IMPROVED SURFACE-PROPERTIES OF ZR-M-NI HYDRIDE ELECTRODES BY OXIDATION TREATMENT

Authors
WANG XL SUDA S WAKAO S
Citation
Xl. Wang et al., IMPROVED SURFACE-PROPERTIES OF ZR-M-NI HYDRIDE ELECTRODES BY OXIDATION TREATMENT, Zeitschrift für physikalische Chemie, 183, 1994, pp. 297-302
Citations number
5
Categorie Soggetti
Chemistry Physical","Physics, Atomic, Molecular & Chemical
Journal title
Zeitschrift für physikalische Chemie → ACNP
ISSN journal
09429352
Volume
183
Year of publication
1994
Part
1-2
Pages
297 - 302
Database
ISI
SICI code
0942-9352(1994)183:<297:ISOZHE>2.0.ZU;2-S
Abstract
The surface properties of oxidation treated ZrNi1.43, ZrV0.79Ni1.61, a nd ZrTi0.43Ni1.43 alloys were investigated by X-ray photoemission spec troscopy (XPS) and secondary ion mass spectroscopy (SIMS). The oxidati on treatment was found to result in segregation on the surface, where zirconium and titanium are enriched and oxidized on the surface. Metal lic nickel and vanadium precipitates in the sub-surface and are protec ted from oxygen by the zirconium or titanium oxide layer. The relation ship between the surface structure produced and the high reactivity is discussed.