Preparation of cuprous ion-conducting glasses in the system CuICu 2OMoO 3

Abstract

The glass formation was tried in the systems CuICu 2OM m O n , where M m O n is B 2O 3, V 2O 5, MoO 3 or WO 3. The glasses, however, were only obtained in the CuICu 2OMoO 3 system. The glass-forming region was mainly found in pseudobinary system CuICu 2MoO 4, similar to glasses in the system AgIAg 2OMoO 3. Glass transition temperatures range from 125 to 150°C and do not change so much with CuI content while they increase with an increase in MoO 3 content. The IR spectra showed that the pseudobinary glasses were only composed of Cu +, I − and monomer MoO 4 2− ions, and classified as “ionic” glasses containing one type of cations. The molar volume of the glasses in the pseudobinary system was primarily determined by a fairly dense packing of the constituent anions, I − and MoO 4 2−.