Kinetic of LiFePO4 Formation Using Non-isothermal Thermogravimetric Analysis

被引：0
|
作者：
Halim, Abdul [1 ]
Widiyastuti, W. [1 ]
Setyawan, Heru [1 ]
Winardi, Sugeng [1 ]
机构：
[1] Sepuluh Nopember Inst Technol, Dept Chem Engn, Kampus Sukolilo, Surabaya 60111, Indonesia
来源：
BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS | 2014年 / 9卷 / 01期
关键词：
LiFePO4; Thermogravimetric Differential Thermal Analysis; Kinetics Reaction;
D O I：
10.9767/bcrec.9.1.5508.60-65
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The formation reaction of LiFePO4 from decomposition of precursors LiOH, FeSO(4.)7H(2)O and (NH4)(2)HPO4 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 degrees C min(-1). Activation energy, pre-exponential factor and reaction order were taken using Kissinger method and obtained 56.086 kJ/mol, 6.95x108 min(-1), and 1.058, respectively. Based on fitting result between reaction model and experiment were obtained that reaction obeyed the three dimension diffusion model. (C) 2014 BCREC UNDIP. All rights reserved
引用
收藏
页码：60 / 65
页数：6
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