Ahmad Ghaderi Hamidi
Department of Metallurgy and Materials Engineering, Hamadan University of Technology, Hamadan, Iran
[ 1 ] - Effects of Fe2O3 addition and mechanical activation on thermochemical heat storage properties of the Co3O4/CoO system
Effects of Fe2O3 addition (2-20 wt%) with 1 h mechanical activation on redox reactions of Co3O4 were studied by TG/DSC, SEM, and XRD analyses. The results showed that a Fe2O3 addition from 2 to 15 wt% increases the oxygen release from 1.4 to 3.4 wt% and decreases the reduction onset temperature from 1030 to 960 °C, while it increases the oxygen uptake value and re-oxidation onset temperature re...
[ 2 ] - Thermochemical Heat Storage Properties of Co3O4-X wt % Al2O3 and Co3O4-X wt % Y2O3 Composites (X=1, 2, 5, 8, 10)
The effect of Al2O3 (1-10 wt %) and Y2O3 (1-10 wt %) additions on thermochemical heat storage properties of Co3O4/CoO system was investigated by thermogravimetry, XRD, and SEM analyses. Results showed that the addition of Al2O3 to Co3O4 at constant 8 h mechanical activation improved the...
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