THE ROLE OF ADSORPTION IN THE CATALYTIC PARA-ORTHO-HYDROGEN CONVERSION
AIR FORCE AERO PROPULSION LAB WRIGHT-PATTERSON AFB OH
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Adsorption isotherms were determined for two para-ortho-hydrogen conversion catalysts, hydrous ferric oxide gel and nickel oxide silicate, at temperatures from 63K to 196K and at pressures from 1 to 10 atmospheres. For the catalysts studied, Langmuirs Isotherm holds at 194.6K, while at lower temperatures approximately 60-90 K, the adsorption mechanism appears to be one where two molecules are adsorbed on five effective centers.
- Atomic and Molecular Physics and Spectroscopy