Dependence of stability of the polymerizesd nickel complexes with schiff bases on the structure of the ligand diimine bridge

Research outputpeer-review

1 Citation (Scopus)

Abstract

In this work, the influence of substituents in the structure of the diimine bridge of nickel polymer complexes with salen-type ligands on the rate of loss of their electroactivity in dried and water-containing electrolyte solutions was studied. It is shown that the presence of the four methyl groups, which leaves the complex plane, can significantly reduce the rate of electroactivity loss during cycling in a water-containing electrolyte (residual capacity of 37% relative to the initial one after 50 cycles) compared to unsubstituted poly[Ni(salen)] (residual capacity of 15%), and complexes containing only one methyl group and methyl groups in alpha positions of the diimine bridge (retaining of 5% and 0% of residual capacity by after 50 cycles, respectively). It was shown that in all cases, when cycling in a water-containing electrolyte, in parallel with the loss of capacity of the polymer films, their mass increases.

Original languageEnglish
Title of host publicationECS Transactions
EditorsJiri Vondrak, F. Klein, Marie Sedlarikova
PublisherThe Electrochemical Society
Pages167-177
Number of pages11
Volume87
Edition1
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 1 Jan 2018
Event19th International Conference on Advanced Batteries, Accumulators and Fuel Cells, ABAF 2018 - Brno
Duration: 26 Aug 201829 Aug 2018

Conference

Conference19th International Conference on Advanced Batteries, Accumulators and Fuel Cells, ABAF 2018
CountryCzech Republic
CityBrno
Period26/08/1829/08/18

Fingerprint

Ligands
Electrolytes
Nickel
Water
Polymer films
Polymers

Scopus subject areas

  • Engineering(all)

Cite this

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abstract = "In this work, the influence of substituents in the structure of the diimine bridge of nickel polymer complexes with salen-type ligands on the rate of loss of their electroactivity in dried and water-containing electrolyte solutions was studied. It is shown that the presence of the four methyl groups, which leaves the complex plane, can significantly reduce the rate of electroactivity loss during cycling in a water-containing electrolyte (residual capacity of 37{\%} relative to the initial one after 50 cycles) compared to unsubstituted poly[Ni(salen)] (residual capacity of 15{\%}), and complexes containing only one methyl group and methyl groups in alpha positions of the diimine bridge (retaining of 5{\%} and 0{\%} of residual capacity by after 50 cycles, respectively). It was shown that in all cases, when cycling in a water-containing electrolyte, in parallel with the loss of capacity of the polymer films, their mass increases.",
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Dependence of stability of the polymerizesd nickel complexes with schiff bases on the structure of the ligand diimine bridge. / Алексеева, Елена Валерьевна; Ershov, V. A.; Konev, A. S.; Levin, O. V.

ECS Transactions. ed. / Jiri Vondrak; F. Klein; Marie Sedlarikova. Vol. 87 1. ed. The Electrochemical Society, 2018. p. 167-177.

Research outputpeer-review

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