Here, measurements take place on a polished glassy carbon disk embedded in an insulating body. Thanks to its chemical stability and wide potential range, glassy carbon is the most frequently used carbon electrode material; the wide range comes from its high overpotential for hydrogen and oxygen evolution. Electrocatalysis tests are run by drop-casting catalyst ink onto the disk, and it is also common in voltammetry and sensor work.

In the T-shaped model the lower section of the body is a wider cylinder, with the glassy carbon 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: Ø1–6 mm (US) or Ø1–10, 15, 20 mm (Japan). The PEEK body is hard and creep-resistant. Straight and L-shaped types and a PTFE version are offered separately.

Key Features

Glassy carbon: the most common type of carbon electrode; chemically stable with a wide potential range
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
US-origin (Ø1–6 mm) and Japan-origin (Ø1–10, 15, 20 mm) glassy carbon disk options
Surface can be polished to a mirror finish; final polishing with 0.05 µm alumina
Surface suited to preparing thin films by drop-casting catalyst ink onto the disk
Body length 60 mm, total length ≈75 mm (manufacturer data); gold-plated contact pin at the tail

Technical Specifications

Electrode type	Glassy carbon 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 diameter	US-origin: 1, 2, 3, 4, 5, 6 mm · Japan-origin: 1–10, 15, 20 mm
Glassy carbon length	5–10 mm (manufacturer data)
Body / total length	60 mm / ≈75 mm (manufacturer data)
Connection	Gold-plated pin
Approx. potential window (vs. RHE)	0.1 M H₂SO₄: ≈ −0.42 to +1.76 V · 0.1 M NaOH: ≈ −0.64 to +1.66 V; depends on electrolyte and purity
Polishing	Alumina slurry on microcloth (final step 0.05 µm), then rinse with pure water; 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

Origin and Diameter	Description
US-Origin 1 mm	US-origin glassy carbon, Ø1 mm disk
US-Origin 2 mm	US-origin glassy carbon, Ø2 mm disk
US-Origin 3 mm	US-origin glassy carbon, Ø3 mm disk
US-Origin 4 mm	US-origin glassy carbon, Ø4 mm disk
US-Origin 5 mm	US-origin glassy carbon, Ø5 mm disk
US-Origin 6 mm	US-origin glassy carbon, Ø6 mm disk
Japan-Origin 1 mm	Japan-origin glassy carbon, Ø1 mm disk
Japan-Origin 2 mm	Japan-origin glassy carbon, Ø2 mm disk
Japan-Origin 3 mm	Japan-origin glassy carbon, Ø3 mm disk
Japan-Origin 4 mm	Japan-origin glassy carbon, Ø4 mm disk
Japan-Origin 5 mm	Japan-origin glassy carbon, Ø5 mm disk
Japan-Origin 6 mm	Japan-origin glassy carbon, Ø6 mm disk
Japan-Origin 7 mm	Japan-origin glassy carbon, Ø7 mm disk
Japan-Origin 8 mm	Japan-origin glassy carbon, Ø8 mm disk
Japan-Origin 9 mm	Japan-origin glassy carbon, Ø9 mm disk
Japan-Origin 10 mm	Japan-origin glassy carbon, Ø10 mm disk
Japan-Origin 15 mm	Japan-origin glassy carbon, Ø15 mm disk
Japan-Origin 20 mm	Japan-origin glassy carbon, Ø20 mm 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
Cyclic and linear sweep voltammetry (CV, LSV), differential pulse voltammetry (DPV)
Electrocatalyst tests: thin films prepared by drop-casting catalyst ink onto the disk
Development of electrochemical sensors, biosensors and chemically modified electrodes
Setups where the electrode is frequently removed and refitted and the body is under mechanical stress