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 %.