In-situ growth of wo on the surface of a carbon cloth 3 /wo 3 0.33h 2 oPreparation method of self-supporting electrode material
A self-supporting electrode, in-situ growth technology, applied in the direction of catalyst activation/preparation, nanotechnology for materials and surface science, electrodes, etc., can solve the mismatch between pH range and auxiliary equipment, reduce the overall performance of the electrolytic cell, hinder Large-scale production and other issues, to achieve excellent electrocatalytic hydrogen and oxygen production performance, short preparation cycle, and low cost
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Embodiment 1
[0028] 1) First, completely immerse the carbon cloth with a length of 2 cm and a width of 4 cm in acetone for 30 minutes, and then place the treated carbon in an HCl solution with a concentration of 3 mol / L for 30 minutes, and then use pure water for 15 minutes. , and finally put it in absolute ethanol for ultrasonic treatment for 30 minutes, and then continue to rinse with absolute ethanol for 3 times;
[0029] 2) Take analytically pure tungsten source (NH 4 ) 10 W 12 o 41 ·5H 2 O is dissolved in high-purity water to make solution A of 0.08mol / L;
[0030] 3) Add analytically pure ethylenediaminetetraacetic acid to solution A at a ratio of 0.05:1 to tungsten source, magnetically stir for 30 minutes, and sonicate for 5 minutes to obtain solution B;
[0031] 4) Pour solution B into a polytetrafluoroethylene-lined autoclave at a volume filling ratio of 40%, and put the treated carbon cloth into the polytetrafluoroethylene reactor containing solution B;
[0032] 5) Put the s...
Embodiment 2
[0037] 1) First immerse the carbon cloth with a length of 1 cm and a width of 7 cm in acetone for 30 minutes, then place the treated carbon in an HCl solution with a concentration of 5 mol / L for 20 minutes, and then use pure water for 30 minutes. , and finally put it in absolute ethanol for ultrasonic treatment for 30 minutes, and then continue to rinse with absolute ethanol for 5 times;
[0038] 2) Take analytically pure tungsten source (NH 4 ) 10 W 12 o 41 ·5H 2 O is dissolved in high-purity water to make solution A of 0.01mol / L;
[0039] 3) Add analytically pure ethylenediaminetetraacetic acid to solution A at a ratio of 0.01:1 to the amount of ethylenediaminetetraacetic acid and tungsten source, magnetically stir for 50 minutes, and ultrasonically treat for 5 minutes to obtain solution B;
[0040] 4) Pour solution B into a polytetrafluoroethylene-lined autoclave at a volume filling ratio of 50%, and put the treated carbon cloth into the polytetrafluoroethylene reactor...
Embodiment 3
[0044] 1) First, completely immerse the carbon cloth with a length of 2 cm and a width of 5 cm in acetone for 30 minutes, and then place the treated carbon in a HCl solution with a concentration of 4 mol / L for 15 minutes of ultrasonic treatment, and then use pure water for 15 minutes of ultrasonic treatment , and finally put it in absolute ethanol for ultrasonic treatment for 15 minutes, and then continue to rinse with absolute ethanol for 3 times;
[0045] 2) Take analytically pure tungsten source (NH 4 ) 10 W 12 o 41 ·5H 2 O was dissolved in high-purity water to make 1mol / L solution A;
[0046] 3) Add analytically pure ethylenediaminetetraacetic acid to solution A according to the ratio of ethylenediaminetetraacetic acid and tungsten source to 1.5:1, magnetically stir for 30 minutes, and ultrasonically treat for 6 minutes to obtain solution B;
[0047] 4) Pour solution B into a polytetrafluoroethylene-lined autoclave at a volume filling ratio of 30%, and put the treated...
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