flex-X-cell M for CO₂ electrolysis (GDE)

Modular CO₂ electrolysis GDE cell with 25 cm² active area, three-channel configuration, anode options for acidic and alkaline conditions, and configurable cathode current collectors. Typical applications include gas-diffusion electrode and catalyst-layer studies, investigation of catholyte effects, and mass-transport and selectivity studies.

From€3,580

Excluding taxes. Final pricing depends on configuration and quantity.

Typical lead time: 1–3 months

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Lead time depends on component availability and product requirements. It may be shorter when all required components are in stock. Customized products or configurations may take longer. The expected lead time will be confirmed in the quotation.

Configure your cell

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Choose the frame thickness to match the membrane’s thickness in the assembled cell, accounting for any compression or swelling expected during operation.

A membrane frame allows a smaller membrane. Without a membrane frame, a full-size membrane covering the sealing area is required. Final compatibility will be confirmed with the quotation.

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Choose the frame thickness to match the thickness the electrode or porous transport layer should have after compression in the assembled cell. The frame sets the space available for the material and therefore its compression.

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Included components

Components are listed from anode to cathode.

Components below describe the default configuration. Select available alternatives above or contact us about further customization.

  • End plate — Stainless steel end plate including positioning pins, screws, handles, and fluid connectors (default: PP; for 6 × 4 mm (OD × ID) tubing)1
  • Insulation layer with EPDM O-rings
  • Anode current collector / electrode — Ti sheet + welded Ir-MMO Ti mesh3
  • Anolyte compartment — 2.0 mm PP/EPDM flow frame
  • Membrane frame — 100 µm PTFE2
  • Catholyte compartment — 2.0 mm PP/EPDM flow frame
  • Cathode PTL / electrode frame — 200 µm PTFE2
  • Cathode current collector — Stainless steel with serpentine flow field3
  • Insulation layer with EPDM O-rings
  • End plate — Stainless steel end plate including positioning pins, screws, handles, and fluid connectors (default: PP; for 6 × 4 mm (OD × ID) tubing)1

Required separately: Membranes and electrodes are not included unless explicitly included in the selected configuration or added separately to your quotation request.

1 Default fluid connectors; other tubing sizes and materials available on request.

2 Default thickness; other thicknesses available on request.

3 Default material; other materials available on request.

Technical specifications

ParameterSpecification
Active area25 cm²
Cell architecture3 channels
Anode current collector / electrodeConfigurable — default: Ti sheet + welded Ir-MMO Ti mesh
Cathode current collector / electrodeConfigurable — default: Stainless steel with serpentine flow field
Anolyte compartment2.0 mm PP/EPDM flow frame
Catholyte compartment2.0 mm PP/EPDM flow frame
Maximum operating pressureUnpressurized operation; <0.5 bar (gauge)
Maximum operating temperature80 °C
External dimensionsApprox. 145 × 170 × 190 mm (W × D × H)
Electrical connection4 mm banana socket, or bolted cable lug directly to the current collector
Fluid connectorsPP fluid connectors for 6 × 4 mm (OD × ID) tubing (other tubing sizes and PFA/PTFE alternatives on request)
O-ringsEPDM (alternatives on request: FKM, FFKM or FEP-encapsulated)
Wetted materialsPP/EPDM, PTFE, selected current-collector/electrode (default: Ti/Ir-MMO anode and stainless-steel cathode), PP fluid connectors, and selected O-ring materials

Further customization

Additional configurations are available on request, including:

  • Reference electrode integration
  • Integrated thermostat channel for temperature control
  • Alternative fluid connector sizes for other tubing diameters
  • Alternative fluid connector materials: PFA or PTFE
  • Alternative O-ring materials: FKM, FFKM or FEP-encapsulated
  • Custom frame thicknesses and geometries
  • Other materials and coatings on request
  • Alternative flow-field geometries, e.g. parallel-channel or interdigitated
  • Noble-metal coatings for current collectors, e.g. Au or Pt
  • Custom anolyte and catholyte compartment thicknesses on request
Enlarged product images