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7182715 
Journal Article 
Electrochemical study of S and Pb adsorption on Ni in aqueous acidic media 
Ebrahimy, AF; Hermoso-Diaz, IA; Newman, RC; , 
2020 
Yes 
Corrosion Science
ISSN: 0010-938X
EISSN: 1879-0496 
PERGAMON-ELSEVIER SCIENCE LTD 
OXFORD 
175 
WOS:000579426100005 
The adsorption competition of lead and sulfur on nickel has been explored in acidic aqueous media at room temperature by examining the electrochemical behavior of Ni. A separate PbO or K2S4O6 inoculation resulted in significant inhibition and activation of Ni corrosion, respectively. The investigation of the combined effects of Pb and S revealed that S mostly dominates over Pb for adsorption on Ni. When added in sequence and in different proportions, the kinetic evidence indicates neither species fully replaces the other on a pure metallic Ni surface, i.e., some permanent effect of Pb was observed even after S was added. 
Lead; Sulfur; Nickel; Electrochemical measurements; Corrosion; Inhibition