Journal article
Formation kinetics of sol-gel derived LiFePO4 olivine analyzed by reliable non-isothermal approach
Ceramics International, Vol.48(12), pp.17729-17737
2022
Abstract
The formation kinetics of LiFePO4 Olivine synthesized through sol-gel route has been studied by non-isothermal approach. LiFePO4 precursors were prepared by mixing lithium dihydrogen phosphate (LiH2PO4) and iron (III) citrate (C6H5FeO7) and subsequently calcined in an Argon atmosphere at temperatures ranged from of 300–900 °C to form LiFePO4 products. Thermal behaviors of calcination process were analyzed by thermogravimetry (TGA) and differential scanning calorimetry (DSC) simultaneously, while the mineralogical properties of LiFePO4 were characterized using X-ray diffractometer (XRD). The kinetic parameters were determined by Ozawa–Flynn–Wall (OFW), Kissinger, and Kissinger-Akahira-Sunose (KAS) methods, and the reaction mechanism model was evaluated by Coats–Redfern approach. The results indicated that the reaction model of LiFePO4 formation agreed with the three-dimensional diffusion mechanism. The temperature had an essential role in the synthesis of LiFePO4. The optimum calcination temperature was 700 °C where this condition produced LiFePO4 Olivine with high degree of crystallinity, better lattice parameters and phase purity.
Details
- Title
- Formation kinetics of sol-gel derived LiFePO4 olivine analyzed by reliable non-isothermal approach
- Authors/Creators
- A. Amri (Author/Creator) - Riau UniversityY.B. Hendri (Author/Creator) - Riau UniversityE. Saputra (Author/Creator) - Riau UniversityD. Heltina (Author/Creator) - Riau UniversityC-Y Yin (Author/Creator) - Newcastle UniversityM.M. Rahman (Author/Creator) - Jahangirnagar UniversityM. Minakshi (Author/Creator) - Murdoch UniversityN. Mondinos (Author/Creator) - Murdoch UniversityZ-T Jiang (Author/Creator) - Murdoch University
- Publication Details
- Ceramics International, Vol.48(12), pp.17729-17737
- Publisher
- Elsevier Ltd
- Identifiers
- 991005545092907891
- Copyright
- © 2022 Elsevier Ltd and Techna Group S.r.l.
- Murdoch Affiliation
- School of Mathematics, Statistics, Chemistry and Physics
- Language
- English
- Resource Type
- Journal article
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- Citation topics
- 2 Chemistry
- 2.62 Electrochemistry
- 2.62.138 Lithium-Ion Battery
- Web Of Science research areas
- Materials Science, Ceramics
- ESI research areas
- Materials Science