This product group covers disk working electrodes made of materials other than glassy carbon, platinum, gold and silver. When you want to study the electrochemical behavior of a material directly, a flat disk of that material is a clean starting point: iron, steels and copper are used in corrosion studies, palladium in hydrogen adsorption and desorption research, nickel in sensors with modified surfaces, and carbon paste in modified electrodes prepared by mixing other substances into the paste.

Choose the material for your experiment; diameter options range from 2 to 6 mm depending on the material. A carbon paste electrode is not polished; its surface is refreshed by renewing the paste. The silver-based mercury film electrode is intended for stripping voltammetry of heavy metals. Mercury and cadmium are toxic; handle these electrodes with gloves and dispose of their waste as hazardous waste. Materials not on the list can be quoted.

Key Features

16 models: pyrolytic graphite, graphite, isotropic graphite, nickel, tungsten, iron, carbon steel, stainless steel, zinc, copper, titanium, palladium, cadmium, two carbon paste models and silver-based mercury film
Disk diameter 2–4, 2–5 or 2–6 mm depending on material; palladium 3 mm, cadmium 2 mm
Iron, carbon steel, stainless steel and copper options for corrosion studies
Two carbon paste bodies, fixed and adjustable; the surface is refreshed by renewing the paste
Silver-based mercury film electrode for stripping voltammetry of heavy metals
Materials not on the list can be quoted

Technical Specifications

Electrode type	Disk working electrode with insulating body
Carbon materials	Pyrolytic graphite (2–6 mm), graphite (2–6 mm), isotropic graphite (2–4 mm), carbon paste fixed / adjustable (2–4 mm)
Iron and steels	Iron (2–4 mm), carbon steel (2–5 mm), stainless steel (2–5 mm)
Other metals	Nickel, tungsten, zinc, copper, titanium (2–4 mm); palladium (3 mm); cadmium (2 mm)
Mercury film electrode	Silver-based mercury film, 2 × 10 mm
Surface renewal	Metal disks (e.g. nickel): alumina on microcloth; pyrolytic graphite: fine emery paper with pure water (no polishing slurry); carbon paste: not polished, remove about 1 mm of paste and renew the surface
Safety	Mercury and cadmium are toxic: wear gloves and dispose of waste as hazardous waste
Custom material	On request

Available Options

Electrode Material	Description
Pyrolytic Graphite 2 – 6 mm	Pyrolytic Graphite 2 – 6 mm disk working electrode
Graphite 2 – 6 mm	Graphite 2 – 6 mm disk working electrode
Isotropic Carbon Graphite 2 – 4 mm	Isotropic Carbon Graphite 2 – 4 mm disk working electrode
Nickel 2 – 4 mm	Nickel 2 – 4 mm disk working electrode
Carbon Paste (Fixed) 2 – 4 mm	Carbon Paste (Fixed) 2 – 4 mm disk working electrode
Carbon Paste (Adjustable) 2 – 4 mm	Carbon Paste (Adjustable) 2 – 4 mm disk working electrode
Tungsten 2 – 4 mm	Tungsten 2 – 4 mm disk working electrode
Iron 2 – 4 mm	Iron 2 – 4 mm disk working electrode
Carbon Steel 2 – 5 mm	Carbon Steel 2 – 5 mm disk working electrode
Stainless Steel 2 – 5 mm	Stainless Steel 2 – 5 mm disk working electrode
Zinc 2 – 4 mm	Zinc 2 – 4 mm disk working electrode
Copper 2 – 4 mm	Copper 2 – 4 mm disk working electrode
Titanium 2 – 4 mm	Titanium 2 – 4 mm disk working electrode
Palladium 3 mm	Palladium 3 mm disk working electrode
Cadmium 2 mm	Cadmium 2 mm disk working electrode
Silver-Based Mercury Film 2 × 10 mm	Silver-Based Mercury Film 2 × 10 mm disk working electrode

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

Applications

Corrosion research with iron, steels and copper
Hydrogen adsorption and desorption studies with palladium
Anodic stripping voltammetry of heavy metals (e.g. Pb, Cd, Zn, Cu) with the mercury film electrode
Modified electrode and sensor development with carbon paste and nickel
Studying material-specific electrocatalysis, deposition and dissolution behavior