Unveiling Potential of Gallium Ferrite (GaFeO 3 ) as an Anode Material for Lithium-Ion Batteries.

Autor: Bhattarai MK; Department of Physics, University of Puerto Rico, San Juan, Puerto Rico 00931, United States., Shweta S; Department of Physics, University of Puerto Rico, San Juan, Puerto Rico 00931, United States., Ashie MD; Department of Chemistry, North Carolina A&T State University, 1601 East Market Street, Greensboro, North Carolina 27411, United States., Guddehalli Chandrappa S; Department of Physics, University of Puerto Rico, San Juan, Puerto Rico 00931, United States., Ale Magar B; Department of Chemical Engineering, University of Puerto Rico, Mayagüez, Puerto Rico 00681, United States., Bastakoti BP; Department of Chemistry, North Carolina A&T State University, 1601 East Market Street, Greensboro, North Carolina 27411, United States., Córdova Figueroa UM; Department of Chemical Engineering, University of Puerto Rico, Mayagüez, Puerto Rico 00681, United States., Katiyar RS; Department of Physics, University of Puerto Rico, San Juan, Puerto Rico 00931, United States., Weiner BR; Department of Chemistry, University of Puerto Rico, San Juan, Puerto Rico 00931, United States., Morell G; Department of Physics, University of Puerto Rico, San Juan, Puerto Rico 00931, United States.
Jazyk: angličtina
Zdroj: ACS omega [ACS Omega] 2024 Sep 13; Vol. 9 (38), pp. 39863-39872. Date of Electronic Publication: 2024 Sep 13 (Print Publication: 2024).
DOI: 10.1021/acsomega.4c05437
Abstrakt: Lithium-ion batteries (LIBs) serve as the backbone of modern technologies with ongoing efforts to enhance their performance and sustainability driving the exploration of new electrode materials. This study introduces a new type of alloy-conversion-based gallium ferrite (GFO: GaFeO 3 ) as a potential anode material for Li-ion battery applications. The GFO was synthesized by a one-step mechanochemistry-assisted solid-state method. The powder X-ray diffraction analysis confirms the presence of an orthorhombic phase with the Pc 2 1 n space group. The photoelectron spectroscopy studies reveal the presence of Ga 3+ and Fe 3+ oxidation states of gallium and iron atoms in the GFO structure. The GFO was evaluated as an anode material for Li-ion battery applications, displaying a high discharge capacity of ∼887 mA h g -1 and retaining a stable capacity of ∼200 mA h g -1 over 450 cycles, with a Coulombic efficiency of 99.6 % at a current density of 100 mA g -1 . Cyclic voltammetry studies confirm an alloy-conversion-based reaction mechanism in the GFO anode. Furthermore, density functional theory studies reveal the reaction mechanism during cycling and Li-ion diffusion pathways in the GFO anode. These results strongly suggest that the GFO could be an alternative anode material in LIBs.
Competing Interests: The authors declare no competing financial interest.
(© 2024 The Authors. Published by American Chemical Society.)
Databáze: MEDLINE
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