Pt/MoS2 nano catalyst and preparation method and application thereof
A nano-catalyst and nano-sheet technology, which can be used in catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc., can solve the problem of high price, and achieve the effect of less special equipment, easy separation, and high catalytic activity.
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[0040] Example 1
[0041] Pt / MoS 2 Preparation of nanocatalyst
[0042] (1) Mix (NH 4 ) 6 Mo 7 O 24 ·4H 2 O and thiourea dissolved in deionized water, (NH 4 ) 6 Mo 7 O 24 ·4H 2 The mass of O is 1.22g, the mass of thiourea is 1.07g, and the volume of deionized water is 34mL. After stirring for 40 minutes, the hydrothermal reaction is carried out. The temperature of the hydrothermal reaction is 218℃, and the time of the hydrothermal reaction is 17.5h. Cool to room temperature, centrifuge the solid material cooled to room temperature, the speed of centrifugation is 7600 rpm, the time of centrifugation is 5 minutes, the product obtained by centrifugation is ultrasonically washed with a polar solvent for 2 minutes, and then the centrifugal separation is continued , The speed of centrifugation is 7600 rpm, the time of centrifugation is 7 minutes, and then the product obtained by centrifugation is ultrasonically washed with a polar solvent for 1 min, and dried under vacuum at 61°C overnigh
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[0045] Example 2
[0046] Pt / MoS 2 Preparation of nanocatalyst
[0047] (1) Under stirring at room temperature, (NH 4 ) 6 Mo 7 O 24 ·4H 2 O and thiourea dissolved in deionized water, (NH 4 ) 6 Mo 7 O 24 ·4H 2 The mass of O is 1.21g, the mass of thiourea is 1.05g, the volume of deionized water is 34mL, and the hydrothermal reaction is carried out after stirring for 40min. The temperature of the hydrothermal reaction is 215℃, the time of the hydrothermal reaction is 17h, and then cooling To room temperature, centrifuge the solid material cooled to room temperature at 7000 rpm, and the time of centrifugation is 5 minutes. The product obtained by centrifugation is ultrasonically washed with a polar solvent for 2 minutes, and then the centrifugal separation is continued. The speed of centrifugation was 7000 rpm, the time of centrifugation was 5 min, and the product obtained by centrifugation was ultrasonically washed with a polar solvent for 1 min, and dried under vacuum at 58°C overnigh
Example Embodiment
[0050] Example 3
[0051] Pt / MoS 2 Preparation of nanocatalyst
[0052] (1) Mix (NH 4 ) 6 Mo 7 O 24 ·4H 2 O and thiourea dissolved in deionized water, (NH 4 ) 6 Mo 7 O 24 ·4H 2 The mass of O is 1.25g, the mass of thiourea is 1.08g, the volume of deionized water is 36mL, the hydrothermal reaction is carried out after stirring for 50min, the temperature of the hydrothermal reaction is 225℃, the time of the hydrothermal reaction is 19h, and then cooling To room temperature, the solid material cooled to room temperature is centrifuged, the rotation speed of the centrifugal separation is 8000 rpm, and the time of the centrifugal separation is 7 minutes. The product obtained by centrifugation is ultrasonically washed with a polar solvent for 2 minutes, and then the centrifugal separation is continued. The speed of centrifugation is 8000 rpm, the time of centrifugation is 5 minutes, and the product obtained by centrifugation is ultrasonically washed with a polar solvent for 2 minutes, and
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