This 3H-type photoelectrochemical cell with single quartz window adapts the two-compartment membrane setup to light-driven photoelectrodes. The cathode and anode compartments are separated by an ion exchange membrane. This keeps products formed at one electrode from crossing to the other electrode and reacting again, and lets you control the electrolyte, pH and gas atmosphere of each compartment independently. The quartz light window has a light transmittance above 95% (manufacturer data). It is held by a locking ring that keeps the seal while allowing the quartz glass to be replaced quickly.
The reference electrode sits in a separate third compartment connected to the working compartment through a Luggin capillary with a tip opening below 0.2 mm (manufacturer data). Bringing the tip close to the working electrode reduces the ohmic (iR) error in the measured potential; do not place the tip closer than about twice the capillary diameter. Agar can be added to the capillary to slow electrolyte exchange. The reference compartment is closed with an internally threaded cap. Keep it closed during measurement; otherwise liquid flows between compartments by the communicating-vessels effect. The flanges of the two compartments are joined with a chain clamp; opening the clamp lets you change the membrane in minutes.
In the standard-sealed cell, the lid and electrode feedthroughs are closed with O-rings and sealing screws. An oxygen-free atmosphere is maintained by purging with nitrogen or argon. It is not intended for vacuum or pressure.
The body is made of borosilicate glass 3.3, which has low thermal expansion (3.3 × 10⁻⁶ K⁻¹) and the highest resistance classes against water (HGB 1) and acids (S 1). Avoid sudden temperature differences above 120 °C to reduce the risk of breakage.
The single-layer body is a simple, economical choice for routine measurements at room temperature. If temperature control is needed, choose the jacketed version of the same cell.
| Cell type | 3H-type membrane photoelectrochemical cell, standard-sealed |
| Temperature control | None (jacketed version available as a separate product) |
| Body | Borosilicate glass 3.3 |
| Window | 1 quartz window, > 95% transmittance |
| Compartment joint | Flange + chain clamp, membrane supplied by user |
| Luggin capillary | Tip opening < 0.2 mm (manufacturer data) |
| Electrodes | Long type required |
| Volume options | 30 mL, 50 mL, 100 mL, 150 mL, 200 mL, 250 mL |
| Not included | Electrodes and membrane (sold separately) |
A sampling port can optionally be added to the cell body; please mention it in your quotation request.
Electrodes and membranes shown in the photos are for illustration only and are not included in the price. Compatible reference, counter and working electrodes and membranes are available in the Electrodes category of our site.
For volumes, dimensions or port layouts other than those listed, you can request a custom-made quotation through the Quotation Form.
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