Rotating Ring Disk Electrode (RRDE)

The Autolab RRDE is a low-noise rotating ring disk electrode that can be used to perform electrochemical measurements under controlled hydrodynamic conditions. The ring and disc electrode assembly provides the means to detect reaction intermediates in situ through collection experiments.

The Autolab RRDE uses 2 identical friction-less mercury contacts for low noise measurements and can be used with any Autolab potentiostat/galvanostat fitted with the BA, dual-mode bipotentiostat module.

The rotation speed of the RRDE is controlled manually with the button on the front of the motor control unit. The RRDE can also be controlled remotely with the Autolab software.

The rotation speed can be varied continuously between 100 and 10,000 rpm with a resolution of 1 rpm.

The same motor control unit can be used in combination with the RRDE and the RDE.

The Autolab RRDE electrode tips are fitted with a 5 mm electrode disc and a thin concentric platinum ring.

The electrode disc is available in gold, platinum and glassy carbon. The RRDE electrode tips are dimensioned with an electrode gap of 375 μm and a theoretical collection efficiency of 24.9 %.

Rotating Disk Electrode (RDE)

 The Autolab RDE is a high-end rotating disk electrode for measurements on systems where high rotation speed and low noise are required. The unit can go up to 10,000 rpm, a liquid Hg contact guarantees low noise. The PCTFE shaft has been designed to fit in Metrohm cell vessels, but also fits on most other electrochemical cells. The tip diameter is 10 mm, with an active surface diameter of 3 mm or 5 mm.

The rotation speed of the RDE is controlled manually with the button on the front of the motor control unit. The RDE can also be controlled remotely with the Autolab software. The rotation speed can be varied continuously between 100 and 10,000 rpm with a resolution of 1 rpm.

The same motor control unit can be used in combination with the RDE and the RRDE.

The maximum operating temperature for RDE and tip is 40 °C.

The Autolab RDE is compatible with a wide range of working electrodes.

Autolab Rotating Cylinder Electrode (RCE)

Autolab Rotating Cylinder Electrode (RCE) with a non-carbon liquid contact provides superior noise-free corrosion measurements. The RCE’s Hg contact produces smooth and accurate data that requires no special handling or tools for use in your lab.

With the highest rotation rate among commercially available systems, the Autolab Rotating Cylinder Electrode allows you to simulate the widest variety of pipe flow conditions in your lab. The RCE has double the rotation rate of any other 12 mm rotating cylinder electrode making achievable flow rates are 50% higher than any other commercially available RCE.

Maximum simulated turbulent flow rates:

1 inch/2.66 cm pipe with schedule 40 is 365 cm/s

24 inch/57.48 cm pipe with schedule 40 is 566 cm/s

The Autolab RCE is very compact, only a tenth of the size of other commercially available RCEs. You can access the full rotation rate of the Autolab RCE (100-5000 rpms) with a 12 mm cylinder.

Operating temperature range:  max 40 C°

Exposed sample surface:  3 cm2