Catalyst and large-scale preparation method and application thereof
A catalyst and substrate technology, applied in the field of electrocatalysis, can solve the problems of not meeting the industrial standards of electrocatalysis OER technology
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0089] The structural schematic diagram of the catalyst prepared by the preparation method provided by the present invention can refer to figure 1 In Figures a, b and c, the foam nickel-iron is used as the substrate, the carrier 200 (including nickel-iron oxyhydroxide) is located on the surface of the substrate 100, the carrier 200 includes a plurality of substructures 210, and the substructures 210 are flower-shaped, and The substructures 210 are evenly distributed on the surface of the substrate 100, and the catalyst particles 300 are supported on the nanosheets 211 of the substructure 210; a plurality of nickel-iron oxyhydroxide nanosheets form a three-dimensional flower-like structure, which can increase the loading area of the ruthenium nanoparticles, and , showing super-hydrophilic and super-aerophobic surface properties, which is beneficial to the diffusion of electrolyte and gas transport, thereby improving the catalytic performance of the catalyst for the anode oxyge...
Embodiment 1
[0096] The foamed nickel iron with a thickness of 1.0 mm was cut into a rectangle of 10 mm × 10 mm, soaked in 30 mL of hydrochloric acid with a molar concentration of 3 mol / L, and etched at 25 °C for 15 min.
[0097] The etched nickel-iron foam was ultrasonically washed with 80 mL of ultrapure water at a power of 1000W for 4 minutes until the washing solution became neutral. After that, ultrapure water, acetone and anhydrous ethanol were used for ultrasonic cleaning for 15 minutes, respectively, to obtain etching. Foamed nickel iron.
[0098] Ruthenium trichloride and sodium chloride were dissolved in water to obtain a mixed solution (precursor solution) of ruthenium trichloride (15mmol / L) and sodium chloride (5mmol / L), and the pH of the mixed solution was 2.39; The etched nickel-iron foam was placed in 10 mL of mixed solution, stirred at 25 ° C for 15 min, and after the reaction was completed, solid-liquid separation was performed, and the solid obtained by solid-liquid separ...
Embodiment 2
[0100] The difference from Example 1 is that the sodium chloride solution is replaced by natural sea water, and the natural sea water is taken from the Yellow Sea (120°E, 35°N, namely 120° east longitude, 35° north latitude), and the water intake time is February 2021. , and the rest are the same as in Example 1.
PUM
| Property | Measurement | Unit |
|---|---|---|
| length | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More