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| Hauptseite > Publikationsdatenbank > An oxo-verdazyl radical for a symmetrical nonaqueous redox flow battery > print |
| Hauptseite > Publikationsdatenbank > An oxo-verdazyl radical for a symmetrical nonaqueous redox flow battery > print |
| 001 | 1019527 | ||
| 005 | 20240712113123.0 | ||
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| 100 | 1 | _ | |a Korshunov, Aleksandr |0 P:(DE-HGF)0 |b 0 |
| 245 | _ | _ | |a An oxo-verdazyl radical for a symmetrical nonaqueous redox flow battery |
| 260 | _ | _ | |a London [u.a.] |c 2020 |b RSC |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Verdazyl free radical compounds are promising candidates for symmetrical all-organic redox flow batteries(RFBs) due to their redox stability, the ease with which their chemical structure can be varied, and theirunique bipolar nature. The present work reports a preliminary screening of a selection of oxo-verdazylcompounds for key redox electrolyte parameters. Of the considered candidates, the 1,5-diphenyl-3-isopropyl-6-oxo-verdazyl radical performed best and is investigated in extensive RFB experiments tocompare its electrochemical behavior in cyclic voltammetry (CV) to that within an actual battery. Thesymmetrical oxo-verdazyl non-aqueous electrolyte RFB provides a mean voltage of 1.42 V anddemonstrates good stability as well as high coulombic (>97%) and energy efficiencies over more than100 charge/discharge cycles. The redox electrolyte is characterized at different stages within a singlecycle (‘state of charge’ experiments) independently for each half-cell. To address the specifics of theelectrolyte transition to RFB cell setup an ‘in-cell’ CV flow-enabled electrochemical study has beenconducted, introduced here as a new step towards standardization of the electrochemical description ofRFB electrolytes. The electrochemical performance results highlight oxo-verdazyls as versatile materialsfor energy applications and indicate great promise for their further development and optimization in thefield of RFBs. |
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| 700 | 1 | _ | |a Milner, Matthew James |0 P:(DE-HGF)0 |b 1 |
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| 700 | 1 | _ | |a Studer, Armido |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Winter, Martin |0 P:(DE-Juel1)166130 |b 4 |e Corresponding author |u fzj |
| 700 | 1 | _ | |a Cekic-Laskovic, Isidora |0 P:(DE-Juel1)171204 |b 5 |e Corresponding author |u fzj |
| 773 | _ | _ | |0 PERI:(DE-600)2702232-8 |p 22280–22291 |t Journal of materials chemistry / A |v 8 |y 2020 |x 2050-7488 |
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