钨氧化物氢还原的高温X射线衍射研究

来源期刊：中南大学学报(自然科学版)1987年第1期

论文作者：钱崇梁 邹志强 吴恩熙

文章页码：59 - 64

关键词：氧化钨； 氢还原； X射线衍射分析； 高温； 动态相变； 反应动力学

Key words：tungsten oxide； hydrogen reduction； X-ray diffraction analysis； high temperature； dynamic phase transition； reaction kinetics

摘    要：本文应用高温 X 射线衍射方法研究了以 W₂₀ O₅₈ 为主相的蓝钨和 WO₃（黄钨）的氢还原动态相变过程.所得高温衍射测试效据经电子计算机处理,定量地绘出动态相变图和还原动力学曲线图.比较了湿氢和干氢两种气氛下还原的结果,并探论了还原机理.

Abstract: High-temperature in-situ X-Ray diffracton analysis has been applied to study the dynamic phase transformation process of blue tungsten oxide(W₂₀ O₅₈ )and yellow tungsten oxide（WO₃） during H₂-reduction.By means of computer data treatment, the dynamic phase transtormation figure and reduction dynamics figure were drawn out quantitatively and automatically.The reduction processes in wet H₂ and dry H₂ atmosphere have beed compared.The reduction mechanism has also been discussed.