Sintered nickel felt is often used as a gas diffusion layer (GDL) in proton exchange membrane (PEM) electrolyzers. PEM electrolyzers use an electrochemical process to split water into hydrogen and oxygen gas. Sintered nickel felt is an ideal material for use as a GDL in PEM electrolyzers because it has a high surface area and good electrical conductivity, which helps to promote efficient gas diffusion and water splitting.
Sintered nickel felt is a porous material made from nickel fibers that are bonded together through a sintering process. The result is a highly porous material with a three-dimensional network of interconnected pores. This structure allows for the efficient diffusion of gases, including hydrogen and oxygen, through the material.
In a PEM electrolyzer, the sintered nickel felt GDL is typically placed between the electrode and the membrane. The GDL provides a pathway for gas to reach the electrode and promotes even distribution of gas across the electrode surface. The porous structure of the GDL also helps to reduce the buildup of water on the electrode surface, which can impede the reaction.
Overall, the use of sintered nickel felt as a GDL in PEM electrolyzers can help to improve the efficiency and performance of the electrolyzer, leading to more cost-effective and sustainable hydrogen production.
