TY - JOUR
T1 - Employing Na2CO3 and NaCl as sources of sodium in NaFePO4 cathode
T2 - A comparative study on structure and electrochemical properties
AU - Astuti, Fahmi
AU - Azmi, Rima Feisy
AU - Azhar, Mohammad Arrafi
AU - Rayanisaputri, Fani Rahayu Hidayah
AU - Ramadhan, Muhammad Redo
AU - Baqiya, Malik Anjelh
AU - Darminto,
N1 - Publisher Copyright:
© 2024 the Author(s), licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)
PY - 2024
Y1 - 2024
N2 - Encouraged by the tremendous success of lithium iron phosphate (LiFePO4), analogous NaFePO4 has been predicted to show identical properties as LiFePO4. Synthesis of NaFePO4 materials in the maricite phase has been carried out using the sol-gel method with variations of calcination temperature and starting materials as sources of sodium Na2CO3 and NaCl. The resulted NaFePO4 maricite phase with the purity between 40% and 85%, according to X-ray diffractometry (XRD) characterization was obtained. The morphology and grain size of the particles in samples, as observed by a scanning electron microscope (SEM), tend to enlarge upon calcination at higher temperatures. The increment of calcination temperature increases the NaFePO4 maricite phase content in the sample. The impedance data analysis shows that the diffusion coefficient of Na+ ions and the electrical conductivity of a sample using Na2CO3 is higher than that of NaCl. This comprehensive study provides a feasible method and opens new opportunities for the continuous study of Na-ion batteries.
AB - Encouraged by the tremendous success of lithium iron phosphate (LiFePO4), analogous NaFePO4 has been predicted to show identical properties as LiFePO4. Synthesis of NaFePO4 materials in the maricite phase has been carried out using the sol-gel method with variations of calcination temperature and starting materials as sources of sodium Na2CO3 and NaCl. The resulted NaFePO4 maricite phase with the purity between 40% and 85%, according to X-ray diffractometry (XRD) characterization was obtained. The morphology and grain size of the particles in samples, as observed by a scanning electron microscope (SEM), tend to enlarge upon calcination at higher temperatures. The increment of calcination temperature increases the NaFePO4 maricite phase content in the sample. The impedance data analysis shows that the diffusion coefficient of Na+ ions and the electrical conductivity of a sample using Na2CO3 is higher than that of NaCl. This comprehensive study provides a feasible method and opens new opportunities for the continuous study of Na-ion batteries.
KW - battery
KW - calcination
KW - diffusion coefficient
KW - morphology
KW - sodium
UR - http://www.scopus.com/inward/record.url?scp=85192970343&partnerID=8YFLogxK
U2 - 10.3934/MATERSCI.2024006
DO - 10.3934/MATERSCI.2024006
M3 - Article
AN - SCOPUS:85192970343
SN - 2372-0484
VL - 11
SP - 102
EP - 113
JO - AIMS Materials Science
JF - AIMS Materials Science
IS - 1
ER -