Abstract
The voltammetric response of Zn in NaOH solutions containing different Na 2S concentrations showed that for potentials located between the beginning of Zn anodic oxidation and Zn passivation, ZnS formation can be observed as a result of an initial competitive adsorption between OH − and sulphide ions for Zn sites. The anodic layer on Zn in alkaline solution changes from a ZnS layer at high Na 2S concentration to a ZnO/Zn(OH) 2 layer in Na 2S-free solution. A complex layer, probably involving a defective ZnS layer with ZnO domains is produced within a certain OH −/sulphide ion concentration ratio range in the solution. The stability of these layers depends on the applied potential.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
