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

doi:10.1039/d2ra00617k

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

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

2 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 language	English
Pages (from-to)	9862-9867
Number of pages	6
Journal	RSC Advances
Volume	12
Issue number	16
DOIs	https://doi.org/10.1039/d2ra00617k
State	Published - 25 Mar 2022

Bibliographical note

Publisher Copyright:
© 2022 The Royal Society of Chemistry

Funding

This research has been funded by the Science Committee of the Ministry of Education and Science of the Republic of Kazakhstan (Grant No. AP09563217). Special thanks to Ivan Trussov for his valuable help in the XRD data description and to Olzhas Kaupbay for help in the electrochemical experiments.

Funders	Funder number
Ministry of Education and Science of the Republic of Kazakhstan	AP09563217

Access to Document

10.1039/d2ra00617k

Cite this

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

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.",

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AU - Malchik, Fyodor

AU - Maldybayev, Kaiyrgali

AU - Kan, Tatyana

AU - Kokhmetova, Saule

AU - Kurbatov, Andrey

AU - Galeyeva, Alina

AU - Tubul, Nufar

AU - Shpigel, Netanel

AU - Djenizian, Thierry

PY - 2022/3/25

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AB - 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.

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