TY - JOUR
T1 - Kinetic of lifepo4 formation using non-isothermal thermogravimetric analysis
AU - Halim, Abdul
AU - Widiyastuti, W.
AU - Setyawan, Heru
AU - Winardi, Sugeng
PY - 2014
Y1 - 2014
N2 - The formation reaction of LiFePO4 from decomposition of precursors LiOH, FeSO4.7H2O and (NH4)2HPO4 with mole ratio of Li:Fe:P=1:1:1 was investigated. The experiment was carried out by thermogravimetric differential thermal analysis (TG-DTA) method using nitrogen as atmosphere at a constant heating rate to obtain kinetic constant parameters. Several heating rates were selected, viz. 5, 7, 10, 15, 17.5, 22.5 and 25 °C min-1. Activation energy, pre-exponential factor and reaction order were taken using Kissinger method and obtained 56.086 kJ/mol, 6.95×108 min-1, and 1.058, respective-ly. Based on fitting result between reaction model and experiment were obtained that reaction obeyed the three dimension diffusion model.
AB - The formation reaction of LiFePO4 from decomposition of precursors LiOH, FeSO4.7H2O and (NH4)2HPO4 with mole ratio of Li:Fe:P=1:1:1 was investigated. The experiment was carried out by thermogravimetric differential thermal analysis (TG-DTA) method using nitrogen as atmosphere at a constant heating rate to obtain kinetic constant parameters. Several heating rates were selected, viz. 5, 7, 10, 15, 17.5, 22.5 and 25 °C min-1. Activation energy, pre-exponential factor and reaction order were taken using Kissinger method and obtained 56.086 kJ/mol, 6.95×108 min-1, and 1.058, respective-ly. Based on fitting result between reaction model and experiment were obtained that reaction obeyed the three dimension diffusion model.
KW - Kinetics Reaction
KW - LiFePO4
KW - Thermogravimetric Differential Thermal Analysis
UR - http://www.scopus.com/inward/record.url?scp=84901058242&partnerID=8YFLogxK
U2 - 10.9767/bcrec.9.1.5508.60-65
DO - 10.9767/bcrec.9.1.5508.60-65
M3 - Article
AN - SCOPUS:84901058242
SN - 1978-2993
VL - 9
SP - 60
EP - 65
JO - Bulletin of Chemical Reaction Engineering and Catalysis
JF - Bulletin of Chemical Reaction Engineering and Catalysis
IS - 1
ER -