Calcination Temperature Effect on Characteristic Properties of Na2/3[Fe1/2Mn1/2]O2 Synthesized by Sol-Gel Reaction

Puspitasari, Diah Agustina
Supriyono, Supriyono
Kartikowati, Christina Wahyu
Fauziyah, Mar’atul
Gapsari, Femiana
Pratiwi, Vania Mitha
H Br Butar-Butar, Devina Annora
Marisa D.N, Ira
Maghfiroh, Rashieka Putri
Prasetia, Yudha Bhakti
Adi I. R, Rivanda
Aqil H, Irginata
Rajabi, Roihan
Abdul, Umar Khalid Zaki

Equilibrium Journal of Chemical Engineering
Vol 8, No 1 (2024): Volume 8, No 1 July 2024

Abstract. Recently, Na2/3[Fe1/2Mn1/2]O2 has received attention as a potential candidate material for cathode sodium-ion batteries. However, this material was synthesized by a solid-state process, resulting in larger particle size and nonuniform morphology. The larger particle size will sluggish the Na ion diffusion. Here we report the synthesis of Na2/3[Fe1/2Mn1/2]O2 using a simple sol-gel process. The X-ray diffraction revealed that the sample was identified as Na2/3[Fe1/2Mn1/2]O2 with a hexagonal crystal structure. However, the impurities are formed at diffraction angles of 36.28°, 45.03°, and 51.23°. Calcination temperature affects the formation of the crystal phase, grain growth, morphology, and particle size. Our findings provide valuable insight into the development of Na2/3[Fe1/2Mn1/2]O2  material with desirable properties. Keywords:Sol-Gel, Solid State, Grain Growth, Calcination, Na2/3[Fe1/2Mn1/2]O2