In-Situ Infrared Spectroelectrochemical Cell (External Reflection, H-Type, Micrometer)

In external-reflection (IRRAS) mode the catalyst is loaded on a Ø10 mm glassy carbon electrode, which is pressed towards the infrared crystal; the beam passes through the thin electrolyte layer between crystal and electrode and reflects from the electrode surface.

A digital micrometer integrated into the electrode precisely adjusts the electrode–crystal distance, controlling the thin-layer thickness and the reflected signal intensity.

The two-chamber H-type body is separated by a membrane, with gas inlet/outlet ports in cathode and anode compartments.

Key Features

• External reflection layout, Ø10 mm glassy carbon working electrode and digital micrometer included
• Thin-layer thickness adjusted by micrometer
• Two H-type compartments, replaceable membrane, gas inlet/outlet
• Graphite counter and Ag/AgCl reference electrode included
• Volume < 20 ml

Technical Specifications

The cell is used with a variable-angle reflection optical stage (separate product). Please state your FTIR spectrometer brand and model when ordering.

Dimensions, channel sizes and volume can be customised on request; please state special requirements in your quotation request.

Applications

• In-situ FTIR of powder catalysts on glassy carbon
• Following solution species and products in the thin layer
• Mechanistic studies in CO₂RR, ORR and organic electrochemistry