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The formation of voids in palladium, metal by the introduction and removal of interstitial hydrogen

1973; Taylor & Francis; Volume: 28; Issue: 6 Linguagem: Inglês

10.1080/14786437308228010

0031-8086

J.F. Lynch, J.D. Clewley, Ted B. Flanagan,

Hydrogen Storage and Materials

Abstract It is shown that voids are created in palladium by the introduction (H-to-Pd, atomic ratio 0·68) and subsequent removal (50°C) of interstitial hydrogen. At a given low pressure the dehydrogenated palladium sorbs more hydrogen than the original palladium sample. The quantities of this additionally sobbed hydrogen are too large to be attributed to the accessible surface area. Further evidence is cited to show that it corresponds to hydrogen chemisorbed onto the surface of voids.