How Does Ultrasonic Spray Coating Improve Electrode And Catalyst Film Preparation?

How Does Ultrasonic Spray Coating Improve Electrode and Catalyst Film Preparation?

 

Application of ultrasonic atomization spraying in electrode preparation

1. Fuel Cell Electrode Coating Preparation

Fuel cell electrodes typically require a catalyst layer to facilitate electrochemical reactions. Ultrasonic spraying can deposit catalyst inks onto the electrode substrate, gas diffusion layer, or relevant components of the membrane electrode assembly.

For example, in proton exchange membrane fuel cells (PEMFCs), platinum-based catalysts are common electrode catalytic materials. The deposition process of the catalyst layer can be tuned by controlling the spraying flow rate, the number of sprays, and the substrate temperature.

Main applications:

• Platinum (Pt) catalyst electrode coating

• Catalyst deposition on gas diffusion layer (GDL) surfaces

• Coating preparation for membrane electrode assemblies (MEAs)

• Experimental and process development of fuel cell electrode materials

2. Electrode Preparation for Hydrogen Production via Water Electrolysis

In hydrogen production equipment via water electrolysis, the material distribution, coating structure, and catalyst loading of the catalyst electrode all affect electrode performance.

Ultrasonic atomization spraying can be used to deposit catalyst inks onto substrates such as metal mesh, metal foam, and porous transport layers.

Common application materials include：

• Iridium oxide catalyst coating

• Platinum-based catalyst coating

• Nickel-based catalysts and other transition metal catalysts

• Functional thin films on the surface of the electrolyzer electrode

Conductive Polymer Electrode Thin Films

Ultrasonic spraying is not only applicable to metal catalysts but can also be used to prepare thin films of functional materials such as conductive polymers.

For example, PEDOT:PSS is a common conductive polymer material. Ultrasonic spraying can be used to deposit PEDOT:PSS nanostructured layers on carbon paper electrodes and to study their electrochemical properties.

This application is suitable for:

• Electrodes in bioelectrochemical systems

• Conductive polymer films

• Flexible electronic materials

• Surface modification of laboratory electrodes

RPS-SONIC Ultrasonic Atomization Spray Coating Equipment

The RPS-SONIC ultrasonic atomization spray coating equipment is designed for experimental research and process development of electrode materials, catalyst films, and other functional coatings.

Product Features:

1.Ultrasonic Atomization: Achieves fine liquid atomization using ultrasonic vibration.

2.Controlled Coating: Supports controllable coating deposition rate through process parameters.

3.Wide Application: Suitable for applications involving electrodes, catalysts, conductive materials, and functional films.

4.Flexible Integration: Allows for customization of nozzles, liquid supply systems, and automated spraying platforms to meet specific needs.

For different catalyst formulations and electrode substrates, equipment selection should be tested and confirmed based on material viscosity, particle size, solids content, required coating thickness, and spraying area.