Communications

Oxidation stability of solid-phase ZnS–Ag₂S heteronanostructures

S. I. Sadovnikov, A. I. Gusev

Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, 620990 Ekaterinburg, Russian Federation

Abstract: The stability of the phase composition of sulfide heteronanostructures (ZnS)(Ag₂S)_x with x = 0.025–0.50 has been investigated for the first time. Annealing of such heteronanostructures in air at temperatures from 298 to 800 K and higher leads to a change in their phase composition due to the oxidation of cubic zinc sulfide to hexagonal zinc oxide. The weight loss that occurs during heating from ~320 to ~700–750 K is associated with the onset of oxidation of zinc sulfide and the formation of zinc oxide.

Keywords: chemical co-precipitation, heteronanostructure (ZnS)(Ag₂S)_x, composition stability, phase composition, oxidation, silver, zinc sulfide.

Received: 04.06.2025
Accepted: 09.07.2025

Language: English

DOI: 10.71267/mencom.7837

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