XRD AND EXAFS STUDIES ON THE PROCESS OF RELEASING HYDROGEN FROM NICKEL FOIL PERMEATED WITH HYDROGEN
充氢镍箔放氢过程的XRD与EXAFS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.