E5TQPK ChangeDisk RDE Tip
The E5TQPK Series Rotating Disk Electrode (RDE) tip is a customer favorite. This RDE tip is a high-quality, precision-machined, flexible electrode that is commonly used in electrochemical research. The interchangeable disk (ChangeDisk) features of this RDE tip allows users the flexibility to have one tip with many different disk inserts (sold separately), that can vary in material. For example, with this single tip, users may have glassy carbon, gold, and platinum disk inserts available – reducing the need to purchase fixed versions of each disk material.
Further, working with only a disk insert can be advantageous to users who modify working electrode surfaces in unique ways (annealing, sputtering, complicated preparation steps, etc.), as the 5 mm x 4 mm OD disk insert can be used in smaller and more confined spaces. PEEK based electrodes enable use at higher temperature, up to 80°C, perfect for users who perform thermal cycling type experiments.
These RDE tips feature a 15.0 mm OD PEEK shroud and are designed with the same thread connections as our standard 15.0 mm OD RRDE tips, making it easy to switch between RDE and RRDE configurations using the same rotator shaft. Designed for experiments like fuel cell electrocatalyst screening, these RDE tips provide the platform you need to study catalyst behavior over a range of temperatures.
E5TQPK Series RDE tips feature removable disk inserts (sold separately). Standard metal disk inserts offered by Pine Research are 5.0 mm OD x 4.0 mm thick and are fabricated from gold, platinum, or glassy carbon; however, disks may be made from other materials or dimensions upon request. A toolkit (sold separately) and polishing kit (sold separately) are also required to change and polish the metal disk insert between experiments.
Unlike some Fixed-Disk electrodes with a PEEK shroud, the E5TQPK Series RDE tips use a PTFE U-cup that surrounds the disk insert and sits between the disk and PEEK shroud. The PTFE U-cup provides a hydrophobic barrier around the disk to enable easier thin film deposition.