Results of X-ray phase analysis were used to construct the phase diagram of the system CuO-Fe 2 O 3 -Sb 2 O 4 -O 2 at 1000°C in air. Two Cu 2 x Fe 4-3 x Sb x O 6 solid solutions (0 ≤ x ≤ 0.154 and 0.923 ≤ x ≤ 1) of, respectively, hematite and bixbyite ...
A diagram of preparation process is shown in Fig. 1. 2.2. Characterization The crystalline structure of catalysts was determined by X-ray powder diffraction (XRD) using a X-ray diffractometer (PANalytical X’Pert-Pro) using a Cu-Ka monochromatized radiation source and a Ni filter in the ...
Results of X-ray phase analysis were used to construct the phase diagram of the system CuO-Fe 2 O 3 -Sb 2 O 4 -O 2 at 1000°C in air. Two Cu 2 x Fe 4-3 x Sb x O 6 solid solutions (0 ≤ x ≤ 0.154 and 0.923 ≤ x ≤ 1) of, respectively, hematite and bixbyite ...
The phase equilibria in the solid state in the system FeVO 4 –Cu 3 V 2 O 8 and FeVO 4 –CuO have been determined. Based on the obtained DTA and XRD analysis results and some additional research, a phase diagram in the whole subsolidus area of the system CuO–V 2 O 5 –Fe 2 O...