Phosphate-containing cross-linked polymer palladium-loaded nano-catalyst and preparation and application thereof
A technology of cross-linked polymers and palladium nanometers, which is applied in the direction of organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, nanotechnology, etc., can solve the problems of few preparation and catalytic applications, and achieve large-scale The effect of market application value and broad development space
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Embodiment 1
[0030] Embodiment 1 prepares phosphoric acid-containing cross-linked polymer-loaded nano-palladium catalyst
[0031] In a three-necked flask, add divinylbenzene (DVB) (2.0g, 15mmol), acrylic acid (AA) (0.360g, 5mmol), diphenyl-p-styrylphosphine (DPPS) (1.4416g, 5mmol), even Azodiisobutyronitrile (0.07g) and ethyl acetate (30ml) were protected under nitrogen. React without stirring at 100°C for 24 hours. After the reaction, dry the solvent to obtain 2.5 g of white powder which is a copolymer of divinylbenzene, acrylic acid and diphenyl-p-styrylphosphine (PDVB-AA-DPPS).
[0032] 200mg of the above white powder was immersed in ammonium tetrachloropalladate ((NH 4 ) 2 PdCl 4 ) (10mg) in methanol solution (10mL), stirred vigorously for 16h, centrifuged, washed with methanol, put into a methanol solution (10mL) of sodium borohydride (20mg), stirred vigorously for 6h, centrifuged, washed with methanol to obtain phosphoric acid-containing cross-linked Polymer loaded nano palladium...
Embodiment 2~7
[0034] Adopt the method for embodiment 1 to prepare the nano-palladium catalyst containing phosphoric acid cross-linked polymer, difference is to change the mol ratio of DVB and AA and DPPS and (NH 4 ) 2 PdCl 4 The dosage, see Table 1:
Embodiment 8~11
[0036] Adopt the method for embodiment 1 to prepare phosphoric acid-containing cross-linked polymer loaded nano-palladium catalyst, the difference is to change the type of phosphine-containing monomer in the synthetic cross-linked polymer, see Table 2:
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