Gold Rotating Disk Electrode (Au RDE)

Overview

The Au Rotating Disk Electrode (RDE) from ScienceGears is engineered for precise and reproducible electrochemical studies where controlled hydrodynamic conditions are essential. The electrode consists of a polished gold disk embedded in a chemically inert PTFE or PEEK body, ensuring outstanding corrosion resistance and electrical conductivity.

Principle of Operation

In RDE experiments, the electrode rotates at controlled speeds to create a well-defined diffusion layer, enabling accurate determination of kinetic and mass-transfer parameters in redox systems. The gold surface provides excellent catalytic activity for reactions involving oxygen reduction, CO₂ reduction, and thiol or sulfide adsorption studies.

Key Specifications

• Electrode Material: High-purity (99.99%) gold disk
• Disk Diameter: 5 mm standard (custom diameters available)
• Body Material: PTFE or PEEK housing for chemical stability
• Electrical Contact: Gold-plated connection pin for low-resistance contact
• Surface Finish: Mirror-polished and ready for immediate use
• Compatibility: Fits RDE rotator shafts from Autolab, Ivium, Pine, ALS Japan, BioLogic, and Gamry
  
  

Applications

Ideal for:

• Oxygen reduction and evolution studies (ORR/OER)
• Fuel cell and electrocatalyst screening
• CO₂ electroreduction and chloride oxidation
• Sensor calibration and surface adsorption research

Why Choose ScienceGears

ScienceGears offers complete flexibility to customise the Au RDE for any commercial rotator. All electrodes are manufactured with tight dimensional tolerances to ensure perfect alignment, reproducibility, and interchangeability with major RDE systems.
Complementary accessories such as RRDE electrodes, potentiostats, and corrosion test cells are also available for integrated electrochemical setups.

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Disclaimer: ScienceGears is not affiliated with Autolab, Ivium, Pine, ALS Japan, BioLogic, or Gamry. Brand names are used solely for compatibility reference.