Preparation method of platinum-diamond nanocomposite electrode
A nano-composite and diamond technology, which is applied in the fields of electrochemical variables of materials, material analysis by electromagnetic means, measuring devices, etc., can solve the problems of ineffective dispersion, poor water dispersibility of nano-diamond powder, and difficulty in preparing nano-diamond electrodes, etc. achieve good catalytic performance
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Embodiment 1
[0041] A preparation method of a platinum-diamond nanocomposite electrode, the steps are as follows:
[0042] (1) Preparation of diamond nanoparticles:
[0043] Put 0.5g of diamond powder in an agate mortar, grind for 4h to obtain diamond nanoparticles, and set aside;
[0044] (2) Preparation of cationic surfactant functionalized diamond nanocomposites:
[0045] Take by weighing 55 mg of diamond nanoparticles prepared in step (1), disperse with 55 mL of secondary deionized water, then magnetically stir for 1.25 h, then add 30 μL of cationic surfactant, ultrasonically disperse, continue magnetic stirring for 4 h, and then centrifuge to separate The diamond nanoparticles modified by functionalization were removed, and then were centrifuged and washed with 50mL of secondary deionized water and 50mL of absolute ethanol respectively. This operation was repeated 3 times to remove surfactants not involved in functional modification, and finally vacuum-dried at 62.5°C 13h, obtain th...
Embodiment 2
[0059] A preparation method of a platinum-diamond nanocomposite electrode, the steps are as follows:
[0060] (1) Preparation of diamond nanoparticles:
[0061] Put 0.05g of diamond powder in an agate mortar, grind for 0.5h to obtain diamond nanoparticles, and set aside;
[0062] (2) Preparation of cationic surfactant functionalized diamond nanocomposites:
[0063] Take by weighing 40 mg of diamond nanoparticles prepared in step (1), disperse with 40 mL of secondary deionized water, then magnetically stir for 0.5 h, then add 10 μL of cationic surfactant, ultrasonically disperse, continue magnetic stirring for 3 h, and then centrifuge to separate The diamond nanoparticles modified by functionalization were removed, and then were centrifuged and washed with 40mL secondary deionized water and 40mL absolute ethanol respectively. This operation was repeated twice to remove surfactants not involved in functional modification, and finally vacuum-dried at 60°C 12h, obtain the diamon...
Embodiment 3
[0077] A preparation method of a platinum-diamond nanocomposite electrode, the steps are as follows:
[0078] (1) Preparation of diamond nanoparticles:
[0079] Put 1 g of diamond powder in an agate mortar, grind for 8 hours to obtain diamond nanoparticles, and set aside;
[0080] (2) Preparation of cationic surfactant functionalized diamond nanocomposites:
[0081] Weigh 70 mg of diamond nanoparticles prepared in step (1), disperse with 70 mL of secondary deionized water, then magnetically stir for 2 h, then add 50 μL of cationic surfactant, ultrasonically disperse, continue magnetic stirring for 5 h, and then centrifuge to separate The functionalized modified diamond nanoparticles were removed, and then centrifuged and washed with 60 mL of secondary deionized water and 60 mL of absolute ethanol respectively. This operation was repeated 3 times to remove surfactants that did not participate in the functionalized modification, and finally vacuum-dried at 65 ° C for 14 h , to...
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