Janßen, S. ; Natter, H. ; Hempelmann, R. ; Striffler, T. ; Stuhr, U. ; Wipf, H. ; Hahn, H. ; Cook, J. C. (1997)
Hydrogen diffusion in nanocrystalline Pd by means of quasielastic neutron scattering.
In: Nanostructured materials, 9 (1-8)
doi: 10.1016/S0965-9773(97)00129-3
Artikel, Bibliographie
Kurzbeschreibung (Abstract)
Hydrogen Diffusion in nanocrystalline Palladium has been investigated by means of quasielastic neutron scattering (QENS) in the temperature range 220–300K within the α-phase. The QENS -results reveal broad and narrow line widths with the first ones being significantly broader than those obtained from the coarse gained PdH reference sample indicating the presence of a fast diffusion process within the grain boundaries. The narrow line width seems to emerge from the diffusion within the nanocrystalline grains. A large elastic contribution to the spectra reveals hints on hydrogen traps due to internal surfaces and defects. For comparison of effects emerging from the preparation process samples have been investigated obtained from different preparation techniques, i.e. pulsed electrodeposition (PED) and inert gas condensation (IGC).
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 1997 |
| Autor(en): | Janßen, S. ; Natter, H. ; Hempelmann, R. ; Striffler, T. ; Stuhr, U. ; Wipf, H. ; Hahn, H. ; Cook, J. C. |
| Art des Eintrags: | Bibliographie |
| Titel: | Hydrogen diffusion in nanocrystalline Pd by means of quasielastic neutron scattering |
| Sprache: | Englisch |
| Publikationsjahr: | 1997 |
| Verlag: | Elsevier |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Nanostructured materials |
| Jahrgang/Volume einer Zeitschrift: | 9 |
| (Heft-)Nummer: | 1-8 |
| DOI: | 10.1016/S0965-9773(97)00129-3 |
| Kurzbeschreibung (Abstract): | Hydrogen Diffusion in nanocrystalline Palladium has been investigated by means of quasielastic neutron scattering (QENS) in the temperature range 220–300K within the α-phase. The QENS -results reveal broad and narrow line widths with the first ones being significantly broader than those obtained from the coarse gained PdH reference sample indicating the presence of a fast diffusion process within the grain boundaries. The narrow line width seems to emerge from the diffusion within the nanocrystalline grains. A large elastic contribution to the spectra reveals hints on hydrogen traps due to internal surfaces and defects. For comparison of effects emerging from the preparation process samples have been investigated obtained from different preparation techniques, i.e. pulsed electrodeposition (PED) and inert gas condensation (IGC). |
| Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Fachbereich Materialwissenschaft (1999 aufgegangen in 11 Fachbereich Material- und Geowissenschaften) |
| Hinterlegungsdatum: | 19 Nov 2008 16:21 |
| Letzte Änderung: | 11 Aug 2023 12:56 |
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