Silver(I) Oxide on Silver–Zinc Alloys: Anodic Formation and Properties

Anodic formation in deoxygenated 0.1 М KOH solution of Ag(I) oxide on Ag–Zn alloys with zinc atomic fraction from 5 to 30 at % and its properties were examined using cyclic voltammetry supplemented by photoelectrochemical measurements. Phase composition of the alloys is confirmed by X-ray diffractio...

Full description

Saved in:
Bibliographic Details
Published inRussian journal of electrochemistry Vol. 55; no. 7; pp. 680 - 689
Main Authors Murtazin, M. M., Nesterova, M. Yu, Grushevskaya, S. N., Vvedenskii, A. V.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.07.2019
Springer Nature B.V
Subjects
Chemistry
Chemistry and Materials Science
Deoxygenation
Electrochemistry
Morphology
Phase composition
Photoelectric effect
Photoelectric emission
Physical Chemistry
Resistance
Silver base alloys
Silver oxides
Space charge
Zinc
photopotential
silver oxide
anodic oxidation
silver–zinc alloys
photocurrent
Online AccessGet full text

Cover

More Information
Summary:Anodic formation in deoxygenated 0.1 М KOH solution of Ag(I) oxide on Ag–Zn alloys with zinc atomic fraction from 5 to 30 at % and its properties were examined using cyclic voltammetry supplemented by photoelectrochemical measurements. Phase composition of the alloys is confirmed by X-ray diffraction analysis. Surface morphology is studied using scanning electron microscope. Ag(I) oxide anodically formed on silver–zinc alloys is shown possessing n -type conductance, with dominating donor defects. The donor defect concentration in the Ag(I) oxide increases, as the zinc content in the alloy grows, and this leads to a decrease in the maximum photocurrent and to narrowing of the space charge region. With the increasing of the zinc concentration in the alloy, the Ag 2 O particles’ size decreases and their surface density increases.
ISSN:1023-1935
1608-3342
DOI:10.1134/S1023193519070085