Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102922
Title: Novel synthesis and electrochemical investigations of ZnO/C composites for lithium-ion batteries
Authors: Thauer, E.
Zakharova, G. S.
Andreikov, E. I.
Adam, V.
Wegener, S. A.
Nölke, J. -H.
Singer, L.
Ottmann, A.
Asyuda, A.
Zharnikov, M.
Kiselkov, D. M.
Zhu, Q.
Puzyrev, I. S.
Podval’naya, N. V.
Klingeler, R.
Issue Date: 2021
Publisher: Springer
Citation: Novel synthesis and electrochemical investigations of ZnO/C composites for lithium-ion batteries / E. Thauer, G. S. Zakharova, E. I. Andreikov, et al. — DOI 10.1007/s10853-021-06125-4 // Journal of Materials Science. — 2021. — Vol. 56. — Iss. 23. — P. 13227-13242.
Abstract: For the first time, ZnO/C composites were synthesized using zinc glycerolate as a precursor through one-step calcination under a nitrogen atmosphere. The effect of the heat treatment conditions on the structure, composition, morphology as well as on the electrochemical properties regarding application in lithium-ion batteries are investigated. The products obtained by calcination of the precursor in nitrogen at 400—800 °C consist of zinc oxide nanoparticles and amorphous carbon that is in-situ generated from organic components of the glycerolate precursor. When used as anode material for lithium-ion batteries, the as-prepared ZnO/C composite synthesized at a calcination temperature of 700 °C delivers initial discharge and charge capacities of 1061 and 671 mAh g−1 at a current rate of 100 mA g−1 and hence 1.5 times more than bare ZnO, which reaches only 749/439 mAh g−1. The native carbon improves the conductivity, allowing efficient electronic conductivity and Li-ion diffusion. By means of ex-situ XRD studies a two-step storage mechanism is proven. © 2021, The Author(s).
Keywords: AMORPHOUS CARBON
ANODES
CALCINATION
ELECTRIC DISCHARGES
HEAT TREATMENT
II-VI SEMICONDUCTORS
IONS
NITROGEN
OXIDE MINERALS
ZINC OXIDE
ZNO NANOPARTICLES
ANODE MATERIAL FOR LITHIUM ION BATTERIES
CALCINATION TEMPERATURE
ELECTROCHEMICAL INVESTIGATIONS
ELECTRONIC CONDUCTIVITY
HEAT TREATMENT CONDITIONS
NITROGEN ATMOSPHERES
ORGANIC COMPONENTS
ZINC OXIDE NANOPARTICLES
LITHIUM-ION BATTERIES
URI: http://hdl.handle.net/10995/102922
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85105630780
PURE ID: 21883388
ISSN: 222461
DOI: 10.1007/s10853-021-06125-4
metadata.dc.description.sponsorship: This work was supported by the Deutsche Forschungsgemeinschaft through projects KL1824/12-1 and KL 1824/14-1. G.Z. acknowledges support of the state order via the Ministry of Science and Higher Education of Russia (No AAAA-A19-119031890025-9). E.T. acknowledges support by the BMWi through project 03ET6095C (HiKoMat). The authors thank I. Glass for experimental support.
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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