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E7R9 Series Fixed-Disk ThinGap Rotating Ring-Disk Electrode, Glassy Carbon (GC) Disk, Platinum (Pt) Ring, PTFE separator/shroud
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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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.
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.
Working Electrodes
General
Electrode series
Thermal stability range
10°C - 25°C
Electrode use/application
Rotating Ring-Disk (RRDE)
Rotating Electrodes
Maximum rotation rate
Shaft compatibility
Rotating electrode type
Compatible electrode rotator(s)
Electrode Tips
Disk Electrodes
Disk electrode style
Disk material
Disk crystal lattice
polycrystalline
Disk material purity
100%
Disk finish
Mirror Polish
Disk diameter
Disk type
Disk series compatibility
None (Fixed Disk)
Ring Electrodes
Ring material
Ring crystal lattice
Polycrystalline
Ring material purity
99.99%
Ring finish
Mirror Polish
Ring outer diameter
7.92 mm
Ring inner diameter
6.25 mm
Ring thickness
0.835 mm
Ring disk gap
0.32 mm
Ring disk separator material
Collection efficiency
37%
When possible, we add published articles, theses and dissertations, and books to our references library. When we know this product has been used, we will include it in this list below. If you have a reference where our product was used and it's not in this list, please contact us with the details and we will add it.
- Zierdt et al. Impact of Aerogel Modification for Fe−N−C Activity and Stability towards Oxygen Reduction Reaction in Phosphoric Acid Electrolyte. ChemSusChem, 2025, 18, e202401843.
- N. Ruggiero et al. Efficient electrosynthesis of hydrogen peroxide in neutral media using boron and nitrogen doped carbon catalysts. Journal of Materials Chemistry A, 2025, 12, 27311-27326.
- Sun et al. Anionic Surfactant-Modulated Electrode–Electrolyte Interface Promotes H2O2 Electrosynthesis. Advanced Science, 2025, 11, 2405474.
- Kumar et al. Metal Ion-/Proton-Coupled Electron Transfer (MPCET) on ortho-Quinone. ACS Omega, 2024, 9, 38498-38505.
- Wang et al. Boron-Incorporated Cobalt–Nickel Oxide Nanosheets for Electrochemical Oxygen Evolution Reaction. ACS Applied Energy Materials, 2024, 7, 3145-3156.
- Xue et al. Mo-Based MXene-Supported Pt Nanoparticles for Highly Durable Oxygen Reduction in Acidic Electrolytes. ACS Applied Nano Materials, 2024, 7, 6305-6314.
- Moreira et al. 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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