Nano aluminum-platinum catalyst and applications thereof
A platinum catalyst and nano-aluminum technology, which is applied in the field of preparation of pyridine derivatives, can solve the problems of unsuitability for large-scale industrial production, high cost of raw materials, lack of catalysts, etc., and achieve the effect of reasonable design, less pollution to the environment, and improved surface activity
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Embodiment 1
[0025] First prepare a catalyst, a nano-aluminum-platinum catalyst, consisting of platinum powder and aluminum powder, the mass ratio of the platinum powder to aluminum powder is 1:8.5, the size of the platinum powder is 5nm, and the size of the aluminum powder is 4.0nm.
[0026] A kind of preparation method of nano aluminum platinum catalyst, its step:
[0027] (1) Grinding metal platinum into platinum powder with a size of 5nm, and grinding metal aluminum into aluminum powder with a size of 4.0nm;
[0028] (2) the platinum powder and the aluminum powder in the step (1) are mixed evenly according to the ratio of 1:8.5 according to the mass ratio, to obtain the mixed powder;
[0029] (3) compressing the mixed powder in step (2) with a tablet press, with a pressure of 137N, to obtain a mixed briquette;
[0030] (4) The mixed briquette in step (3) was placed in an aqueous sodium hydroxide solution with a mass concentration of 29% for 2 minutes to obtain a finished catalyst. Th...
Embodiment 2
[0032] Same as Example 1, the difference is that the size of the platinum powder is 3.5nm, and the size of the aluminum powder is 4.5nm. The prepared finished catalyst is loose and porous, with a density of 0.28g / cm 3 .
Embodiment 3
[0034] Same as Example 1, the difference is that the size of the platinum powder is 7nm, and the size of the aluminum powder is 3.0nm. The prepared finished catalyst is loose and porous, with a density of 0.39g / cm 3 .
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