Preparation method of nickel nanoparticle implanted carbon cloth flexible electrode and application thereof
A nanoparticle and flexible electrode technology, applied in chemical instruments and methods, electrolytic processes, electrolytic components, etc., can solve the problems of reduced activity of electrocatalysts and easy fall-off of catalysts, and achieves easy cutting, simple and controllable preparation methods, and conductive good sex effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0031] Soak the carbon cloth into 2mol / L nickel acetate aqueous solution, let it stand for 6 hours to absorb nickel ions; 2 / Ar atmosphere, calcined at 900°C for 3 hours to obtain carbon cloth embedded with nickel nanoparticles.
[0032] Characterized by X-ray electron diffraction, the electrode contains two components of carbon and metallic nickel, such as figure 1 ; It was observed by scanning electron microscopy that nickel nanoparticles with a diameter of 100-200 nanometers were embedded in the carbon cloth, and there were a large number of holes on the surface of the carbon cloth, such as figure 2 .
Embodiment 2
[0034] The carbon cloth embedded with nickel nanoparticles obtained in Example 1 was directly used as the working electrode, the carbon cloth and the calomel electrode were respectively used as the counter electrode and the reference electrode, and 0.1 mol / L potassium hydroxide solution was used as the electrolyte.
[0035] The polarization curve was measured by linear voltammetry sweep as image 3 ,Depend on image 3 It can be seen that the obtained nickel nanoparticles embedded carbon cloth has a low overpotential for hydrogen production in water electrolysis, reaching 10 mA / cm 2 The voltage was 71.8 mV at the current density.
Embodiment 3
[0037] The nickel nanoparticle embedded carbon cloth obtained in Example 1 was used directly as the working electrode, and the electrochemical test process was the same as that in Example 2.
[0038] The catalytic current density was tested by the time-current method, and the initial catalytic current density was -147.2 mA cm -2 , the catalytic reaction did not decrease in catalytic current density for 113.8 hours, showing good cycle stability ( Figure 4 ).
[0039] The morphology of nickel nanoparticles embedded in carbon cloth after the catalytic electrolysis reaction is as follows: Figure 5 , no nanoparticle shedding was seen, showing strong structural stability.
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More