Replaceable-Membrane Electrolytic Cell Double-Layer ATOMFAIR®

3H Replaceable-Membrane Electrolytic Cell, Relative Sealing, Double-Layer | ATOMFAIR

Product Type: Electrochemical cell

Research-grade laboratory product

Product Overview

The ATOMFAIR® Double-Layer is constructed from high-borosilicate glass and designed as a semi-sealed, three-compartment system for three-electrode applications. The reference electrode is separated from the working electrode and connected via a Luggin capillary with an aperture of less than 0.2mm at the tip, effectively reducing uncompensated resistance (iR drop). The Luggin capillary can be filled with a gel to reduce electrolyte flow rate. The reference electrode chamber features internal threaded sealing – proper sealing is essential to prevent electrolyte leakage due to the siphon effect. The cathode and anode chambers are isolated by an ion-exchange membrane with chain-sealed connections for easy membrane replacement. The cell features a 360° rotatable PTFE inner core for precise electrode alignment (typically parallel to the membrane). A sub-surface sparger is included for gas purging, with different sparger shapes available for different experimental requirements. The single-layer body features an elevated floor design that effectively eliminates solution hiding effects. The double-layer version incorporates a thermostatic water bath jacket for precise temperature control. Extended-length electrodes are required and must be ordered separately. A sampling port is available as an optional add-on.

Performance Features

Luggin capillary design: Separates reference electrode from working electrode with <0.2mm tip aperture, effectively reducing iR drop for accurate measurements.
Gel-fillable capillary: Allows filling with gel to reduce electrolyte flow rate for enhanced stability.
Internal threaded reference sealing: Prevents electrolyte leakage due to siphon effect when properly sealed.
Two-compartment membrane separation: Isolates cathode and anode with ion-exchange membrane for selective ion transport studies.
360° rotatable PTFE core: Enables precise electrode alignment parallel to the membrane for optimal configuration.
Integrated water bath jacket: Double-layer configuration enables precise thermal regulation for temperature-dependent electrochemical studies.

Technical Specifications

Parameter	Specification / Available Values
Product Family	3H Replaceable-Membrane Electrolytic Cell, Relative Sealing, Double-Layer
Atomfair Model	AF-C008-010-DBL
Volume	5-10 mL
Atomfair Model	AF-C008-030-DBL
Volume	30 mL
Atomfair Model	AF-C008-050-DBL
Volume	50 mL
Atomfair Model	AF-C008-100-DBL
Volume	100 mL
Atomfair Model	AF-C008-150-DBL
Volume	150 mL
Atomfair Model	AF-C008-200-DBL
Volume	200 mL
Atomfair Model	AF-C008-250-DBL
Volume	250 mL

APPLICATION SCOPE: Membrane-based electrochemistry, CO₂ reduction, nitrogen reduction, fuel cell research, electrosynthesis, corrosion studies, and general three-electrode system applications requiring compartment isolation and temperature control.

PACKAGING: Individual shock-proof packaging with specialized foam lining and reinforced cartons to ensure the glass body remains intact during transportation.

IMPORTANT NOTICE: Ion-exchange membrane not included. Use extended-length electrodes. Ensure reference electrode chamber is properly sealed to prevent siphon leakage. Do not use for absolute sealing and vacuum applications. Verify membrane compatibility before use. Inspect seals before assembly.

LABORATORY PROCUREMENT SUPPORT

For model selection, accessory matching, platform compatibility or configuration confirmation, contact our technical sales team.

E-MAIL: inquiry@atomfair.com

Manufacturer: Atomfair LLC

Brand: ATOMFAIR®

Manufacturer: Atomfair LLC

Brand: ATOMFAIR®

This electrochemical cell requires proper sealing of the reference electrode chamber to prevent siphon-induced electrolyte leakage. Membrane compatibility must be verified prior to use, and the cell is not suitable for absolute sealing or vacuum applications.

Reference Electrode Chamber Sealing: The reference electrode chamber must be properly sealed using the internal threaded mechanism to prevent electrolyte leakage due to the siphon effect.
Ion-Exchange Membrane Compatibility: Verify the ion-exchange membrane compatibility with the intended electrolyte before assembly to avoid chemical degradation or failure.
Extended-Length Electrodes Required: Extended-length electrodes must be used and ordered separately; standard electrodes may not reach the working compartment.
Vacuum Restriction: This semi-sealed cell is not designed for absolute sealing or vacuum applications and should not be used under such conditions.
Thermostatic Water Bath Jacket: The double-layer version includes a water bath jacket that requires connection to a thermostatic circulator for precise temperature regulation.

HowTo

Assemble the cell by installing the ion-exchange membrane and sealing the reference electrode chamber. Connect the electrodes, align them using the PTFE core, and attach the water bath and sparger for temperature control and gas purging.

Required Equipment: Ion-exchange membrane, Extended-length electrodes, Sub-surface sparger, Thermostatic water bath circulator

Inspect seals and glass body
Inspect all seals and the glass body for cracks before assembly.
Verify membrane compatibility
Verify the ion-exchange membrane compatibility with the intended electrolyte.
Install ion-exchange membrane
Install the ion-exchange membrane between the cathode and anode chambers using the chain-sealed connections.
Seal reference electrode chamber
Seal the reference electrode chamber by tightening the internal threaded cap to prevent siphon leakage.
Fill Luggin capillary with gel
Fill the Luggin capillary with a gel to reduce electrolyte flow rate if required.
Install extended-length electrodes
Install extended-length electrodes into the working and counter electrode compartments.
Align electrode with PTFE core
Rotate the PTFE inner core to align the working electrode parallel to the membrane.

FAQ

How does the Luggin capillary design in the ATOMFAIR 3H Replaceable-Membrane Electrolytic Cell reduce uncompensated resistance?

The cell incorporates a Luggin capillary with a tip aperture of less than 0.2 mm that separates the reference electrode from the working electrode, effectively reducing uncompensated resistance (iR drop). Additionally, the capillary can be filled with a gel to further reduce electrolyte flow rate, enhancing measurement stability for accurate three-electrode studies.

What electrode and membrane compatibility requirements apply to the ATOMFAIR double-layer electrolytic cell?

The cell requires extended-length electrodes, which must be ordered separately. An ion-exchange membrane is used to isolate the cathode and anode chambers via chain-sealed connections, but the membrane is not included with the cell. Membrane compatibility must be verified before use, and the cell is not suitable for absolute sealing or vacuum applications.

How does the thermostatic water bath jacket in the double-layer version enable temperature-controlled experiments?

The double-layer configuration includes an integrated water bath jacket that allows precise thermal regulation for temperature-dependent electrochemical studies. This enables researchers to maintain controlled temperatures during experiments, which is critical for applications such as CO₂ reduction, nitrogen reduction, and electrosynthesis. The cell also features a 360° rotatable PTFE inner core for optimal electrode alignment parallel to the membrane.

Assessment

This double-layer three-electrode cell offers precise iR compensation via a Luggin capillary and integrated thermal control, but requires extended-length electrodes and separate membrane procurement, and is not suitable for vacuum or absolute sealing applications.

Positive

Luggin capillary reduces iR drop: The reference electrode is separated via a Luggin capillary with <0.2mm tip aperture, effectively minimizing uncompensated resistance for more accurate three-electrode measurements.
Integrated water bath jacket: The double-layer configuration includes a thermostatic water bath jacket, enabling precise temperature control for temperature-dependent electrochemical studies.

Trade-offs

Extended-length electrodes required: This cell requires extended-length electrodes that are not included and must be ordered separately, adding to initial setup complexity and cost.
Not for vacuum or absolute sealing: The cell is designed as semi-sealed with relative sealing; it is not suitable for absolute sealing or vacuum applications, limiting its use in certain specialized experiments.

Quality Standards & Performance Verification

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.

Shipping & Returns

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).