In-situ synchrotron energy-dispersive x-ray diffraction study of thin Pd foils with Pd:D and Pd:H concentrations up to 1:1

Time resolved, in-situ, energy dispersive x-ray diffraction was performed in an electrolysis cell during electrochemical loading of palladium foil cathodes with hydrogen and deuterium. Concentrations of H:Pd (D:Pd) up to 1:1 in 0.1 M LiOH (LiOD) in H2O (D2O) electrolyte were obtained, as determined...

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Bibliographic Details
Published in:Journal of applied physics 2012-10, Vol.112 (8)
Main Authors: Knies, D. L., Violante, V., Grabowski, K. S., Hu, J. Z., Dominguez, D. D., He, J. H., Qadri, S. B., Hubler, G. K.
Format: Article
Language:English
Subjects:
36
Cathodes
Deuterium
Diffraction
Foils
Palladium
Phase transformations
Synchrotrons
X-rays
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Summary:Time resolved, in-situ, energy dispersive x-ray diffraction was performed in an electrolysis cell during electrochemical loading of palladium foil cathodes with hydrogen and deuterium. Concentrations of H:Pd (D:Pd) up to 1:1 in 0.1 M LiOH (LiOD) in H2O (D2O) electrolyte were obtained, as determined by both the Pd lattice parameter and cathode resistivity. In addition, some indications on the kinetics of loading and deloading of hydrogen from the Pd surface were obtained. The alpha-beta phase transformations were clearly delineated but no new phases at high concentration were determined.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4759166