Microstructure and Lubrication Properties of Lamellar Liquid Crystal in Brij30/[Bmim]PF6/H2O System

Ge, Lingling; Chen, Liping; Guo, Rong

doi:10.1007/s11249-007-9256-3

Cited by 27 publications

(14 citation statements)

References 29 publications

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“…The IL behaved as a co‐surfactant to promote the formation of ordered mesophases . Lamellar liquid‐crystal gels were formed by the polyoxyethylene laurylether (Brij30)/C 4 mimPF 6 /water system . ILs with alkyl length n > 10 in the cations are almost low‐melting‐temperature mesomorphic crystalline solids, which are feasible to form LC gels.…”

Section: Use Of Ils As Templatesmentioning

confidence: 99%

Synthesis of Functional Nanomaterials in Ionic Liquids

2015

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Utilization of ionic liquids (ILs) in material synthesis is a promising field. The unusual properties of ILs provide new opportunities for the design of functional materials, and much excellent work has been reported. Here, the progress in material design and synthesis using ILs, especially nanomaterials, is discussed, including the unitization of ILs as synthetic media, templates, precursors, or components in the synthesis of various categories of nanomaterials. The challenges and opportunities in this interesting and rapid developing area are also discussed.

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Section: Use Of Ils As Templatesmentioning

confidence: 99%

Synthesis of Functional Nanomaterials in Ionic Liquids

2015

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“…Various MNPs such as Pd, Au, Fe, Pt, Ag and metal oxide NPs have been synthesized using plant extracts and enzymes without any environmental hazards . There are several reducing agents for the synthesis of the MNPs, as shown in Table . In biological methods, the metal ions are reduced to zerovalent metallic particles using phytochemicals present in plant extracts (Figure ) as alternatives to the commonly used hydride reducing agent such as sodium borohydride, hydrazine hydrate, Tween 85, ascorbic acid, DMF or glycerol.…”

Section: Introductionmentioning

confidence: 99%

“…[18,19] There are several reducing agents for the synthesis of the MNPs, as shown in Table 2. [20][21][22][23][24][25][26][27][28][29] In biological methods, the metal ions are reduced Mahmoud Nasrollahzadeh received his PhD degree in Organic Chemistry from the Bu-Ali Sina University, Iran in 2012. Then, he moved to the Chemistry Department in the University of Qom as an Assistant Professor, and soon after he was promoted to Associate Professor.…”

Section: Introductionmentioning

confidence: 99%

Recent Developments in the Plant‐Mediated Green Synthesis of Ag‐Based Nanoparticles for Environmental and Catalytic Applications

Nasrollahzadeh

Yek

Motahharifar

et al. 2019

The Chemical Record

148

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Among different metallic nanoparticles, sliver nanoparticles (Ag NPs) are one of the most essential and fascinating nanomaterials. Importantly, among the metal based nanoparticles, Ag NPs play a key role in various fields such as biomedicine, biosensors, catalysis, pharmaceuticals, nanoscience and nanotechnology, particularly in nanomedicine. A main concern about the chemical synthesis of Ag NPs is the production of hazardous chemicals and toxic wastes. To overcome this problem, many research studies have been carried out on the green synthesis of Ag NPs using green sources such as plant extracts, microorganisms and some biopolymers without formation of hazardous wastes. Among green sources, plants could be remarkably valuable to exploring the biosynthesis of Ag NPs. In this review, the green synthesis of Ag‐based nanocatalysts such as Ag NPs, AgPd NPs, Au−Ag NPs, Ag/AgPd NPs, Ag/Cu NPs, Ag@AgCl NPs, Au−Ag@AgCl nanocomposite, Ag−Cr‐AC nanocomposite and Ag NPs immobilized on various supports such as Natrolite zeolite, bone, ZnO, seashell, hazelnut shell, almond shell, SnO2, perlite, ZrO2, TiO2, α‐Al2O3, CeO2, reduced graphene oxide (rGO), h‐Fe2O3@SiO2, and Fe3O4 using numerous plant extracts as reducing and stabilizing agents in the absence of hazardous surfactant and capping agents has been focused. This work describes the state of the art and future challenges in the biosynthesis of Ag‐based nanocatalysts. The fact about the application of living plants in metal nanoparticle (MNPs) industry is that it is a more economical and efficient biosynthesis biosynthetic procedure. In addition, the catalytic activities of the synthesized, Ag‐based recyclable nanocatalysts using various plant extracts in several chemical reactions such as oxidation, reduction, coupling, cycloaddition, cyanation, epoxidation, hydration, degradation and hydrogenation reactions have bben extensively discussed.

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“…The lubricating ability of ionic liquids has been demonstrated by several research teams [6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24], apart from our own group [25][26][27][28][29][30][31][32][33].…”

Section: Lubrication With Ionic Liquidsmentioning

confidence: 99%

“…-Just three very recent papers [19][20][21] study the interactions of ionic liquids with other additives. For the development of new lubricants it will be necessary to study the behaviour of ionic liquids in the presence of conventional additives.…”

Section: Lubrication With Ionic Liquidsmentioning

confidence: 99%

Ionic Liquids Interactions with Materials Surfaces Applications in Tribology and Nanotechnology

et al. 2008

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The extraordinary combination of high thermal stability, low volatility and the possibility of tailoring the physical and chemical properties of ionic liquids (ILs) by modifying their molecular features such as the length and nature of the cation lateral chains and the anion size and composition, has open the field of application of these green ordered fluids.ILs have shown their ability to provide effective lubrication with very low friction coefficients and wear rates under conditions for which the currently used lubricating fluids fail. These conditions cover strategic technologies such as aerospace, microelectronics and nanotechnology applications.At the present moment, there exist no liquid lubricants for high temperature, high vacuum and cryogenic conditions. We have determined the lubricating ability of ILs under extreme temperature conditions.We have also determined the conditions for the formation of tribocorrosion reaction products at metal-metal and metal-polymer interfaces. In the case of fluorine or phosphorus-containing imidazolium ionic liquids, formation of metallic fluorides and phosphates at the contact surfaces is the determining wear mechanism step.The surface interactions of imidazolium room temperature ILs have been studied in a variety of materials in sliding contact under variable conditions, both as neat lubricants and as additives of conventional basestocks.The ability of ILs molecules to interact with surfaces has also been explored in nanotechnology applications. It is well known that the use of ILs as solvents in the synthetic route, allows the control of size and shape of a variety of nanoparticles. We have developed new polymer/IL/nanoparticle nanocomposites where the size, morphology and distribution of the nanoparticles are controlled by surface interactions with IL molecules.

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Microstructure and Lubrication Properties of Lamellar Liquid Crystal in Brij30/[Bmim]PF6/H2O System

Cited by 27 publications

References 29 publications

Synthesis of Functional Nanomaterials in Ionic Liquids

Synthesis of Functional Nanomaterials in Ionic Liquids

Recent Developments in the Plant‐Mediated Green Synthesis of Ag‐Based Nanoparticles for Environmental and Catalytic Applications

Ionic Liquids Interactions with Materials Surfaces Applications in Tribology and Nanotechnology

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