Structural analysis of nano-sized-Pd/ZrO2 composite after H(D) absorption
Structural analysis of high density H(D) absorbed Pd particles with 5 nm dispersed ZrO2 has been carried out using XAFS (X-ray Absorption Fine Structure) techniques. X-ray absorption spectra around the Pd K-absorption edge were observed and analyzed. The Pd-Pd bonding distance was enlarged by 0.08 A...
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Published in | Solid state ionics Vol. 177; no. 19-25; pp. 1861 - 1864 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
Published |
15.10.2006
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Online Access | Get full text |
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Summary: | Structural analysis of high density H(D) absorbed Pd particles with 5 nm dispersed ZrO2 has been carried out using XAFS (X-ray Absorption Fine Structure) techniques. X-ray absorption spectra around the Pd K-absorption edge were observed and analyzed. The Pd-Pd bonding distance was enlarged by 0.08 A during absorption of deuterium, and it completely reverted to its original state with the release of deuterium while maintaining the crystal lattice symmetry. These changes provide evidence that deuterium locates not on the surface of the Pd particle, but rather within the Pd crystal lattice. The hydrogen absorption mechanism will also be discussed. |
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Bibliography: | SourceType-Scholarly Journals-2 ObjectType-Feature-2 ObjectType-Conference Paper-1 content type line 23 SourceType-Conference Papers & Proceedings-1 ObjectType-Article-3 |
ISSN: | 0167-2738 |
DOI: | 10.1016/j.ssi.2006.04.019 |