PtNi/C alloy catalyst, preparation method thereof and application of PtNi/C alloy catalyst
An alloy catalyst and catalyst technology, applied in the field of electrochemistry, can solve the problems of PtNi alloy catalyst complicated process, catalyst dispersion and stability need to be improved, etc.
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Embodiment 1
[0033] (1) Accurately weigh 26.57mg K 2 PtCl 4 (0.064mmol), 16.44mg Ni(acac) 2 (0.064mmol) and 50.00mg Vulcan XC-72, added to 5.0mL oleic acid, stirred at room temperature for 0.5h;
[0034] (2) Accurately weigh 5.0 mL of oleylamine, and add it to the mixed solution in (1), so that the volume ratio of oleylamine to oleic acid is 1:1;
[0035] (3) Put the solution in (2) in an oil pan at 250°C for 1.0 h under magnetic stirring to obtain a brown-black sol-like liquid;
[0036] (4) Add ethanol to the brown-black liquid in (3), centrifuge, then wash 5 times with a mixed solution of deionized water and ethanol, place the separated product in a vacuum drying oven at 60°C, and dry for 12 hours to obtain PtNi / C alloy catalyst.
Embodiment 2
[0038] (1) Accurately weigh 26.57mg K 2 PtCl 4 (0.064mmol), 16.44mg Ni(acac) 2 (0.064mmol) and 50.00mg Vulcan XC-72, added to 5.0mL oleic acid, stirred at room temperature for 0.5h;
[0039] (2) Accurately weigh 5.0 mL of oleylamine, and add it to the mixed solution in (1), so that the volume ratio of oleylamine to oleic acid is 1:1;
[0040] (3) Put the solution in (2) in an oil pan at 230°C for 3.0 hours under magnetic stirring to obtain a brown-black sol-like liquid;
[0041] (4) Add ethanol to the brown-black liquid in (3), centrifuge, then wash 5 times with a mixed solution of deionized water and ethanol, place the separated product in a vacuum drying oven at 60°C, and dry for 12 hours to obtain PtNi / C alloy catalyst.
[0042] Depend on figure 2 It can be seen that the PtNi / C nanoparticles prepared according to Example 2 are in granular form, the particle size distribution is between 7-13 nm, and the average particle size is 9.8 nm.
[0043] Depend on image 3 It ca...
Embodiment 3
[0048] (1) Accurately weigh 26.57mg K 2 PtCl 4 (0.064mmol), 16.44mg Ni(acac) 2 (0.064mmol) and 50.00mg Vulcan XC-72, added to 5.0mL oleic acid, stirred at room temperature for 0.5h;
[0049] (2) Accurately weigh 5.0 mL of oleylamine, and add it to the mixed solution in (1), so that the volume ratio of oleylamine to oleic acid is 1:1;
[0050] (3) Put the solution in (2) in an oil pan at 210°C for 6.0 hours under magnetic stirring to obtain a brown-black sol-like liquid;
[0051] (4) Add ethanol to the brown-black liquid in (3), centrifuge, then wash 5 times with a mixed solution of deionized water and ethanol, place the separated product in a vacuum drying oven at 60°C, and dry for 12 hours to obtain PtNi / C alloy catalyst.
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