Kinetics of isotope exchange in intermetallic compound (LaNi/sub 5/, ZrNi)-hydrogen-water

Journal Article · Wed Oct 01 00:00:00 EDT 1986 · Kinet. Catal. (Engl. Transl.); (United States)

OSTI ID:6949188

Ptashnik, V B; Dunaeva, T Y; Lukoshkin, V A

The rate of isotope exchange in the molecular hydrogen-intermetallic compound hydride (LaNi/sub 5/, ZrNi)-water system was measured in the 293-363/sup 0/K temperature range and at 0.101-MPa pressure. It was shown that the isotope exchange between water and hydrogen proceeds in two states: the first is H/sub 2/ - IMCH - and the second IMCH - water, the second stage being the slower one. A homomolecular isotope exchange of hydrogen in the gaseous phase proceeds mainly by types I and II mechanisms (without the participation of the solid state hydrogen atoms, and with the participation of one hydrogen atom of the solid state, respectively).

• Research Organization: A.F. Joffe Physicotechnical Institute, Acad. of Sci., Leningrad
• OSTI ID: 6949188
• Journal Information: Kinet. Catal. (Engl. Transl.); (United States), Vol. 27:2, PT. 2
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
HYDROGEN
ISOTOPIC EXCHANGE
LANTHANUM ALLOYS
CATALYTIC EFFECTS
WATER
ZIRCONIUM ALLOYS
CATALYSTS
CHEMICAL REACTION KINETICS
HYDRIDES
INTERMETALLIC COMPOUNDS
MEDIUM PRESSURE
MEDIUM TEMPERATURE
NICKEL ALLOYS
TEMPERATURE DEPENDENCE
TEMPERATURE EFFECTS
ALLOYS
ELEMENTS
HYDROGEN COMPOUNDS
KINETICS
NONMETALS
OXYGEN COMPOUNDS
RARE EARTH ALLOYS
REACTION KINETICS
400202* - Isotope Effects
Isotope Exchange
& Isotope Separation