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Rotating Ring Disc Electrode (RRDE) 636A

The rotator for high-throughput RRDE, RDE and RCE experiments

 

 

  • Rotating Ring Disc Electrode (RRDE), Rotating Disc Electrode (RDE), or Rotating Cylinder Electrode (RCE) configuration
  • Rotational speeds to 10,000 RPM
  • A variety of disc and ring-disc electrode selections: different electrode materials; Quick-change vs. fixed configurations; PTFE vs. PEEK sheath
  • Rotational speed and on/off control via DAC control of many Princeton Applied Research potentiostats

 

 

Applications and Software

 


A system RRDE uses two potentiostats or a bipotentiostat to separately bias a ring electrode and a disc electrode. These two electrodes are mounted on a specially designed electrode tip._cc781905 -5cde-3194-bb3b-136bad5cf58d_The fluid flow created by the rotation of this tip in the electrolyte causes the mass transport of the products of the electrochemical reaction at the inner disc electrode to be measured by the outer ring electrode._cc781905 -5cde-3194-bb3b-136bad5cf58d_This study allows the investigation of electrochemical reaction pathways (mechanisms) common to fuel cell catalyst evaluations.


A system RDEuses a single potentiostat to polarize a disk electrode. The rotation of this disk electrode favors mass transport of ions in solution to the surface of the electrode. This Increased flux benefits physical electrochemistry applications such as electroplating and fundamental research.
 



A system CER uses a larger area electrode that has a different shape. This is a common configuration for studying rate-sensitive electrochemical corrosion, such as in an oil and gas pipeline .
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