A kind of preparation method of manganese dioxide composite material
A composite material, manganese dioxide technology, applied in chemical instruments and methods, manganese oxide/manganese hydroxide, carbon compounds, etc., can solve the problem that the specific surface area of graphene cannot be fully utilized, the conductivity of manganese dioxide is poor, and the powder is easy to Problems such as stacking and stacking, to achieve the effect of high practical value, low cost, and short production cycle
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0026] (1) Prepare graphene oxide aqueous solution, add 12mg graphene oxide to 12ml water to make a 1mg / mL solution, and ultrasonically disperse for more than 2 hours;
[0027] (2) The nickel foam of 10mm*10mm*2mm is washed with dilute hydrochloric acid, acetone and absolute ethanol for 10 minutes in sequence, and then washed with deionized water for 5 minutes; soak the cleaned nickel foam into the prepared graphene oxide In aqueous solution, during the ultrasonic process, the reaction temperature is 30°C, the frequency is 40KHz, repeated ultrasonic static, ultrasonic 30min, static 20min, repeated three times, the nickel foam material loaded with graphene oxide was obtained;
[0028] (3) Dry the nickel foam material loaded with graphene oxide, heat it in a tube furnace, protect it with nitrogen or argon, heat it to 400°C at a heating rate of 10°C / min, and keep it for 4h to obtain foamed nickel- Graphene oxide composite product;
[0029] (4) Soak the foamed nickel-graphene oxi...
Embodiment 2
[0031] (1) Prepare graphene oxide aqueous solution, add 9.6mg graphene oxide to 4.8ml water to make a 2mg / mL solution, and ultrasonically disperse for more than 2 hours;
[0032] (2) Soak 10mm*10mm*2mm nickel foam into the prepared graphene oxide aqueous solution. During the ultrasonic process, the reaction temperature is 40°C, the frequency is 40KHz, repeated ultrasonic static, ultrasonic 40min, static 30min, repeated three times to obtain the load Nickel foam material with graphene oxide;
[0033] (3) Dry the nickel foam material loaded with graphene oxide, heat it in a tube furnace, protect it with nitrogen or argon, heat it to 400 °C at a heating rate of 5 °C / min, and keep it for 4 hours to obtain foam nickel- Graphene oxide composite product;
[0034] (4) Soak the nickel foam-graphene oxide composite product in 8ml of potassium permanganate solution (solution concentration: 0.4mg / ml), add 2ml of ethylene glycol dropwise under the condition of magnetic stirring, and contr...
Embodiment 3
[0036] (1) Prepare graphene oxide aqueous solution, add 15mg graphene oxide to 3ml water to make a 5mg / mL solution, and ultrasonically disperse;
[0037] (2) The nickel foam of 10mm*10mm*2mm is cleaned with dilute hydrochloric acid, acetone and absolute ethanol in sequence, and then cleaned by deionized water; the cleaned foamed nickel is soaked in the prepared graphene oxide aqueous solution, During the ultrasonic process, the reaction temperature is 50°C, the frequency is 40KHz, repeated ultrasonic static, ultrasonic 50min, static 35min, repeated three times, the nickel foam material loaded with graphene oxide was obtained;
[0038] (3) Dry the nickel foam material loaded with graphene oxide, heat it in a tube furnace, protect it with nitrogen or argon, heat it to 600°C at a heating rate of 20°C / min, and keep it for 1h to obtain foamed nickel- Graphene oxide composite product;
[0039] (4) Soak the foamed nickel-graphene oxide composite product in 5ml of potassium permangan...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More