Rotating Ring Disk Electrode (RRDE)

Electrochemistry Instruments and Accessories, Electrodes, Working Electrodes

Rotating Ring Disk Electrode (RRDE), Pine Compatible

Widely used in fuel cell catalysis, sensor development, corrosion studies, electroplating, and understanding fundamental redox chemistry

Overview | Specifications | Pricing and Options

A rotating ring disk electrode (RRDE) is a powerful electrochemical electrode that consists of two concentric, independently controlled electrodes with a central disk and a surrounding ring, separated by an insulator. The central disk serves as the primary and the ring serves as the secondary working electrode, respectively. The central disk and the ring rotates together to create a controlled flow that pulls reactants to the disk and then carries the disk's products radially outwards to the ring. RRDE is engaged to study reaction mechanisms by generating products at the disk and detecting them at the ring, revealing intermediates and quantifying reaction pathways. The RRDE takes advantage of the high product concentration near the electrode surface to detect products in situ at the ring.

Rotating ring disk electrode as a quantitative in situ electroanalytical detection tool is widely used in fuel cell catalysis like oxygen reduction reaction (ORR), sensor development, corrosion studies, electroplating, and understanding fundamental redox chemistry, allowing simultaneous measurement of products/intermediates at the ring and reactants at the disk. They help determine reaction steps, selectivity, diffusion coefficients, and catalyst efficiency by separating kinetic and mass transfer effects, making them vital for catalysis research and advanced materials science.

Specifications

All dimensions are in millimeters.

RRDE Electrode Glassy Carbon Diameter	5.61 mm
Platinum Ring Outer Diameter	7.92 mm
Platinum Ring Inner Diameter	6.25 mm
PTFE Outer Diameter	15 mm
Electrode Height	50 mm

Pricing and Options

Product Name	Product Code	Price
Rotating Ring Disk Electrode, Glassy Carbon, Platinum, External thread, Pine compatible	C2036E1	£2390

Literature and Reviews

I. Filimonenkov et al. (2018), Rotating ring-disk electrode as a quantitative tool for the investigation of the oxygen evolution reaction, Electrochim. Acta, 286, 304-312; DOI: 10.1016/j.electacta.2018.08.056.
W. Fujita et al. (2023), Rotating Ring-Disk Electrode Voltammetry for Determining the COR–OER Selectivity in Seawater Electrolysis under Neutral to Alkaline Conditions, J. Electrochem. Soc., 170, 036507; DOI 10.1149/1945-7111/acc13c.
C. Li et al. (2021), Multielectron Electrode Reaction Kinetics with RDE and RRDE: An Advanced Electrochemical Laboratory Experiment, J. Chem. Educ., 98 (9), 3026–3031; DOI: 10.1021/acs.jchemed.1c00202.

J. Khushvakov et al. (2021), Following Electroenzymatic Hydrogen Production by Rotating Ring–Disk Electrochemistry and Mass Spectrometry, Angew. Chem. Int. Ed., 60 (18), 10001-10006; DOI: 10.1002/anie.202100863.
A. Koyejo et al. (2024), Electroreduction of CO2 by Hybrid Cu-TiO2/rGO Catalyst: Qualitative Detection of Products using Rotating Ring Disc Electrode, ChemElectroChem, 11 (17), e202400231; DOI: 10.1002/celc.202400231.

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PEEK vs PTFE

The choice of whether to use PEEK (polyether ether ketone) or PTFE (polytetrafluoroethylene, Teflon) comes down to the conditions of your planned experiments. The key polymer properties to consider are: