Technologies and Engineering

Keywords: graphite; chemical purification; ash content; mineral acids; ammonium fluoride

Development of methods for improving the efficiency of natural graphite chemical purification

Iryna Makyeyeva, Olha Kyslova, Dmytro Patlun, Volodymyr Khomenko, Dmytro Niculin

https://doi.org/10.30857/2786-5371.2024.2.11

Suggested citation

Makyeyeva, I., Kyslova, O., Patlun, D., Khomenko, V., & Niculin, D. (2024). Development of methods for improving the efficiency of natural graphite chemical purification. Technologies and Engineering, 25(2), 117-124. https://doi.org/10.30857/2786-5371.2024.2.11

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• 17.04.2024
• 470 Views
• Technologies and Engineering - Vol. 25, No. 2, 2024

Keywords: electrolysis; copper oxide; photocatalyst; photocatalytic efficiency; degradation; water purification

The photocatalyst based on copper oxides obtained by electrolysis

Iryna Makyeyeva, Maxim Smirnov, Ivan Gaidai

https://doi.org/10.30857/2786-5371.2023.4.8

Suggested citation

Makyeyeva, I., Smirnov, M., & Gaidai, I. (2023). The photocatalyst based on copper oxides obtained by electrolysis. Technologies and Engineering, 24(4), 88-95. https://doi.org/10.30857/2786-5371.2023.4.8

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• 27.09.2023
• 414 Views
• Technologies and Engineering - Vol. 24, No. 4, 2023

Keywords: polymer binders, power sources, resistance, cyclic voltammetry, electrochemical capacitor

Polymeric binders on aqueous and alcohol basis for electrochemical capacitors

Oksana Chernysh, Iryna Makyeyeva, Volodymyr Khomenko, Viacheslav Barsukov

https://doi.org/10.30857/1813-6796.2018.5.9

Suggested citation

Chernysh, O., Makyeyeva, I., Khomenko, V., & Barsukov, V. (2018). Polymeric binders on aqueous and alcohol basis for electrochemical capacitors. Technologies and Engineering, 2018(5), 80-88. https://doi.org/10.30857/1813-6796.2018.5.9

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• 24.10.2018
• 443 Views
• Technologies and Engineering - Vol. 19, No. 5, 2018