Raman Electrochemical Flow Cell, active area: 3.5 cm2, volume: 4.5 mL (redox.me)
This cell combines two classical analytical techniques such as electrochemistry and Raman spectroscopy, to obtain in-situ chemical information about the reactions taking place during an electrochemical experiment. It consists mainly of three elements: (i) sample holder with Tantalum (formerly Copper) foil serving as an electric contact to working electrode surface, (ii) chamber in which reference and counter electrodes are installed together with electrolyte inlet and outlet and (iii) lid which seals the cell and holds the Sapphire window. The sample consisting of a thin film of electrochemically active material deposited on a rigid or flexible substrate (working electrode) is loaded from the bottom via magnetic or screw mount. The counter or/and reference electrodes are mounted in a top casing (either 2-, or 3-electrode setup. The oval counter electrode made of e.g. Platinum wire assures uniform distribution of the field lines along the path to working electrode. During an experiment Raman laser is focused onto the surface of a thin film working electrode through a transparent Sapphire window and thin layer of electrolyte (total optical path of 3.25 mm). The electrolyte thickness of 2.25 mm ensures free diffusion of ions (e.g. protons) and its counter ions.
The electrode adapter for installing 6 mm dia. electrodes inside Raman ECFC is available here. It enables using disk electrode, plug with clip or any other rod-shape electrode (e.g. graphite rod) or current collector (e.g. metal mesh, graphite coated metal mesh, metal foil, graphite coated metal foil, metal foam, carbon woven and non-woven fabrics, carbon paper, etc.) as working electrode instead of a flat electrode in default Raman ECFC configuration.
The screw mount variant of Raman ECFC can be converted into GDE Raman ECFC by using Gas Compartment. This conversion allows installation of Gas Diffusion Electrodes as working electrode.
The cell elements are constructed with materials that are inert to the sample (PEEK, Fluorocarbons). It well fits aqueous (FKM O-Rings) and organic solvent (FFKM O-Rings) electrolyte requirements. The construction is gas-tight and can be used when the removal and exclusion of contaminants such as oxygen and water is required by bubbling of an inert gas through the electrolyte (in an external reservoir).
Application note:
This cell can be used to track kinetic phenomena such as the near-surface proton concentration changes during oxidation and reduction reaction at working electrode. It can be also used to identify materials such as carbon, metal oxides, polymers and electrolytes, and to determine their structure and distribution. Various metals are suitable for this cell as auxiliary electrode including Platinum, Gold and Silver.
Specification:
nominal exposure area: 3.5 cm2
electrolyte volume: 4.5 mL
optical path (including Sapphire window): 3.25 mm
electrode plug diameter: 6 mm
Intrastat data:
HS Code: 90275000
Country of Origin: Sweden
NET weight: 200 g
Product includes:
1 x chamber
1 x Reference electrode (Ag/AgCl, or Ag/Ag+), 30mm
1 x Metal wire auxiliary electrode – ST 0.6/150 mm, Platinum
1 x Sapphire window – 0054PSPCM
1 x lid
1 x WE Tantalum contact
1 x sample holder
1 x plug – 0005CPEMA
Select configuration
Electrolyte type: water-based / organic electrolyte
Mount type: magnetic / screw
Operating video manual
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The flow cell is suitable for sensors of type AC1, AC2, CC1, CC2 and CC3.
The Screen printed sensor is inserted into the slit of cell and tightened by closing of the door. The cell ensures the wall-jet flow around the working electrode and it is optimised so that no air bubbles cumulate in the cell. The cell contains also the contact and output cable.
With the sensors enclosed in a flow cell, it is possible to measure semi-automatically or automatically using a pump or liquid switch for sample supply. Under such conditions, maximum measurement reproducibility is ensured.
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Diameter: 3 mm
Wave lenght range: 350 – 2000 nm- Standard: 620 – 630 nm
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a) rod/disc (6 mm dia.),
b) thin film deposited on a flat substrate (using a wire clip) and
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The working, counter, and reference electrodes are mounted in a top casing either in 2-, or 3-electrode setup. The cell elements are constructed with materials that are inert to the sample (glass and PEEK). It well fits aqueous (FKM/EPDM O-Rings) and organic solvent (FFKM O-Rings) electrolyte requirements. The construction is gas-tight and can be used when the removal and exclusion of contaminants such as oxygen and water is required by bubbling of an inert gas through the electrolyte. The cell chamber is available in several material variants here (glass, PTFE, PEEK)
Application note:
The reference electrode tip should be placed at the level of working electrode center. This will ensure a low potential drop throughout the electrolyte solution for low-current experiment. Various auxiliary electrodes are suitable for this cell including metal wire and metal foil electrodes as well as graphite rod. The bubbling of gas through the solution must be stopped prior to experiment.Specification:
maximum electrolyte volume: 50 mL
electrode plug diameter: 6 mm
number of electrode slots: 3Intrastat data:
HS Code: 90309000
Country of Origin: Sweden
NET weight: 200 gSetup includes:
Item Qty B-A-BEC-50 B-O-BEC-50 BEC 50 mL – Basic Electrochemical Cell 1 C-A-BEC-50 C-O-BEC-50 Metal wire auxiliary electrode – 50HX15 0.6/250 mm, platinum (99,9%), 1 mm dia. gold plated pin 1 E-A-50HX15_Pt-1mm E-O-50HX15_Pt-1mm Silver / Silver Chloride Reference Electrode – Ag/AgCl 70 mm 1 E-Ag/AgCl_70 Non-aqueous Silver / Silver Ion Reference Electrode – Ag/Ag+ 70 mm 1 E-Ag/Ag+_70 Working disk electrode – 2 mm dia., PEEK BODY 6 mm dia. – 70 mm, glassy carbon 1 E-A-DISK_GC-70 E-O-DISK_GC-70 10 pcs of Tantalum wire clip with septum plug 0.6 mm dia., 60 mm long 1 E-A-Ta_CLIP-0.6/60-10p E-O-Ta_CLIP-0.6/60-10p -
Spectro-electrochemical flow cell setup (redox.me)
Read moreThis is a horizontally mounted, multi-purpose spectroelectrochemical cell designed to be used with standard UV-Vis or IR spectrometers. It enables obtaining electrochemical and spectroscopic information from liquid sample or thin films in systems where variations in applied potential induce changes in observed spectra. It consists of a polyether ether ketone (PEEK) flow chamber equipped with a magnetic or screw mount sample holder, screw mount quartz window holder and two different mini tripods. It well fits aqueous (FKM O-Rings) and organic solvent (FFKM O-Rings) electrolyte requirements.
The cell is meant to be used with a standard reference electrode having 6 mm in diameter and a counter electrode either in the form of a rod or helix with 6 mm in diameter and 15 mm active length.
Application note:
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nominal exposure area: 1 cm2 (other values on request)
optical path length (electrolyte thickness): 12 mm
flow chamber volume: 1.75 mL
maximum substrate thickness: 4 mm
electrode plug diameter: 6 mm
minimum substrate size: 17 mm x 25 mm
recommended substrate size: 25 mm x 25 mmIntrastat data:
HS Code: 90275000
Country of Origin: Sweden
NET weight: 300 gSetup includes:
1 x Magnetic Mount Spectro-Electrochemical Flow Cell – MM spectro-EFC 1.75 mL (or Spectro-Electrochemical Flow Cell – spectro-EFC 1.75 mL)
1 x Metal Wire Auxiliary Electrode – 35HX15 0.6/235 mm (Platinum)
1 x Reference electrode (Ag/AgCl, or Ag/Ag+) -
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