widely employed for materials synthesis and assembly of one-dimensional (1D), two-dimensional (2D) or three-dimensional (3D) aggregates. In this review, we aim to provide a summary on the applications of magnetic fields in this area. Overall, the objectives of this review are: (1) to theoretically discuss several factors that refer to magnetic field effects (MFEs); (2) to review the magnetic-field-induced synthesis of nanomaterials; the 1D structure of various nanomaterials, such as metal oxides/sulfide, metals, alloys, and carbon, will be described in detail. Moreover, the MFEs on spin states of ions, magnetic domain and product phase distribution will be also involved; (3) to review the alignment of carbon nanotubes, assembly of magnetic nanomaterials and photonic crystals with the help of magnetic fields; and (4) to sketch the future opportunities that magnetic fields can face in the area of materials synthesis and assembly.
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Affiliation(s)
- Lin Hu
- High Magnetic Field Laboratory, Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei 230031, China.
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Li Z, Su Y, Liu Y, Wang J, Geng H, Sharma P, Zhang Y. Controlled one-step synthesis of spiky polycrystalline nickel nanowires with enhanced magnetic properties. CrystEngComm 2014. [DOI: 10.1039/c4ce00868e] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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An Z, Zhang J, Pan S, Song G. Novel peanut-like α-Fe2O3 superstructures: Oriented aggregation and Ostwald ripening in a one-pot solvothermal process. POWDER TECHNOL 2012. [DOI: 10.1016/j.powtec.2011.10.038] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Ding Q, Liu H, Yang L, Liu J. Speedy and surfactant-free in situ synthesis of nickel/Ag nanocomposites for reproducible SERS substrates. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm33200k] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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25
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Yu X, Yang S, Zhang B, Shao D, Dong X, Fang Y, Li Z, Wang H. Controlled synthesis of SnO2@carbon core-shell nanochains as high-performance anodes for lithium-ion batteries. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm11364j] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Cao F, Deng R, Tang J, Song S, Lei Y, Zhang H. Cobalt and nickel with various morphologies: mineralizer-assisted synthesis, formation mechanism, and magnetic properties. CrystEngComm 2011. [DOI: 10.1039/c0ce00074d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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Wang H, Chen QW, Yu YF, Cheng K. Assembly of superparamagnetic colloidal nanoparticles into field-responsive purple Bragg reflectors. Dalton Trans 2011; 40:4810-3. [DOI: 10.1039/c1dt10268k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Zhang Z, Duan H, Li S, Lin Y. Assembly of magnetic nanospheres into one-dimensional nanostructured carbon hybrid materials. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:6676-6680. [PMID: 20070084 DOI: 10.1021/la904010y] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The synthesis and characterization of carbon-coated ferromagnetic nanoparticles that organize into 1-D assemblies of micrometer-sized ferromagnetic chains is described. A controlled aromatization and carbonization of glucose under hydrothermal reaction conditions enabled the preparation of carbonaceous surfactants that were used as shells for the coating of ferromagnetic Fe(3)O(4) nanospheres with a uniform size distribution. Under controlled experimental conditions, it was, for the first time, demonstrated that glucose could be employed as the carbon source in the preparation of continuous 1-D carbon nanoparticle chains with magnetic nanosphere inclusions. The functional groups on the carbon surface will facilitate the linkage of functional groups or catalytic species to the surface in future application. The salient feature of the reported method was the assembly of magnetic nanospheres under hydrothermal reaction conditions in the absence of external fields.
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Affiliation(s)
- Zhongbo Zhang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun, PR China
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Ozdemir T, Sandal D, Culha M, Sanyal A, Atay NZ, Bucak S. Assembly of magnetic nanoparticles into higher structures on patterned magnetic beads under the influence of magnetic field. NANOTECHNOLOGY 2010; 21:125603. [PMID: 20203359 DOI: 10.1088/0957-4484/21/12/125603] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The self-assembly of nanoparticles into higher organizations in a controlled manner has critical importance for the utility of the unique properties of nanoparticles. The behavior of magnetic Fe(3)O(4) nanoparticles (MNPs) with an average size of 6 nm under an enhanced magnetic force is reported. Upon evaporation of the solvent where the MNPs are suspended, formation of unique micrometer-sized structures is achieved only when there is a patterned surface constructed from sub-micrometer size magnetic beads in between the applied magnetic field and the MNPs. The preliminary results indicate that the combined effect of magnetic field and evaporation rate might help the control of nanoparticle behavior on surfaces and interfaces in constructing higher structures.
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Affiliation(s)
- Tugce Ozdemir
- Department of Chemical Engineering, Yeditepe University, Istanbul, Turkey
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Gong J, Li S, Zhang D, Zhang X, Liu C, Tong Z. High quality self-assembly magnetite (Fe3O4) chain-like core-shell nanowires with luminescence synthesized by a facile one-pot hydrothermal process. Chem Commun (Camb) 2010; 46:3514-6. [DOI: 10.1039/c002199g] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ye M, Zorba S, He L, Hu Y, Maxwell RT, Farah C, Zhang Q, Yin Y. Self-assembly of superparamagnetic magnetite particles into peapod-like structures and their application in optical modulation. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm02001j] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Li P, Wang R, Chen W, Chen C, Gao X, Wee ATS. Well-aligned Nickel Nanochains Synthesized by a Template-free Route. NANOSCALE RESEARCH LETTERS 2009; 5:597-602. [PMID: 20672141 PMCID: PMC2893928 DOI: 10.1007/s11671-009-9512-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2009] [Accepted: 12/10/2009] [Indexed: 05/29/2023]
Abstract
Highly uniform and well-aligned one-dimensional Ni nanochains with controllable diameters, including 33, 78, and 120 nm, have been synthesized by applying an external magnetic field without any surface modifying agent. The formation can be explained by the interactions of magnetic dipoles in the presence of applied magnetic field. Magnetic measurements demonstrate that the shape anisotropy dominates the magnetic anisotropy. The demagnetization factor, ∆N, is in the range of 0.23-0.36.
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Affiliation(s)
- Pengwei Li
- Key Laboratory of Micro-Nano Measurement-Manipulation and Physics (Ministry of Education) and Department of Physics, Beijing University of Aeronautics and Astronautics, 100191, Beijing, People’s Republic of China
| | - Rongming Wang
- Key Laboratory of Micro-Nano Measurement-Manipulation and Physics (Ministry of Education) and Department of Physics, Beijing University of Aeronautics and Astronautics, 100191, Beijing, People’s Republic of China
| | - Weimeng Chen
- Department of Physics, Peking University, 100871, Beijing, People’s Republic of China
| | - Chinping Chen
- Department of Physics, Peking University, 100871, Beijing, People’s Republic of China
| | - Xingyu Gao
- Departments of Physics, National University of Singapore, Singapore, 117542, Republic of Singapore
| | - ATS Wee
- Departments of Physics, National University of Singapore, Singapore, 117542, Republic of Singapore
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Pang H, Gao F, Guan L, Huang Y, Lu Q. Magnetic field-assisted hydrothermal synthesis of magnetic microwire arrays. Chem Phys Lett 2009. [DOI: 10.1016/j.cplett.2009.09.093] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ni X, Zheng H, Yang Q, Tang K, Liao G. Ammonia‐Assisted Fabrication of Flowery Nanostructures of Metallic Nickel Assembled from Hexagonal Platelets. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200800976] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiaomin Ni
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China, Fax: +86‐551‐3601669
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Huagui Zheng
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Qing Yang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Kaibin Tang
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China
| | - Guangxuan Liao
- State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, Anhui 230026, P. R. China, Fax: +86‐551‐3601669
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Li H, Liao S. A magnetic-field-assisted solution-phase route to cobalt thin film composed of cobalt nanosheets. ACTA ACUST UNITED AC 2009. [DOI: 10.1039/b907048f] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Abu-Much R, Gedanken A. Sonochemical Synthesis under a Magnetic Field: Fabrication of Nickel and Cobalt Particles and Variation of Their Physical Properties. Chemistry 2008; 14:10115-22. [DOI: 10.1002/chem.200801469] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Qin Y, Liu L, Yang R, Gösele U, Knez M. General assembly method for linear metal nanoparticle chains embedded in nanotubes. NANO LETTERS 2008; 8:3221-3225. [PMID: 18781818 DOI: 10.1021/nl801548h] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We demonstrate a flexible assembly method for producing linear metal nanoparticle chains embedded in nanotubes. The chain formation is based on the Rayleigh instability after annealing metal nanowires confined in nanotubes. Beginning with metal nanowires from arbitrary synthesis methods, atomic layer deposition (ALD) was applied to coat the wires first with a sacrificial layer then with a shell layer. Subsequently, the sacrificial layer was removed leading to confined wires in nanotubes with a free volume. Finally, embedded nanoparticle chains were produced inducing the Rayleigh instability by annealing the confined nanowires. This method is quite general not only for different metals but also for different shell materials. We are able to tune the particle spacing and diameter, the shape of the nanochains, the tube diameter and the shell thickness by ALD significantly.
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Affiliation(s)
- Yong Qin
- Max-Planck-Institute of Microstructure Physics, Weinberg 2, D-06120 Halle, Germany.
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Gong C, Yu L, Duan Y, Tian J, Wu Z, Zhang Z. The Fabrication and Magnetic Properties of Ni Fibers Synthesized Under External Magnetic Fields. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800200] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Zhou W, Zheng K, He L, Wang R, Guo L, Chen C, Han X, Zhang Z. Ni/Ni3C core-shell nanochains and its magnetic properties: one-step synthesis at low temperature. NANO LETTERS 2008; 8:1147-1152. [PMID: 18358008 DOI: 10.1021/nl073291j] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
One-dimensional Ni/Ni3C core-shell nanoball chains with an average diameter by around 30 nm were synthesized by means of a mild chemical solution method using a soft template of trioctylphosphine oxide (TOPO). It was revealed that the uniform Ni nanochains were capped with Ni3C thin shells by about 1-4 nm in thickness and each Ni core consists of polygrains. The coercivity of the core-shell nanochains is much enhanced (600 Oe at 5 K) and comparable with single Ni nanowires due to the one-dimensional shape anisotropy. Deriving from the distinctive structure of Ni core and Ni 3C shell, this architecture may possess a possible bifunctionality. This unique architecture is also useful for the study on the magnetization reversal mechanism of one-dimensional magnetic nanostructure.
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Affiliation(s)
- Wei Zhou
- School of Materials Science and Engineering, School of Science, Beijing University of Aeronautics and Astronautics, Beijing 100083, People's Republic of China
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42
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An Z, Pan S, Zhang J, Song G. Facile synthesis of urchin-like glass/nickel core/shell composite hollow spheres. Dalton Trans 2008:5155-8. [DOI: 10.1039/b812098f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Ni X, Zhang J, Zhang Y, Zheng H. Citrate-assisted synthesis of prickly nickel microwires and their surface modification with silver. J Colloid Interface Sci 2007; 307:554-8. [PMID: 17196606 DOI: 10.1016/j.jcis.2006.12.028] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2006] [Revised: 11/13/2006] [Accepted: 12/11/2006] [Indexed: 11/17/2022]
Abstract
A new type of prickly nickel microwires assembled by thornlike nanocrystals was fabricated through a simple chemical reduction route with the assistance of citrate. Thus-prepared nickel wires were subsequently morphology-retained modified with a thin silver shell via transmetallation. Compared with the uncoated sample, the Ni(core)-Ag(shell) wires exhibited much-enhanced oxidation resistance, slightly changed magnetic properties and stark different catalysis for the creation of carbon particles in pyrolyzing acetone.
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Affiliation(s)
- Xiaomin Ni
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, PR China
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Ni X, Zhao Q, Zhang Y, Zheng H. Reticular Nickel Microwires with Assembled Nanostructures: Synthesis, Magnetism and Catalysis for the Growth of Carbon Nanotubes. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200600842] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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45
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Sun L, Chen Q, Tang Y, Xiong Y. Formation of one-dimensional nickel wires by chemical reduction of nickel ions under magnetic fields. Chem Commun (Camb) 2007:2844-6. [PMID: 17609795 DOI: 10.1039/b704689h] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One-dimensional wires of metallic nickel with width fluctuation were prepared in the presence of magnetic fields, and the chemical reduction of [Ni(N(2)H(4))(x)](2+) under magnetic fields was investigated.
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Affiliation(s)
- Lixia Sun
- Hefei National Laboratory for Physical Science at Microscale and Department of Materials Science & Engineering, University of Science and Technology of China, Hefei 230026, P. R. China
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46
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Wang Y, Zhu Q, Zhang H. Fabrication and magnetic properties of hierarchical porous hollow nickel microspheres. ACTA ACUST UNITED AC 2006. [DOI: 10.1039/b517176h] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Preparation and characterization of shuttle-like α-Fe2O3 nanoparticles by supermolecular template. J SOLID STATE CHEM 2005. [DOI: 10.1016/j.jssc.2005.06.018] [Citation(s) in RCA: 116] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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48
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Selective fabrication of metastable greigite (Fe3S4) nanocrystallites and its magnetic properties through a simple solution-based route. Chem Phys Lett 2005. [DOI: 10.1016/j.cplett.2005.01.050] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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