The primary applications of Gas Diffusion Electrode (GDE) include serving as a critical component in fuel cells, electrolyzers, and other electrochemical devices. Its role is to facilitate the electrochemical reactions between gases (typically hydrogen or oxygen) and an electrolyte. Specifically, the uses of GDE encompass:

Fuel Cells: GDE is a crucial component in fuel cells, promoting electrochemical reactions between hydrogen and oxygen at the anode and cathode, respectively, to generate electrical energy. This electrical energy can be used for powering electric vehicles and various electrical devices.

Electrolyzers: In electrolyzers, GDE facilitates electrochemical reactions involving ions or molecules within the electrolyte. These reactions are used for applications such as water electrolysis, hydrogen production, and electrochemical synthesis.

Batteries: In certain types of batteries, GDE can enhance performance and efficiency, particularly in high-energy-density batteries.

Hydrogen Energy Applications: GDE is also employed in hydrogen energy applications, including hydrogen fuel cell vehicles and hydrogen production equipment.

In summary, GDE plays a pivotal role in various electrochemical applications by providing an efficient gas reaction interface, thereby facilitating electrochemical reactions that lead to the generation of electrical energy or the realization of other electrochemical processes