EXCESS HEAT REPRODUCIBILITY AND EVIDENCE OF ANOMALOUS ELEMENTS AFTER ELECTROLYSIS IN Pd|D2O+H2SO4 ELECTROLYTIC CELLS

Electrolyte temperature is a key factor in excess heat production using Pd|D2O+H2SO4 electrolytic cells. Best results are obtained when the electrolyte temperature is close to the boiling point. Stable excess heat is generated by events on or near the Pd cathode surface. In addition to the stable excess heat, heat bursts are sometimes observed. These occurred most frequently in experiments using 2 mm diameter tubes for the cathodes. Excess heat measured by isoperibolic calorimetry is directly verified by Seebeck envelope calorimetry. Experiments with D2SO4 replacing H2SO4 in heavy water electrolyte showed that there was no affect on excess heat production. After electrolysis, localized concentrations of silver were found on Pd cathode surfaces. Three characteristic surface features, (1) craters with rims containing electroplated Pt; (2) cracks in the sample; and (3) palladium regions around the cathode edges are preferred locations for the occurrence of silver.