A kind of preparation method of platinum carbon catalyst with high loading capacity for fuel cell
A platinum-carbon catalyst with high loading capacity, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of reduced catalyst activity, easy agglomeration of active components, uneven dispersion, etc., and achieve uniform platinum particle size and uniform dispersion , good catalytic activity
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0033] 1) Accurately measure 4 g of sodium acetate solution in 50 ml of water, stir well, then add 0.5 g of tetraammine platinum acetate containing platinum, stir for 5 hours, and record it as A;
[0034] 2) Accurately weigh 0.5 g of carbon black and add it into deionized water containing 0.05 g of N-methyl-2-pyrrolidone, stir for 5 hours to make it evenly mixed, and obtain B;
[0035] 3) Add one-third of A dropwise to the carbon black carrier aqueous solution system B at 0.5mL / s, stir and impregnate for 20h, then add one-half of the remaining A to the carbon black carrier dropwise at 0.5mL / s In the aqueous solution system B, stir and impregnate for 20 hours, and finally add the remaining A dropwise to the carbon black carrier aqueous system B at 0.5mL / s, and stir and impregnate for 20 hours to obtain the system C;
[0036] 4) Slowly add sodium hydroxide with a concentration of 2 mol / L dropwise into system C, adjust the adjusted pH value to 8, and obtain system D;
[0037] 5)...
Embodiment 2
[0040] 1) Accurately weigh 4.8g of sodium acetate solution in 50ml of water, stir evenly, then add 0.6g of tetraammine platinum acetate containing platinum, stir for 5 hours, and record it as A;
[0041] 2) Accurately weigh 0.4 g of carbon black and add it into deionized water containing 0.06 g of N-methyl-2-pyrrolidone, stir for 5 hours to make it evenly mixed, and obtain B;
[0042] 3) Add one-third of A dropwise to the carbon black carrier aqueous solution system B at 0.5mL / s, stir and impregnate for 20h, then add one-half of the remaining A to the carbon black carrier dropwise at 0.5mL / s In the aqueous solution system B, stir and impregnate for 20 hours, and finally add the remaining A dropwise to the carbon black carrier aqueous system B at 0.5mL / s, and stir and impregnate for 20 hours to obtain the system C;
[0043] 4) Slowly add sodium hydroxide with a concentration of 2 mol / L dropwise into system C, adjust the adjusted pH value to 8, and obtain system D;
[0044] 5) ...
Embodiment 3
[0047] 1) Accurately measure 5.6 g of sodium acetate solution in 50 ml of water, stir well, then add 0.7 g of tetraammine platinum acetate containing platinum, stir for 5 hours, and record it as A;
[0048] 2) Accurately weigh 0.3 g of carbon black and add it into deionized water containing 0.07 g of N-methyl-2-pyrrolidone, stir for 8 hours to make it evenly mixed, and obtain B;
[0049] 3) Add one-third of A dropwise to the carbon black carrier aqueous solution system B at 1.0mL / s, stir and impregnate for 24 hours, then add one-half of the remaining A to the carbon black carrier dropwise at 1.0mL / s In the aqueous solution system B, stir and impregnate for 24 hours, and finally add the remaining A dropwise to the carbon black carrier aqueous system B at 1.0 mL / s, and stir and impregnate for 24 hours to obtain the system C;
[0050] 4) Slowly add sodium hydroxide with a concentration of 2 mol / L dropwise into system C, adjust the adjusted pH value to 12, and obtain system D;
...
PUM
| Property | Measurement | Unit |
|---|---|---|
| particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More