Study of Deuterium Charging Behaviour in Palladium and Palladium Alloy Plates, Changing Surface Treatments, by ms Pulsed Electrolysis

A systematic study about deuterium loading in palladium has been performed. Palladium cold worked plates and palladium alloy plates have been used as comparison. A proper plate surface oxidation has been performed and anomalous absorption rates have been measured. A high peak current (15 A), short width pulse (duration 1μs) electrolysis technique has been used to test all chatode plates and it is visible that this technique permits to reach very high D/Pd loading values (around 1/1 or even more for palladium). At the beginning of the loading, in close relation with the anomalous absorption rate, a bump of excess heat has been measured in two similar oxidized surface palladium plates.All these tests show that the loading is completely reproducible.