H-type Membrane Cell, unsealed

Open-access membrane-separated electrochemistry

The H-Type Membrane Cell (unsealed) is a dual-compartment electrochemical reactor designed to physically separate anodic and cathodic reactions while maintaining ionic conductivity through a replaceable ion-exchange membrane. Two borosilicate glass chambers are joined at a central membrane interface, allowing ions (e.g., H⁺, OH⁻, supporting electrolyte ions) to migrate to maintain charge balance, while limiting product crossover between half-cells. This architecture is widely used when the two half-reactions require different electrolytes, catalysts, pH conditions, or product collection workflows.

How it works

In typical three-electrode operation, the working and reference electrodes are placed in the same compartment to minimise uncompensated resistance (iR drop), while the counter electrode is housed in the opposite chamber. The membrane (user-selectable: cation-exchange, anion-exchange, bipolar, porous separator) is clamped between the chambers and can be replaced quickly for comparative testing.

Key features and specifications

• Material set: borosilicate glass body with chemically resistant polymer sealing/fixtures (typ. PTFE/PP components, elastomer O-rings)
• Configurable volumes: 20 mL to 250 mL per chamber options to match screening vs extended testing
• Membrane flexibility: supports common research membranes (e.g., Nafion™-type PEMs, AEMs, BPMs) and separators
• Open (unsealed) format: rapid electrode swaps, easy sampling, quick electrolyte changes, and straightforward cleaning
  
  

Typical applications

• CO₂ reduction (CO2RR) and selective electrosynthesis where product crossover must be minimised
• Water electrolysis method development and catalyst screening
• Membrane performance studies: crossover, selectivity, resistance/conductivity comparisons
• Corrosion, redox mediator studies, and educational demonstrations
  
  

Why configure it through ScienceGears

ScienceGears supports AU & NZ researchers with practical configuration help—matching chamber volume, membrane type, electrodes, and accessories—and integrating the cell into your workflow with potentiostats, EIS-capable systems, electrodes, and related electrochemical cell options (including sealed and jacketed variants for controlled atmosphere or temperature work).

For further information or to discuss your specific research requirements, please contact us.