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  • Molybdate and vanadate ions as corrosion inhibitors for clad aluminium alloy 2024-T3 [Elektronski vir]
    Milošev, Ingrid ; Pavlovčič, Tjaša ; Tomšič, Matija, kemik
    Molybdate and vanadate ions were used as corrosion inhibitors for the clad aluminium alloy 2024-T3 in chloride solution to investigate the differences in their inhibitory effect. Electrochemical ... measurements in 0.1 M NaCl investigated the influence of inhibitor concentration from 0.5 mM to 250 mM, solution pH from 5 to 9 and immersion time at open circuit potential of up to 12 h. Both compounds act predominantly as anodic inhibitors; however, the effect of molybdate increases significantly at concentrations above 50 mM and leads to a broad passive range. Surface analysis of the samples exposed to inhibitor performed by X-ray photoelectron spectroscopy showed that the inhibitor layers consist of oxides of multiple valences. Scanning electron microscopy with chemical analysis was also used to characterise the inhibitor layers. Equilibrium diagrams of the aqueous species in the selected concentration range were generated to better understand the inhibition mechanism and to correlate the electrochemical data and data on surface properties.
    Vir: Electrochimica acta [Elektronski vir]. - ISSN 1873-3859 (Vol. 504, [article no.] 144893, Nov. 2024, str. 1-21)
    Vrsta gradiva - e-članek ; neleposlovje za odrasle
    Leto - 2024
    Jezik - angleški
    COBISS.SI-ID - 205238275

    Povezava(-e):

    https://www.sciencedirect.com/science/article/pii/S0013468624011319?via%3Dihub
    Repozitorij Univerze v Ljubljani – RUL
    DOI

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