Bibliographic Details
| Title: |
Vanadium oxide - poly(3,4-ethylenedioxythiophene) cathodes for zinc-ion batteries: effect of synthesis temperature |
| Authors: |
Filipp S. Volkov, Svetlana N. Eliseeva, Mikhail A. Kamenskii, Alexey I. Volkov, Elena G. Tolstopjatova, Veniamin V. Kondratiev |
| Source: |
Journal of Electrochemical Science and Engineering (2023) |
| Publisher Information: |
International Association of Physical Chemists (IAPC), 2023. |
| Publication Year: |
2023 |
| Collection: |
LCC:Chemistry |
| Subject Terms: |
aqueous zinc-ion battery, hydrothermal synthesis, electrochemical performance, temperature of synthesis, structure, Chemistry, QD1-999 |
| More Details: |
Vanadium oxide composites with conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) were obtained by one-step microwave-assisted hydrothermal synthesis at two different temperatures: 120 and 170 °C (denoted as V-120 and V-170, respectively). The structure and composition of the obtained samples were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) analysis, X-ray photoelectron spectroscopy (XPS), and thermogravimetric (TG) analysis. The detailed study of the electrochemical properties of the composites as cathodes of aqueous zinc-ion battery was performed by cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) at different current densities and by electrochemical impedance spectroscopy (EIS). It was shown that V-120 demonstrated excellent electrochemical performance in the 0.3 to 1.4 V vs. Zn/Zn2+ potential range reaching specific capacities of up to 390 mA∙h∙g−1 at 0.3 A∙g−1 with excellent capacity stability after 1000 charge-discharge cycles. Its functional parameters were found to be much better than those of the electrodes based on the V-170 composite obtained at a higher temperature. The effect of the synthesis temperature on the electrochemical properties is discussed in terms of the crystallographic, compositional, and thermogravimetric properties of the samples. |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
1847-9286 |
| Relation: |
https://pub.iapchem.org/ojs/index.php/JESE/article/view/1595; https://doaj.org/toc/1847-9286 |
| DOI: |
10.5599/jese.1595 |
| Access URL: |
https://doaj.org/article/1f3574b1f3ef40fa81826e19d49856e2 |
| Accession Number: |
edsdoj.1f3574b1f3ef40fa81826e19d49856e2 |
| Database: |
Directory of Open Access Journals |
