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E7R9 Series Fixed-Disk ThinGap Rotating Ring-Disk Electrode, Glassy Carbon (GC) Disk, Platinum (Pt) Ring, PTFE separator/shroud
7 Citations
Part Number
AFE7R9GCPT
The E7R9 Series Fixed-Disk Rotating Ring-Disk Electrode (RRDE) tip is often used for electrocatalyst-based research such as oxygen reduction reaction (ORR) experiments. This high quality, precision RRDE tip is Fixed-Disk style, which means the disk electrode is fixed in position and cannot be removed or changed. The ring electrode is also permanently-fixed into position and cannot be removed. The RRDE tip features a sub-millimeter gap between the disk and ring and has a high collection efficiency. The E7R9 series has a thin PTFE separator between disk and ring, and a PTFE shroud. This tip threads into compatible shafts and is not designed to be used by itself. Many other configurations of RRDE tips are also available.
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Customers must be logged into their account to view prices. Not all regions provide pricing online. If you do not see prices, you can obtain them from the designated sales channel in your region.
Maximum Rotation Rate: 3000 RPM
Never exceed maximum rotation rate when working with rotating electrodes.
Maximum Rotation Rate
All rotating electrodes, including RDE, RRDE, and RCE, have an assigned maximum rotation rate. The maximum rotation rate is specific to each electrode series. Do not exceed the maximum rotation rate when working with rotating electrodes.
Shafts sold separately.
Given the wide range of electrodes we offer, where each series requires one of several rotating shafts, shafts must be purchased separately for the MSR and MSR evo rotators. Consult the RDE, RRDE, and/or RCE specifications to learn which shaft is compatible.
Compatibility Notice
This product is only compatible with the MSRX (AFMSRX), MSR (AFMSRCE), MSR evo (AFMSR24), and WaveVortex 10 (AF01WV10) electrode rotators.
Thermal Stability Range: 10°C - 25°C
Electrode damage may occur at temperatures beyond recommended range. This range is provided for electrodes with PTFE or PCTFE shrouds.
E7R9 Series Fixed-Disk ThinGap Rotating Ring-Disk Electrode, Glassy Carbon (GC) Disk, Platinum (Pt) Ring, PTFE separator/shroud
Working Electrodes
Ring Electrodes
Product Ring material
Platinum (Pt)
Product Ring crystal lattice
Polycrystalline
Product Ring material purity
99.99%
Product Ring finish
Mirror Polish
Product Ring outer diameter
7.92 mm
Product Ring inner diameter
6.25 mm
Product Ring thickness
0.835 mm
Product Ring disk gap
0.32 mm
Product Ring disk separator material
PTFE
Product Collection efficiency
37%
Disk Electrodes
Product Disk electrode style
Fixed Disk
Product Disk material
Glassy Carbon (GC)
Product Disk crystal lattice
polycrystalline
Product Disk material purity
100%
Product Disk finish
Mirror Polish
Product Disk diameter
5.61 mm
Product Disk type
Fixed (embedded in electrode tip)
Product Disk series compatibility
None (Fixed Disk)
Electrode Tips
Product Tip maximum rotation rate
3000 RPM
Product Tip shroud material
PTFE
Product Tip shroud diameter
15 mm
Product Tip shroud length
25.4 mm
Product Tip length (overall)
49 mm
Rotating Electrodes
Product Maximum rotation rate
3000 RPM
Product Shaft compatibility
RDE/RRDE Precision Shaft for MSR Rotator (AFE6MB), RDE/RRDE Shaft for MSR Rotator (AFE6M), RDE/RRDE Shaft for WaveVortex 10 Rotator
Product Rotating electrode type
Fixed Disk Tip
Product Compatible electrode rotator(s)
ASR Rotator (AFASR), MSR evo Rotator (AFMSR24), MSR Rotator (AFMSRCE), MSRX Rotator (AFMSRX), WaveVortex 10 Rotator (AF01WV10)
General
Product Electrode series
E7R9
Product Thermal stability range
10°C - 25°C
Product Electrode use/application
Rotating Ring-Disk (RRDE)
- Zierdt, T.; Reuter, T.; Müller–Hülstede, J.; Buschermöhle, J.; Schonvogel, D.; Kröner, J.; Schwan, M.; Milow, B.; Wagner, P.; Andreas Friedrich, K. Impact of Aerogel Modification for Fe−N−C Activity and Stability towards Oxygen Reduction Reaction in Phosphoric Acid Electrolyte. ChemSusChem 2025, 18, e202401843.
- Kumar, D.; Gueskine, V.; Khan, Z.; Crispin, R.; Vagin, M. Metal Ion-/Proton-Coupled Electron Transfer (MPCET) on ortho-Quinone. ACS Omega 2024, 9, 38498-38505.
- Wang, Y.; Kumar, A.; Budiyanto, E.; Cheraparambil, H.; Weidenthaler, C.; Tüysüz, H. Boron-Incorporated Cobalt–Nickel Oxide Nanosheets for Electrochemical Oxygen Evolution Reaction. ACS Applied Energy Materials 2024, 7, 3145-3156.
- Xue, F.; Fu, X.; Kang, S.; Sheng, X.; Li, B.; Shen, P.K.; Zhu, J.; Nie, M.; Lu, S.; Lu, W. Mo-Based MXene-Supported Pt Nanoparticles for Highly Durable Oxygen Reduction in Acidic Electrolytes. ACS Appl. Nano Mater. 2024, 7, 6305-6314.
- Sun, W.; Tang, L.; Ge, W.; Fan, Y.; Sheng, X.; Dong, L.; Zhang, W.; Jiang, H.; Li, C. Anionic Surfactant-Modulated Electrode–Electrolyte Interface Promotes H2O2 Electrosynthesis. Advanced Science 2024, 11, 2405474.
- N. Ruggiero, B.; Kun Lu, X.; Lu, B.; E. Deberghes, A.; Nordlund, D.; M. Notestein, J.; C. Seitz, L. Efficient electrosynthesis of hydrogen peroxide in neutral media using boron and nitrogen doped carbon catalysts. J. Mater. Chem. A 2024, 12, 27311-27326.
- Moreira, J.; Bocalon Lima, V.; Athie Goulart, L.; Lanza, M.R.V. Electrosynthesis of hydrogen peroxide using modified gas diffusion electrodes (MGDE) for environmental applications: Quinones and azo compounds employed as redox modifiers. Applied Catalysis B: Environmental 2019, 248, 95-107.
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