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| Title: | INNOVATIVE PROCEDURE FOR THE, IN SITU, MEASUREMENT OF THE RESISTIVE THERMAL COEFFICIENT OF H(D)/Pd DURING ELECTROLYSIS: CROSS-COMPARISON OF NEW ELEMENTS DETECTED IN THE Th–Hg–Pd–D(H) ELECTROLYTIC CELLS | |
| DOI No: | 10.1142/9789812774354_0009 | |
| Source: | CONDENSED MATTER NUCLEAR SCIENCE (pp 108-127) | |
| Author(s): | FRANCESCO CELANI
INFN-LNF, Via E. Fermi 40, 00044 Frascati, Rome, Italy A. SPALLONE INFN-LNF, Via E. Fermi 40, 00044 Frascati, Rome, Italy E. RIGHI INFN-LNF, Via E. Fermi 40, 00044 Frascati, Rome, Italy G. TRENTA INFN-LNF, Via E. Fermi 40, 00044 Frascati, Rome, Italy C. CATENA INFN-LNF, Via E. Fermi 40, 00044 Frascati, Rome, Italy G. D’AGOSTARO INFN-LNF, Via E. Fermi 40, 00044 Frascati, Rome, Italy P. QUERCIA INFN-LNF, Via E. Fermi 40, 00044 Frascati, Rome, Italy V. ANDREASSI INFN-LNF, Via E. Fermi 40, 00044 Frascati, Rome, Italy P. MARINI EURESYS, Via Lero 30, 00129 Rome, Italy V. DI STEFANO EURESYS, Via Lero 30, 00129 Rome, Italy M. NAKAMURA EURESYS, Via Lero 30, 00129 Rome, Italy A. MANCINI ORIM Srl, Via Concordia 65, 62100 Piediripa, Macerata, Italy P. G. SONA Via S. Carlo 12, 20090 Segrate, Milan, Italy F. FONTANA Pirelli Labs SpA, Viale Sarca 222, 20126 Milan, Italy L. GAMBERALE Pirelli Labs SpA, Viale Sarca 222, 20126 Milan, Italy D. GARBELLI Pirelli Labs SpA, Viale Sarca 222, 20126 Milan, Italy E. CELIA CSM SpA, Via di Castel Romano 100, 00129 Rome, Italy F. FALCIONI CSM SpA, Via di Castel Romano 100, 00129 Rome, Italy M. MARCHESINI CSM SpA, Via di Castel Romano 100, 00129 Rome, Italy E. NOVARO CSM SpA, Via di Castel Romano 100, 00129 Rome, Italy U. MASTROMATTEO STMicroelectronics SpA, Via Tolomeo 1, 20010 Cornaredo, Milan, Italy |
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| Abstract: | In the framework of cold fusion studies one of the most important parameters is the deuterium (D) to palladium (Pd) ratio, D/Pd. It is well known that the value of this parameter is related to the normalised resistivity (R/R0) of the D–Pd system. When at high D/Pd ratios (i.e. at low R/R0 values) some excess heat occurs, the Pd wire temperature increase and, as a consequence, the apparent R/R0 value also increases. This effect might give raise to ambiguous data interpretation: similar results are in fact expected in case of a Pd wire degassing (i.e. decreasing of D/Pd ratio). To solve this problem, we developed an innovative procedure and a suitable experimental set-up for the in situ measurement of the Resistive Temperature Coefficient (which is affected only by the real D/Pd ratio) during electrolysis. We will report the results on the hydrogen and deuterium loading of thin (50 μm), and long (60cm) Pd wires, immersed in a solution of C2H5OD (or C2H5OH) and D2O (or H2O), with addition of thorium (Th) and mercury (Hg) salts at micromolar concentrations. Evidence of “transmutations” of some elements occasionally present on the Pd surface, and sometimes also in the electrolytic solution, have often been claimed in cold fusion experiments. In the present work, unexpected elements have been detected by high-resolution ICP-MS analysis. Some of these elements have also an isotopic composition different from the natural one. | |
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