Show simple item record
dc.contributor.author |
Burešová, Zuzana
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dc.contributor.author |
Klikar, Milan
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dc.contributor.author |
Mazúr, Petr
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dc.contributor.author |
Mikešová, Michaela
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dc.contributor.author |
Kvíčala, Jaroslav
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dc.contributor.author |
Bystron, Tomas
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dc.contributor.author |
Bureš, Filip
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dc.date.accessioned |
2022-06-03T12:26:19Z |
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dc.date.available |
2022-06-03T12:26:19Z |
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dc.date.issued |
2021 |
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dc.identifier.issn |
2296-2646 |
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dc.identifier.uri |
https://hdl.handle.net/10195/79260 |
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dc.description.abstract |
Bipyridinium salts are currently very popular due to their perspective applications in redox flow batteries. Hence, we designed and prepared a series of bipyridiniums based on 2,2 '-, 3,3 '-, and 4,4 '-bipyridine and 2,2 '-bipyrimidine. The straightforward synthesis utilizes commercially or readily available starting compounds and their direct N-alkylation, mostly using 1,3-propanesultone. All eleven target derivatives with systematically evolved structure were investigated by cyclic voltammetry, which allowed elucidating thorough structure-property relationships. The electrochemical behavior depends primarily on the parent scaffold, type of N-alkylation, number of quaternized nitrogen atoms, planarity, counter ion as well as the used media. Two derivatives featuring quasi-reversible redox processes were further tested on rotating disc electrode and in a flow battery half-cell. 4,4 '-Bipyridinium derivative bearing two sultone residues showed better performance and stability in the flow half-cell with small capacity decays of 0.09/0.15% per reduction-oxidation cycle, based on the number of the utilized redox processes (one/two). |
eng |
dc.format |
p. 631477 |
eng |
dc.language.iso |
eng |
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dc.publisher |
FRONTIERS MEDIA SA |
eng |
dc.relation.ispartof |
Frontiers in chemistry, volume 8, issue: January |
eng |
dc.rights |
open access |
eng |
dc.rights |
https://creativecommons.org/licenses/by/4.0/ |
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dc.subject |
bipyridine |
eng |
dc.subject |
bipyridinium |
eng |
dc.subject |
redox flow battery |
eng |
dc.subject |
property tuning |
eng |
dc.subject |
synthesis |
eng |
dc.subject |
electrochemistry |
eng |
dc.subject |
bipyridin |
cze |
dc.subject |
bipyridinium |
cze |
dc.subject |
redoxní průtočné baterie |
cze |
dc.subject |
elektrochemie |
cze |
dc.title |
Redox Property Tuning in Bipyridinium Salts |
eng |
dc.title.alternative |
Redoxní vlastnosti bipyridiniových solí |
cze |
dc.type |
article |
eng |
dc.description.abstract-translated |
Byla připravena série bipyridiniových solí na bázi 2,2'-, 3,3'- a 4,4'-bipyridinu a 2,2'-bipyrimidinu. N-alkylace byly prováděny komerčním 1,3-propansultonem. Vlastnosti všech jedenácti cílových látek byly studovány cyklickou voltametrií a byly tak popsány vztahy struktury-vlastnosti. Elektrochemické vlastnosti závisejí na typu skeletu, typu alkylace, počtu kvarternizovaných atomů dusíku, planaritě, doprovodném iontu a prostředí. |
cze |
dc.peerreviewed |
yes |
eng |
dc.publicationstatus |
published version |
eng |
dc.identifier.doi |
10.3389/fchem.2020.631477 |
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dc.relation.publisherversion |
https://doi.org/10.3389/fchem.2020.631477 |
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dc.identifier.wos |
000616511000001 |
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dc.identifier.scopus |
2-s2.0-85100961105 |
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dc.rights.license |
CC BY 4.0 |
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dc.identifier.obd |
39886141 |
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