A kind of Al-Mg-B powder/graphyne mixed carrier supported metal catalyst and its preparation and application
A mixed carrier and metal-loaded technology, which is applied in the direction of catalyst activation/preparation, organic compound/hydride/coordination complex catalyst, physical/chemical process catalyst, etc., can solve the problem of low gas metal dispersion and low mass transfer. problems, to achieve good stability, high catalytic activity, good dispersion effect
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Embodiment 1
[0081] Catalyst preparation:
[0082] 1) Select 9.1 g of graphdiyne film carrier and 0.91 g of aluminum-magnesium-boron powder and mix them mechanically for 3 hours, then bake them in a nitrogen atmosphere at 200°C for 2 hours, and obtain a solid sample for later use.
[0083] 2) Dissolve 0.08g of triphenylmethylphosphine bistrifluoromethanesulfonimide salt and 0.02g of triphenylethylphosphine bromide in 5mL of toluene, stir well, then add the solid sample obtained in step 1) , impregnated for 2 hours, and dried at 180°C for later use. Wherein the mass loading of ionic liquid is 1%.
[0084] 3) Dissolve 0.009g of chloroauric acid in 0.05mL of toluene, stir evenly, add the sample obtained in step 2), dip in an external 0.2kV static electric field for 2h, and dry at 180°C for use. Wherein the mass loading amount of gold element is 0.05%.
[0085] 4) 10.109 g of the solid sample obtained above was re-dispersed in a mixed solution of 50 mL of toluene and 1.0 g of dimethyldichlo...
Embodiment 2
[0089] Catalyst preparation:
[0090] 1) 2 g of graphyne powder and 8 g of aluminum-magnesium-boron powder were selected and mixed mechanically for 2 h, and then calcined for 3 h in an argon atmosphere at 300° C., and the obtained solid sample was used for later use.
[0091] 2) Dissolve 0.25g triphenylmethylphosphine bistrifluoromethanesulfonimide salt and 0.25g N-pentyl-ethylpiperidinium chloride salt ionic liquid in 5mL nitrogen nitrogen dimethylformamide, stir well , adding the solid sample obtained in step 1), soaking for 3 hours, and drying at 180°C for later use. Wherein the mass loading of ionic liquid is 5%.
[0092] 3) Dissolve 0.103g of ruthenium chloride in 0.5mL of nitrogen-nitrogen dimethylformamide, stir evenly, add the sample obtained in step 2), and immerse in an external 3kV static electric field for 2h. After 5 hours, dry it at 180°C for later use. Wherein the mass loading amount of ruthenium element is 0.5%.
[0093] 4) 12.5 g of the solid sample obtain...
Embodiment 3
[0097] Catalyst preparation:
[0098] 1) 8 g of graphyne powder and 2 g of aluminum-magnesium-boron powder were selected and mixed mechanically for 4 hours, and then roasted for 8 hours in a nitrogen atmosphere at 400° C., and the obtained solid sample was used for later use.
[0099] 2) Take 0.4g of 1-propyl-2,3-dimethylimidazole bis-trifluoromethanesulfonimide salt and 0.4g of 1-hexyl-2,3-dimethylimidazole bis-trifluoromethanesulfonimide salt ion The liquid was dissolved in 8 mL of toluene, and after stirring evenly, the solid sample obtained in step 1) was added, soaked for 4 hours, and dried at 180°C for later use. Wherein the mass loading of ionic liquid is 8%.
[0100] 3) Dissolve 4.53g of copper phthalocyanine in 9.1mL of toluene, stir evenly, add the sample obtained in step 2), dip in an external 3kV static electric field for 3h, and dry at 180°C for later use. Wherein the mass loading of copper element is 5%.
[0101] 4) 14.81 g of the solid sample obtained above w...
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