PECF H-Cell 2x1.5 mL - Photo-Electrochemical Flow H-Cell
This is a horizontally mounted, double compartment Photo-Electrochemical Flow H-Cell used to simultaneously investigate thin film photo-anode and photo-cathode. 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. This allows solutions flow and evacuation of reaction products. Chambers are separated with an ion-exchange membrane (e.g. DuPont’s Nafion® membrane), so the electrochemial products appearing at photo-anode and cathode do not affect the opposite electrode.
This cell has been designed to investigate performance of a thin film photo-anode and/or photo-cathode (e.g. nanocrystalline material or conducting polymer) deposited on a rigid or flexible transparent substrate (typically fused quartz glass). The thin film photo-cathode (counter electrode) deposited on a rigid or flexible substrate is mounted in the second chamber. Alternatively, a metal wire counter electrode may serve as a cathode. One or two classical reference electrodes are mounted in flow chambers. The cell should be connected with two external electrolyte reservoirs to circulate the electrolytes using peristaltic pumps. These reservoirs may be equipped with electrodes (e.g. pH meter probes) and the exhaust gases may be supplied to gas analysis (e.g. Gas Chromatography). A gas purging (via mass flow controller) and ice cooling may also be applied. Typical applications include: basic photochemistry, photolytic water splitting, photoinduced charge separation, photocorrosion and CO2 reduction. For troubleshooting instruction see the redox.me blog post.
nominal exposure area: 1 cm2
flow chamber volume: 2x1.5 mL
electrode plug diameter: 6 mm
recommended substrate size: 25 mm x 25 mm
maximum substrate thickness: 4 mm
maximum membrane thickness: 4 mm
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