Spectro-Electrosynthesis Flow H-Cell

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This is a horizontally mounted, double compartment Spectro-Electrosynthesis Flow H-Cell used for real-time investigation of compounds synthesized via electrochemical reaction (i.e. electrogenerated products). The Cell is compatible with several spectral techniques including UV-Vis (quartz windows), NIR and IR (CaF2 windows) as well as Ultrafast Laser Spectroscopy (CaF2 windows). The main advantages include a short distance between electrodes (no need of supporting electrolyte), excellent yields due to the high-surface-to-volume ratio of the electrodes (high conversion efficiency) and short reaction time.

The cell elements are made of PEEK. It well fits aqueous (EPDM/FKM O-Rings) and organic solvent (FFKM O-Rings) electrolyte requirements. The construction is liquid-tight having two separate chambers, each equipped with electrolyte inlet and outlet. The Working Electrode (WE) compartment is a flow cell with a continuous and efficient electrolyte withdrawal from the WE volume (in case of porous WE) and surrounding. This allows solutions flow and evacuation of reaction products into the detection area. The Counter Electrode (CE) compartment is a static chamber filled up with an electrolyte before an experiment. However, continuous flow of an electrolyte in CE compartment is also possible.


• 1 x WE flow chamber
• 1 x CE chamber
• 1 x window/membrane holder
• 3 x spacer (0.3 mm, 0.5 mm and 1 mm)
• 1 x CE chamber lid
• 1 x WE electrode (customized Rh-plated CE - model 7)
• 1 x CE electrode (customized Rh-plated CE - model 7)
• 1 x set of membranes (customizable)
• 2 x quartz window
• 2 x CaF2 window
• 2 x sapphire window
• 1 x Reference Electrode (Ag/AgCl or Ag/Ag+ 30 mm)
• 1 x table tripod – 0028PHYCM
• 1 x plug
• 1 x set of Nylon screws


• WE flow compartment volume: 1.5 mL
• CE compartment volume: 3 mL
• Electrode plug diameter: 6 mm
• Tubing ID for WE compartment: 3 mm
• Tubing ID for CE compartment: 1 mm
• Standard electrodes: Rhodium plated CE model 7

Customization Options: Different versions for water based or aqueous electrolyte.

Related Applications:

During an experiment, the beam is reflected from the sample surface through a pair of transparent windows installed perpendicularly to the incident light. The total optical path through the electrolyte is around 18 mm. Various window materials are available including JGS3 Quartz (default), Sapphire, CaF2 and Kapton. The Ellipsometry EC cell can be installed on a horizontally or vertically positioned stage of an ellipsometer. It may operate as both stagnant and flow cell. The cell elements are constructed with materials that are inert to the sample (glass and PEEK. It well fits aqueous (FKM/EPDM O-Rings) and organic solvent (FFKM O-Rings) electrolyte requirements. The construction is gas-tight and can be used when the removal and exclusion of contaminants such as oxygen and water is required by bubbling of an inert gas through the electrolyte (in an external reservoir).

Typical applications include real-time monitoring of a) an electrochemical deposition and growth of thin films (organic, inorganic and bio-materials); b) structural changes at the electrode/electrolyte interface for interfacial electrochemistry (e.g., electrocatalysis, corrosion, etching, Li/polymer electrolyte interphase, intercalation of ions). Various metals are suitable for this cell as auxiliary electrode including Platinum, Gold, and Silver. For troubleshooting instruction see the Redox.me blog post.

Recommended Optional Items:

Reference Electrodes (Aqueous or Non-Aqueous)
Working Electrodes
Auxiliary (Counter) Electrodes

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Category: Electroanalytical Chemistry

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