TY - JOUR

T1 - Vanadium oxide -poly(3,4-ethylenedioxythiophene) cathodes for zinc-ion batteries: effect of synthesis temperature

AU - Volkov, Filipp S.

AU - Eliseeva, Svetlana N.

AU - Kamenskii, Mikhail A.

AU - Volkov, Alexey I.

AU - Tolstopjatova, Elena G.

AU - Kondratiev, Veniamin V.

N1 - Volkov, F. S., Eliseeva, S. N., Kamenskii, M. A., Volkov, A. I., Tolstopjatova, E. G., & Kondratiev, V. V. (2023). Vanadium oxide - poly(3,4-ethylenedioxythiophene) cathodes for zinc-ion batteries: effect of synthesis temperature: Original scientific paper. Journal of Electrochemical Science and Engineering. https://doi.org/10.5599/jese.1595

PY - 2023/3/27

Y1 - 2023/3/27

N2 - 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.

AB - 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.

KW - Aqueous zinc-ion battery

KW - hydrothermal synthesis

KW - temperature of synthesis

KW - electrochemical performance

KW - structure

KW - aqueous zinc-ion battery

KW - hydrothermal synthesis

KW - electrochemical performance

KW - temperature of synthesis

KW - structure

KW - chemical performance

KW - electro-

UR - https://pub.iapchem.org/ojs/index.php/JESE/article/view/1595

UR - https://www.mendeley.com/catalogue/f3869e64-0a66-3859-bb36-bd38c62fc57d/

U2 - 10.5599/jese.1595

DO - 10.5599/jese.1595

M3 - Article

JO - Journal of Electrochemical Science and Engineering

JF - Journal of Electrochemical Science and Engineering

SN - 1847-9286

ER -