Co3O4/CuMoO4 compound and preparation method and application thereof
A compound and material technology, applied in the direction of metal/metal oxide/metal hydroxide catalyst, hydrogen/synthesis gas production, chemical instruments and methods, etc., can solve the problems of cumbersome operation and high preparation cost, and achieve simple process, The effect of novel method and cheap raw materials
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[0034] The invention provides a method for preparing a Co3O4 / CuMoO4 composite, which specifically includes the following methods:
[0035] 1. Take 4.5mmol Co(NO 3 ) 2 ·6H 2 O, 2.25mmol C 6 h 12 N 4 , 1.5mmol Na3 C 6 h 5 o 7 2H 2 O was dissolved in 35mL deionized water and kept stirring until dissolved;
[0036] 2. Transfer the above solution to a 100mL reactor, and react at 95-110°C for 8-24 hours;
[0037] 3. Suction filtration and water washing, drying in a vacuum oven at 40-60°C for 3-6 hours;
[0038] 4. Weigh 90 mg of the above precipitate and disperse it in 40 mL of H 2 O middle;
[0039] 5. Add CuCl 2 (0.5 ~ 2mmol) stirred and dissolved, and then correspondingly add the same amount of H 2 MoO 4 ;
[0040] 6. Dissolve urea (5-20mmol) in 40mL water;
[0041] 7. Add the urea solution to the above solution drop by drop through the sealed funnel, and stir for 30 minutes;
[0042] 8. Transfer to the reaction kettle, react at 150-180°C for 6-10 hours, cool to...
Embodiment 1
[0046] 1. Take 4.5mmol Co(NO 3 ) 2 ·6H 2 O, 2.25mmol C 6 h 12 N 4 , 1.5mmol Na 3 C 6 h 5 o 7 2H 2 O was dissolved in 35mL deionized water, and kept stirring until dissolved; the above solution was transferred to a 100mL reactor, and reacted at 100°C for 24h; filtered and washed with water, and dried in a vacuum oven at 40°C for 3h;
[0047] 2. Weigh 90 mg of the above precipitate and disperse it in 40 mL of H 2 O; add CuCl 2 (0.5mmol) stirring and dissolving, then correspondingly add the same amount of H 2 MoO 4 ;Dissolve urea (5mmol) in 40mL of water, add the urea solution dropwise to the above solution through a sealed funnel, and stir for 30min; transfer to the reaction kettle, react at 160°C for 8h, cool to room temperature after the reaction, collect the precipitate, and wash Vacuum drying after several times; the collected samples were calcined in a muffle furnace at 500°C for 2h with a heating rate of 2°C / min to obtain the final catalyst Co 3 o 4 / CuMoO ...
Embodiment 2
[0060] 1. Take 4.5mmol Co(NO 3 ) 2 ·6H 2 O, 2.25mmol C 6 h 12 N 4 , 1.5mmol Na 3 C 6 h 5 o 7 2H 2 Dissolve O in 35mL deionized water, and keep stirring until dissolved; transfer the above solution to a 100mL reactor, and react at 100°C for 8h; filter and wash with water, and dry in a vacuum oven at 40°C for 3h;
[0061] 2. Weigh 90 mg of the above precipitate and disperse it in 40 mL of H 2 O; add CuCl 2 (0.5mmol) stirring and dissolving, then correspondingly add the same amount of H 2 MoO 4 ;Dissolve urea (5mmol) in 40mL of water, add the urea solution dropwise to the above solution through a sealed funnel, and stir for 30min; transfer to the reaction kettle, react at 160°C for 8h, cool to room temperature after the reaction, collect the precipitate, and wash Vacuum drying after several times; the collected samples were calcined in a muffle furnace at 500°C for 2h, and the heating rate was 2°C / min to obtain the final catalyst Co 3 o 4 / CuMoO 4 ;
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