Premium
Extended glass‐forming region in the AgCl‐Ag 2 S‐As 2 S 3 ternary system
Author(s) -
Li Lei,
Xu Shaohua,
Yin Haiwei,
Wang Yang,
Zeng Huidan,
Chen Guorong
Publication year - 2018
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.15543
Subject(s) - devitrification , crystallization , ternary operation , raman spectroscopy , materials science , x ray photoelectron spectroscopy , ternary numeral system , analytical chemistry (journal) , phase (matter) , spectroscopy , electrochemistry , mineralogy , crystallography , electrode , chemical engineering , chemistry , optics , physics , organic chemistry , chromatography , quantum mechanics , engineering , computer science , programming language
Abstract In the present work, glass formation property of the AgCl‐Ag 2 S‐As 2 S 3 ternary system is investigated. An extended glass‐forming region rich in the AgCl content (up to 80 mol.%) is observed. It is also found that there exists a small devitrification domain dividing the whole glass‐forming region into two parts. XRD analyses confirm that the precipitated crystals in the crystallized samples are pure AgCl, or Xanthoconite and Proustite Ag 3 AsS 3 , depending on the Ag 2 S/As 2 S 3 ratio and the AgCl content. Structural evolutions of the selected samples 15AgCl‐ yA g 2 S‐ zA s 2 S 3 are examined by high‐resolution XPS , and Raman spectroscopy. The crystallization mechanisms are studied comprehensively by SEM , DSC , and XRD measurements, and tentatively assigned to the presence of phase separation. The results reported in this article are expected to serve as a guide for the selection of suitable electrode materials for electrochemical applications.