Preparation method of magnetic nano palladium catalyst
A technology of magnetic nano and palladium catalysts, which is applied in the preparation of organic compounds, preparation of amino compounds, chemical instruments and methods, etc., to achieve the effects of short time consumption, enhanced binding force, and easy industrial production
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Embodiment 1
[0015] Embodiment 1: 100 mg Fe 3 o 4 Nanoparticles (purchased from Beijing Deke Daojin Technology Co., Ltd., with an average particle size of 20 nm) were dispersed in 10 mL of 0.1 mol / L tetramethylammonium hydroxide aqueous solution and stirred at room temperature for 1 hour; then 1 mL of saturated NaCl aqueous solution was added to it, After stirring for 5 minutes, the Fe 3 o 4 Aspirate by nanometer, wash three times with deionized water and store in 10 mL DMF.
Embodiment 2
[0016] Embodiment 2: 100 mg Fe 2 o 3 Nanoparticles (purchased from Sigma-Aldrich, with an average particle size of 30 nm) were dispersed in 10 mL of 0.1 mol / L tetramethylammonium hydroxide aqueous solution and stirred at room temperature for 1 hour; then 1 mL of saturated NaCl aqueous solution was added thereto and stirred for 5 minutes Fe 3 o 4 Aspirated by nanometer, washed three times with deionized water and stored in 10 mL DMF.
Embodiment 3
[0017] Embodiment 3: get 5 mL embodiment 1 gained Fe 3 o 4 DMF dispersion of nanoparticles, to which 5 mLDMF, 10 mL ethylene glycol and 10 mg PdCl were added sequentially 2 , and sonicated for 1 hour; the nanoparticles were sucked out with a magnet, and washed 3 times with deionized water to obtain the magnetic nano-palladium catalyst nano-Fe 3 o 4 -Pd, keep it in 5 mL methanol. The palladium content in this magnetic nano-palladium catalyst was determined to be 5.2% by ICP-OES.
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