Modular PEM Electrolyzer Test Station up to 3 kW (redox.me)

Related products

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  Basic electrochemical cell setup (redox.me)

  This is a stationary solution basic electrochemical cell for measurements of electrodes in a form of:

  a) rod/disc (6 mm dia.),

  b) thin film deposited on a flat substrate (using a wire clip) and

  c) membrane (using a wire clip).

   

  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: 3

   

  Intrastat data:
  HS Code: 90309000
  Country of Origin: Sweden
  NET weight: 200 g

   

  Setup 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

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• 

  Silver / Silver Chloride Refillable Reference Electrode – 6 mm dia. (redox.me)

  It is a compact refillable Ag/AgCl reference electrode equipped with ceramic frit molten into the glass body. This electrode outperforms competing products in terms of mechanical stability, voltage stability and lifetime. In general, the reference electrode is composed of a system of phases, which retain an essentially constant composition, and therefore provides a stable potential by which the working electrode potential can be monitored. The phases present in reference electrodes undergo reversible redox processes at a very high rate, enabling them to rapidly adjust to changes in the solution’s ionic activity, but leaving them sensitive to the passage of large current densities. 

   

  Application note
  This electrode is commonly used with aqueous acidic electrolytes, but due to the low resistance of the frit it can be used with standard non-aqueous electrolytes, as well. The reference electrode should be stored with the rubber plug applied on the tip. Please see the full instruction here. Keeping in the solution may shorten its lifetime (the electrode operates well as long as there is at least ¼ of the solution in the electrode tube). Before use rinse it with deionized water. If air bubbles are present around the porous frit, flick the tip several times to remove them. For cleaning use detergent (dish washing detergent with water), alcohols or acetone and rinse it with deionized water at the end. To re-fill the electrode please follow this article. 

   

  Specification
  effective length: 30 mm or 70 mm
  tube diameter: 6 mm
  filling solution: 3M KCl
  potential stability: <5 mV
  frit resistance: 2-10 kohm at RT
  operating temperature: 0-100 deg C
  potential vs SHE at 25 °C: 0.207 V

   

  Intrastat data
  HS Code: 90278930
  Country of Origin: Sweden
  NET weight: 100g

   

  Product includes
  1 Ag/AgCl refillable reference electrode
  1 O-Ring
  1 glass tube for storing purposes

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• 

  Sample Holder 25 mm x 25 mm (redox.me)

  The sample holder (known also as flat specimen holder) is used for holding flat, circular or square/rectangular samples. It enables contacting the sample from the front (e.g. ITO/FTO glass, Monolayer Graphene on SiC, or Boron-Doped Diamond thin film on various substrates) and from the back (e.g. metal specimen, Glassy Carbon plate, Boron-Doped Diamond plate). The default nominal aperture is 1cm², but other value can be provided on request. The large electrical contact with Tantalum (formerly Copper) foil surface (not being in contact with an electrolyte) ensures optimal current collection by minimizing electrical resistance and unifying current distribution. The rod with electrical connection has a diameter of 6 mm, which makes the sample holder compatible with our voltammetry cells and jacketed cells, as long as it fits in. We may also provide an adapter to install this sample holder in openings larger than 6 mm dia.

   

  The sample holder elements are constructed with materials that are inert to the electrochemical system (PEEK, Fluorocarbons). It well fits aqueous (FKM/EPDM O-Rings) and organic solvent (FFKM O-Rings) electrolyte requirements. The construction is well sealed which prevents the electrolyte to leak inside.

   

  Application note
  The sample holder is used largely for corrosion studies. It can be installed in a beaker type cell as well as in testing environments such as open water reservoirs, cans, tanks etc. It can also be used wherever it is necessary to make an electrode using a thin layer of an active material deposited on a flat substrate (conducting or insulating).

   

  Specification
  nominal aperture range: 0.008 cm² (1 mm dia.) – 4.155 cm² (23 mm dia.)
  minimum aperture: 0.008 cm² (1 mm dia.)
  maximum aperture: 4.9 cm² (23 mm dia.)
  electrical connection diameter (rod): 6 mm
  minimum substrate size:

  nominal aperture	minimum substrate size
  0.008 cm2 (1 mm dia.)	10 x 10 mm2 (square) or 12 mm dia. (circular).
  0.196 cm2 (5 mm dia.)	7 x 7 mm2 (square) or 10 mm dia. (circular).
  0.283 cm2 (6 mm dia.)	8 x 8 mm2 (square) or 11 mm dia. (circular).
  0.385 cm2 (7 mm dia.)	9 x 9 mm2 (square) or 12 mm dia. (circular).
  1 cm2 (11.3 mm dia.)	13 x 13 mm2 (square) or 16 mm dia. (circular).
  1.76 cm2 (15 mm dia.)	17 x 17 mm2 (square) or 20 mm dia. (circular).
  3 cm2 (19.5 mm dia.)	22 x 22 mm2 (square) or 24 mm dia. (circular).
  3.5 cm2 (21 mm dia.)	23 x 23 mm2 (square) or 25 mm dia. (circular).
  4.155 cm2 (23 mm dia.)	25 x 25 mm2 (square only)

   

  maximum substrate size: 25 x 25 mm²
  maximum sample thickness: 4 mm
  contact type: front or back

   

  Intrastat data
  HS Code: 90309000
  Country of Origin: Sweden
  NET weight: 100 g

   

  Product includes
  1 x chamber
  1 x lid
  1 x contact (Tantalum foil)
  1 x rod with electrical connection

   

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• 

  Basic Sample Holder – metal contact, 4 mm max. thickness (redox.me)

  Basic Sample Holder with a metal contact works as an electrical conductor between an electrode material (free-standing or deposited on a substrate) and an external circuit. This holder consists of PEEK body, pure Tantalum, Stainless Steel 316L, Titanium, Copper or Nickel metal electrical contact, and PEEK screw to fix the electrode. It is compatible with most of inorganic and organic based plates, free-standing membranes or thin films deposited on flexible and rigid substrates. A maximum thickness of the sample is 4 mm. Tantalum is known to be inert to practically all organic and inorganic compounds. Tantalum’s corrosion resistance is very similar to that of glass, as both are unsuitable for use in hydrofluoric acid and strong hot alkali applications. Therefore, in those cases, we recommend the other wire contact variant.  The metal contact can be fully immersed in the electrolyte. 

   

  Application note
  Generally, the electrode is fabricated by fixing the electrochemical active sample into the holder using a screw. Such electrode is immersed in the ion-conducting solution as a working electrode or counter electrode. An electric current is passed between the working electrode and the counter electrode for a certain amount of time. Metal wire contact is permanently installed in the PEEK body. The holder is designed to be used multiple times. The holder should be cleaned prior to the installation of electrode material.

   

  Specification
  holder body material: PEEK
  rod diameter: 6 mm
  contact material: Ta, SS 316L, Ti, Cu or Ni
  contact wire diameter: 0.6 mm
  contact wire total length: 110 mm
  holder length: 70 mm
  maximum sample thickness: 4 mm

   

  Intrastat data
  HS Code: 90309000
  Country of Origin: Sweden
  NET weight: 100 g

   

  Product includes
  1 x Basic Sample Holder
  1 x PEEK M3 screw
  1 O-Ring (FKM for aqueous or FFKM for organic electrolytes)

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