New nanoporous biocarbons with iron and silicon impurities: Synthesis, properties, and application to supercapacitors

Shvets, R. Ya.; Grygorchak, I. I.; Borysyuk, A. K.; Shvachko, S. G.; Kondyr, A. I.; Baluk, V. I.; Kurepa, A. S.; Rachiy, B. I.

doi:10.1134/s1063783414100266

Cited by 11 publications

(2 citation statements)

References 20 publications

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“…The most common material for the production of EC electrodes is carbon material (CM) [3]. The advantages of CMs are low cost, ease of manufacture and versatility of existing forms (foam, powders, composites, monoliths, foils).…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Properties of Hybrid Supercapacitors Formed Based on Nanoporous Carbon and Nickel Tungstate

Starchuk¹,

Rachiy²,

Budzulyak³

et al. 2021

J. Nano- Electron. Phys.

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In this work, the morphology of carbon material (CM) has been researched by the nitrogen adsorption/ desorption method. Furthermore, it was determined that the specific surface area is about 1200-1300 m 2 /g. NiWO4 was synthesized by co-precipitation method, and its structure was investigated by XRD. Additionally, the electrochemical properties of CM and NiWO4 were studied by the methods of chronoamperometry and voltammetry, and the use of these materials as electrodes of hybrid supercapacitors (HSC) -anode and cathode, respectively, was tested. A hybrid electrochemical system of the CM/KOH/NiWO4 type was formed. The use of this system makes it possible to increase the operating voltage range of HSC based on aqueous electrolytes from 0-1 V to 0.6-1.6 V, and, consequently, to increase the energy characteristics of a unit cell by more than 2 times. It is shown that at operating currents of 1 mA, the specific capacity of the HSC is 57.1 F/g, while the specific energy density and power are 7.09 Wh/kg and 1.39 W/kg, respectively.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Properties of Hybrid Supercapacitors Formed Based on Nanoporous Carbon and Nickel Tungstate

Starchuk¹,

Rachiy²,

Budzulyak³

et al. 2021

J. Nano- Electron. Phys.

Self Cite

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“…The first mechanism is carried out due to the redox reaction on the electrode surface by the ionic intercalation / deintercalation process [3]. The second mechanism is characterized by the formation of a double electric layer at the interface between the electrode material and the electrolyte [4]. Increasing the capacity and stability of the charge-discharge cycle are the main reasons for finding new electrode materials for both EC and HEC [5].…”

Section: Introductionmentioning

confidence: 99%

Mechanisms of charge accumulation of the electrochemical system LaMnO3 / AC

Kolkovska

Rachiy

Kolkovskyi

et al. 2021

Phys. Chem. Solid St.

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In this work, the electrochemical behavior of LaMnO3 perovskite material and nanoporous carbon material in an aqueous solution of lithium sulfate are studied. The regularities of the expediency of the joint functioning of these materials as electrodes for a hybrid electrochemical capacitor are determined. It was found that the value of the specific capacity of the investigated electrochemical system of LaMnO3 / electrolyte / AC is 52 F/g during the discharge of the system to 1 V and the value of specific energy is 112.1 J /g at a discharge current of 1 mA.

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Nanoarchitectonics and electrochemical properties of chromium-doped supramolecular carbon material

et al. 2022

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New nanoporous biocarbons with iron and silicon impurities: Synthesis, properties, and application to supercapacitors

Cited by 11 publications

References 20 publications

Electrochemical Properties of Hybrid Supercapacitors Formed Based on Nanoporous Carbon and Nickel Tungstate

Electrochemical Properties of Hybrid Supercapacitors Formed Based on Nanoporous Carbon and Nickel Tungstate

Mechanisms of charge accumulation of the electrochemical system LaMnO3 / AC

Nanoarchitectonics and electrochemical properties of chromium-doped supramolecular carbon material

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