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Platinum-catalyzed high temperature oxidation of metals
KTH, Skolan för kemivetenskap (CHE), Kemi, Korrosionslära.
2007 (engelsk)Inngår i: Corrosion Science, ISSN 0010-938X, E-ISSN 1879-0496, Vol. 49, nr 8, s. 3348-3360Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Samples of At, Cr, Ni, and Zr were sputter-coated with porous Pt-films with a particle size of 20-30 nm. Thermal oxidation of these samples was studied by gas phase analysis (GPA) and secondary ion mass spectrometry (SIMS). SIMS analysis on partly Pt-coated samples of At, Cr, Ni, and Zr at different oxide depths in areas with Pt and in areas away from Pt indicates an enhanced inward oxide growth in the Pt area and mm-ranged distance from Pt-area. Weight gain measurements on Pt-coated Ni samples show a reduced or increased oxidation rate depending on the amount of porous Pt-coating. Pt has two effects on the thermal oxidation of metals and the overall effect of Pt on the oxidation of metals depends on the mechanism of oxide growth in the absence of Pt.

sted, utgiver, år, opplag, sider
2007. Vol. 49, nr 8, s. 3348-3360
Emneord [en]
platinum, metal, SIMS, oxidation, o-2, dissociation, chromium, elements, kinetics, growth, scales
Identifikatorer
URN: urn:nbn:se:kth:diva-16886DOI: 10.1016/j.corsci.2007.03.010ISI: 000248879600013Scopus ID: 2-s2.0-34347269122OAI: oai:DiVA.org:kth-16886DiVA, id: diva2:334929
Merknad
QC 20100525Tilgjengelig fra: 2010-08-05 Laget: 2010-08-05 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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