Anomalous effects in charging of Pd powders with high density hydrogen isotopes |
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Authors: | Akira Kitamura Takayoshi Nohmi Akira Taniike Reiko Seto |
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Institution: | a Division of Marine Engineering, Graduate School of Maritime Sciences, Kobe University, 5-1-1 Fukaeminami-machi, Higashinada-ku, Kobe 6580022, Japan b Technova Inc., 1-1-1 Uchisaiwai-cho, Chiyoda-ku, Tokyo 1000011, Japan |
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Abstract: | A twin system for hydrogen absorption experiments has been constructed to replicate the phenomenon of heat and 4He generation by D2 gas absorption in nano-sized Pd powders reported by Arata and Zhang, and to investigate the underlying physics. For Pd⋅Zr oxide nano-powders, anomalously large energies of hydrogen isotope absorption, 2.4±0.2 eV/D-atom and 1.8±0.4 eV/H-atom, as well as large loading ratio of D/Pd=1.1±0.0 and H/Pd=1.1±0.3, respectively, were observed in the phase of deuteride/hydride formation. The sample charged with D2 also showed significantly positive output energy in the second phase after the deuteride formation. |
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Keywords: | _method=retrieve& _eid=1-s2 0-S0375960109007877& _mathId=si6 gif& _pii=S0375960109007877& _issn=03759601& _acct=C000053510& _version=1& _userid=1524097& md5=e996afc46ebf9be14f65178bfcf8fed8')" style="cursor:pointer Pd&sdot" target="_blank">" alt="Click to view the MathML source" title="Click to view the MathML source">Pd&sdot Zr nano-powder Deuterium absorption Hydrogen absorption D/Pd ratio Isotope effect |
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