Adsorption of H/sub 2/ D/sub 2/ on Fe (100): kinetics and energetics. Interim report, 1 March 1986-28 February 1988

Technical Report · Sun Feb 28 04:00:00 EST 1988

OSTI ID:6676847

Kurz, E A; Hudson, J B

The adsorption behavior of H/sub 2/ and D/sub 2/ have been studied on an Fe(110) single crystal surface using a combination of thermal energy atom scattering (TEAS) and angle resolved thermal desorption spectroscopy (ARTDS). TEAS has been used to monitor adlayer coverage during adsorption, desorption and at equilibrium over a range of constant temperatures; and during temperature programmed desorption. ARTDS has been used to measure the desorption flux as a function of surface polar angle during temperature programming following adsorption at low temperature. H/sub 2/ and D/sub 2/ adsorb directly, dissociatively, with an activation energy for adsorption of slightly less than 1 kcal/mol, and an initial sticking coefficient of about 0.1, independent of temperature.

• Research Organization: Rensselaer Polytechnic Inst., Troy, NY (USA). Dept. of Materials Engineering
• OSTI ID: 6676847
• Report Number(s): AD-A-196487/3/XAB; TR-4
• Country of Publication: United States
• Language: English

Related Subjects

640304 -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
656003* -- Condensed Matter Physics-- Interactions between Beams & Condensed Matter-- (1987-)
74 ATOMIC AND MOLECULAR PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACTIVATION ENERGY
ADSORPTION
ATOMS
BEAMS
DESORPTION
DEUTERIUM
DOCUMENT TYPES
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY
HYDROGEN
HYDROGEN ISOTOPES
IRON
ISOTOPES
KINETICS
LIGHT NUCLEI
LOW TEMPERATURE
METALS
MOLECULAR BEAMS
NONMETALS
NUCLEI
ODD-ODD NUCLEI
PROGRESS REPORT
RADIATIONS
REACTION KINETICS
SCATTERING
SORPTION
SORPTIVE PROPERTIES
SPECTROSCOPY
STABLE ISOTOPES
SURFACE PROPERTIES
SURFACES
THERMAL RADIATION
TRANSITION ELEMENTS