Corrosion Resistant, High Purity, and Catalytically Active Coating Solutions for Renewable Energy Generation and Storage

RIP2025-00146: Linde Advanced Material Technologies (Linde), formerly known as Praxair Surface Technologies, has been providing coating solutions for a wide variety of applications since 1958. These applications demand different performance requirements like thermal protection, wear resistance, and corrosion protection.Our interaction with customers to solve their surface challenges continues to broaden our coating solution portfolio.

Among the most challenging applications, environments where severe acidic corrosion may occur, are found in the chemical, pharmaceutical, semiconductor integrated circuits, power generation, and, more recently, the field of renewable energy. In this recent and fast-growing sector, different requirements coexist which pose high level challenges to the materials and process engineers. For example, metal components must be protected against corrosion up to 260°C (500°F) and should only leach-out a low level of foreign matter like cations or organics.

Linde will review a few case histories in the renewable energy sector providing details on the customer requirements and the commercially available coating solutions. Even though some of the coating technologies are not new, Linde will explain how we modified or fine-tuned our coating solution to make them suitable and successful in the renewable energy sector. In the presentation a highlight will be given to:

a) Fluoropolymer-based coating solutions and their applications for fuel cells, electrolyzers, and storage systems; and

b) Diffused aluminized coating solutions for corrosion protection in fuel cells; and

c) Finally, some specialty materials, which can serve as the main ingredients for catalytically active coating solutions in green hydrogen production.