Issue 19, 2015
From the journal:

Physical Chemistry Chemical Physics

Nonstoichiometry of nanocrystalline monoclinic silver sulfide†

S. I. Sadovnikov,a   A. I. Gusev*a  and  A. A. Rempelab  

* Corresponding authors

a Institute of Solid State Chemistry, Ural Branch of the Russian Academy of Sciences, Ekaterinburg 620990, Russia
E-mail: gusev@ihim.uran.ru

b Ural Federal University named after the First President of Russia B.N. Yeltsin, Ekaterinburg 620002, Russia

Abstract

Powders of silver sulfide have been synthesized by chemical bath deposition from aqueous solutions of silver nitrate and sodium sulfide in the presence of sodium citrate or EDTA–H2Na2. Colloid solutions have been prepared by a chemical condensation method from the same aqueous solutions. Synthesized silver sulfide nanopowders have a monoclinic (space group P21/c) acanthite-type structure but the occupancy of the metal sublattice sites by Ag atoms is smaller than 1. Unlike coarse-crystalline silver sulfide Ag2S, silver sulfide nanopowders with particles sizes of less than ∼50 nm are nonstoichiometric, contain vacant sites in the metal sublattice and have a composition of ∼Ag1.93S.

Graphical abstract: Nonstoichiometry of nanocrystalline monoclinic silver sulfide

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Article information

DOI
https://doi.org/10.1039/C5CP00650C
Article type
Communication
Submitted
02 Feb 2015
Accepted
18 Apr 2015
First published
28 Apr 2015

Phys. Chem. Chem. Phys., 2015,17, 12466-12471

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Nonstoichiometry of nanocrystalline monoclinic silver sulfide

S. I. Sadovnikov, A. I. Gusev and A. A. Rempel, Phys. Chem. Chem. Phys., 2015, 17, 12466 DOI: 10.1039/C5CP00650C

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