A kind of preparation method of platinum-based/nitrogen-doped carbon quantum dot-carbon nanotube catalyst
A technology of carbon nanotubes and carbon quantum dots, which is applied in the field of preparation of new platinum-based catalyst carriers, can solve problems such as unsatisfactory specific surface area, and achieve the effects of simple and feasible preparation methods, improved activity, and enhanced electrocatalytic activity
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specific Embodiment approach 1
[0029] Specific embodiment 1: In this embodiment, a platinum-based / nitrogen-doped carbon quantum dot-carbon nanotube catalyst is prepared according to the following steps:
[0030] Weigh 1.0 g of ethylenediaminetetraacetic acid and 20mL of deionized water and mix, ultrasonically disperse for 1 h; weigh 20 mg of carbon nanotubes and mix with ethylenediaminetetraacetic acid solution, and place the mixture in a 50mL Teflon sealed tank In the medium, hydrothermally heated at 140°C for 1 h, washed with deionized water after cooling to room temperature, and dried in vacuum at 80°C to obtain nitrogen-doped carbon quantum dot-carbon nanotube carrier. The platinum-based catalyst is prepared by a microwave-assisted ethylene glycol reduction method.
specific Embodiment approach 2
[0031] Embodiment 2: In this embodiment, a platinum-based / nitrogen-doped carbon quantum dot-carbon nanotube catalyst is prepared according to the following steps:
[0032] Weigh 3.0 g of citric acid, urea (1:1) and 20 mL of deionized water, and disperse ultrasonically for 2 h; weigh 20 mg of carbon nanotubes and mix with the solution, and place the mixture in a 50 mL Teflon sealed tank In the medium, hydrothermally heated at 160 ℃ for 4 h, washed with deionized water after cooling to room temperature, and dried in vacuum at 60 ℃ to obtain nitrogen-doped carbon quantum dot-carbon nanotube carrier. The platinum-based catalyst is prepared by a microwave-assisted ethylene glycol reduction method.
specific Embodiment approach 3
[0033] Specific embodiment 3: In this embodiment, a platinum-based / nitrogen-doped carbon quantum dot-carbon nanotube catalyst is prepared according to the following steps:
[0034] Weigh 2.0 g glucose, glycine (1:1) and 20 mL deionized water, and disperse ultrasonically for 3 h; weigh 20 mg carbon nanotubes and mix with the solution, and place the mixture in a 50 mL Teflon sealed tank , Hydrothermally heated at 180°C for 8 hours, washed with deionized water after cooling to room temperature, and dried in vacuum at 80°C to obtain nitrogen-doped carbon quantum dot-carbon nanotube carrier. The platinum-based catalyst is prepared by a microwave-assisted ethylene glycol reduction method.
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