Structural changes in silver iodide upon mechanochemical treatment

Abstract

Finely dispersed powder of AgI has been investigated using the mechanochemical method. The crys tal size was determined by scanning electron microscopy, and the crystal element composition was estimated using X ray microanalysis. The diameter of powder particles was 500-1000 nm. Their surface is characterized by an expressed faceting attributable to the hexagonal phase β AgI. The particle surface contains finer crystals with a characteristic size of ∼40 nm. The obtained results are discussed within the scope of the model.

Modification of silver iodide particles caused by a flow of electrons

“…A fine crystalline powder of AgI obtained by an exchange reaction of aqueous solutions of AgNO 3 and KI [12]: AgNO 3 + KI → AgI + KNO 3 was used as the initial material.…”

“…Special attention is paid to an interphase interac tion and the possibility for the surface modification [12,13]. For example, a reduction of silver iodide, which is used by synthesizing new superionic materials [14][15][16][17][18].…”