Synthesis method of supported MoS2 catalyst
A synthesis method and catalyst technology, which is applied in the field of MoS2 catalyst synthesis, can solve the problems of imperfect preparation methods of multi-stage molecular sieves, and achieve the effects of low synthesis cost, strong process economy, and safe and convenient operation
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[0023] Example 1
[0024] At 80℃, add 1.5g phosphoric acid, 0.88g aluminum isopropoxide, 0.4g ethanolamine and 0.05g hydrofluoric acid with a mass concentration of 40% to 33g 1-butyl-3-methyl imidazole bromide ionic liquid. , Stir until homogeneous to obtain the precursor mixture. Transfer the above mixture to a stainless steel reactor with a polytetrafluoroethylene lining, then place it in an oven at 150°C for crystallization, take it out after 6 hours of crystallization, cool the reactor, and then add 200ml of deionized water to the reaction mixture. After ultrasonic washing, the reactant was filtered to obtain a white solid, which was washed three times with deionized water and washed with 50 ml of ethanol. Place the final white solid in an oven at 110°C for drying, and finally obtain a white powder solid, which is determined by XRD, such as figure 1 As shown, the characteristic diffraction peaks with 2θ angles of 7.6, 20.5, 21.1, and 22.5 degrees can be observed, indicating...
Example Embodiment
[0025] Example 2
[0026] At 80℃, add 1.8g phosphoric acid, 1.0g aluminum isopropoxide, 0.5g ethanolamine and 0.05g hydrofluoric acid with a mass concentration of 40% to 20g 1-butyl-3-methyl imidazole bromide ionic liquid in sequence. , Stir until homogeneous to obtain the precursor mixture. Transfer the above mixture to a stainless steel reactor with a polytetrafluoroethylene lining, then place it in an oven at 160°C for crystallization, take it out after 4 hours of crystallization, cool the reactor, and then add 300ml of deionized water to the reaction mixture. After ultrasonic washing, the reactant was filtered to obtain a white solid, which was washed three times with deionized water and washed with 50 ml of ethanol. Place the final white solid in an oven at 110°C for drying, and finally obtain a white powder solid, which is confirmed by XRD test, such as figure 2 As shown, the characteristic diffraction peaks with 2θ angles of 7.6, 20.5, 21.1 and 22.5 degrees can be obser...
Example Embodiment
[0027] Example 3
[0028] 0.5ml of ammonium tetrathiomolybdate solution with a concentration of 0.01g / ml was immersed on 0.4g of the multi-porous AFI molecular sieve carrier synthesized in Example 2. Dry the impregnated catalyst at room temperature, and then transfer it to a 70°C vacuum drying oven for 4 hours. Put the dried catalyst in a tube furnace, in the N 2 Under purging conditions, the temperature is increased to 450°C and kept for 8 hours to prepare MoS supported by multi-pore AFI molecular sieve 2 catalyst.
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