Catalyst and method for producing nanometer carbon and hydrogen
A nano-carbon and catalyst technology, which is applied in the field of catalysts for the production of nano-carbon and hydrogen, can solve problems such as industrialization obstacles of operating costs, and achieve the effect of high selectivity and cost reduction.
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Embodiment 1
[0026] Step 1, preparation of catalyst
[0027] Ni(NO 3 ) 2 ·6H 2 O 15g Add methanol 500mL, stir to dissolve, then add Mg(NO3 ) 2 ·6H 2 20 g of O, 20 g of citric acid, and 200 mL of deionized water were heated and stirred at 50°C for 1 hour, and most of the methanol and water were removed by a rotary evaporator. The solid was sintered in air at 100°C to 600°C for a total of 8 hours, and then reduced with hydrogen for 5 hours to obtain a metal nickel magnesium oxide catalyst, wherein the weight content of Ni was 50%.
[0028] Step 2, cleavage reaction
[0029] Quartz fiber is placed in the middle of a quartz tube with an inner diameter of 1 inch, and 2 g of the catalyst prepared above is placed on the quartz fiber. The flow rate of hydrogen gas is 100 sccm, and the temperature of the electric furnace is 500 ° C. The catalyst is re-reduced for 3 hours, and then nitrogen enters the reaction tube at a flow rate of 100 sccm. Flushing was performed at the same temperature,...
Embodiment 2
[0034] Step 1, preparation of catalyst
[0035] Co(NO 3 ) 2 ·6H 2 O 15g, add propanol 500mL, stir to dissolve, then add Mg(NO 3 ) 2 ·6H 2 20 g of O, 13 g of oxalic acid, and 200 mL of deionized water were heated and stirred at 55°C for 1.8 hours, and most of the methanol and water were removed by a rotary evaporator. The solid was sintered at 100°C to 600°C in air for a total of 8 hours, and then reduced with hydrogen for 5 hours to obtain a metal cobalt magnesium oxide catalyst with a Co weight content of 50%.
[0036] Step 2, cleavage reaction
[0037] Quartz fiber is placed in the middle of a quartz tube with an inner diameter of 1 inch, and 2 g of the catalyst prepared above is placed on the quartz fiber. The flow rate of hydrogen gas is 100 sccm, and the temperature of the electric furnace is 500 ° C. The catalyst is re-reduced for 3 hours, and then nitrogen enters the reaction tube at a flow rate of 100 sccm. Flushing was performed at the same temperature, and...
Embodiment 3
[0042] Step 1, preparation of catalyst
[0043] Fe(NO 3 ) 3 9H 2 O 20g, add propanol 500mL, stir to dissolve, then add Mg(NO 3 ) 2 ·6H 2 20 g of O, 20 g of citric acid, and 200 mL of deionized water were heated and stirred at 47°C for 1 hour, and most of the methanol and water were removed by a rotary evaporator. The solid was sintered at 100°C to 600°C in air for a total of 8 hours, and then reduced with hydrogen for 5 hours to obtain a metal iron magnesium oxide catalyst with a Fe weight content of 50%.
[0044] Step 2, cleavage reaction
[0045] Quartz fiber is placed in the middle of a quartz tube with an inner diameter of 1 inch, and 2 g of the catalyst prepared above is placed on the quartz fiber. The flow rate of hydrogen gas is 100 sccm, and the temperature of the electric furnace is 500 ° C. The catalyst is re-reduced for 3 hours, and then nitrogen enters the reaction tube at a flow rate of 100 sccm. Flushing was performed at the same temperature, and the G...
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