Temperature influence on hydrogen sorption in palladium limited-volume electrodes (Pd-LVE) |
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| Authors: | Andrzej Czerwiński Iwona Kiersztyn Micha? Grdeń |
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| Institution: | (1) Department of Chemistry, Warsaw University, Pasteura 1, 02-093, Warsaw, Poland,;(2) , Industrial Chemistry Research Institute, Rydygiera 8, 01-793, Warsaw, Poland,;(3) Department of Chemistry, University of Podlasie, Siedlce, Poland, |
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| Abstract: | The effect of temperature on hydrogen and deuterium electrosorption into a palladium LVE (limited-volume electrode) has been
investigated. A decrease in hydrogen capacity (H/Pd ratio) with increasing temperature has been observed. Temperature strongly
influences the plots of measured H(D)/Pd values vs. potential scan rate. In addition, hydrogen absorption was found to be
dependent on the composition of the surrounding electrolyte solution. These results have confirmed the hypothesis that two
different mechanisms of hydrogen desorption from the palladium electrode take place, namely electrochemical oxidation and
non-electrochemical recombination. Further, the ratio between the rate constants for these two processes has been found to
change with temperature.
Electronic Publication |
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| Keywords: | Deuterium electrosorption Hydrogen electrosorption Palladium |
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