Small-Volume 3H Replaceable-Membrane Electrolytic Cell, Single-Layer | ATOMFAIRProduct Type: Electrochemical cell
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For model selection, accessory matching, platform compatibility or configuration confirmation, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
This electrochemical cell requires careful membrane-electrolyte compatibility verification and seal inspection prior to assembly. Extended-length electrodes are mandatory, and gas purging via the sub-surface sparger is available for atmosphere control.
- Membrane Compatibility Verification: Verify membrane compatibility with the intended electrolyte before use to prevent degradation or failure.
- Seal Inspection Requirement: Inspect all O-ring compression seals on PTFE plugs before assembly to ensure leak-free operation.
- Extended-Length Electrode Requirement: Use only extended-length electrodes as standard electrodes will not reach the working compartment.
- Gas Purging Capability: Connect a gas supply to the sub-surface sparger for efficient atmosphere control during gas-dependent experiments.
How does the co-located working and reference electrode configuration minimize uncompensated resistance in small-volume three-electrode cells?
The co-located working and reference electrode configuration minimizes uncompensated resistance (iR drop) by positioning both electrodes in the same compartment, reducing the solution resistance between them. This enables more accurate potential control in high-impedance or small-volume measurements. The ATOMFAIR single-layer cell is specifically designed with this geometry to improve measurement fidelity in three-electrode applications.
What types of ion-exchange membranes are compatible with the chain-sealed system, and how is membrane replacement performed?
The cell accepts standard ion-exchange membranes (e.g., Nafion, Fumasep) that fit the compartment interface; however, the membrane is not included and must be selected based on electrolyte compatibility. Replacement is facilitated by the chain-sealed connections, which allow the membrane to be swapped quickly without degrading the seal. Users should verify membrane compatibility with their electrolyte before assembly to prevent contamination or leakage.
What is the elevated floor design, and how does it eliminate solution hiding effects in small-volume electrolytic cells?
The elevated floor design raises the electrode region above the bottom of the cell, eliminating dead volumes where solution could become stagnant or isolated. This prevents solution hiding effects—where portions of the electrolyte bypass electrode contact—ensuring uniform current distribution and accurate mass transport in small volumes (10 mL per compartment). The design is critical for reproducible electrochemistry in CO₂ reduction, electrosynthesis, and similar applications.
This single-layer small-volume 3H replaceable-membrane electrolytic cell features co-located working and reference electrodes to minimize iR drop, chain-sealed membrane connections for easy replacement, and an elevated floor design to eliminate solution hiding effects. It requires separate purchase of extended-length electrodes and ion-exchange membrane, and the absence of temperature control in this version necessitates the double-layer variant for thermal regulation.
Positive
- Co-located WE/RE reduces iR drop: Working and reference electrodes are positioned in the same compartment, effectively minimizing uncompensated resistance for more accurate three-electrode measurements.
- Chain-sealed membrane replacement: Chain-sealed connections between cathode and anode chambers allow quick and convenient exchange of ion-exchange membranes without compromising the seal integrity of the cell.
Trade-offs
- Extended-length electrodes required: The cell design requires extended-length electrodes, which are not included and must be ordered separately to achieve proper electrode positioning within the compartments.
- Ion-exchange membrane not included: The ion-exchange membrane for compartment separation is not supplied with the cell; users must source a compatible membrane and verify chemical compatibility with the intended electrolyte before use.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).






