Regulating Step in LaNi sub 5 Hydride Formation Kinetics: a Competition Among Surface Reaction, Heat Transfer and Hydrogen Diffusion?

Regulating Step in LaNi sub 5 Hydride Formation Kinetics: a Competition Among Surface Reaction, Heat Transfer and Hydrogen Diffusion?

Fast exothermic reactions in LaNi sub 5 --H sub 2 exhibit a complex relationship between the reaction rate and the sample mass. In particular, a decrease in the reaction rate is observed when the mass is reduced from 30 to 5 mg. It is shown that heat flow cannot be the only regulating step. 7 ref.--...

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Veröffentlicht in:Journal of the less-common metals 1985-05, Vol.107 (2), p.213-219
Hauptverfasser: Bayane, C, Hammioui, M E, Sciora, E, Gerard, N
Format: Artikel
Sprache:eng
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Zusammenfassung:Fast exothermic reactions in LaNi sub 5 --H sub 2 exhibit a complex relationship between the reaction rate and the sample mass. In particular, a decrease in the reaction rate is observed when the mass is reduced from 30 to 5 mg. It is shown that heat flow cannot be the only regulating step. 7 ref.--AA
ISSN:0022-5088