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Elektrokemijska karakterizacija kinonskih derivatov za uporabo v organskih baterijah
ID Rems, Ervin (Author), ID Genorio, Boštjan (Mentor) More about this mentor... This link opens in a new window

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Abstract
Razvoj baterijskih sistemov lahko pomembno prispeva k prehodu na ogljično nevtralno družbo. Kinonski baterijski materiali so še posebej zanimivi zaradi velike razširjenosti kemijskih elementov, iz katerih so sestavljeni, relativno visoke energijske gostote in strukturne fleksibilnosti, ki omogoča preprosto prilagajanje njihovih elektrokemijskih lastnosti. Z elektrokemijsko karakterizacijo izbranih kinonskih derivatov sem določil reverzibilnost reakcij in vpliv nekaterih strukturnih značilnosti na njihove redoks potenciale v organskem elektrolitu. Pokazano je bilo, da potenciali z uvedbo aromatskih sistemov v kinonski sistem padajo. Elektronprivlačni substituenti potenciale povečajo, elektrondonorski pa zmanjšajo. Molekule, v katerih sta karbonilni skupini v orto položaju, kažejo večje redoks potenciale od primerljivih para spojin. Glede na redoks potencial in reverzibilnost reakcije ter teoretične specifične kapacitete molekul sem izbral molekule, primerne za nadaljnji študij v akumulatorskih sistemih.

Language:Slovenian
Keywords:kinoni, elektrokemijska karakterizacija, ciklična voltametrija, organske baterije
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Technology
Year:2020
PID:20.500.12556/RUL-117371 This link opens in a new window
COBISS.SI-ID:22830595 This link opens in a new window
Publication date in RUL:08.07.2020
Views:923
Downloads:240
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Secondary language

Language:English
Title:Electrochemical characterization of quinone derivatives for organic batteries
Abstract:
The development of new battery systems could be crucial for the transition to carbon-neutral society. Quinone battery materials are especially promising due to a widespread abundance of the elements in quinone molecules, relatively high energy density, and high structural flexibility, which can be used conveniently to adjust their electrochemical properties. Selected quinone derivatives were electrochemically characterized to determine the reversibility of the reactions and the effect of some structural units on the redox potential in the organic electrolyte. It was shown that the introduction of aromatic systems into quinones lowers the redox potential. In addition, electron-withdrawing groups increase the potential and, conversely, electron-donating groups decrease it. The ortho position of the carbonyl groups in quinones leads to a higher potential compared to para compounds. Most promising molecules, considering the redox potentials, reversibility, and theoretical specific capacity, were suggested to be further studied in battery systems.

Keywords:quinones, electrochemical characterization, cyclic voltammetry, organic batteries

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