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Anodic properties of platinum-chromium alloys in sulfuric acid solution

Breiter, M.W.

Journal of electroanalytical chemistry, 1965-01, Vol.10 (3), p.191-198

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Título:
Anodic properties of platinum-chromium alloys in sulfuric acid solution
Autor: Breiter, M.W.
É parte de: Journal of electroanalytical chemistry, 1965-01, Vol.10 (3), p.191-198
Descrição: Hydrogen adsorption and the formation and reduction of oxygen layers were investigated on four Pt-Cr alloys in N H 2SO 4 at 30° in the potential region between hydrogen and oxygen evolution. Periodic voltammetric current-potential curves measured at 3 mV/sec give evidence of two different oxidation states of the passive layer on the part of the surface with the electrochemical behavior of chromium. The presence of platinum atoms on the surface may be detected by their influence on the ohmic and capacitive component of the interfacial impedance between 100 c/s and 10 kc/s for the alloys with chromium contents above 11 atomic %.
Editor: Elsevier B.V
Idioma: Inglês

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