MMO (Mixed Metal Oxide) anodes were originally developed for chlorine production through seawater electrolysis. However, since the 1980s, they have also been used in cathodic protection as sacrificial anodes. MMO anodes have several advantages, which have led to their increased application.

What are MMO Anodes?

Mixed Metal Oxide anodes (MMO anodes) are anodes composed of titanium coated with a thin layer of mixed metal oxide. This crystalline layer conducts electricity and activates the titanium to function as an anode. One of the advantages of MMO anodes is their low consumption. Additionally, they are suitable for a wide range of environments, from soil and mud to saltwater.

Advantages of MMO Anodes:
 

• Lightweight
• Chemical stable, even in acidic environments
• Low and even consumption
• Works at high current densities
• Good electrical conductivity

Unlike conventional anodes, MMO anodes are highly dimensionally stable. They have a long lifespan without significantly depleting while providing cathodic protection. In cathodic protection applications, Iridium oxide (IrO2) is often chosen for MMO anodes.

MMO Anodes at Merrem & La Porte

Merrem & La Porte supplies high-quality MMO anodes for cathodic protection. Our team of specialists is ready to advise you on the best product for your specific situation. Feel free to reach out to us for more information.