Electrochemistry: Potentiostat, Galvanostat, EIS, FC test station

Rotating Ring Disk Electrode Rotator (RRDE-3A)

Introduction

RRDE-3A is a constant rotation system for use in hydrodynamic modulation rotating ring disk electrochemistry. A 7 mm diameter electrode with short stainless steel shaft provides for a miniature and concentric circle electrode system that is capable for highly accurate rotation and modulation even at radial modulation rates or wave forms.

RRDE-3A is electronically controlled by a proportional-integral closing loop circuit driving as an DC servo-motor. Electrodes are small and rapidly interchangeable. The unit also provides an adjustable valve system for inert gas purging inside the cell vial.

RRDE-3A is able to be operated as a stand-alone unit and directly controlled by a potentiostat. When the analysis starts, a built-in gas control allows purging the sample. Besides, the access to glass cell is easy for rinsing, cleaning, and replacing the electrodes. It is easy to remove and replace the cell vial.

Catalog No.	Description	Quantity
A-012180	RRDE-3A Rotating Ring Disk Electrode Apparatus	1
Content
	RRDE-3A glass cell vial 20 mL	1
	RRDE-3A glass cell vial 60 mL	1
A-012167	RE-1B Silver-Silver chloride reference electrode	1
A-002233	Pt counter electrode for VC-3 cell 5 cm Pt	1
A-011169	RDE GCE Glassy carbon Disk Electrode	1
A-012064	Spin coating adapter	1
A-012065	Nipple for purge valve	1
A-010058	TYGON tubing, OD1/4 x ID1/8 (1.3 m)	1
	Cell holder (Polypropylene) for RRDE-3A	1
A-012063	Teflon cap for RRDE-3A	1
	Instruction manual	1
	Power cable	1

Features

1. Remote- and manual-controlled rotation
2. Small sample volume (up to 10 - 15 mL)
3. Gas line connector is available
4. Remote- and manual-controlled purge lines
5. Mounted teflon holder is adapted for ALS reference and counter electrodes
6. Cell lead connects to all potentiostats
7. Open architecture for easy access to cell

Specifications

 

Size:	190 (w) x 230 (d) x 380 mm (h)
Weight:	6 kg
Rotational range:	100 to 8,000 rpm
Accuracy:	Error, < 2% at< 1,000 rpm, < 1% at > 2,000 rpm
Rotator shaft:	Stainless steel
Motor:	12 V, ironless core, low inertial DC servo
Power:	< 100 VA 100-240 VAC, 50/60 Hz
Operating temperature:	10 to 50°C
Inlet gas pressure:	5 psi maximum
Remote control:	One volt corresponds to 1,000 rpm Motor ON/OFF TTL or relay input to back panel connection Purge TTL or relay input to back panel connection

Working electrodes

The below working electrodes consist mainly of organic solvent-resistant resin, PEEK, and can easily be polished with PK-3 Electrode polishing kit.

 

Catalog No.	Classification	Length(mm)	OD(mm)	Ring size ID/OD(mm)	Disk diameter(mm)
Ring/Disk Electrode
A-011172	RRDE Pt Ring/Pt Disk Electrode	25	12	5.0/7.0	4.0
A-011162	RRDE Pt Ring/GC Disk Electrode	25	12	5.0/7.0	4.0
A-011163	RRDE Au Ring/GC Disk Electrode	25	12	5.0/7.0	4.0
A-011164	RRDE Pt Ring/Au Disk Electrode	25	12	5.0/7.0	4.0
Disk Electrode
A-011169	RDE GCE Glassy carbon Disk Electrode	25	12	--	3.0
A-011170	RDE PTE Platinum Disk Electrode	25	12	--	3.0
A-011171	RDE AUE Gold Disk Electrode	25	12	--	3.0
A-011966	RDE ALE Aluminum Disk Electrode	25	12	--	3.0
A-011967	RDE AGE Silver Eisk Electrode	25	12	--	3.0
A-011968	RDE CUE Copper Disk Electrode	25	12	--	3.0
A-011969	RDE NIE Nickel Disk Electrode	25	12	--	3.0
A-011970	RDE TAE Tantalum Disk Electrode	25	12	--	3.0
A-011971	RRDE TIE Titanium Disk Electrode	25	12	--	3.0
A-011972	RDE WE Tungsten Disk Electrode	25	12	--	3.0
A-011973	RDE CPE Carbon paste Disk Electrode	25	12	--	3.0