Application of a conversion electrode based on decomposition derivatives of Ag4[Fe(CN)6] for aqueous electrolyte batteries

Fyodor Malchik, Kaiyrgali Maldybayev, Tatyana Kan, Saule Kokhmetova, Andrey Kurbatov, Alina Galeyeva, Nufar Tubul, Netanel Shpigel, Thierry Djenizian

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

The lack of stable electrode materials for water-based electrolytes due to the intercalation and conversion reaction mechanisms encourage scientists to design new or renovate existing materials with better cyclability, capacity, and cost-effectiveness. Ag4[Fe(CN)6] is a material belonging to the Prussian blue family that can be used, as its other family members, as an electrode material with the intercalation/deintercalation reaction or conversion-type mechanism through Ag oxidation/reduction. However, due to the instability of this material in its dry state, it decomposes to AgCN and a Prussian blue residual complex. A possible reason for Ag4[Fe(CN)6] decomposition is discussed. Nevertheless, it is shown that the decomposition products of Ag4[Fe(CN)6] have electrochemical activity due to the reversible oxidation/reduction of Ag atoms in water-based electrolytes.

Original languageEnglish
Pages (from-to)9862-9867
Number of pages6
JournalRSC Advances
Volume12
Issue number16
DOIs
StatePublished - 25 Mar 2022

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© 2022 The Royal Society of Chemistry

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