Ferronickel hydroxide electrocatalyst, preparation method and application thereof, self-powered system and application thereof
An oxide electrocatalyst technology, applied in electrodes, circuits, electrical components, etc., can solve the problems of low oxygen evolution and hydrogen evolution activity, and achieve effective utilization, excellent oxygen evolution reaction catalytic activity, and excellent hydrogen evolution reaction catalytic activity. Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0042] The first aspect of the present invention provides a kind of preparation method of nickel-iron hydroxide electrocatalyst, wherein, described method comprises the following steps:
[0043] Step 1, dissolving iron salt, fluorine-containing compound and urea in water, and stirring to obtain a homogeneous solution;
[0044]Step 2. Immerse foamed nickel in the homogeneous solution described in step 1, perform hydrothermal reaction, cool and wash with detergent to obtain the nickel-iron hydroxide electrocatalyst.
[0045] In the present invention, the product is analyzed through X-ray diffraction (XRD), showing that the nickel-iron hydroxide electrocatalyst provided by the present invention is in a layered structure, specifically, nickel, iron cations and hydroxide radicals form the main layer, and the interlayer contains Water molecules, carbonate ions and fluoride ions.
[0046] In the present invention, when the nickel-iron hydroxide electrocatalyst is prepared by the met...
Embodiment 1
[0092] Step 1, with 1.5mmolFe (NO 3 ) 3 9H 2 O (0.021mol / L), 10mmolNH 4F (0.143mol / L) and 12.5mmol urea (0.179mol / L) were dissolved in 70mL of deionized water, stirred for 30 minutes to form a homogeneous solution;
[0093] Step 2. Make a piece with an area of 10cm 2 Nickel foam (2mm×5mm) was immersed in the homogeneous solution, hydrothermally reacted at 120° C. for 6 hours, and cooled naturally to room temperature. The nickel foam was washed several times with deionized water and ethanol, respectively. The catalyst NiFe-OH / NF-1 was prepared, wherein, in the catalyst, the iron content was 14.13wt%, the nickel content was 36.12wt%, the oxygen content was 48.62wt%, and the fluorine content was 1.13wt%.
Embodiment 2
[0095] The same method as in Example 1 was used to prepare the nickel-iron hydroxide electrocatalyst, except that the amount of iron salt was 2mol / L, and the NH 4 The dosage of F is 5mol / L, and the dosage of urea is 4mol / L. The catalyst NiFe-OH / NF-2 was prepared, wherein, in the catalyst, the iron content was 16.21wt%, the nickel content was 34.32wt%, the oxygen content was 47.26wt%, and the fluorine content was 2.21wt%.
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More