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Aromatic Heterocycl...
Aromatic Heterocyclic Anion Based Ionic Liquids and Electrolytes
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- Ahmed, Mukhtiar (författare)
- Luleå tekniska universitet,Kemiteknik,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- Rao, Soniya, 1987 (författare)
- Department of Physics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden,Chalmers tekniska högskola,Chalmers University of Technology
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- Filippov, Andrei, PhD, 1957- (författare)
- Luleå tekniska universitet,Kemiteknik,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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- Johansson, Patrik, 1969 (författare)
- Department of Physics, Chalmers University of Technology, SE-412 96 Gothenburg, Sweden,Chalmers tekniska högskola,Chalmers University of Technology
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- Shah, Faiz Ullah, 1981- (författare)
- Luleå tekniska universitet,Kemiteknik,Luleå tekniska universitet (LTU),Luleå University of Technology (LTU)
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(creator_code:org_t)
- 2023
- 2023
- Engelska.
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Ingår i: Physical Chemistry, Chemical Physics - PCCP. - : Royal Society of Chemistry. - 1463-9076 .- 1463-9084. ; 25:4, s. 3502-3512
- Relaterad länk:
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https://ltu.diva-por... (primary) (Raw object)
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https://research.cha... (primary) (free)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://research.cha...
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Abstract
Ämnesord
Stäng
- Five new ionic materials comprising fluorine-free aromatic heterocyclic anions based on pyridine and pyrazine combined with a common n-tetrabutylphosphonium cation, (P4444)+, result in two room temperature ionic liquids (RTILs), one semi-solid, and two organic ionic plastic crystals (OIPCs) with melting points >20 °C. The OIPCs showed a plastic crystalline phase, multiple solid–solid transitions, and plastic crystalline and melt phases. For both the neat RTILs and the Li+ conducting electrolytes, the nature and strength of the ion–ion interactions mainly depend on the position of the nitrogen atom with respect to the carboxylate group in the anions. Furthermore, for the RTILs the ionic conductivity is effected by the electronic structure and flexibility of the ions and the anions diffuse faster than the (P4444)+ cation, but are slowed down in the electrolytes due to the strong electrostatic interactions between the carboxylate group of the anions and the Li+, as shown both experimentally and computationally. Overall, this study describes the effect of structural tuning of aromatic anions on the ion–ion interactions and introduces new ionic materials with promising properties to be used as solid and liquid electrolytes in energy storage devices.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- Chemistry of Interfaces
- Gränsytors kemi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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