Technical Note:Experimental Survey of Corrosion Potentials for Rare Earth Metals Ce, Er, Gd, La, and Nd as a Function of pH and Chloride Concentration

What is it about?

This paper investigates the corrosion potentials (open circuit potential) of various pure rare earth elements in NaCl as a function of both pH and concentration. Previous reports on the OCP of rare earth elements was previously limited. Here, Ce, La, Nd, Gd, and Er were evaluated.

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Why is it important?

This paper shows that all rare earth elements do not behave similarly and possess corrosion potentials much more positive than their respective oxidation/reduction potentials.