Spectro-electrochemical flow cell setup (redox.me)

Related products

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  Three Electrode Battery Test Cell – compression controlled (redox.me)

  This cell is designed as high-quality alternative to Swagelok-type constructions for reproducible electrochemical measurements of battery and supercapacitor materials.

  The cell consists of two main elements:

   

  (i) the cell base with micrometre screw and compression spring, which allows precise control of pressure applied to the electrode sandwich; and

  (ii) electrode cartridge where the anode, cathode and reference electrode are located.

   

  The (default) electrode cartridge and plungers are designed for planar electrodes with diameter of 18 mm and total sandwich thickness of 2.5 mm. The diameter of separator shall be at least 2 mm larger than electrode diameter (max. 22 mm). The lock ring secures the separator in the electrode cartridge allowing easy and safe electrodes insertion, while ensuring accurate alignment. The upper and lower electrode plungers are available in various materials: 316L Stainless Steel (default), copper, aluminum, nickel etc. The pin-type reference electrode is installed from the side of the electrode cartridge. Thanks to sharp edged hole at the end of the pin the reference electrode (Li/Na/K etc.) can be easily punched from the metal foil and directly loaded into cell. The magnetic mount facilitates rapid assembly of the cartridge in the cell base. The force applied to the electrodes can reach up to 90N and is adjusted with the micrometer control knob. For 2-electrode measurements, the reference electrode feedthrough hole can be closed with the reference electrode punch.

  The cell elements are constructed with materials that are inert to the sample (Stainless steel and PEEK). It well fits aqueous (FKM and EPDM O-Rings) and organic solvent (FFKM O-Rings) electrolyte requirements. Good electrical contact is ensured by gold plated pins. The construction is gas-tight and can be effortlessly assembled in the glove box, reducing possible human error to minimum.

   

  Application note:
  This cell can be used for all common battery measurements, such as galvanostatic cycling, cyclic voltammetry or electrochemical impedance spectroscopy. Both liquid and solid-state or gel-polymer electrolytes can be studied. Additionally, properties and performance of supercapacitor materials can be investigated. Various materials can be examined, including typical Li-ion electrodes (graphite, NMC, LTO etc.) and other chemistries – sodium, magnesium, potassium etc. It can also be applied to measure the ionic conductivity of separators and electrolytes. Owing to the micrometer control knob, the relationship between the initial pressure applied to the cell and the performance of solid-state electrolytes or metal plating process (anode-free systems) can be studied.

   

  The above graph shows relation of pressure applied to electrode stack and distance travelled from the point of contact. The point of contact can be determined by checking OCV (see manual video) or by calculation. To calculate the point of contact, subtract electrode stack thickness from 4 mm. For example, for the 0.9 mm stack, the point of contact (i.e. reading on micrometer screw) will be 4 mm – 0.9 mm = 3.1 mm. Therefore, you should set micrometer screw to 3.1 mm and measure distance/pressure relation from this point.

   

  Specification:
  recommended electrode diameter: 18 mm (other options: 12 mm, 15 mm, 16 mm)
  recommended minimum separator diameter: electrode diameter + 2 mm (max. 22 mm)
  maximum electrode sandwich thickness: 2.5 mm
  spring rate: 10.86 N/mm
  maximum spring load: 90 N
  operating temperature: -40°C – 80°C (default)

   

  Intrastat data:
  HS Code: 90309000
  Country of Origin: Sweden
  NET weight: 400g

   

  Product includes:
  1 x cell base
  1 x compression control unit
  1 x Three-Electrode Cartridge
  1 x reference electrode punch
  1 x upper plunger (Stainless Steel)
  1 x lower plunger (Stainless Steel)
  1 x separator locking ring
  1 x gold plated piston
  1 x compression spring
  2 x gold plated pin contact
  1 x set of O-rings
  1 x set of 3 cable adapters 1mm to 4mm banana plug
  1 x electrode plunger removal tool

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  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

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• 

  STK Starting kit

  Starting kit STK.S

  Set of twenty electrochemical sensors with a simple connector to find the best one to fit your application.

  Starting kit is the set of twenty different electrochemical sensors to find the best one to fit your application. Starting kit contains 10 types of electrochemical sensors (2 sensors of each type), simple sensors connector and sensors box with numbered positions and silica gel.

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• 

  Standard electrochemical cell setup (redox.me)

  This is a stationary solution standard electrochemical (electrolytic) 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 sample holder) and

  c) free-standing membrane (using the basic sample holder).

   

  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. 

  The cell elements are constructed with materials that are inert to the sample (glass and PEEK). It well fits aqueous (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 jacketed model is available here. 

   

  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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