A highly active electrocatalyst for polymer electrolyte membrane fuel cell and a preparation method thereof
An electrolyte membrane, fuel cell technology, applied in fuel cells, battery electrodes, electrochemical generators, etc., can solve problems such as single-atom catalysts that have not been seen, and achieve the effect of improving interaction and stability
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[0028] Example 1:
[0029] Weigh 10g dicyandiamine and 0.1g nickel acetylacetonate, mix them mechanically, and then repeatedly grind for about 6 hours to mix them as evenly as possible. Place them in a tube furnace with argon as the inert protective gas. Heating rate of 1℃ / min, raise to 300℃, heat treatment for 3 hours, then continue heating to 600℃, continue the heat treatment for 3 hours, then raise the temperature to 800℃ again, heat treatment for 1 hour, and cool to room temperature in an inert atmosphere to obtain nickel Single atom dispersed carbon nanotube carrier. Weigh 0.1g of the above-mentioned carbon nanotube carrier and place it in a round-bottomed flask, add 150 ml of ethylene glycol, and ultrasonically disperse for 30 minutes to make the carbon nanotube carrier uniformly dispersed, and then add the PdCl needed to prepare 20wt% loading Pd nanoparticles 2 The salt solution is continuously stirred for 3 hours, then ascorbic acid is added as an auxiliary reducing agent...
Example Embodiment
[0031] Example 2:
[0032] Weigh 10g of dicyandiamine and 0.1g of iron acetylacetonate, mix them mechanically, and then repeatedly grind for about 6 hours to make the two mixed as evenly as possible. Place them in a tube furnace with argon as the inert protective gas. The temperature rise rate is 1°C / min, the temperature is increased to 300°C, heat treatment is performed for 3 hours, then the temperature is increased to 600°C, the heat treatment is continued for 3 hours, and then the temperature is raised to 900°C again, the heat treatment is performed for 1 hour, and the iron is cooled to room temperature in an inert atmosphere. Single atom dispersed carbon nanotube carrier. Weigh 0.1g of the above-mentioned carbon nanotube carrier and place it in a round-bottomed flask, add 150 ml of ethylene glycol, and ultrasonically disperse for 30 minutes to make the carbon nanotube carrier uniformly dispersed, and then add the PdCl needed to prepare 20wt% loading Pd nanoparticles 2 The sal...
Example Embodiment
[0034] Example 3:
[0035] Weigh 10g dicyandiamine and 0.1g copper acetylacetonate, mix them mechanically, and then repeatedly grind for about 6 hours to mix them as evenly as possible. Place them in a tube furnace with argon as the inert protective gas. The temperature rise rate is 1°C / min, the temperature is increased to 250°C, heat treatment is performed for 3 hours, then the temperature is increased to 600°C, the heat treatment is continued for 3 hours, and then the temperature is raised to 750°C again, the heat treatment is performed for 1 hour, and the copper is cooled to room temperature in an inert atmosphere. Single atom dispersed carbon nanotube carrier. Weigh 0.1g of the above-mentioned carbon nanotube carrier and place it in a round-bottomed flask, add 150 ml of ethylene glycol, and ultrasonically disperse for 30 minutes to make the carbon nanotube carrier uniformly dispersed, and then add PdCl required to prepare 30wt% loading Pd nanoparticles 2 The salt solution is ...
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