Preparation method and use of egg yolk type manganese dioxide microspheres
A manganese dioxide, egg yolk type technology, applied in chemical instruments and methods, manganese oxide/manganese hydroxide, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems affecting the performance of manganese dioxide, etc., To achieve the effect of easy operation, mild conditions and simple process
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0036] Under the condition of mechanical stirring, add 1.43 g of manganese sulfate monohydrate into a 500 mL beaker filled with 100 mL of deionized water and 10 mL of absolute ethanol. After completely dissolving, add 100 mL of dissolved 2.26 g of bicarbonate Aqueous ammonium solution was stirred for 3 h until the end of the reaction. The reaction solution was washed by centrifugation (1000 rpm, 2 min) to remove the turbid liquid in the upper layer, and washed several times with deionized water until the upper layer was a clear solution after centrifugation. Put the product in 60 o Dry in a C blast oven to obtain dry MnCO 3 powder.
[0037] Take 100 mg of dried MnCO 3 The powder was dispersed into 10 mL of deionized water, and 60 mL of 1.5 mmol / L KMnO was added dropwise 4 The aqueous solution was reacted for 8 h to obtain a manganese dioxide dispersion.
[0038] Add 0.5 M HCl dropwise to the manganese dioxide dispersion until the system becomes strongly acidic and contin...
Embodiment 2
[0040] Under the condition of mechanical stirring, add 1.43 g of manganese sulfate monohydrate into a 500 mL beaker filled with 100 mL of deionized water and 10 mL of absolute ethanol. After completely dissolving, add 100 mL of dissolved 2.26 g of bicarbonate Aqueous ammonium solution was stirred for 3 h until the end of the reaction. The reaction solution was washed by centrifugation (1000 rpm, 2 min) to remove the turbid liquid in the upper layer, and washed several times with deionized water until the upper layer was a clear solution after centrifugation. Put the product in 60 o Dry in a C blast oven to obtain dry MnCO 3 powder.
[0041] Take 100 mg of dried MnCO 3 The powder was dispersed into 10 mL of deionized water, and 18 mL of 10 mmol / L KMnO was added dropwise 4 The aqueous solution was reacted for 3 h to obtain a manganese dioxide dispersion.
[0042] Add dropwise 3 M H to the manganese dioxide dispersion 2 SO 4 Stirring was continued for 12 h until the syste...
Embodiment 3
[0044] Under the condition of mechanical stirring, add 2.86 g of manganese sulfate monohydrate into a 500 mL beaker filled with 100 mL of deionized water and 10 mL of absolute ethanol. Aqueous ammonium solution was stirred for 3 h until the end of the reaction. The reaction solution was washed by centrifugation (1000 rpm, 2 min) to remove the turbid liquid in the upper layer, and washed several times with deionized water until the upper layer was a clear solution after centrifugation. Put the product in 60 o Dry in a C blast oven to obtain dry MnCO 3 powder.
[0045] Take 100 mg of dried MnCO 3 The powder was dispersed into 10 mL of deionized water, and 72 mL of 5 mmol / L KMnO was added dropwise 4 The aqueous solution was reacted for 10 h to obtain a manganese dioxide dispersion.
[0046] Add 0.5 M HCl dropwise to the manganese dioxide dispersion until the system becomes strongly acidic and continue stirring for 12 h. Centrifuge the manganese dioxide in the reaction solu...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More