The small-volume H-type photoelectrochemical cell is a membrane glass cell with a single quartz window, working with about 10 mL of electrolyte per compartment. 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 flanges of the two compartments are joined with a chain clamp; opening the clamp lets you change the membrane in minutes. The reference electrode sits in the same compartment as the working electrode, which reduces the ohmic (iR) drop in solution. The electrodes plug into socket connections inside the PTFE lid. Gas connections are hose barbs as standard; PEEK quick connectors are available on request. There is no jacketed version; the valve assembly is sold separately.

In the absolutely sealed cell the electrodes plug into socket (jack) connections inside the lid, isolating the system completely from the outside. With valves fitted, the cell can be evacuated (below −100 kPa) or operated under slight pressure (max. 0.5 MPa, manufacturer data). The electrodes are made to fit this cell and must be ordered together with it.

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.

Key Features

10 mL per compartment: low electrolyte and catalyst consumption
Single quartz window, quick change with locking ring
Replaceable membrane (supplied by user)
Absolute sealing with socket-connected electrodes
Low dead volume thanks to raised bottom

Technical Specifications

Cell type	Small-volume H-type photoelectrochemical cell
Volume	10 mL per compartment
Body	Borosilicate glass 3.3
Window	1 quartz window, > 95% transmittance
Type options	Single-Layer, Single-Layer with Sampling Port
Not included	Electrodes and membrane (sold separately)

Valves are not included in the price. The valve kit for gas purging and vacuum is offered as a separate product (LM-EC-CELL-VALVE) and is ordered together with the cell.

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.