Absorption of hydrogen by palladium–platinum alloys under high pressures of hydrogen gas

Abstract

Effects of the absorption of hydrogen on the electrical resistance of a series of palladium–platinum alloys have been studied at pressures of hydrogen up to 24 000 atm at 25°C. Effects indicative of significant absorption of hydrogen were obtained for alloys containing ⩽ 50 (atomic)% Pt. In general, results suggest that, with increasing platinum content, there is a gradual but continuous modification of the form of relationships between hydrogen content and the chemical potential of hydrogen—and that at any given reference pressure, hydrogen solubility is always a decreasing function of platinum content.