Upscaling nanoparticle synthesis by sputter deposition in ionic liquids

Abstract Up-scaling of nanoparticle fabrication by sputtering into an ionic liquid is shown for the example of Cu. Long-time sputtering (24 h) into a large amount (50 mL) of the ionic liquid 1-butyl-3-methylimidazolium bis-(trifluoromethylsulfonyl)imide [Bmim][(Tf)2N] yields an amount of approximately 1 g Cu nanoparticles (mean spherical diameter (2.6 ± 1.1) nm), stabilized in ionic liquid without agglomerations. Extraction of Cu nanoparticles from the stabilizing ionic liquid was performed with the capping agent hexadecylamine. Extracted particles could be redispersed in other solvents, thus enabling applications of sputtered nanoparticles beyond ionic liquids.

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Molecular dynamics study of mesophase transitions upon annealing of imidazolium-based ionic liquids with long-alkyl chains

Physical Chemistry Chemical Physics ◽

10.1039/c8cp00698a ◽

2018 ◽

Vol 20 (15) ◽

pp. 9796-9805 ◽

Cited By ~ 2

Author(s):

Hailong Peng ◽

Momoji Kubo ◽

Hayato Shiba

Keyword(s):

Molecular Dynamics ◽

Ionic Liquid ◽

Ionic Liquids ◽

Alkyl Chains ◽

Different Temperatures ◽

Long Time

The isotropic to mesophase transition upon the long-time annealing of a 1-dodecyl-3-methylimidazolium hexafluorophosphate ionic liquid at different temperatures is illustrated.

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Ionic Liquid-Mediated Synthesis of Metal Nanoparticles

Research Anthology on Synthesis, Characterization, and Applications of Nanomaterials ◽

10.4018/978-1-7998-8591-7.ch076 ◽

2021 ◽

pp. 1832-1853

Author(s):

Vivek Srivastava

Keyword(s):

Ionic Liquid ◽

Ionic Liquids ◽

Metal Nanoparticles ◽

Nanoparticle Synthesis ◽

Significant Development ◽

Nanoparticles Synthesis

In this chapter, the authors discussed the recent as well as significant development in the synthesis of ionic liquid-mediated nanoparticles (considered a less toxic way to make nanoparticles). Apart from that, they also disused a small background of ionic liquid considering types, properties, and effect of ionic liquid's counterparts on nanoparticles synthesis. There are promising consequences proposing that the ionic liquid route can lead the design and fabrication of nanoparticles through the variety of size, nature, configuration, and functionality. All discussed examples in this chapter clearly depicted that ionic liquids add great value to the area of nanoparticle synthesis.

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Preparation of high-strength polyimide membranes capped by ionic liquids

High Performance Polymers ◽

10.1177/0954008320976742 ◽

2020 ◽

pp. 095400832097674

Author(s):

Pengfei Jiang ◽

Hongge Jia ◽

Jingyu Xu ◽

Hailiang Zhou ◽

Mingyu Zhang ◽

...

Keyword(s):

Ionic Liquid ◽

Ionic Liquids ◽

High Strength ◽

Capping Agent ◽

Carbonyl Groups ◽

High Mechanical Strength ◽

Polyimide Membrane ◽

Residual Amount ◽

End Capping ◽

Polyimide Membranes

In this study, we firstly used 1-carboxyethyl-3-methylimidazolium ionic liquid as a capping agent to terminate a binary linear polyimide containing different groups such as ether bonds, carbonyl groups, and fluorine, and prepared six kinds of polyimides capped with ionic liquids (IL-PI). The mechanical properties of the polyimide membranes capped with ionic liquids were higher than those of the uncapped polyimide membranes. The elastic modulus of polyimide membrane from 1,3-bis (4-aminophenoxy) benzene (BPDA) and 3,3′4,4′-benzophenone tetracarboxydianhydride (BTDA) by using ionic liquid as the end capping agent (IL-BPDA-BTDA) was 2012 MPa, which is about 70 times higher than that without the end capping agent. In a TG test, all polyimides capped by ionic liquids showed good thermal properties. The residual amount of the polyimides was more than 40% at 1000 °C, which was higher than the other uncapped polyimides. In conclusion, polyimide membranes with high temperature resistance and high mechanical strength were prepared through an ionic liquid termination method.

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Ultrathin oxide shell coating of metal nanoparticles using ionic liquid/metal sputtering

Journal of Materials Chemistry A ◽

10.1039/c4ta06643j ◽

2015 ◽

Vol 3 (11) ◽

pp. 6177-6186 ◽

Cited By ~ 24

Author(s):

Tsukasa Torimoto ◽

Yasuhiro Ohta ◽

Kazuki Enokida ◽

Daisuke Sugioka ◽

Tatsuya Kameyama ◽

...

Keyword(s):

Ionic Liquid ◽

Ionic Liquids ◽

Liquid Metal ◽

Metal Nanoparticles ◽

Electrochemical Stability ◽

Sputter Deposition ◽

Noble Metal Nanoparticles ◽

Oxide Shell ◽

Core Shell ◽

Ultrathin Oxide

The indium sputter deposition into ionic liquids containing noble metal nanoparticles produces core–shell-structured metal@In2O3 with high thermal and electrochemical stability.

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Ionic Liquid-Mediated Synthesis of Metal Nanoparticles

Handbook of Research on Emerging Developments and Environmental Impacts of Ecological Chemistry - Advances in Environmental Engineering and Green Technologies ◽

10.4018/978-1-7998-1241-8.ch017 ◽

2020 ◽

pp. 364-385

Author(s):

Vivek Srivastava

Keyword(s):

Ionic Liquid ◽

Ionic Liquids ◽

Metal Nanoparticles ◽

Nanoparticle Synthesis ◽

Significant Development ◽

Nanoparticles Synthesis

In this chapter, the authors discussed the recent as well as significant development in the synthesis of ionic liquid-mediated nanoparticles (considered a less toxic way to make nanoparticles). Apart from that, they also disused a small background of ionic liquid considering types, properties, and effect of ionic liquid's counterparts on nanoparticles synthesis. There are promising consequences proposing that the ionic liquid route can lead the design and fabrication of nanoparticles through the variety of size, nature, configuration, and functionality. All discussed examples in this chapter clearly depicted that ionic liquids add great value to the area of nanoparticle synthesis.

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A closer look at the defects and luminescence of nanocrystalline fluorides synthesized via ionic liquids: the case of Ce3+-doped BaF2

New Journal of Chemistry ◽

10.1039/c9nj04526k ◽

2020 ◽

Vol 44 (1) ◽

pp. 200-209 ◽

Cited By ~ 2

Author(s):

Rahul Kumar Sharma ◽

Yogendra Nath Chouryal ◽

Anatoly I. Slesarev ◽

Konstantin V. Ivanovskikh ◽

Ivan I. Leonidov ◽

...

Keyword(s):

Ionic Liquid ◽

Ionic Liquids ◽

Solvothermal Method ◽

Reaction Medium ◽

Capping Agent ◽

Phase Pure

Phase pure BaF2 doped with Ce3+ (0.1%) nanocrystals are synthesized using an ionic liquid (IL) ([C4mim][BF4]) assisted solvothermal method where the IL is not only used as a reaction medium and a capping agent, but also as a reaction partner.

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Mapping the “Extra Solvent Power, ESP” of Ionic Liquids for Monomers, Polymers and Globular Nanoparticles

10.26434/chemrxiv.5384293.v1 ◽

2017 ◽

Author(s):

Jose A. Pomposo

Keyword(s):

Ionic Liquid ◽

Ionic Liquids ◽

Linear Polymers ◽

Green Solvents ◽

Ionic Polymers ◽

First Time ◽

Solvent Power

Understanding the miscibility behavior of ionic liquid (IL) / monomer, IL / polymer and IL / nanoparticle mixtures is critical for the use of ILs as green solvents in polymerization processes, and to rationalize recent observations concerning the superior solubility of some proteins in ILs when compared to standard solvents. In this work, the most relevant results obtained in terms of a three-component Flory-Huggins theory concerning the “Extra Solvent Power, ESP” of ILs when compared to traditional non-ionic solvents for monomeric solutes (case I), linear polymers (case II) and globular nanoparticles (case III) are presented. Moreover, useful ESP maps are drawn for the first time for IL mixtures corresponding to case I, II and III. Finally, a potential pathway to improve the miscibility of non-ionic polymers in ILs is also proposed.

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Dynamics of Ion Locking in Doubly Polymerized Ionic Liquids

10.26434/chemrxiv.13239059.v1 ◽

2020 ◽

Author(s):

Swati Arora ◽

Julisa Rozon ◽

Jennifer Laaser

Keyword(s):

Dielectric Constant ◽

Ionic Liquid ◽

Ionic Liquids ◽

Ion Pairs ◽

Polymer Chains ◽

Ion Motion ◽

Charged Species ◽

Broadband Dielectric Spectroscopy ◽

Covalently Linked ◽

Insight Into

<div>In this work, we investigate the dynamics of ion motion in “doubly-polymerized” ionic liquids (DPILs) in which both charged species of an ionic liquid are covalently linked to the same polymer chains. Broadband dielectric spectroscopy is used to characterize these materials over a broad frequency and temperature range, and their behavior is compared to that of conventional “singly-polymerized” ionic liquids (SPILs) in which only one of the charged species is attached to the polymer chains. Polymerization of the DPIL decreases the bulk ionic conductivity by four orders of magnitude relative to both SPILs. The timescales for local ionic rearrangement are similarly found to be approximately four orders of magnitude slower in the DPILs than in the SPILs, and the DPILs also have a lower static dielectric constant. These results suggest that copolymerization of the ionic monomers affects ion motion on both the bulk and the local scales, with ion pairs serving to form strong physical crosslinks between the polymer chains. This study provides quantitative insight into the energetics and timescales of ion motion that drive the phenomenon of “ion locking” currently under investigation for new classes of organic electronics.</div>

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Ionic Liquid Assisted Synthesis of Some 2-Aminobenzenethiols

Letters in Organic Chemistry ◽

10.2174/1570178615666181011114454 ◽

2019 ◽

Vol 16 (7) ◽

pp. 550-555

Author(s):

Dinesh K. Jangid ◽

Keshav L. Ameta ◽

Surbhi Dhadda ◽

Anjali Guleria ◽

Prakash G. Goswami ◽

...

Keyword(s):

Ionic Liquid ◽

Ionic Liquids ◽

Comparative Study ◽

Maximum Yield ◽

Efficient Synthesis ◽

Target Molecules ◽

Presence And Absence

Ionic Liquid assisted efficient synthesis of some 2-aminobenzenethiols has been reported using three different Ionic Liquids (ILs) namely methylimidazolium tetrafluoroborate [MIM]+[BF4]−, methylimidazolium chloride [MIM]+[Cl]− and methylimidazolium nitrate [MIM]+[NO3]−. A comparative study has been carried out for the synthesis of target molecules in the presence and absence of IL, leading to conclusion that maximum yield has been observed with [MIM]+[BF4]−.

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