STUDIES ON THE HETEROGENEOUS REACTION BETWEEN ZnO- (NH4)2O.4MOO3

Authors : Z.a. OMRAN

Pages : 0-0

Doi:10.1501/Commub_0000000378

View : 7 | Download : 6

Publication Date : 1999-01-01

Article Type : Research Paper

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 insert ignore into journalissuearticles values(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
Keywords : formation, x ray, electrical conductivity