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SEM and EDS Characterization of Palladium Cathodes After Electrolysis in Light and Heavy Water

Published online by Cambridge University Press:  02 July 2020

D. Silver  and
J. Dash
D. Silver
Affiliation:
Department of Physics, Portland State University, P. O. Box 751, Portland, Oregon97207
J. Dash
Affiliation:
Department of Physics, Portland State University, P. O. Box 751, Portland, Oregon97207
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Extract

Studies of Pd foil cathodes have indicated that when electrolyzed for long times in electrolytes containing both deuterium and hydrogen ions along with sulfuric acid, the cathodes undergo compositional, topographical, evolutionary, and isotopic changes. The results reported here describe the changes which are produced in Pd cathodes after only a few minutes of electrolysis.

In June 1993 a cold-rolled, Pd (AESAR lot #12E06) cathode of 40μm thickness was submerged at one end into an electrolyte containing 20 ml D2O and 3.5 ml H2SO4 and electrolyzed for six minutes at about 0.6 A/cm2 and 3.65 V. An identical Pd cathode (cut from the same strip) was submerged at one end into an electrolyte containing 20 ml H2O and 3.5 H2SO4 and electrolyzed for six minutes using 0.6 A/cm2 and 4.11 V. A Pt foil acted as the anode in each case. The two cells were connected in series. An ionic current flowed between the electrodes for each system as the voltages were applied.

Type
Mas Celebrates: Fifty Years of Electron Probe Microanalysis
Information
Microscopy and Microanalysis , Volume 5 , Issue S2: Proceedings: Microscopy & Microanalysis '99, Microscopy Society of America 57th Annual Meeting, Microbeam Analysis Society 33rd Annual Meeting, Portland, Oregon August 1-5, 1999 , August 1999 , pp. 596 - 597
Copyright
Copyright © Microscopy Society of America

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References

1.Dash, J., Noble, G., and Diman, D., Transactions Fusion Tech. 26(1994)299.Google Scholar
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6.Silver, D., Ph.D. Dissertation, Portland State University (1997).Google Scholar
7. This research was supported with funds provided by Mr. and Mrs. Jerome, Drexler, the New York Community Trust, and the U.S. Army Research Office under grant number DAAG55-97-1-0357.Google Scholar