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IGA储氢文章

教育装备采购网 2012-06-04 14:13 围观287次

The hydrogen-absorbing intermetallic compound LaNi5 was activated using volumetric apparatus (a HTP1-V volumetric hydrogen storage analyser) at 333 K. Pressure-composition isotherms (PCIs) were measured through the first 8 hydrogenation cycles and show considerable change in the hydrogen absorption behaviour through the activation process. A series of isotherms at temperatures in the range 308 – 413 K were also measured. The higher temperature measurements show a clear indication of the formation of an intermediate g phase between the solid solution a phase and b hydride phase. Van ‘t Hoff plots were determined from the measured isotherms and the average value for ΔH of 15.6 kJ/mol ½H2 was found to be in good agreement with the literature.

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