Preparation method of nanometer manganese sesquioxide with a hollow cone shape
A technology of manganese trioxide and hollow circle is applied in the field of nanomaterials to achieve the effects of easy control, novel structure and good application prospects
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Embodiment 1
[0016] Dissolve 0.1g of P123 in 30ml of deionized water, then add 30mg of carbon nanotubes, after ultrasonic dispersion, add 4ml of 0.2mol / L manganese nitrate solution, stir, ultrasonically disperse for 2 hours, then add dropwise 10ml of 0.1mol / L manganese nitrate solution into the solution Potassium manganate solution, then the mixed solution was transferred to a 50ml hydrothermal kettle, hydrothermally reacted at a temperature of 130°C for 6h, and finally cooled to room temperature, suction filtered, washed, and dried at 60°C for 6h. What is obtained is a homogeneously doped manganese dioxide hollow nanocone / carbon nanotube composite material (scanning electron microscope photos such as figure 1 shown), the product was transferred to a tube furnace and calcined at 550 °C in air for 4 h. What is obtained is a high-purity nano-Mn with a hollow cone shape 2 o 3 , transmission electron microscope pictures as figure 2 As shown, the XRD curve is as image 3 shown.
Embodiment 2
[0018] Dissolve 0.1g of P123 in 30ml of deionized water, then add 60mg of carbon nanotubes, after ultrasonic dispersion, add 1ml of 0.6mol / L manganese nitrate solution, stir, ultrasonically disperse for 2 hours, then add 10ml dropwise to the solution with a concentration of 0.1mol / L Potassium permanganate solution, then the mixed solution was transferred to a 50ml hydrothermal kettle, hydrothermally reacted at a temperature of 120°C for 5h, and finally cooled to room temperature, suction filtered, washed, and dried at 60°C for 6h. The homogeneously doped manganese dioxide hollow nanocone / carbon nanotube composite material was obtained. The product was transferred to a tube furnace and calcined at 550° C. for 6 hours in air. What is obtained is a high-purity nano-Mn with a hollow cone shape 2 o 3 .
Embodiment 3
[0020] Dissolve 0.1g of P123 in 30ml of deionized water, then add 30mg of activated carbon, after ultrasonic dispersion, add 1.5ml of 0.5mol / L manganese nitrate solution, stir, ultrasonically disperse for 2 hours, then add dropwise 10ml of 0.1mol / L permanganese into the solution Potassium acid potassium solution, then the mixed solution was transferred to a 50ml hydrothermal kettle, hydrothermally reacted at a temperature of 120°C for 6h, and finally cooled to room temperature, suction filtered, washed, and dried at 60°C for 6h. The homogeneously doped manganese dioxide hollow nanocone / activated carbon composite material was obtained. The product was transferred to a tube furnace and calcined at 550°C for 2 hours in air. What is obtained is a high-purity nano-Mn with a hollow cone shape 2 o 3 .
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