636A Rotating Ring-Disk Electrode (RRDE)
The rotator for high-performance RRDE, RDE and RCE experiments.

Product Details
- Rotating Ring-Disk Electrode (RRDE), Rotating Disk Electrode (RDE) or Rotating Cylinder Electrode (RCE) Configuration
- Rotational Speeds to 11,000 RPM
- A variety of Disk and Ring-Disk Electrode selections: different electrode materials; Quick-Change versus Fixed configurations; PTFE versus PEEK shroud
- On/Off and Rotational Rate Control through DAC control of many potentiostats from Princeton Applied Research
| Specifications | 636A RRDE Rotating Ring-Disk Electrode |
| Compatible Configurations | RRDE RDE RCE |
| Arbor, Shaft | Option of RDE0070 or RDE0027 |
| Rotation Rate Range | 50 - 10,000 RPM |
| Power | Switchable Power Supply Compatible at 110 or 220V |
A RRDE system uses two potentiostats or a bipotentiostat to separately polarize a Ring electrode and a Disk electrode. These two electrodes are co-mounted on a specially designed electrode tip. Fluid flow created by the rotation of this tip in electrolyte causes mass-transport of the products from electrochemical reaction at the inner disk electrode to be measured by outter ring electrode. This study allows investigation of electrochemical reaction paths (mechanisms) common to fuel cell catalyst evaluations.
A RDE system uses a single potentiostat to polarize a Disk electrode. Rotation of this disk electrode encourages mass-transport of ions in solution to the electrode surface. This increased flux benefits physical electrochemistry applications, such electroplating and fundamental research.
A RCE system uses a larger area electrode that is a different form. This is common configuration for studying velocity-sensitive electrochemical corrosion such as in an oil and gas pipeline.
| Specifications | 636A |
| Input Power | Switching power supply for 115V AC, 60 Hz or 240V AC, 50 Hz |
| Weight | Body with base: 23 lbs Control unit: 11.5lbs |
| Speed Control |
Closed loop servo-system. Temperature compensated tach generator mounted on motorshaft, providing rotational speed information |
| Speed Range | 50RPM to 11,000RPM |
| Precision | Better than ±1% |
| Motor | 1/50 HP permanent magnet DC |
Fixed Disk Electrodes for RDE
These require the RDE0027 to be compatible with the 636A RRDE
| Fixed Disk Electrodes for RDE | 636A RRDE + RDE0027 Shaft |
| RDE0005 | Fixed-Disk Electrode Au RDE Tip (PTFE) |
| RDE0005PK | Fixed-Disk Electrode Au RDE Tip (PEEK) |
| RDE0008 | Fixed-Disk Electrode GC RDE Tip (PTFE) |
| RDE0008PK | Fixed-Disk Electrode GC RDE Tip (PEEK) |
| RDE0004 | Fixed-Disk Electrode Pt RDE Tip (PTFE) |
| RDE0004PK | Fixed-Disk Electrode Pt RDE Tip (PEEK) |
Fixed Disk Electrodes for RDE
These require the RDE0070 to be compatible with the 636A RRDE
| Fixed Disk Electrodes for RDE | 636A RRDE + RDE0070 Shaft |
| RDE0007 | Fixed-Disk Electrode Au RDE Tip (PTFE) |
| RDE0007PK | Fixed-Disk Electrode Au RDE Tip (PEEK) |
| RDE0009 | Fixed-Disk Electrode GC RDE Tip (PTFE) |
| RDE0009PK | Fixed-Disk Electrode GC RDE Tip (PEEK) |
| RDE0006 | Fixed-Disk Electrode Pt RDE Tip (PTFE) |
| RDE0006PK | Fixed-Disk Electrode Pt RDE Tip (PEEK) |
Fixed Electrodes for RRDE
These require the RDE0070 to be compatible with the 636A RRDE
| Fixed Disk Electrodes for RRDE | 636A RRDE + RDE0070 Shaft |
| RDE0071 | Fixed Electrode Pt Disk - Pt Ring RRDE Tip (PTFE), 0.18-mm gap |
| RDE0071PK | Fixed Electrode Pt Disk - Pt Ring RRDE Tip (PEEK), 1-mm gap |
| RDE0072 | Fixed Electrode GC Disk - Au Ring RRDE Tip (PTFE), 0.32-mm gap |
| RDE0072PK | Fixed Electrode GC Disk - Au Ring RRDE Tip (PEEK), 1-mm gap |
| RDE0073 | Fixed Electrode GC Disk - Pt Ring RRDE Tip (PTFE), 0.32-mm gap |
| RDE0073PK | Fixed Electrode GC Disk - Pt Ring RRDE Tip (PEEK), 1-mm gap |
| AFE7R9GCGC | Fixed Electrode GC Disk - GC Ring RRDE Tip (PTFE), 0.32-mm gap |
| RDEAFE6R2GCGC | Fixed Electrode GC Disk - GC Ring RRDE Tip (PEEK), 1-mm gap |
| RDEAFE6R2AUAU | Fixed Electrode Au Disk - Au Ring RRDE Tip (PEEK), 1-mm gap |
ChangeDisk Tips for RDE, RRDE
These require Electrode Inserts and Tools and RDE0070 to be compatible with the 636A RRDE
| ChangeDisk Electrodes for RDE, RRDE | 636A RRDE + RDE0070 Shaft + Electrode Inserts and Tools |
| ChangeDisk RDE Tips | |
| RDE0081 | ChangeDisk RDE Tip (PTFE) |
| RDE0081PK | ChangeDisk RDE Tip (PEEK) |
| ChangeDisk RRDE Tips |
|
| RDE0082AU | ChangeDisk RRDE Au Ring Tip (PTFE), 1.5-mm gap |
| RDE0082AUPK | ChangeDisk RRDE Au Ring Tip (PEEK), 1.5-mm gap |
| RDE0082PT | ChangeDisk RRDE Pt Ring Tip (PTFE), 1.5-mm gap |
| RDEAFE6R1PTPK | ChangeDisk RRDE Pt Ring Tip (PEEK), 1.5-mm gap |
ChangeDisk Disk Electrode Inserts and Tools
These are compatible with Change Disk Tips, RDE0070, 636A RRDE
| ChangeDisk Disk Electrode Inserts and Tools |
Electrode Inserts and Tools (Requires 636A RRDE, RDE0070, Change Disk Tip) |
| Inserts | |
| AFED050P040GC | GC Disk Insert |
| RDE0083PT | PT Disk Insert |
| RDEAFED050P040AU | AU Disk Insert |
| RDEAFED050P040T5 | 430 SS Disk Insert |
| Tools | |
| RDEAFE6K050 | ChangeDisk Toolkit |
| RDE0085 | Replacement U-Cups (PTFE, pack of 3) |
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