Synthesis, Thermodynamic Properties, and Structural Characteristics of Multicomponent Compounds in the Ag–Ni–Sn–S System

To establish an accurate thermodynamic database of the Ag–Ni–Sn–S system, only a few experimental studies have been published. There is no published work with values quaternary compounds system. Therefore, main objective this was to determine properties multicomponent phases in system and contribute new data for relatively better known temperature compositional ranges that not studied experimentally before. achieve these objectives, T–x space region SnS–SnS2–NiS2–NiS–Ag2S–SnS by x-ray phase diffraction modified electromotive force (EMF) methods. The existence AgNiS2, Ag2NiS2, Ag2NiSnS4, Ag2NiSn3S8 below 600 K established. synthesis carried out positive electrodes electrochemical cells (ECCs). standard functions were determined from dependencies EMF ECCs. crystal structure modification compound analysis.