A kind of precursor preparation method of platinum series catalyst
A platinum-based catalyst and precursor technology, which is applied in the field of platinum-based catalyst precursor preparation, can solve the problems of increasing catalyst preparation cost, cumbersome cleaning steps, etc., and achieves the effect of improving the utilization rate of catalytic rate, rational distribution and combination, and simple process
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Embodiment 1
[0034] Commercially available [Pt(NH 3 ) 4 ]Cl 2 Dissolve in deionized water and configure a solution with a mass concentration of 1%, place 110 grams of commercially available DuPont Nafion211 membrane (H type) in the solution, carry out ion exchange under normal temperature conditions, and the immersion time is 12h; containing [Pt(NH 3 ) 4 ] 2+ The ionized Nafion211 membrane was washed repeatedly with deionized water, dried in the shade, and immersed in 0.5% H 2 C 2 o 4 In the ethanol solution, ion exchange was carried out at room temperature, and the immersion time was 12 hours; after the immersion was completed, the solution was filtered, the white precipitate was collected, and dried under reduced pressure at 90°C to obtain a precursor without CL-platinum catalyst White powder; The 0.726g white powder that will make is dissolved in 10ml deionized water and is made into solution, and adds the commercially available carbon black carrier of 0.6g (the catalyst carrier ...
Embodiment 2
[0036] Commercially available [Pt(NH 3 ) 4 ]Cl 2 Dissolve in deionized water and configure a solution with a mass concentration of 1%, place 110 grams of commercially available DuPont Nafion211 membrane (H type) in the solution, carry out ion exchange under normal temperature conditions, and the immersion time is 12h; containing [Pt(NH 3 ) 4 ] 2+ The ionized Nafion211 membrane was washed repeatedly with deionized water, dried in the shade, and immersed in CH with a mass concentration of 0.5%. 3In the COOH ethanol solution, ion exchange was carried out at room temperature, and the immersion time was 12 hours; after the immersion was completed, the solution was filtered, the white precipitate was collected, and dried under reduced pressure at 90°C to obtain a precursor without CL-platinum catalyst body white powder; the prepared 0.783g white powder is dissolved in 10ml deionized water to form a solution, and the commercially available carbon black carrier of 0.6g is added i...
Embodiment 3
[0038] Commercially available [Pt(NH 3 ) 4 ] Cl 2 Dissolve in deionized water and configure a solution with a mass concentration of 1%, place 110 grams of commercially available DuPont Nafion211 membrane (H type) in the solution, carry out ion exchange under normal temperature conditions, and the immersion time is 12h; containing [Pt(NH 3 ) 4 ] 2+ The ionized Nafion211 membrane was washed repeatedly with deionized water, dried in the shade, and immersed in NaHCO with a mass concentration of 0.5%. 3 In the ethanol solution, ion exchange was carried out at room temperature, and the immersion time was 12 hours; after the immersion was completed, the solution was filtered, the white precipitate was collected, and dried under reduced pressure at 90°C to obtain a precursor without CL-platinum catalyst White powder; The 0.798g white powder that will make is dissolved in 10ml deionized water and is made into solution, and adds the commercially available carbon black carrier of 0....
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