Free Energy of Hydride Formation in Pd-Ni Alloys System

• Autorzy: Baranowski B. , Dębowska L.
• Języki publikacji: EN

Abstrakty

EN

Formation and decomposition pressures of hydrides for Ni0.3Pd0.7, Ni0.5Pd0.5, Ni0.7Pd0.3 and Ni0.9Pd0.1 alloys have been determined by following the thermoelectric power of these alloys as function of hydrogen pressure at 298 K. From the desorption pressures the free energies of hydride formation were calculated. These results combined with literature data are discussed in terms of deviation from an ideal behavior. The dominance of nickel is clearly demonstrated, what could be expected from its large hydride formation pressure in comparison with palladium hydride. The term "excess free energy of formation" is introduced and discussed for the alloy system treated.

Słowa kluczowe

EN

high pressure; thermodynamics; alloys; hydrides; excess free energy of formation

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2003
• Tom: Vol. 77 / nr 9
• Strony: 1207--1212
• Opis fizyczny: Bibliogr. 24 poz., rys.

Twórcy

autor

Baranowski B.

• Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland

autor

Dębowska L.

• Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland

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