NDLI: Zinc sulfide surface formation on Hg electrode during cyclic voltammetric scan: an implication for previous and future research studies on metal sulfide systems

Content Provider	Springer Nature Link
Author	Ciglenečki, I. Bura Nakić, E. Marguš, M.
Copyright Year	2011
Abstract	Cyclic voltammetry on the Hg electrode was used to investigate the electrochemical behavior of NaCl/NaHCO3 electrolyte solutions supersaturated with respect to Zn sulfide phases. The voltammetric results clearly show how an Hg electrode, due to exchange between Hg2+ from an HgSadlayer and Zn2+ from solution, becomes the site for surface ZnSadlayer formation in the potential range −0.45 to −0.6 V. The exchange reaction is reversible, and the surface-formed ZnSadlayer persists at the Hg electrode surface until −1.3 V during cathodic scans. Near −1.3 V, it is reduced. In the same solution, evidence for reduction of bulk Zn sulfide species including nanoparticles was not obtained. The approach emphasized here can be readily extended to any other system consisting of metal electrode and chalcogenide anions, pointing to the importance of choosing experimental conditions (i.e., deposition potential, stirring, and accumulation times) to avoid artifacts and wrong interpretation of data due to surface formation of metal sulfide species.
Starting Page	2041
Ending Page	2046
Page Count	6
File Format	PDF
ISSN	14328488
Journal	Journal of Solid State Electrochemistry
Volume Number	16
Issue Number	6
e-ISSN	14330768
Language	English
Publisher	Springer-Verlag
Publisher Date	2011-12-13
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Metal sulfides electrochemistry ZnS nanoparticles Hg electrode Cyclic voltammetry Analytical Chemistry Condensed Matter Physics Characterization and Evaluation of Materials Electrochemistry Energy Storage Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Materials Science Electrical and Electronic Engineering Electrochemistry

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