Effect of synthesis environment on the electrochemical properties of (FeMnCrCoZn)(3)O-4 high-entropy oxides for Li-ion batteries

Date

2022-09-01

Author

Bayraktar, Deniz Okan
LÖKÇÜ, ERSU
Özgür, Çağla
Erdil, Tuncay
Toparlı, Çiğdem

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High-entropy oxides (HEOs) have gained significant attention from lithium-ion batteries since they can present cycling stability and possess a high specific capacity. While many studies have focused on discovering new high entropy oxides by changing their components, the influence of the synthesis environment on the structural properties and thus electrochemical behavior remain unresolved. Herein, we studied the effect of the synthesis environment, which is argon and air on the structural and electrochemical properties of (FeMnCrCoZn)(3)O-4 powders. We observed that the synthesis atmosphere affects greatly oxygen vacancy formation. The sample synthesized under an argon atmosphere (HESO-Ar) shows enhanced cycling and rate performances. Our work can open up new opportunities in designing HEO-based anodes and utilizing other HEO-based functional materials by altering and controlling the synthesis environment.

Subject Keywords

conversion anode, high entropy oxide, Li-ion battery, oxygen vacancy, ANODE MATERIAL, NANOPARTICLES, MG

URI

https://hdl.handle.net/11511/99126

Journal

INTERNATIONAL JOURNAL OF ENERGY RESEARCH

DOI

https://doi.org/10.1002/er.8749

Collections

Department of Metallurgical and Materials Engineering, Article

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Citation Formats

D. O. Bayraktar, E. LÖKÇÜ, Ç. Özgür, T. Erdil, and Ç. Toparlı, “Effect of synthesis environment on the electrochemical properties of (FeMnCrCoZn)(3)O-4 high-entropy oxides for Li-ion batteries,” INTERNATIONAL JOURNAL OF ENERGY RESEARCH, pp. 0–0, 2022, Accessed: 00, 2022. [Online]. Available: https://hdl.handle.net/11511/99126.