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The Corrosion Forum: Passivation of pure Nickel coatings

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    • CommentAuthorSlavius
    • CommentTimeMay 29th 2008
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    Hi all,

    I'm processing pure Ni and Ni-based coatings für catalysis meanings (porous coatings with primray particle sizes of about 10 nm) in a plasma process.
    The problem is, that the samples are handled in air after the coating process, meaning that the coating layers a prone to oxidation. I'm currently searching
    a way to prevent this (for catalysis meanings detrimentral) surface oxidation. Maybe there is a possibility to treat the surface in-situ (meaning before venting the plasma vacuum chamber) with a passivation gas.

    My question to you is: Is there any known gas that passivates the catalytic surface without having a deleterious effect on catalytic activity?

    Any answer with helpful hints or publications would be very appreciated.

    Thanks!

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