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Journal > Jurnal Sains Materi Indonesia > REACTION KINETIC ANALYSIS OF SYNTESIZED LiFePO4 USING KISSINGER METHOD

 

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Jurnal Sains Materi Indonesia
Vol 13, No 2 (2012): Februari 2012
REACTION KINETIC ANALYSIS OF SYNTESIZED LiFePO4 USING KISSINGER METHOD
Gunawan, Indra ( Pusat Teknologi Bahan Industri Nuklir (PTBIN)-BATAN Kawasan Puspiptek Serpong 15314, Tangerang)
Article Info   ABSTRACT
Published date:
20 Nov 2013
 
The reaction kinetic analyses of synthesized LiFePO4 have been done using Kissinger method. LiFePO4 was prepared by mixing equimolar amount of LiCl, FeCl2.4H2O and H3PO4 in distilled water solution. Solution homogenization was achived by magnetic stirring and heating at 60 ºC. LiFePO4 precursor obtained after heat treatment at 200 ºC for 2 hours. LiFePO4 precursor was then analysized by using Differential Thermal Analysis (DTA) at heating rate of 5, 10, 15 and 20 ºC min-1 respectively. LiFePO4 powder was obtained after heating at 700 ºC for 4 hours, then the X-Ray Diffactometer (XRD) analysis was done to confirm phase purity and crystalline structure, meanwhile morphology observation was done by using Scanning Electron Microscope (SEM). By using Kissinger method, activation energy of LiFePO4 formation reaction was about Ea = 412 kJmol-1, and the frequeny factor A =1,1705 x 103.Key words: Reaction kinetic, Kissinger method, DTA, LiFePO4.
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