Influence of composition of cathodic deposition electrolyte on morphology and capacity properties of MnO2 film
Manganese oxide was obtained by cathodic electrochemical deposition from the electrolyte solutions adding sodium nitrate or sulfate. The structural characteristics and the elemental composition of the MnO2 samples were studied by energy dispersive microanalysis, IR spectroscopy, and transmission ele...
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| Language: | English |
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Saratov State University
2025-06-01
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| Series: | Электрохимическая энергетика |
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| Online Access: | https://energetica.sgu.ru/sites/energetica.sgu.ru/files/text-pdf/2025/06/elektrohimicheskaya_energetika-2025-2-74-86.pdf |
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| author | Chernyavina, Valentina Vladimirovna Dyshlovaya, Yaroslava Aleksandrovna Berezhnaya, Aleksandra Grigor'evna |
| author_facet | Chernyavina, Valentina Vladimirovna Dyshlovaya, Yaroslava Aleksandrovna Berezhnaya, Aleksandra Grigor'evna |
| author_sort | Chernyavina, Valentina Vladimirovna |
| collection | DOAJ |
| description | Manganese oxide was obtained by cathodic electrochemical deposition from the electrolyte solutions adding sodium nitrate or sulfate. The structural characteristics and the elemental composition of the MnO2 samples were studied by energy dispersive microanalysis, IR spectroscopy, and transmission electron microscopy. The electrochemical characteristics of the electrodes were determined by cyclic voltammetry, galvanostatic charge-discharge and impedance spectroscopy in 0.5M Na2SO4 solution. The dependence of the structural and capacitive properties of the MnO2 electrodes on the anion nature in the electrolyte for electrochemical deposition was determined. High capacitance characteristics were obtained for the MnO2 sample deposited from the electrolyte adding sodium sulfate. Its specific capacity was 215 F/g at the scanning speed of 5 mV/s. |
| format | Article |
| id | doaj-art-3ff974558f1a43d4b24fcacb15075bca |
| institution | Kabale University |
| issn | 1608-4039 1680-9505 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Saratov State University |
| record_format | Article |
| series | Электрохимическая энергетика |
| spelling | doaj-art-3ff974558f1a43d4b24fcacb15075bca2025-08-20T03:27:57ZengSaratov State UniversityЭлектрохимическая энергетика1608-40391680-95052025-06-01252748610.18500/1608-4039-2025-25-2-74-86Influence of composition of cathodic deposition electrolyte on morphology and capacity properties of MnO2 filmChernyavina, Valentina Vladimirovna0Dyshlovaya, Yaroslava Aleksandrovna1Berezhnaya, Aleksandra Grigor'evna2Southern Federal University, 7 Zorge St., Rostov-on-Don 344090, RussiaSouthern Federal University, 7 Zorge St., Rostov-on-Don 344090, RussiaSouthern Federal University, 7 Zorge St., Rostov-on-Don 344090, RussiaManganese oxide was obtained by cathodic electrochemical deposition from the electrolyte solutions adding sodium nitrate or sulfate. The structural characteristics and the elemental composition of the MnO2 samples were studied by energy dispersive microanalysis, IR spectroscopy, and transmission electron microscopy. The electrochemical characteristics of the electrodes were determined by cyclic voltammetry, galvanostatic charge-discharge and impedance spectroscopy in 0.5M Na2SO4 solution. The dependence of the structural and capacitive properties of the MnO2 electrodes on the anion nature in the electrolyte for electrochemical deposition was determined. High capacitance characteristics were obtained for the MnO2 sample deposited from the electrolyte adding sodium sulfate. Its specific capacity was 215 F/g at the scanning speed of 5 mV/s.https://energetica.sgu.ru/sites/energetica.sgu.ru/files/text-pdf/2025/06/elektrohimicheskaya_energetika-2025-2-74-86.pdfelectrochemical capacitoraqueous neutral electrolytemanganese dioxidespecific capacity |
| spellingShingle | Chernyavina, Valentina Vladimirovna Dyshlovaya, Yaroslava Aleksandrovna Berezhnaya, Aleksandra Grigor'evna Influence of composition of cathodic deposition electrolyte on morphology and capacity properties of MnO2 film Электрохимическая энергетика electrochemical capacitor aqueous neutral electrolyte manganese dioxide specific capacity |
| title | Influence of composition of cathodic deposition electrolyte on morphology and capacity properties of MnO2 film |
| title_full | Influence of composition of cathodic deposition electrolyte on morphology and capacity properties of MnO2 film |
| title_fullStr | Influence of composition of cathodic deposition electrolyte on morphology and capacity properties of MnO2 film |
| title_full_unstemmed | Influence of composition of cathodic deposition electrolyte on morphology and capacity properties of MnO2 film |
| title_short | Influence of composition of cathodic deposition electrolyte on morphology and capacity properties of MnO2 film |
| title_sort | influence of composition of cathodic deposition electrolyte on morphology and capacity properties of mno2 film |
| topic | electrochemical capacitor aqueous neutral electrolyte manganese dioxide specific capacity |
| url | https://energetica.sgu.ru/sites/energetica.sgu.ru/files/text-pdf/2025/06/elektrohimicheskaya_energetika-2025-2-74-86.pdf |
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