Silver insertion mode in β-AgxV2O5 tunnel structure

Abstract

The β-Ag x V 2 O 5 phase of silver vanadate has a large homogeneity range, 0.29≤x≤0.41; the (V 2 O 5 ) n network of its crystal structure is typical of the β phase of the vanadium oxide bronzes with its oxygenated tunnels running along [010]. Ag atoms are inserted in a novel manner, being distributed onto two distinct crystallographic sites, which explains the overstepping of the theoretical boundary limit of the β phases, x=0.33