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DSA® electrode

Under the DSA® trademark, De Nora offers a broad range of products consisting of metal anodes and cathodes coated with a mixed metal oxide (MMO) catalyst.

DSA® electrodes are utilized in various electrochemical processes
DSA® electrodes are utilized in various electrochemical processes

anodes-electrodes of the new DSAs®, circa 1969

DSA electrodes have a long life, ensuring excellent electrolytic performance and cell efficiency- enabling significant energy savings and optimal operating conditions. Their light and stable design allows for easy handling and application in a variety of electrochemical equipment, including those with zero electrode gap, while mitigating pollution problems derived from soluble or unstable anodes. Their designation as "dimensionally stable" reflects their ability to resist corrosion and degradation over time, maintaining both their shape and functionality. 

De Nora has been a pioneer in the use of mixed metal oxide (MMO) anodes since 1969, initially to produce chlorine and caustic soda. Since then, De Nora has expanded their application to all major electrochemical processes.  

Today, De Nora is a recognized specialist and industry leader in the production of mixed metal oxide  DSA electrodes- a brand known and recognized worldwide with more than 60 patent families* with over 900 territorial extensions, distributed across 70 countries.

Key features and characteristics of DSA electrodes:

Copper Foil DSA detachable panels

detachable DSA® anodes for copper foil manufacturing

  • Great Stability: insoluble anodes do not deform or degrade during use, ensuring consistent voltage performance and efficient operation over time. 
  • High Efficiency: electrodes, due to tailored catalytic coatings, facilitate desired reactions with minimal energy consumption and/or ohmic losses, leading to cost savings and improved purity of the products because of an optimal process. 
  • Customizable: Electrodes can be customized to suit different applications and cell configurations—they can be tailored to specific electrolytes, operating conditions, and process parameters. 
  • Reusable: at the end of the catalytic activity, the electrodes may be reactivated- recovering the initial performances without replacing the mechanical structure, hence minimizing the electrodes’ total cost of ownership (TCO) 

Overall, DSA electrodes play a crucial role in many industrial processes where reliable and durable electrochemical performance is essential. Their corrosion resistance, stability, and efficiency make them a preferred choice for demanding applications in diverse fields. 

Specific applications and processes for DSA electrodes include:

Specific applications and processes for DSA electrodes include:
  • Chlor-alkali processes for chlorine and caustic soda production
  • Water electrolysis process for water splitting into hydrogen and oxygen 
  • Electroplating, electrogalvanizing, electrocoating for surface finishing (hard and decorative plating) 
  • Copper Foil (Cu foil) manufacturing processes 
  • Printed Circuit Board (PCB) production- horizontal plating and vertical plating for micro via filling  
  • Seawater chlorination for sodium hypochlorite production 
  • Saltwater pool electro-chlorination  
  • Advanced oxidation processes for wastewater treatment 
  • Corrosion prevention- traditional, concrete, and offshore 

For more information about DSA® anodes

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