Measurements take place on a flat silver disk embedded in an insulating body. A silver disk electrode is chosen for two main areas: as a catalyst surface with high CO selectivity in the electrochemical reduction of carbon dioxide, and in analytical work such as cyanide and sulfide determination. Between measurements the surface is easily renewed by a short polish with alumina.

In the T-shaped model the lower section of the body is a wider cylinder, with the silver disk on its end face. This shape is chosen to fit cells and holders designed for it; check your cell's electrode port before ordering. Disk diameters: Ø2–6 mm. The PEEK body is hard and creep-resistant. Straight and L-shaped types and a PTFE version are offered separately.

Key Features

Silver disk: a catalyst surface with high CO selectivity in CO₂ reduction
PEEK body: hard and rigid (Shore D ≈ 85) and resistant to creep under load; not for use with concentrated sulfuric or nitric acid
T-shaped body: the lower section of the straight body is a wider cylinder; the disk sits on its end face
Disk diameter options Ø2, 3, 4, 5 and 6 mm
Easy surface renewal with a 1–2 minute alumina polish
Suitable for analytical applications such as cyanide and sulfide determination
Body length 60 mm, total length ≈75 mm (manufacturer data); gold-plated contact pin at the tail

Technical Specifications

Electrode type	Silver disk working electrode
Electrode shape	T-shaped; lower body section is a wider cylinder, disk on its end face
Body material	PEEK (polyether ether ketone)
Disk material	Silver
Disk diameter	2, 3, 4, 5, 6 mm
Silver disk length	5–10 mm (manufacturer data)
Body / total length	60 mm / ≈75 mm (manufacturer data)
Connection	Gold-plated pin
Polishing	Alumina with pure water on microcloth for 1–2 minutes; rinse, and if needed ultrasonic cleaning for no more than 5 minutes
Body chemical resistance	Resistant to most aqueous and organic media; not compatible with concentrated sulfuric acid, concentrated nitric acid or halogen acids such as HF, HBr, HI
Operating temperature	Not specified for this product. One electrode maker recommends 10–80 °C for similar PEEK-body disk electrodes; extreme temperatures can damage the disk–body seal

Available Options

Diameter	Description
2 mm	Ø2 mm silver disk
3 mm	Ø3 mm silver disk
4 mm	Ø4 mm silver disk
5 mm	Ø5 mm silver disk
6 mm	Ø6 mm silver disk

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

Applications

Voltammetry and impedance measurements in cells and holders designed for the T-shaped body
Electrochemical CO₂ reduction (CO₂RR) and CO selectivity studies
Cyanide and sulfide determination
Comparing electrocatalyst surfaces against a flat silver reference surface
Setups where the electrode is frequently removed and refitted and the body is under mechanical stress