摘要
本文通过带有EXAFS附件的X射线衍射仪在实验室用XRD和EXAFS两种方法完成了对充氢镍箔放氢过程的研究,测定了放氢过程中样品中NiH相含量随释氢时间的变化,XRD和EXAFS的结果是一致的,均呈指数规律下降。实验还确定了NiH相中镍和氢的原子比,说明了氢在点阵中的位置,证明实验室EXAFS装置适合这类问题的研究。
The process of releasing hydrogen from nickel foil permeated with hydrogen is investigated by XRD and a laboratory EXAFS equipment which is attached on a X-ray spectrometer. The results obtained by these two methods show that the phase content of NiH decrease exponentially in this process We also determine a definite atomic ratio of Ni and H in NiH phase and point out the location of hydrogen in the lattice. This laboratory. EXAFS equipment is proved to be suitable for the study of this kind of problem.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1992年第10期1575-1585,共11页
Acta Physica Sinica
