Reduction behavior of tungsten oxide with and without scandia doping
来源期刊：Rare Metals2021年第3期
论文作者：Jin-Shu Wang Qiang Zhao Tao Liu Wei He
文章页码：687 - 692
摘 要：As an important powder material for scandate cathode,Sc2 O3-doped WO3 powder together with hollow spherical WO3 for comparison was prepared by spraydrying method.The reduction behavior and kinetics of pure WO3 and Sc2 O3-doped WO3 were studied by temperatureprogrammed reduction（TPR） method.It is found that scandia doping can decrease the reduction activation energy of WO3 and thus lower the reduction temperature and increase the reduction rate.Based on the kinetics results,the reduction techniques are presented.The obtained powder has a narrow size distribution in the range of 0.6-0.8 μm.
Jin-Shu Wang，Qiang Zhao，Tao Liu，Wei He
School of Materials Science and Energy,University of Electronic Science and Technology
摘 要：As an important powder material for scandate cathode,Sc2 O3-doped WO3 powder together with hollow spherical WO3 for comparison was prepared by spraydrying method.The reduction behavior and kinetics of pure WO3 and Sc2 O3-doped WO3 were studied by temperatureprogrammed reduction（TPR） method.It is found that scandia doping can decrease the reduction activation energy of WO3 and thus lower the reduction temperature and increase the reduction rate.Based on the kinetics results,the reduction techniques are presented.The obtained powder has a narrow size distribution in the range of 0.6-0.8 μm.
关键词：
