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Electrodeposition of Silver(I) Selenide from Aqueous Solutions of Thiocyanates

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Abstract

Silver(I) selenide that exhibits pronounced thermoelectric properties is electrodeposited from aqueous solutions containing thiocyanate complexes of silver(I) and Se(IV) compounds at рН 4.7. Ag2Se is formed at the cathodic potential more negative than –0.9 V (SHE). The coatings are characterized by the methods of scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and atomic-force microscopy (AFM). The stoichiometry of the cathodic deposit is close to Ag2Se. XRD studies demonstrated the formation of the orthorhombic modification of silver(I) selenide under electrodeposition conditions. The cathodic deposits have the columnar nanostructure.

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Authors and Affiliations

  1. Mendeleev University of Chemistry and Technology, Moscow, Russia

    V. V. Kuznetsov, E. A. Tyagnerev, A. V. Kapustin, V. Yu. Zhukov & E. A. Filatova

  2. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, Russia

    V. V. Kuznetsov

Authors
  1. V. V. Kuznetsov
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  2. E. A. Tyagnerev
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  3. A. V. Kapustin
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  4. V. Yu. Zhukov
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  5. E. A. Filatova
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Correspondence to V. V. Kuznetsov.

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Translated by T.Ya. Safonova

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Kuznetsov, V.V., Tyagnerev, E.A., Kapustin, A.V. et al. Electrodeposition of Silver(I) Selenide from Aqueous Solutions of Thiocyanates. Russ J Electrochem 59, 683–689 (2023). https://doi.org/10.1134/S1023193523090094

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  • DOI: https://doi.org/10.1134/S1023193523090094

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