J3 Easy Electrochemistry “EEL” Flow Cell

The J3 “EEL” flow cell uses thin metal films to enhance infrared signals for molecules in the vicinity of the metal film. This makes it an ideal tool for a range of research applications, including surface redox reactions, catalyst evaluation, fuel half-cell research, and various adsorption phenomena. In addition to the dynamic studies that a flow cell enables, the small volume of the EEL cell is advantageous for static experiments where its flow capabilities enable rapid and efficient changing of solutions, reducing experimental time.

Key Features

Chemically-robust construction for ease of cleaning
Robust seal design for long-lasting performance
Small internal volume (<3 mL) for economical use of expensive electrolytes
Compatible with either microgrooved silicon ATR wafers or face-angled crystals

For a complete list of the parts included with the J3, please consult the manual.

Product Variants

Several J3 variants are available. The principal choice for the user is which ATR element holder they would like to use.

Choice of ATR element holder

Two holder options are available, depending on which ATR element the user wishes to use. The ATR elements are sold separately.

Product Number	Product Name	Cell Base Material	ATR Element Holder
162-4832	J3FP	PEEK	FAC
162-4831	J3WP	PEEK	Wafer
162-4833	J3CP	PEEK	FAC and Wafer (both included)

ATR Elements

Product Number	Product Name
160-5552 (Si), 160-5550 (ZnSe), 160-5551 (Ge)	Face-angled crystal (60°) *
162-4814 (2 pk.), 162-4815 (6 pk.) Also available for purchase online.	Si Microgrooved Wafer (35°)
162-4816 (2 pk.), 162-4817 (6 pk.) Also available for purchase online.	Si Microgrooved Wafer (55°)

* 45° face-angled crystals are also available upon request. A different FAC holder is required for 45° crystals.

Electrodes

Note: Every J3 cell comes packaged with one Pt counter electrode (can be substituted for Au on request) and one user-serviceable Ag/AgCl reference electrode.

Product Number	Product Name
162-4849	J3 Pt counter electrode *
162-4774	User-serviceable Ag/AgCl reference electrode

* Au counter electrodes also available on request.

Add-ons

Product Number	Product Name
162-4732	Electroless deposition kit

FAC Holder	Wafer Holder
PIKE Face-Angled Crystals (FACs) have an anti-reflective coating which increases spectral throughput and improves signal to noise. SEIRAS signals are up to twice as strong using the FAC compared to a conventional hemisphere. However, strongly absorbing Si phonon modes impose a low-wavelength cutoff around 1250 cm^-1.	The wafer holder accommodates 500 μm thick microgrooved ATR wafers, an inexpensive alternative to larger ATR crystals. The underside of the wafer is patterned with microprisms to enable excellent optical coupling. The low pathlength minimizes throughput loss from Si phonon modes, allowing access to the complete mid-IR spectral range from 5000 to 400 cm^-1.