Preparation method of a transition metal carbide catalyst and its application in the production of high value-added synthesis gas from biomass solid waste
A technology of transition metals and transition metal salts, which is applied in catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc. It can solve the problems of lack of synergy between microwave and catalyst, insufficient understanding of catalyst mechanism, etc., to promote Effects of resource utilization, productivity improvement, and quality improvement
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Embodiment 1
[0043] The preparation of embodiment 1 molybdenum metal carbide catalyst
[0044] 1) Take 0.5mmol of ammonium heptamolybdate and 20mL of absolute ethanol and mix it with ultrasonic (120W) and stir for 15min to obtain solution A;
[0045] 2) Take 0.5mmol CTAB and 20mL absolute ethanol, mix and ultrasonically stir for 15min to obtain solution B;
[0046] 3) Fully mix solution A and solution B to obtain solution C, add a magnet to solution C, stir (10000r / min) at room temperature for 30min, and take out the magnet;
[0047] 4) Put the stirred solution C into a vacuum drying oven to dry for 12 hours, take a sample and grind it for 30 minutes, then take 0.4g and heat it up under argon, keep it warm at 700°C for 3 hours under a closed condition, and do carbon doping to prepare molybdenum metal carbide catalyst.
[0048] Such as figure 1 As shown, SEM (scanning electron microscope) can observe that this molybdenum metal carbide catalyst is the structure of solid sphere, nano-rod. ...
Embodiment 2
[0049] The preparation of embodiment 2 molybdenum metal carbide catalyst
[0050] 1) Take 0.4mmol of ammonium heptamolybdate and 20mL of absolute ethanol and mix it with ultrasonic (100W) and stir for 15min to obtain solution A;
[0051] 2) Take 0.4mmol CTAB and 20mL absolute ethanol, mix and ultrasonically stir for 15min to obtain solution B;
[0052] 3) Fully mix solution A and solution B to obtain solution C, add a magnet to solution C, stir (8000r / min) at room temperature for 20min, and take out the magnet;
[0053] 4) Put the stirred solution C into a vacuum drying oven to dry for 10 hours, take a sample and grind it for 35 minutes, then take 0.3g and heat it up under the condition of argon, keep it warm at 600°C for 2 hours and do carbon doping to prepare molybdenum metal carbide catalysts.
Embodiment 3
[0054] The preparation of embodiment 3 molybdenum metal carbide catalyst
[0055] 1) Take 0.6mmol ammonium heptamolybdate and 20mL absolute ethanol and mix it with ultrasonic (140W) and stir for 15min to obtain solution A;
[0056] 2) Take 0.6mmol CTAB and 20mL absolute ethanol, mix and ultrasonically stir for 15min to obtain solution B;
[0057] 3) Fully mix solution A and solution B to obtain solution C, add a magnet to solution C, stir (12000r / min) at room temperature for 40min, and take out the magnet;
[0058] 4) Put the stirred solution C into a vacuum drying oven to dry for 14 hours, take a sample and grind it for 40 minutes, then take 0.5g and heat it up under argon, keep it warm at 800°C for 4 hours under a closed condition, and do carbon doping to prepare molybdenum metal carbide catalyst.
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