Equilibrium adsorption of hydrogen on LaNi/sub 5/
Journal Article
·
· J. Appl. Chem. USSR (Engl. Transl.); (United States)
OSTI ID:6765148
The equilibrium adsorption of hydrogen on LaNi/sub 5/ was studied and the Hill and de Boer equation was utilized to describe two mechanisms of hydrogen adsorption in LaNi/sub 5/. A schematic diagram of the apparatus used for studying equilibrium adsorption of H/sub 2/ on LaNi/sub 5/ is presented. The assembly included a metering vessel for hydrogen (1), and an adsorber (2), both volume-calibrated. 2 ..mu..m aperture size, was activated in the adsorber by three successive adsorption-desorption cycles. Desorption was effected by heating at 200/sup 0/C for 30 min accompanied by evacuation to 20 mm residual pressure, and adsorption by the action of hydrogen under 40 atm pressure. The activated LaNi/sub 5/ was outgassed, and a measured amount of hydrogen was introduced into the adsorber at a definite temperature. After establishment of equilibrium the amount of hydrogen adsorbed was calculated from the difference of pressures before and after the experiment, and a fresh portion of hydrogen was then admitted into the adsorber.
- OSTI ID:
- 6765148
- Journal Information:
- J. Appl. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Appl. Chem. USSR (Engl. Transl.); (United States) Vol. 54:9; ISSN JAPUA
- Country of Publication:
- United States
- Language:
- English
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Tue Mar 31 23:00:00 EST 1987
· Mater. Res. Bull.; (United States)
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Thu Dec 31 23:00:00 EST 1981
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Related Subjects
08 HYDROGEN
080201* -- Hydrogen-- Chemisorption Storage
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400100 -- Analytical & Separations Chemistry
ADSORPTION
ADSORPTION ISOTHERMS
ALLOYS
DATA
DIFFERENTIAL EQUATIONS
ELEMENTS
EQUATIONS
EQUILIBRIUM
EXPERIMENTAL DATA
HILL EQUATION
HYDRIDES
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN STORAGE
INFORMATION
INTERMETALLIC COMPOUNDS
ISOTHERM
LANTHANUM ALLOYS
LANTHANUM COMPOUNDS
LANTHANUM HYDRIDES
NICKEL ALLOYS
NICKEL COMPOUNDS
NICKEL HYDRIDES
NONMETALS
NUMERICAL DATA
RARE EARTH ALLOYS
RARE EARTH COMPOUNDS
SORPTION
SORPTIVE PROPERTIES
STORAGE
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
080201* -- Hydrogen-- Chemisorption Storage
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400100 -- Analytical & Separations Chemistry
ADSORPTION
ADSORPTION ISOTHERMS
ALLOYS
DATA
DIFFERENTIAL EQUATIONS
ELEMENTS
EQUATIONS
EQUILIBRIUM
EXPERIMENTAL DATA
HILL EQUATION
HYDRIDES
HYDROGEN
HYDROGEN COMPOUNDS
HYDROGEN STORAGE
INFORMATION
INTERMETALLIC COMPOUNDS
ISOTHERM
LANTHANUM ALLOYS
LANTHANUM COMPOUNDS
LANTHANUM HYDRIDES
NICKEL ALLOYS
NICKEL COMPOUNDS
NICKEL HYDRIDES
NONMETALS
NUMERICAL DATA
RARE EARTH ALLOYS
RARE EARTH COMPOUNDS
SORPTION
SORPTIVE PROPERTIES
STORAGE
SURFACE PROPERTIES
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS