TY - JOUR

T1 - Impact of ZnFe2O4 nanoparticles parameters on magnetic and electrochemical performance

AU - Volkov, F.S.

AU - Kamenskii, M.A.

AU - Voskanyan, L.A.

AU - Bobrysheva, N.P.

AU - Osmolovskaya, O.M.

AU - Eliseeva, S.N.

N1 - Export Date: 21 March 2024 Адрес для корреспонденции: Eliseeva, S.N.; Saint Petersburg State University, 7/9 Universitetskaya Emb, Russian Federation; эл. почта: svetlana.eliseeva@spbu.ru Сведения о финансировании: Russian Science Foundation, RSF, 23-23-00245 Текст о финансировании 1: This research was funded by Russian Science Foundation (RSF), grant number 23-23-00245 . The authors would like to thank the Research Park of St. Petersburg State University: Centre for X-ray Diffraction Studies, Centre for Physical Methods of Surface Investigation, Centre for Innovative Technologies of Composite Nanomaterials, Chemical Analysis and Materials Research Centre, Interdisciplinary Resource Centre for Nanotechnology.

PY - 2024/5/1

Y1 - 2024/5/1

N2 - Nanostructured ZnFe2O4 powder with crystallite size from 4 to 55 nm was synthesized via coprecipitation method followed by calcination process carried out at different temperatures. The obtained samples were characterized by XRD, SEM, XPS and ICP-AES methods; magnetic properties at 298 and 77 K were measured and analyzed, the electrochemical behavior of anode materials was tested. The Fe – Zn ratio and oxygen vacancies amount were established. It was found that the magnetization values depend on the crystallite size, and the Fe – Zn ratio determine magnetic performance of the samples in the case of field cooling curves. The sample calcined at 500 °С showed the highest Coulombic efficiency of 76.2 % (at the first cycle) and initial discharge and charge specific capacity of 1400 and 1067 mAh·g−1 at current densities of 0.2 A·g−1. Also, it was demonstrated that the initial capacity depends on oxygen vacancies amount, the highest specific capacity value was for sample with crystallite size 46.9 nm and with a smallest oxygen vacancies amount. © 2024 Acta Materialia Inc.

AB - Nanostructured ZnFe2O4 powder with crystallite size from 4 to 55 nm was synthesized via coprecipitation method followed by calcination process carried out at different temperatures. The obtained samples were characterized by XRD, SEM, XPS and ICP-AES methods; magnetic properties at 298 and 77 K were measured and analyzed, the electrochemical behavior of anode materials was tested. The Fe – Zn ratio and oxygen vacancies amount were established. It was found that the magnetization values depend on the crystallite size, and the Fe – Zn ratio determine magnetic performance of the samples in the case of field cooling curves. The sample calcined at 500 °С showed the highest Coulombic efficiency of 76.2 % (at the first cycle) and initial discharge and charge specific capacity of 1400 and 1067 mAh·g−1 at current densities of 0.2 A·g−1. Also, it was demonstrated that the initial capacity depends on oxygen vacancies amount, the highest specific capacity value was for sample with crystallite size 46.9 nm and with a smallest oxygen vacancies amount. © 2024 Acta Materialia Inc.

KW - Anode materials

KW - Electrochemical performance

KW - Lithium-ion batteries

KW - Magnetization

KW - Oxygen-deficient spinel structure

KW - ZnFe2O4

KW - Anodes

KW - Atomic emission spectroscopy

KW - Calcination

KW - Electric discharges

KW - Iron compounds

KW - Phase diagrams

KW - Zinc compounds

KW - Anode material

KW - Calcinations process

KW - Coprecipitation method

KW - Magnetic performance

KW - Nano-structured

KW - Oxygen deficient

KW - Spinel structure

KW - Synthesised

KW - Crystallite size

UR - https://www.mendeley.com/catalogue/58c1edfd-f7f6-387a-88f4-a750a0adfcef/

U2 - 10.1016/j.mtla.2024.102046

DO - 10.1016/j.mtla.2024.102046

M3 - статья

VL - 34

JO - Materialia

JF - Materialia

SN - 2589-1529

ER -