Catalytic anode in a low-temperature fuel cell responsive to visible light and preparation method thereof
A fuel cell and catalytic anode technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of pure platinum poisoning, poor catalytic performance and stability of pure platinum catalysts, and limit the application of platinum catalysts, and achieve high corrosion resistance. The effect of obvious electrocatalytic performance and excellent anti-poisoning ability
Active Publication Date: 2022-02-11
NINGBO UNIV
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, pure platinum is easily poisoned by intermediate products such as carbon monoxide, and the catalytic performance and stability of pure platinum catalysts are relatively poor. These shortcomings limit the practical application of platinum catalysts.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0020] The catalytic anode in the visible light-responsive low-temperature fuel cell of Example 1 is composed of a conductive substrate and a catalyst layer loaded on the conductive substrate. The conductive substrate is made of glassy carbon electrodes, and the catalyst layer is made of tungsten disulfide nanosheet powder and loaded on two A gold nanocatalyst composition on the tungsten sulfide nanosheet powder; the preparation method of the catalytic anode comprises the following steps:
[0021] (1) Disperse 50 mg of bulk commercial tungsten disulfide powder in 50 mL of N-methylpyrrolidone to obtain a dispersion of tungsten disulfide powder, and place the dispersion in a cell pulverizer with a power of 150 watts. Set the use power to 40%, turn on the ultrasound for 5 seconds and turn it off for 5 seconds, continue to pulverize for 30 minutes, then let it stand for 20 minutes, centrifuge the supernatant at 4000 rpm for 20 minutes, obtain a solid after centrifugation, and wash ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The catalytic anode in the visible light-responsive low-temperature fuel cell disclosed by the present invention is composed of a conductive substrate and a catalyst layer loaded on the conductive substrate. The conductive substrate is made of copper, conductive glass or carbon material, and the catalyst layer is made of tungsten disulfide nanosheet powder and The invention consists of a gold nano-catalyst supported on tungsten disulfide nano sheet powder; the preparation method of the catalytic anode is simple in steps and strong in operability. The catalytic anode has good chemical stability, high corrosion resistance and excellent anti-poisoning ability in both acidic and alkaline electrolytes, and the gold nanocatalyst is highly dispersed on the surface of tungsten sulfide nanosheets without agglomeration, and the gold nanocatalyst The interaction between the catalyst and the tungsten disulfide nanosheet support can significantly enhance the catalytic performance and visible light response performance of the catalytic anode to alcohol small molecules, and more importantly, the catalytic anode to alcohol small molecules under visible light irradiation Compared with the catalytic activity of the catalytic anode under the condition of no light, the activity is obviously improved.
Description
technical field [0001] The invention relates to an electrode and a preparation method thereof, in particular to a catalytic anode in a low-temperature fuel cell responding to visible light and a preparation method thereof. Background technique [0002] As a battery technology that directly converts the chemical energy of fuel into electrical energy, fuel cells, especially methanol fuel cells, have many advantages such as high efficiency, low emissions, green and pollution-free, and have attracted great attention from the scientific and industrial circles. In fuel cells, the noble metal platinum or platinum alloys has been the most commonly used catalyst for anodic oxidation. However, pure platinum is easily poisoned by intermediate products such as carbon monoxide, and the catalytic performance and stability of pure platinum catalysts are relatively poor. These shortcomings limit the practical application of platinum catalysts. Contents of the invention [0003] The techn...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/90H01M4/88B82Y30/00
CPCY02E60/50
Inventor 翟春阳朱明山胡佳月
Owner NINGBO UNIV