Monodisperse metal atom/graphene composite catalyst and preparation method and application thereof
A graphene composite and metal atom technology, applied in the direction of catalyst activation/preparation, metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, etc. Reunion, monatomic higher problems
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[0115] Example 1:
[0116] (1) Using polytetrafluoroethylene (PTFE) as a binder, the sulfur-doped graphene powder was pressed into self-supporting cylindrical electrodes as anode and cathode, and the thickness of anode and cathode were both 5 mm. The mass ratio of PTFE to sulfur-doped graphene powder was 0.05 g / g. The anode and cathode both contain graphite with a mass fraction of more than 50%, the resistivity is 0.3 kohm·m (0.3 KΩ·m), there are pores, and the specific surface area is 4 square meters per gram (4 m 2 / g). The pressure of pressing the electrodes was 45 MPa and the temperature was 80 °C. Two types of electrodes, anode and cathode, form an array. The spacing between anode and cathode is 1 mm). A polyethylene membrane spacer is used between the anode and cathode. The average pore size of the polyethylene bag is 10 µm. (2) A DC voltage of +8 V to -8 V was applied between the anode and the cathode, electrolyzed for 60 h, the electrodes were exchanged every 3 h...
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[0117] Example 2:
[0118] (1) Using polytetrafluoroethylene (PTFE) as a binder, the phosphorus-sulfur-doped graphene powder was pressed into self-supporting cylindrical electrodes as anode and cathode, and the thickness of both anode and cathode was 5 mm. The mass ratio of PTFE to phosphorus-sulfur-doped graphene powder was 0.05 g / g. Both anode and cathode contain graphite with a mass fraction of more than 50%, with a resistivity of 0.3 kΩ·m (0.3 KΩ·m), pores, and a specific surface area of 4 square meters per gram (4 m 2 / g). The pressure of pressing the electrodes was 45 MPa and the temperature was 80 °C. Two types of electrodes, anode and cathode, form an array. The spacing between anode and cathode is 1 mm. A polypropylene membrane spacer is used between the anode and cathode. The average pore size of the polypropylene bags is 10 µm. (2) A DC voltage of +8 V to -8 V was applied between the anode and the cathode, electrolyzed for 60 h, the electrodes were exchanged ...
Example Embodiment
[0119] Example 3:
[0120] (1) Using polytetrafluoroethylene (PTFE) as a binder, the phosphorus-sulfur-boron doped graphene powder was pressed into self-supporting cylindrical electrodes as anode and cathode, and the thickness of anode and cathode were both 5 mm. The mass ratio of PTFE to phosphorus-sulfur-boron-doped graphene powder was 0.05 g / g. Both the anode and the cathode contain graphite with a mass fraction of more than 50%, with a resistivity of 0.3 kiloohm·m (0.3 KΩ·m), pores, and a specific surface area of 4 square meters per gram (4 m2 / g). The pressure of pressing the electrodes was 45 MPa and the temperature was 80 °C. Two types of electrodes, anode and cathode, form an array. The spacing between anode and cathode is 1 mm. A polyethylene membrane spacer is used between the anode and cathode. The average pore size of the polyethylene bag is 10 µm. (2) An alternating voltage of 10 V was applied between the anode and the cathode for 30 h of electrolysis, and t...
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