Photosynthesis preparation method of nano palladium catalyst
A catalyst and nano-palladium technology, which is applied in the direction of catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of high cost, physical injury of operators, etc., and achieve low equipment requirements and short production cycle , the effect of good application prospects
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Embodiment 1
[0030] 1. Add 20mL of water and 4mL of ethanol to the reaction vessel, and stir to obtain a water-ethanol mixed solution system;
[0031] 2. Set 7.04×10 -4 mol / L of PdCl 2 Powder, 1.15×10 -2 mol / L SDS and 1.15×10 -3 Add mol / L PVP to the water-ethanol mixed solution system, put the prepared solution on a constant temperature magnetic stirrer at 25°C for 2 hours, the color of the solution is light yellow;
[0032] 3. Put the uniformly stirred reaction solution in a self-designed light reaction box, and place it under a 60W ordinary commercially available incandescent light for 5 hours in parallel;
[0033] 4. Centrifuge the obtained black precipitate, wash it with ethanol and acetone, and dry it in a vacuum oven at 40°C for 24 hours to obtain a nano-palladium catalyst.
[0034] 5. Transmission electron micrograph (TEM) was obtained by JEOL-2010 transmission electron microscope of Japan Electronics Co., Ltd.; cyclic voltammetry curve (CV) was obtained by electrochemical worksta...
Embodiment 2
[0036] 1. Add 20mL of water and 4mL of ethanol to the reaction vessel, and stir to obtain a water-ethanol mixed solution system;
[0037] 2. Set 7.04×10 -4 mol / L of PdCl 2 Powder, 1.25×10 -2 mol / L SDS and 1.25×10 -4 Add mol / L PVP to the water-ethanol mixed solution system, put the prepared solution on a constant temperature magnetic stirrer at 25°C for 2 hours, the color of the solution is light yellow;
[0038] 3. Put the uniformly stirred reaction solution in a self-designed light reaction box, and place it under a 60W ordinary commercially available incandescent light for 5 hours in parallel;
[0039] 4. Centrifuge the obtained black precipitate, wash it with ethanol and acetone, and dry it in a vacuum oven at 40°C for 24 hours to obtain a nano-palladium catalyst.
[0040] 5. The microscopic morphology of the nano-palladium catalyst is as follows: figure 2 As shown, in addition to a small amount of random nanoparticles, the morphology is triangular, truncated triangle...
Embodiment 3
[0042] 1. Add 20mL of water and 4mL of ethanol to the reaction vessel, and stir to obtain a water-ethanol mixed solution system;
[0043] 2. Set 7.04×10 -4 mol / L of PdCl 2 Powder, 1.25×10 -2 mol / L SDS and 2.5×10 -4 Add mol / L PVP to the water-ethanol mixed solution system, put the prepared solution on a constant temperature magnetic stirrer at 25°C for 2 hours, the color of the solution is light yellow;
[0044] 3. Put the evenly stirred reaction solution in a self-designed light reaction box, and place it under a 60W incandescent light for 5 hours in parallel;
[0045] 4. Centrifuge the obtained black precipitate, wash it with ethanol and acetone, and dry it in a vacuum oven at 40°C for 24 hours to obtain a nano-palladium catalyst.
[0046] 5. The microscopic morphology of the nano-palladium catalyst is as follows: image 3 As shown, most of them have regular triangular, square and hexagonal shapes, and the particle size distribution is uniform, with an average particle s...
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