Carbonization kinetics of La2O3-Mo cathode materials
来源期刊:中国有色金属学报(英文版)2001年第4期
论文作者:王金淑 周美玲 左铁镛 张久兴 聂祚仁 胡延槽
文章页码:496 - 498
Key words:carbonization; cathode; kinetics
Abstract: The carbonization kinetics of La2O3-Mo cathode materials was studied by thermal analysis method. Three-stage model of the carbonization was presented. The carbonization rate is initially controlled by chemical reaction, then by chemical reaction mixed with diffusion, finally by diffusion. The experimental data are processed according to this model and the correlation coefficients of the kinetic curves are satisfactory. The apparent activation energy of carbonization of La2O3-Mo cathode materials was obtained. At the same time, the empirical expressions of the rate constant against temperature in the temperature range of 1393~1493K were deduced.