The Jackfish J4 H-cell helps researchers avoid unintentional redox reactions from occurring by controlling the electrolyte which is in contact with the counter electrode (CE) and working electrode (WE). The electrodes are housed in separate compartments partitioned by a semipermeable membrane so that the electrolyte in each compartment can have a unique composition. Precursors can be selectively introduced into the WE compartment without concern of side reactions at the CE and products from the WE are prevented from participating in further reactions at the CE.

Key Features

• Quartz window provides direct observation of the working electrode surface and also enables the possibility of photochemical experiments
• Included low-profile magnetic stirrer enables studies of mass transport effects
• Multiple ports facilitate the introduction of gases to the cell and accommodate a wide variety of experimental setups

For a complete list of the parts included with the J4, please consult the manual.

Application Note

The Impact of Stirring on the Electrode Microenvironment During eCO2 Reduction (Katharina Trapp)

Product Variants

Two J4 variants are available. The principal choice for the user is the material of the cell base.

Choice of cell base material

The J4 cell base is available in two different material types: PTFE and PEEK.

	PTFE	PEEK
Chemical Robustness	The gold standard in chemical inertness and resistance.	Highly chemically resistant, but lower resistance than PTFE. Incompatible with concentrated nitric and sulfuric acids.
Mechanical Strength	Some care must be taken to avoid damaging the threads of the finely tapped holes for contact screws.	More mechanically robust. The threads are less likely to be damaged during assembly.
Rigidity	Soft material which may deform if dropped.	Rigid, non-deformable material.

ATR Elements

Product Number	Product Name
160-5552 (Si), 160-5550 (ZnSe), 160-5551 (Ge)	Face-angled crystal (60°) *

Electrodes

Product Number	Product Name
162-4768	J2/J4 Pt counter electrode
162-4767	J2/J4 Au counter electrode
162-4774	User-serviceable Ag/AgCl reference electrode

Add-ons

Note: Every J4 cell comes packaged with one top cap purge kit and one magnetic stirrer.

Product Number	Product Name
162-4782	Top cap purge kit
162-4858	J4 magnetic stirrer