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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)

Select configuration

 
Wire metal: tantalum / stainless steel 316L / titanum / copper / nickel
 

 

 

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    Application note
    The disk electrode is immersed in the ion-conducting solution as a working electrode. An electric current is passed between the working electrode and the counter electrode for a certain amount of time. After the experiment, the electrode should be washed several times with ethanol or isopropanol. If the disk electrode was used as a current collector with other electrode material, or when there are visible traces of material absorption, it should be polished down to the mirror surface after the experiment is completed. Store the working disk electrode in the glass tube sealed with an O-ring (all included in the package). Instruction on maintenance is provided on the Electrode Polishing Kit product page. 

     

    Specification

    disk diameter: 2, 3, 4 or 5 mm
    disk length: 1.5 mm for BDD, 3 mm for the rest
    body material: PEEK with PTFE or PEEK sleeve
    body diameter: 6 mm
    body length: 70 mm

     

    Intrastat data
    HS Code: 85451900
    Country of Origin: Sweden
    NET weight: 100 g

     

    Product includes
    1x working disk electrode
    1x O-ring
    1x glass tube

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  • Standard electrochemical cell setup (redox.me)

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    b) thin film deposited on a flat substrate (using a sample holder) 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 has two spare ports for connection of e.g. thermometer, Clark electrode, pH meter electrode, or other 6 mm dia. electrode/probe. 

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    Application note
    The reference electrode tip should be placed close to a 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: 100, 150, 200, 250, 350, 500 or 1000 mL
    electrode plug diameter: 6 mm
    number of electrode ports: 5
    vial material: borosilicate 3.3 glass

     

    Intrastat data:
    HS Code: 90309000
    Country of Origin: Sweden
    NET weight: 200 g (100, 150 mL), 300 g (200, 250, 350 mL), 400 g (500 mL), 600 g (1000 mL)

     

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

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    Application note
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    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
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    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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