Research output: Contribution to journal › Article › peer-review
Synthesis and Electrochemical Research of the Properties of Mixed Nickel-Cobalt Oxides as Materials for Energy Storage Devices. / Volkov, A. I.; Zhuzhel’skii, D. V.; Tolstopyatova, E. G.; Kondratiev, V. V.
In: Russian Journal of Applied Chemistry, Vol. 93, No. 12, 12.2020, p. 1837-1844.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Synthesis and Electrochemical Research of the Properties of Mixed Nickel-Cobalt Oxides as Materials for Energy Storage Devices
AU - Volkov, A. I.
AU - Zhuzhel’skii, D. V.
AU - Tolstopyatova, E. G.
AU - Kondratiev, V. V.
N1 - Funding Information: This work was carried out with the financial support of St. Petersburg State University (grant no. 26455158).
PY - 2020/12
Y1 - 2020/12
N2 - Mixed nickel-cobalt oxide was prepared by hydrothermal synthesis. Evaluation of the morphology and structure of the produced oxide using scanning electron microscopy and X-ray structural analysis reevaled spinel NiCo2O4 formed spherical nanostructures. Electrodes were prepared from composite materials based on nickel-cobalt mixed oxides, polyvinylidene fluoride binder, and carbon black, applied to nickel foam by various methods. Electrochemical studies of electrodes in aqueous alkaline solutions were carried out by the cyclic voltammetry. The obtained values of the specific capacity of the material in charge-discharge cycling reach 840 F/g at 5 mV/s. The best value of the capacity retention of the produced materials was 87% for 100 cycles.
AB - Mixed nickel-cobalt oxide was prepared by hydrothermal synthesis. Evaluation of the morphology and structure of the produced oxide using scanning electron microscopy and X-ray structural analysis reevaled spinel NiCo2O4 formed spherical nanostructures. Electrodes were prepared from composite materials based on nickel-cobalt mixed oxides, polyvinylidene fluoride binder, and carbon black, applied to nickel foam by various methods. Electrochemical studies of electrodes in aqueous alkaline solutions were carried out by the cyclic voltammetry. The obtained values of the specific capacity of the material in charge-discharge cycling reach 840 F/g at 5 mV/s. The best value of the capacity retention of the produced materials was 87% for 100 cycles.
KW - hydrothermal synthesis
KW - mixed nickel-cobalt oxides
KW - morphology
KW - specific capacity
UR - http://www.scopus.com/inward/record.url?scp=85101737352&partnerID=8YFLogxK
U2 - 10.1134/S1070427220120058
DO - 10.1134/S1070427220120058
M3 - Article
AN - SCOPUS:85101737352
VL - 93
SP - 1837
EP - 1844
JO - Russian Journal of Applied Chemistry
JF - Russian Journal of Applied Chemistry
SN - 1070-4272
IS - 12
ER -
ID: 85823937