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E7R8 ThinGap RRDEs

Products

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MAXIMUM ROTATION RATE: 3000 RPM -- Never exceed maximum rotation rate when working with rotating electrodes.

This series of RDE tips may be used with the WaveVortex 10, MSR, and ASR electrode rotators.

These Fixed-Disk RRDE tips feature a sub-millimeter gap between the disk and ring, making them well-suited for studying short-lived intermediates that must transit the ring-disk gap as quickly as possible.  The E7R8 RRDE tips are also designed with the same thread connections as our E5 and E6 Series RDE/RRDE tips, allowing them to be used interchangeably with the same shaft.

  • Ring-Disk Gap = 180 μm; Collection Efficiency = 22%
  • Disk OD = 4.57 mm; Ring OD = 5.38 mm; Ring ID = 4.93 mm
  • Fixed-Disk RRDE tip; 15.0 mm OD PTFE shroud

See "Description" tab below for additional precautions and information.

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# Description Price in USD
Platinum Ring RRDE Tips
AFE7R8PTPT

Platinum Disk, Platinum Ring
15.0 mm PTFE shroud

Gold Ring RRDE Tips
AFE7R8AUAU

Gold Disk, Gold Ring
15.0 mm PTFE shroud

Shafts
AFE6MB

RDE/RRDE Shaft for MSR Rotators
15.0 mm OD PEEK shroud, stainless steel rod

AFE6A

RDE/RRDE Shaft for ASR Rotators
15.0 mm OD PEEK shroud, stainless steel rod

MAXIMUM ROTATION RATE: 3000 RPM — Never exceed maximum rotation rate when working with rotating electrodes.

TEMPERATURE RANGE: 10°C – 25°C — Electrode damage may occur at temperatures beyond recommended range.

This series of RDE tips may be used with the WaveVortex 10, MSR, and ASR electrode rotators.

These Fixed-Disk RRDE tips feature a sub-millimeter gap between the disk and ring, making them well-suited for studying short-lived intermediates that must transit the ring-disk gap as quickly as possible.  The E7R8 RRDE tips are also designed with the same thread connections as our E5 and E6 Series RDE/RRDE tips, allowing them to be used interchangeably with the same shaft.  Each electrode is also individually tested and certified to be leak-free and mirror polished at the time of shipment.

Fabricating an RRDE tip with a glassy carbon disk or ring is difficult due to the fragile nature of the glassy carbon.  In general, slightly larger dimensions are required when working with glassy carbon.  For this reason, all RRDE tips which have a glassy carbon disk or ring are manufactured using the E7R9 Series RRDE tip dimensions.  Other RRDE tips with metal disks and rings are fabricated using the smaller E7R8 Series dimensions.

Compatible shafts include AFE6MBAFE6M, and AFE5M for use with the MSR rotatorAFE6A and AFE5A for use with the ASR rotator, and AFE5F for non-rotating applications.  The E5TQPK Series RDE tips are also compatible with the WaveVortex 10 Electrode Rotator.

Visit our YouTube channel for helpful instructional videos regarding the use and maintenance of this and many other Pine Research products.

All specifications are subject to change without notice.
E7R8 RRDE Tip Specifications

Ring-Disk Gap

180 μm

Disk OD

4.57 mm

Ring ID

4.93 mm

Ring OD

5.38 mm

Shroud OD

15.0 mm

Shroud Material

PTFE

Collection Efficiency

22%

Disk Area

0.1642 cm2

Ring Area

0.0370 cm2

Document # Title

DRK10013

Pine Research Electrode Polishing Guide
click here to download (239 KB download)

DRK10135

Electrode Shrouds Overview
click here to download (177 KB download)

DRK10062

Electrode Compatibility And Application Overview
click here to download (206 KB download)

Utilities

DRK10164

RRDE Collection Efficiency Calculator Worksheet
click here to download (45 KB download)

Material Link

Glassy carbon (GC)

click here to download (82 KB download)

Platinum (Pt)

click here to download (34 KB download)

Gold (Au)

click here to download (148 KB download)

SDS Forms

Click here to view all available SDS Forms