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Abstract

Electrochemical reactions of Ni(OH)_2 /NiOOH system were studied by using in-situ spectroscopic ellipsometry and the conventional electrochemical metheds.By fitting data fromellipsometric measurements,a transformation medel of the surface film was obtained for cathedic andanodic processes. The results indicated that the transformation medel after cobalt implantation almostremained the same as that before cobalt implantation,but the electrochemical properties wereaffectedobviously by implantation of cobalt.

Keywords

spectroscopic ellipsometry, Nickel, Cobalt, Ion implantation

Publication Date

1995-02-28

Online Available Date

1995-02-28

Revised Date

1995-02-28

Received Date

1995-02-28

References

1McBreenJ.Thenickeloxideelectrede.ModernAspectsofElectrochemistry.WhiteREetal(ed).NewYork:PlenumPress.1991,21:292CorriganDA,BendertRM.Effectofcoprecipitatedmetalionsontheelectrochemistryofnickelhydroxidethinfilms:cyclicvoltammetryinlMKOH.J.Electrochem.Soc.,1989,136(3):7233SdmuelSSO.Ellipsometricanalyssforanabsorbingsurfacefilmonanabsorbingsubtratewithorwithoutanintermediatesurfacelayer.SurfaceScience,1976,56:97~1084谢上芬,相雨如.硫酸铵溶液中钛阳极氧化膜的椭圆法研究.重庆大学学报,1986,9(4):1185MullerRH.PrincipalsofEllipsometry.NewYork:Wiley,1973:321

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