Vanadium Oxide-Poly(3,4-ethylenedioxythiophene) Nanocomposite as High-Performance Cathode for Aqueous Zn-Ion Batteries: The Structural and Electrochemical Characterization
In this work the nanocomposite of vanadium oxide with conducting polymer poly(3,4-ethylenedioxythiophene) (VO@PEDOT) was obtained by microwave-assisted hydrothermal synthesis. The detailed study of its structural and electrochemical properties as cathode of aqueous zinc-ion battery was performed by...
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MDPI AG
2022-11-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/21/3896 |
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| author | Filipp S. Volkov Svetlana N. Eliseeva Mikhail A. Kamenskii Alexey I. Volkov Elena G. Tolstopjatova Oleg V. Glumov Lijun Fu Veniamin V. Kondratiev |
| author_facet | Filipp S. Volkov Svetlana N. Eliseeva Mikhail A. Kamenskii Alexey I. Volkov Elena G. Tolstopjatova Oleg V. Glumov Lijun Fu Veniamin V. Kondratiev |
| author_sort | Filipp S. Volkov |
| collection | DOAJ |
| description | In this work the nanocomposite of vanadium oxide with conducting polymer poly(3,4-ethylenedioxythiophene) (VO@PEDOT) was obtained by microwave-assisted hydrothermal synthesis. The detailed study of its structural and electrochemical properties as cathode of aqueous zinc-ion battery was performed by scanning electron microscopy, energy dispersive X-ray analysis, X-ray diffraction analysis, X-ray photoelectron spectroscopy, thermogravimetric analysis, cyclic voltammetry, galvanostatic charge–discharge, and electrochemical impedance spectroscopy. The initial VO@PEDOT composite has layered nanosheets structure with thickness of about 30–80 nm, which are assembled into wavy agglomerated thicker layers of up to 0.3–0.6 μm. The phase composition of the samples was determined by XRD analysis which confirmed lamellar structure of vanadium oxide V<sub>10</sub>O<sub>24</sub>∙12H<sub>2</sub>O with interlayer distance of about 13.6 Å. The VO@PEDOT composite demonstrates excellent electrochemical performance, reaching specific capacities of up to 390 mA∙h∙g<sup>−1</sup> at 0.3 A∙g<sup>−1</sup>. Moreover, the electrodes retain specific capacity of 100 mA∙h∙g<sup>−1</sup> at a high current density of 20 A∙g<sup>−1</sup>. The phase transformations of VO@PEDOT electrodes during the cycling were studied at different degrees of charge/discharge by using ex situ XRD measurements. The results of ex situ XRD allow us to conclude that the reversible zinc ion intercalation occurs in stable zinc pyrovanadate structures formed during discharge. |
| first_indexed | 2024-03-09T18:46:55Z |
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| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-09T18:46:55Z |
| publishDate | 2022-11-01 |
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| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-579ca318cf8e4e5198975132714acd7b2023-11-24T06:10:58ZengMDPI AGNanomaterials2079-49912022-11-011221389610.3390/nano12213896Vanadium Oxide-Poly(3,4-ethylenedioxythiophene) Nanocomposite as High-Performance Cathode for Aqueous Zn-Ion Batteries: The Structural and Electrochemical CharacterizationFilipp S. Volkov0Svetlana N. Eliseeva1Mikhail A. Kamenskii2Alexey I. Volkov3Elena G. Tolstopjatova4Oleg V. Glumov5Lijun Fu6Veniamin V. Kondratiev7Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Nab, 199034 Saint Petersburg, RussiaInstitute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Nab, 199034 Saint Petersburg, RussiaInstitute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Nab, 199034 Saint Petersburg, RussiaInstitute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Nab, 199034 Saint Petersburg, RussiaInstitute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Nab, 199034 Saint Petersburg, RussiaInstitute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Nab, 199034 Saint Petersburg, RussiaState Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816, ChinaInstitute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Nab, 199034 Saint Petersburg, RussiaIn this work the nanocomposite of vanadium oxide with conducting polymer poly(3,4-ethylenedioxythiophene) (VO@PEDOT) was obtained by microwave-assisted hydrothermal synthesis. The detailed study of its structural and electrochemical properties as cathode of aqueous zinc-ion battery was performed by scanning electron microscopy, energy dispersive X-ray analysis, X-ray diffraction analysis, X-ray photoelectron spectroscopy, thermogravimetric analysis, cyclic voltammetry, galvanostatic charge–discharge, and electrochemical impedance spectroscopy. The initial VO@PEDOT composite has layered nanosheets structure with thickness of about 30–80 nm, which are assembled into wavy agglomerated thicker layers of up to 0.3–0.6 μm. The phase composition of the samples was determined by XRD analysis which confirmed lamellar structure of vanadium oxide V<sub>10</sub>O<sub>24</sub>∙12H<sub>2</sub>O with interlayer distance of about 13.6 Å. The VO@PEDOT composite demonstrates excellent electrochemical performance, reaching specific capacities of up to 390 mA∙h∙g<sup>−1</sup> at 0.3 A∙g<sup>−1</sup>. Moreover, the electrodes retain specific capacity of 100 mA∙h∙g<sup>−1</sup> at a high current density of 20 A∙g<sup>−1</sup>. The phase transformations of VO@PEDOT electrodes during the cycling were studied at different degrees of charge/discharge by using ex situ XRD measurements. The results of ex situ XRD allow us to conclude that the reversible zinc ion intercalation occurs in stable zinc pyrovanadate structures formed during discharge.https://www.mdpi.com/2079-4991/12/21/3896aqueous zinc-ion batteryvanadium oxidecathodepoly(3,4-ethylenedioxythiophene)compositeenergy storage |
| spellingShingle | Filipp S. Volkov Svetlana N. Eliseeva Mikhail A. Kamenskii Alexey I. Volkov Elena G. Tolstopjatova Oleg V. Glumov Lijun Fu Veniamin V. Kondratiev Vanadium Oxide-Poly(3,4-ethylenedioxythiophene) Nanocomposite as High-Performance Cathode for Aqueous Zn-Ion Batteries: The Structural and Electrochemical Characterization Nanomaterials aqueous zinc-ion battery vanadium oxide cathode poly(3,4-ethylenedioxythiophene) composite energy storage |
| title | Vanadium Oxide-Poly(3,4-ethylenedioxythiophene) Nanocomposite as High-Performance Cathode for Aqueous Zn-Ion Batteries: The Structural and Electrochemical Characterization |
| title_full | Vanadium Oxide-Poly(3,4-ethylenedioxythiophene) Nanocomposite as High-Performance Cathode for Aqueous Zn-Ion Batteries: The Structural and Electrochemical Characterization |
| title_fullStr | Vanadium Oxide-Poly(3,4-ethylenedioxythiophene) Nanocomposite as High-Performance Cathode for Aqueous Zn-Ion Batteries: The Structural and Electrochemical Characterization |
| title_full_unstemmed | Vanadium Oxide-Poly(3,4-ethylenedioxythiophene) Nanocomposite as High-Performance Cathode for Aqueous Zn-Ion Batteries: The Structural and Electrochemical Characterization |
| title_short | Vanadium Oxide-Poly(3,4-ethylenedioxythiophene) Nanocomposite as High-Performance Cathode for Aqueous Zn-Ion Batteries: The Structural and Electrochemical Characterization |
| title_sort | vanadium oxide poly 3 4 ethylenedioxythiophene nanocomposite as high performance cathode for aqueous zn ion batteries the structural and electrochemical characterization |
| topic | aqueous zinc-ion battery vanadium oxide cathode poly(3,4-ethylenedioxythiophene) composite energy storage |
| url | https://www.mdpi.com/2079-4991/12/21/3896 |
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