A kind of cathode catalyst for fuel cell and preparation method thereof
A cathode catalyst, fuel cell technology
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Embodiment 1
[0037] Weigh 27mgCuCl respectively 2 2H 2 O and 467mg of hexadecyltrimethylammonium bromide were dissolved in 20ml of deionized water to obtain solution A; high-purity nitrogen gas was introduced into A to saturate for 30 minutes, 120mg of XC72 carbon carrier was added, ultrasonically mixed evenly, and added under vigorous stirring 108 mg KBH 4 , to obtain slurry B; 1ml of PtCl with a concentration of 5.6mgPt / ml 4 Mix the aqueous solution and 117mg of cetyltrimethylammonium bromide in 10ml of deionized water, and stir evenly to obtain solution C; add solution C to the slurry B aged for 4 hours under stirring, and react for 4 hours under the protection of high-purity nitrogen gas; Then add 20ml of isopropanol and stir for 4 hours to obtain slurry D; centrifugally wash slurry D, vacuum dry at 60°C for 10 hours, and grind to obtain solid powder E; 2 / N 2 (Volume ratio 1:5) After the atmosphere was heat treated at 300 degrees for 5 hours, it was treated in a perchloric acid so...
Embodiment 2
[0039] Weigh 54mgCuCl respectively 2 2H 2 O and 1.58g of dodecyltrimethylammonium bromide were dissolved in 40ml of deionized water to obtain solution A; high-purity nitrogen gas was introduced into A for saturation for 30 minutes, 30mg of KB300 carbon carrier was added, ultrasonically mixed evenly, and stirred vigorously Add 250mgKBH 4 , to obtain slurry B; 4.5ml concentration of 5.6mgPt / ml K 2 PtCl 4 Mix the aqueous solution and 395mg of dodecyltrimethylammonium bromide in 10ml of deionized water, and stir evenly to obtain solution C; add solution C to the slurry B aged for 5 hours under stirring, and react for 5 hours under the protection of high-purity nitrogen gas; Then add 30ml of isopropanol, stir for 3 hours to obtain slurry D; centrifugally wash slurry D, dry in vacuum at 60°C for 6 hours, grind to obtain solid powder E; treat in a hydrochloric acid solution with a pH of 1 for 4 hours, filter and wash, After vacuum drying at 60°C for 6 hours, a shell-type Pt / C cat...
Embodiment 3
[0041] Weigh 27mgCuCl respectively 2 2H 2 O and 467mg of hexadecyltrimethylammonium bromide were dissolved in 20ml of deionized water to obtain solution A; high-purity argon gas was passed into A for saturation for 30 minutes, 60mg of XC72 carbon carrier was added, ultrasonically mixed evenly, and added under vigorous stirring 34mgNaBH 4 , to obtain slurry B; 1ml of PtCl with a concentration of 5.6mgPt / ml 4 aqueous solution and 1ml of K at a concentration of 2mgPd / ml 2 PdCl 6 The aqueous solution was mixed in 10ml of deionized water, and stirred evenly to obtain solution C; under stirring, solution C was added to the slurry B aged for 4 hours, and reacted for 4 hours under the protection of high-purity argon; then 20ml of isopropanol was added, and the slurry was obtained after stirring for 4 hours Material D; slurry D was centrifugally washed, dried in vacuum at 60 degrees for 10 hours, and ground to obtain solid powder E; solid powder E was 2 / Ar (volume ratio 1:4) atmo...
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