Platinized Titanium Plate / Fiber Felt – Further Improves PEM Anode Materials Application Performance

Titanium sintered porous plate or titanium sintered felt can be used as an electrode plate to act as a catalyst and gas diffusion layer (GDL) for the hydrogen production reaction in an electrolyzer, which utilizes an electric current to break down water molecules into hydrogen and oxygen. Titanium sintered porous plate or titanium sintered felt has a minimum thickness of 0.25 mm and a porosity of 50% – 70%, which makes the structure favorable for gas-liquid mass transfer. Platinum plating can be applied to their surfaces to increase the conductivity of titanium sintered porous plates or titanium sintered felts. Without platinum plating, the titanium sintered porous plates or titanium sintered felts will suffer from passivation in high potential oxygen-rich environments and poor conductivity of TiO₂.

Platinized typically refers to the process of depositing a layer of platinum on a substrate, often for use as a catalyst. The base material can be titanium sintered felt and titanium sintered porous plate. Products with platinized substrates are often used in industry and research, electrochemical applications such as fuel cells, chemical sensors, and catalytic converters, where platinized coatings act as catalysts to facilitate chemical reactions.

Titanium sintered felt thickness

Titanium sintered felt width

Advantages of Platinized Titanium Plate / Fiber Felt as Anod

• Good corrosion resistance. Platinum has high corrosion resistance, plating a few micrograms of platinum can form a dense passivation film on the titanium substrate, effectively protecting the substrate to improve the service life of the electrode.
• Good electrical activity. Platinum has excellent electrochemical activity, which can improve the reaction rate and conversion efficiency of the electrode.
• Good high temperature resistance performance. Platinum can maintain good stability at higher temperatures, and platinized titanium anode can work stably in high temperature environments.
• Strong adsorption ability. Platinum has a strong surface adsorption ability, which can adsorb pollutants and improve anti-corrosion ability.

Plating Process of Platinized Titanium Plate / Fiber Felt

Pre-treatment of titanium sheet → electro-cleaning → water washing → activation → distilled water washing → electrochemical platinum plating → distilled water washing → blow-drying

Boegger Platinized Titanium Plate / Fiber Felt

• Adopting a special plating process, platinum plating on the surface of titanium substrate after special treatment, can be full platinum plating or partial platinum plating.
• Product surface is silver-white, with the advantages of uniform and delicate plating, firm bonding, high output current, and long service life.
• Mainly used in electroplating, biomedical, chemical synthesis, anode protection, etc.

Precautions

• Prevent hard objects from scratching, remove from the electrolyzer when stopping use, rinse the surface with water, and store it dry.
• The higher the current, the shorter the service life, and the use in the solution containing fluoride ions can rapidly damage the electrode.