Measurement of isotope separation factors in the palladium-hydrogen system using a thermistor technique

摘要

The range of available data on separation factors in the palladium-hydrogen/deuterium system has been extended. A matched pair of glass-coated bead thermistors was used to measure gas phase compositions. The compositions of the input gas--assumed also to be the solid phase composition--were measured independently be mass spectrometry as being within 0.5 mole% of the values used to calibrate the thermistors. This assumption is based on the fact that > 99% of the input gas is absorbed into the solid. Separation factors were measured for 175 K (le) T (le) 389 K and for 0.195 (le) x(sub H) (le) 0.785.