This group collects auxiliary materials often needed when preparing electrodes: iridium oxide mesh for electrocatalysis and electrolysis, copper and nickel foam as current collectors or three-dimensional electrode substrates, and PTFE film for hydrophobic layers or insulation. Iridium oxide is one of the standard anode catalysts for the oxygen evolution reaction (OER) in acidic media, for example in PEM water electrolysis.

Nickel foam is mainly for alkaline media, while copper foam suits work where the anodic potential stays modest; metal foams can dissolve under acidic or strongly anodic conditions. Other sizes and high-purity metal foils (silver, platinum, titanium, gold) can be quoted on request.

Key Features

Iridium oxide mesh: 100 × 100 mm, 0.16 mm thick; a material class used as OER anode in acidic media
Copper and nickel foam: 210 × 295 mm, 0.5 mm thick; three-dimensional current collector and substrate
Nickel foam is the common substrate in alkaline media (e.g. alkaline water electrolysis); it dissolves in acid
Copper foam oxidizes slowly in air and dissolves at high anodic potential
Common practice for metal foams: remove the surface oxide with dilute acid before use, then rinse with water and ethanol
PTFE film: 100 × 100 mm; hydrophobic, chemically resistant and insulating
Do not heat PTFE above about 300 °C; decomposition products are harmful
High-purity gold, silver, platinum and titanium foils on quotation

Technical Specifications

Product type	Electrochemical auxiliary materials
Iridium oxide mesh	100 × 100 mm, 0.16 mm thick
Copper foam	210 × 295 mm, 0.5 mm thick
Nickel foam	210 × 295 mm, 0.5 mm thick
Confirm before ordering	Substrate and coating loading of the iridium oxide mesh, pore structure of the metal foams and PTFE film thickness can be confirmed before ordering
PTFE film	100 × 100 mm
PTFE temperature	Up to about 260 °C in continuous use; do not heat above about 300 °C
Metal foils	Silver, platinum, titanium, gold: on request

Available Options

Electrode Material	Description
Iridium Oxide Mesh 100 × 100 × 0.16 mm	100 × 100 mm, 0.16 mm thick
Copper Foam 210 × 295 × 0.5 mm	210 × 295 mm, 0.5 mm thick
Nickel Foam 210 × 295 × 0.5 mm	210 × 295 mm, 0.5 mm thick
PTFE Film 100 × 100 mm	Polytetrafluoroethylene (PTFE) film, 100 × 100 mm

For sizes and specifications not listed above, you can request a custom quotation through the Quote Form.

Applications

OER anodes and electrolysis electrodes (iridium oxide mesh)
Nickel foam substrate for alkaline water electrolysis and electrocatalysis
Three-dimensional current collector in battery and supercapacitor electrodes (copper / nickel foam)
Electrodes on which the catalyst is grown or coated directly
Hydrophobic layer, insulation and gasket applications (PTFE film)