Journals / Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering / 1999 / Cilt: 45
STUDIES ON THE HETEROGENEOUS REACTION BETWEEN ZnO- (NH4)2O.4MOO3
- Journal
- Communications Faculty of Sciences University of Ankara Series B Chemistry and Chemical Engineering
- Issue
- 1999 · Cilt: 45
- Pages
- 1–1
- DOI
- —
Abstract
The formation of ZnMoO4 and ZnjMojO? were studied using x-ray diffraction analysis, IR, DTA- TG, electrical conductivity, elemental analysis and surface acidity measurements. The concentration of acidic sites on the surface of MoOj-ZnO system was studied and the results illustrated a maxima at ZnO - MoOj (20-80%) at a calcination temperature of 600°C. The stability of the ZnMoO4 and Zn^MojO^ phases were studied at 600 and 750°C. The ZhjMojO.) phase is stable at lower temperature and disappears at temperatures above - 700°C