Molybdenum carbide/carbon nanocatalyst for hydrogen production synthesized by ink
A molybdenum carbide and catalyst technology, applied in physical/chemical process catalysts, catalyst activation/preparation, chemical/physical processes, etc., can solve the problems of poor electrocatalytic conductivity, difficulty, and limited electrocatalytic hydrogen production capacity, etc. Effects of specific surface area, enhanced electrical conductivity, high electrocatalytic hydrogen production activity and stability
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Embodiment 1
[0037] At 80 °C, 1.87 g of didecyldimethylammonium bromide and 1.5 g of ink were dispersed in 50 mL of deionized water. Then, in the state of magnetic stirring, 30 g of ammonium molybdate solution with a mass concentration of 2.4% was added dropwise thereto, and reacted at 80° C. for 24 h. After the reaction, the hybrid precursor MoO was obtained by centrifugal drying. x / DDA / CI.
[0038] Put the above precursor in a tube furnace under the protection of argon atmosphere, raise the temperature to 750°C, keep the temperature constant for 5 hours, and control the heating rate at 5°C / min, you can get 3D hierarchical porous structure molybdenum carbide / carbon nanometer electrocatalytic hydrogen production catalyst. Such as figure 1 As shown: the catalyst as a whole presents a three-dimensional hierarchical porous structure, and its structure is composed of molybdenum carbide nanoparticles and carbon nanoparticles intersecting, and the particle size of the active center molybdenu...
Embodiment 2
[0044] At 80 °C, 1.87 g of didecyldimethylammonium bromide and 0 g of ink were dispersed in 50 mL of deionized water. Then, in the state of magnetic stirring, 30 g of ammonium molybdate solution with a mass concentration of 2.4% was added dropwise thereto, and reacted at 80° C. for 24 h. After the reaction, the hybrid precursor MoO was obtained by centrifugal drying. x / DDA / CI.
[0045] Put the above precursor in a tube furnace under the protection of argon atmosphere, raise the temperature to 750°C, keep the temperature constant for 5 hours, and control the heating rate at 5°C / min, you can get 3D hierarchical porous structure molybdenum carbide / carbon nanometer electrocatalytic hydrogen production catalyst.
[0046] The electrochemical test of the prepared 3D hierarchical porous structure molybdenum carbide / carbon nanometer electrocatalytic hydrogen production catalyst is the same as the steps (a) and (b) of the implementation case 1.
[0047] The catalyst exhibits high hy...
Embodiment 3
[0049] At 80 °C, 1.87 g of didecyldimethylammonium bromide and 0.5 g of ink were dispersed in 50 ml of deionized water. Then, in the state of magnetic stirring, 30 g of ammonium molybdate solution with a mass concentration of 2.4% was added dropwise thereto, and reacted at 80° C. for 24 h. After the reaction, the hybrid precursor MoO was obtained by centrifugal drying. x / DDA / CI.
[0050] Put the above precursor in a tube furnace under the protection of argon atmosphere, raise the temperature to 750°C, keep the temperature constant for 5 hours, and control the heating rate at 5°C / min, you can get 3D hierarchical porous structure molybdenum carbide / carbon nanometer electrocatalytic hydrogen production catalyst.
[0051] The electrochemical test of the prepared 3D hierarchical porous structure molybdenum carbide / carbon nanometer electrocatalytic hydrogen production catalyst is the same as the steps (a) and (b) of the implementation case 1.
[0052] The catalyst exhibits high ...
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