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RRDE

Autolab RRDE (Rotating Ring Disc Electrode)

The Autolab Rotating Ring Disc Electrode (RRDE) is the The Autolab RRDE is provided with a motor controller latest addition to the Metrohm Autolab accessories for that can be operated manually or by the NOVA software.

electrochemical measurements.

The rotation rate can be specifi ed between 100 RPM and 10,000 RPM in 1 RPM steps.

The Autolab RRDE can be used to perform electrochemical measurements under controlled hydrodynamic condi-tions. 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 fi tted with the BA, dual-mode bipotentiostat module.





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 or Glassy Carbon. The RRDE electrode tips are dimensioned with an electrode gap of 375 µm and a theoretical collection efficiency of 24.9 %.

SPECIFICATIONS

Autolab RRDE

• Speed control

Manual or by NOVA software

• Motor speed range 100 – 10,000 RPM +/- 1 RPM

• Acceleration/deceleration 4,000 RPM/s

• Maximum disc current 500 mA

• Maximum ring current 50 mA

• Contact

Double sealed Hg pool

• Electrode tips

Pt disc/Pt ring, Au disc/Pt ring, GC disc/Pt ring

• Collection efficiency 24.9 %

• Electrode gap

375 µm

G, CH-9100 Herisau

ohm A

witzerland by Metr

Dedicated to research www.metrohm-autolab.com

, printed in S

SW

11

Subject to change

Layout by Ecknauer+Schoch A 8.000.5130EN – 2014-