Particle-size effect on the rate of carbon reduction of TiO2

被引:8
|
作者
Lekanova, TL [1 ]
Ryabkov, YI [1 ]
Sevbo, OA [1 ]
机构
[1] Russian Acad Sci, Ural Div, Komi Sci Ctr, Inst Chem, Syktyvkar 167982, Komi Republic, Russia
关键词
D O I
10.1023/A:1024539925986
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Data are presented on the rate of TiO2 reduction in the TiO2-C system at 1300degreesC at different specific surfaces of the starting reagents. The equivalent particle sizes of TiO2 and C, varied in the range 100-500 nm, have similar effects on the rate of TiO2 reduction. Analysis of the reaction kinetics indicates that the carbonizing of TiO2 is a diffusion-limited process if the specific surface areas of TiO2 and C exceed 100 m(2)/g.
引用
收藏
页码:715 / 719
页数:5
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