cathodic polarization

cathodic polarization

[kə′thäd·ik ‚pō·lə·rə′zā·shən]
(physical chemistry)
Portion of electric cell polarization occurring at the cathode.
Mentioned in ?
References in periodicals archive ?
Agarwala, "Characterization of hydrogen permeation in armco-fe during cathodic polarization in aqueous electrolytic media," Journal of Materials Engineering and Performance, vol.
At the beginning of the experiment, the slope of cathodic polarization curve was larger than that of anodic polarization curve.
ORR process on Pt-electrode in 0.1 M KOH for cathodic polarization of 1.1 to -0.2 V (versus RHE) is accompanied by ring/disk current ratio within 20-25% interval [36].
Figure 1(a) displays the cathodic polarization curves of [Emim][DCA] containing 0.05 M Sn(II), 0.1 M Cu(I) + 0.05M Sn(II), and 0.1 M Cu(I).
Since the anodic peak on the voltammogram occurs only after the cathodic polarization of the CPE, it is most likely associated with the electric oxidation of iron(II) to iron(III) from the nanoparticles to the CPE surface.
In cathodic polarization the voltage increases with the corrosion current decreases until it reaches the lowest possible value.
The sacrificial zinc in the primer provides short-term protection to the exposed steel from corrosion through cathodic polarization, providing sufficient time for the silane to form an effective barrier layer.
The Icorr was determined by Tafel extrapolation of only the cathodic polarization curve alone, which usually produced a longer and better defined Tafel region [20].
Cathodic Polarization at Uncharged Surface Potential as the Way of Protection from Corrosive-Mechanical Destruction in Sea Water.
The anodic and cathodic polarization curves, according to ISO 17475, were recorded using two separated sweep potential scans in the range [+ or -] 1500 mV respect OCP with a scanning rate of 1 mV/s.
A cathodic polarization measurement was carried out to evaluate the role of citric acid.
In addition, the obtained results revealed that the cathodic polarization curve of Zn--Ni--Fe alloy deposition (29) lies between the polarization curves of Zn and Ni or Zn and Fe.