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Anion Architecture ...
Anion Architecture Controls Structure and Electroresponsivity of Anhalogenous Ionic Liquids in a Sustainable Fluid
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- Li, Sichao (author)
- Division of Surface and Corrosion Science, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden
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- Hammond, Oliver S. (author)
- Department of Materials and Environmental Chemistry, Stockholm University, Stockholm SE-114 18, Sweden; intelligent Advanced Materials, Department of Biological & Chemical Engineering and iNANO, Aarhus University, Aarhus C 8000, Denmark
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- Nelson, Andrew (author)
- Australian Centre for Neutron Scattering, ANSTO, Lucas Heights, New South Wales 2234, Australia
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- de Campo, Liliana (author)
- Australian Nuclear Science and Technology Organisation, Australia,Australian Centre for Neutron Scattering, ANSTO, Lucas Heights, New South Wales 2234, Australia
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- Moir, Michael (author)
- Australian Nuclear Science and Technology Organisation, Australia,National Deuteration Facility, ANSTO, Lucas Heights, New South Wales 2234, Australia
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- Recsei, Carl (author)
- Australian Nuclear Science and Technology Organisation, Australia,National Deuteration Facility, ANSTO, Lucas Heights, New South Wales 2234, Australia
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- Shimpi, Manishkumar R. (author)
- Luleå tekniska universitet,Kemiteknik,Department of Materials and Environmental Chemistry, Stockholm University, Stockholm SE-114 18, Sweden,Stockholm University, Sweden; Luleå University of Technology, Sweden
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- Glavatskih, Sergei (author)
- System and Component Design, Department of Engineering Design, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden; School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia; Department of Electromechanical, Systems and Metal Engineering, Ghent University, Ghent B-9052, Belgium
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- Pilkington, Georgia A. (author)
- Division of Surface and Corrosion Science, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden
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- Mudring, Anja-Verena (author)
- Umeå universitet,Institutionen för fysik,Department of Materials and Environmental Chemistry, Stockholm University, Stockholm SE-114 18, Sweden; intelligent Advanced Materials, Department of Biological & Chemical Engineering and iNANO, Aarhus University, Aarhus C 8000, Denmark; Department of Physics, Umeå University, Umeå SE-901 87, Sweden
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- Rutland, Mark W., Professor (author)
- RISE,Material- och ytdesign,Division of Surface and Corrosion Science, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm SE-100 44, Sweden; School of Chemistry, University of New South Wales, Sydney, New South Wales 2052, Australia; Bioeconomy and Health Department Materials and Surface Design, RISE Research Institutes of Sweden, Stockholm SE-114 28, Sweden; Laboratoire de Tribologie et Dynamique des Systèmes, École Centrale de Lyon, Ecully Cedex 69134, France
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(creator_code:org_t)
- American Chemical Society, 2024
- 2024
- English.
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In: Journal of Physical Chemistry B. - : American Chemical Society. - 1520-6106 .- 1520-5207. ; 128:17, s. 4231-4242
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Abstract
Subject headings
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- Three nonhalogenated ionic liquids (ILs) dissolved in 2-ethylhexyl laurate (2-EHL), a biodegradable oil, are investigated in terms of their bulk and electro-interfacial nanoscale structures using small-angle neutron scattering (SANS) and neutron reflectivity (NR). The ILs share the same trihexyl(tetradecyl)phosphonium ([P6,6,6,14]+) cation paired with different anions, bis(mandelato)borate ([BMB]−), bis(oxalato)borate ([BOB]−), and bis(salicylato)borate ([BScB]−). SANS shows a high aspect ratio tubular self-assembly structure characterized by an IL core of alternating cations and anions with a 2-EHL-rich shell or corona in the bulk, the geometry of which depends upon the anion structure and concentration. NR also reveals a solvent-rich interfacial corona layer. Their electro-responsive behavior, pertaining to the structuring and composition of the interfacial layers, is also influenced by the anion identity. [P6,6,6,14][BOB] exhibits distinct electroresponsiveness to applied potentials, suggesting an ion exchange behavior from cation-dominated to anion-rich. Conversely, [P6,6,6,14][BMB] and [P6,6,6,14][BScB] demonstrate minimal electroresponses across all studied potentials, related to their different dissociative and diffusive behavior. A mixed system is dominated by the least soluble IL but exhibits an increase in disorder. This work reveals the subtlety of anion architecture in tuning bulk and electro-interfacial properties, offering valuable molecular insights for deploying nonhalogenated ILs as additives in biodegradable lubricants and supercapacitors.
Subject headings
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Keyword
- Additives
- Aspect ratio
- Ion exchange
- Negative ions
- Neutron scattering
- Positive ions
- anion
- boric acid
- cation
- ionic liquid
- lauric acid
- lubricating agent
- nanomaterial
- solvent
- Bio-degradable oil
- Control structure
- High aspect ratio
- Laurate
- Nanoscale structure
- Neutron reflectivity
- Oxalato
- Self-assembly structure
- Small-angle neutron scattering
- Tubulars
- article
- controlled study
- geometry
- ion exchange
- liquid
- neutron scattering
- nonhuman
- Ionic liquids
- Chemistry of Interfaces
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Li, Sichao
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Hammond, Oliver ...
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Nelson, Andrew
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de Campo, Lilian ...
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Moir, Michael
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Recsei, Carl
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Shimpi, Manishku ...
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Glavatskih, Serg ...
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Pilkington, Geor ...
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Mudring, Anja-Ve ...
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Rutland, Mark W. ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Physical Chemist ...
- Articles in the publication
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Journal of Physi ...
- By the university
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RISE
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Umeå University
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Luleå University of Technology