| Abstrakt: |
The solution of salts of iron, nickel, cobalt, copper and molybdenum (Fe2C2O4.2H2O, Ni2C2O4.2H2O, Co2C2O4.2H2O, Cu2C2O4.H2O, (NH4)2MoO3) reduces in hydrogen containing atmosphere of Ar + 5 at.% H2 at temperatures of 300, 400, 600, 800, 1000°C for 1 hour and at 1000°C for 2 hours. In addition, the powder, reduced at 1000°C for 2 hours, anneals in argon at 1200°C for 2 hours. By X-ray phase analyses, phase content of powders is determined at every stage of reduction. [ABSTRACT FROM AUTHOR] |
