Preparation method of high-entropy oxide with good infrared radiation performance
A technology of infrared radiation and oxide, applied in the field of infrared radiation materials, can solve the problems of high raw material cost, long cycle, uncontrollable, etc.
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Embodiment 1
[0030] Weigh CuO11.933g (0.15mol), MnO 2 13.041g (0.15mol), ZnO12.207g (0.15mol), Fe 2 o 3 11.977g (0.075mol) powder; according to the mass ratio of ball: material: water 4:1:3, pour the ball mill beads, raw materials and ultrapure water into the ball mill jar; and place the ball mill jar on the ball mill station for 1 hour Ball milling at a speed of 450r / min, followed by a pause of 10 minutes, as a ball milling cycle, after 10 minutes, ball milling for 1 hour at a speed of 450r / min, and a total of 7 hours of ball milling to obtain a mixed powder; then the mixed powder obtained after ball milling was dried , Put it in a box-type resistance furnace after grinding, heat up to 650°C in air atmosphere (heating rate is 14°C / min), calcined for 7 hours, and then air quenched and cooled to room temperature to obtain single-phase (Cu, Mn, Zn, Fe) 3 o 4 High entropy oxide powder.
[0031] figure 1 For the as-prepared (Cu, Mn, Zn, Fe) 3 o 4 XRD patterns of high-entropy oxides, wh...
Embodiment 2
[0037] Weigh CuO11.933g (0.15mol), MgO6.045g (0.15mol), Cr 2 o 3 11.399g (0.075mol), TiO 2 11.985g (0.15mol) powder; according to the mass ratio of ball: material: water 2:1:3, pour the ball mill beads, raw materials and ultrapure water into the ball mill jar; and place the ball mill jar on the ball mill station for 1 hour Ball milling at a speed of 300r / min, followed by a pause of 10min, as a ball milling cycle, after 10min, ball milling for 1 hour at a speed of 300r / min, and a total of 5 hours of ball milling to obtain a mixed powder; then the mixed powder obtained after ball milling was dried, After grinding, place it in a box-type resistance furnace, heat up to 500°C in air atmosphere (heating rate is 10°C / min), calcinate for 1 hour, and then cool to room temperature with the furnace to obtain single-phase (Cu, Mg, Cr, Ti ) 3 o 4 High entropy oxides.
[0038] Figure 6 For the prepared (Cu, Mg, Cr,Ti) 3 o 4 XRD patterns of high-entropy oxides, which are consistent ...
Embodiment 3
[0041] Weigh CuO11.933g (0.15 mol), Cr 2 o 3 11.399g (0.075mol), Co 3 o 4 12.040g (0.05mol), TiO 2 11.985g (0.15 mol) powder; according to the mass ratio of ball: material: water 4:1:3, pour the ball mill beads, raw materials and ultrapure water into the ball mill jar; Ball milling for 1 hour at a speed of 400r / min, followed by a pause of 10min, as a ball milling cycle, after 10min, ball milling for 1 hour at a speed of 400r / min, and a total of 9 hours of ball milling to obtain a mixed powder; then the mixed powder after ball milling was dried , Put it in a box-type resistance furnace after grinding, heat up to 970°C in air atmosphere (heating rate is 11°C / min), calcinate for 2 hours, and then cool to room temperature with the furnace to obtain single-phase (Cu, Cr, Co, Ti ) 3 o 4 High entropy oxides.
[0042] Figure 7 As prepared (Cu, Cr, Co, Ti) 3 o 4 XRD patterns of high-entropy oxides, which are consistent with Fe with spinel structure in the ICDD database 3 o ...
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