RDE710 Rotating Electrode

 

Rotating Electrodes are important research tools for fuel cell researchers, corrosion scientists, and anyone interested in controlling the mass transport of reactants to the electrode surface.

The RDE710 Rotating Electrode is a research-grade rotator and features the ability to use rotating ring-disk, disk and, cylinder electrodes.  The rotation rate is adjustable from 50 – 10,000 rpm (revolutions per minute).  The Controller has a Liquid Crystal Display (LCD) which indicates the rotation rate and is controlled by a rotation rate knob.  Optionally, the rotation rate may be controlled by your Gamry Potentiostat in specific experiments.  The electrode assembly of the rotator has a versatile design that allows for the use of diverse electrode types.  Different shaft and electrode tips can be selected depending on your desired use.  Different shafts are used for disk and cylinder (Part No. 970-07) or ring–disk experiments (Part No. 970-10).
 

Click the photo to enlarge...

 

Rotating ring-disk electrodes are used where products generated at the disk electrode are monitored at the ring electrode.  A bi-potentiostat is required for these experiments and Gamry can supply a setup using two potentiostats collecting data synchronously when connected to the same computer.  A number of ring-disk electrodes are available including platinum-platinum, gold-gold and glassy carbon-glassy carbon.

Rotating disk experiments are performed where defined mass transport to the sample electrode is desired.  An example of this type of experiment would be catalyst evaluation.

Rotating cylinder experiments are important in the oil industry to simulate the corrosion environment inside a pipeline, thus avoiding the need to assemble expensive flow loop setups.  The rotator is an ideal tool because flow conditions are generally turbulent even at low rotation rates.  Cylinders can be made from a variety of different metals to evaluate their performance including 1018 carbon steel, 316 stainless steel and 430 stainless steel.

The electrodes for the rotator are sold separately and include a wide selection of standard materials such as gold, platinum, glassy carbon, carbon steel, stainless steel, etc.  Custom materials are available on request.

Also available are a selection of glass cell kits for use with the RDE710 Rotating Electrode.  There are three kits available:
Cell kit for rotating disk and ring-disk experiments: Gamry part number 990-243
Cell kit for rotating cylinder experiments: Gamry part number 990-248
Jacketed cell kit for rotating experiments: Gamry part number 990-249

Home | Products | App Notes | Sales | Contact | News | Support | Search

Batteries | Fuel Cells | Corrosion | Paints & Coatings | Physical Electrochemistry

Gamry Instruments © 1997-2008
  
Last revised on Monday, February 25, 2008