Calorimetric investigation of the interaction in the LaNi2.5Co2.4 Mn0.1−H2 system

Autor: Semenenko Kirill N, E. A. Ganich, N. A. Yakovleva
Rok vydání: 1999
Předmět:
Zdroj: Russian Chemical Bulletin. 48:21-24
ISSN: 1573-9171
1066-5285
DOI: 10.1007/bf02494394
Popis: The interaction of hydrogen with LaNi2.5Co2.4Mn0.1 was studied in a wide temperature range (308–393 K) using the technique of “calorimetric titration.” The shape of thep-C-T diagrams changes with temperature change. The values of enthalpy and entropy of hydrogenation of LaNi2.5Co2.4Mn0.1 were obtained for the first time by direct calorimetric investigations andp-C-T measurements. The volume effects of the hydrogen absorption reaction are considered, and the LaNi2.4Co2.4Mn0.1H4.9 hydride is shown to retain the CaCu5-type hexagonal structure.
Databáze: OpenAIRE