Селективный синтез полиморфных модификаций диоксида марганца гидротермальной обработкой водных растворов KMnO
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Egorova, A. A.; Бушкова, Т. М.; Kolesnik, Irina V.; Япрынцев, А. Д.; Котцов, С. Ю.; Баранчиков, А. Е.

doi:10.31857/s0044457x21020069

Ж. неорган. химии

2021

DOI: 10.31857/s0044457x21020069

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Селективный синтез полиморфных модификаций диоксида марганца гидротермальной обработкой водных растворов KMnO ₄

A. A. Egorova¹,

Т. М. Бушкова²,

Irina V. Kolesnik³

et al.

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The Influence of the Synhtetic Way of Layered-Type Mangansese Dioxide on the Properties of Cathode Materials for Aqueous Zinc-Ion Batteries

Kamenskii,

Popov,

Eliseeva

et al. 2023

Èlektrohimiâ

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This research presents an analysis of physico-chemical, structural and electrochemical properties of cathode materials for aqueous zinc-ion batteries based on manganese dioxide with birnessite-type structure in dependence on the conditions of hydrothermal synthesis. The manganese oxides obtained are capable to the reversible zin ions intercalation into the crystal lattice because of large interlayer distances. They were considered two approaches of synthesis: a reaction between manganese sulfate and potassium permanganate at 160 °С (MnO2-I) and a hydrothermal treatment of potassium permanganate solution at 220 °С (MnO2-II). From the structural analysis it was shown that both methods allow obtaining the birnessite-type manganese dioxide. At the same time, electrochemical properties of cathodes obtained differ in the models of aqueous zinc-ion batteries. MnO2-II material demonstrate higher initial specific capacity (180 mAh∙g-1 at current density 0.3 A∙g-1) while its cyclic stability is on 40% lower than for MnO2-I material. This can be explained with higher surface area of the active material and lower crystallinity.

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The Influence of the Synhtetic Way of Layered-Type Mangansese Dioxide on the Properties of Cathode Materials for Aqueous Zinc-Ion Batteries

Kamenskii,

Popov,

Eliseeva

et al. 2023

Èlektrohimiâ

View full text Add to dashboard Cite

show abstract

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Селективный синтез полиморфных модификаций диоксида марганца гидротермальной обработкой водных растворов KMnO ₄

Cited by 1 publication

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The Influence of the Synhtetic Way of Layered-Type Mangansese Dioxide on the Properties of Cathode Materials for Aqueous Zinc-Ion Batteries

The Influence of the Synhtetic Way of Layered-Type Mangansese Dioxide on the Properties of Cathode Materials for Aqueous Zinc-Ion Batteries

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Селективный синтез полиморфных модификаций диоксида марганца гидротермальной обработкой водных растворов KMnO 4

Cited by 1 publication

References 0 publications

The Influence of the Synhtetic Way of Layered-Type Mangansese Dioxide on the Properties of Cathode Materials for Aqueous Zinc-Ion Batteries

The Influence of the Synhtetic Way of Layered-Type Mangansese Dioxide on the Properties of Cathode Materials for Aqueous Zinc-Ion Batteries

Contact Info

Product

Resources

About

Селективный синтез полиморфных модификаций диоксида марганца гидротермальной обработкой водных растворов KMnO ₄