CNB-12-EC-GDE3
Gas Diffusion Electrochemical Cell (Three-Electrode System), Model: EC-GDE3 / EC-GDE4
EC-GDE3 / EC-GDE4 Gas Diffusion Electrochemical Cell
Three-chamber PEEK gas diffusion electrochemical cells featuring an optical observation window for direct process viewing, with 7 mm or 3 mm electrode spacing.
Product Overview
The EC-GDE3 / EC-GDE4 gas diffusion electrochemical flow cells are designed for advanced catalyst evaluation and moderate- to high-current-density testing. Their three-chamber, three-electrode configuration enables direct gas delivery to a sheet-type gas diffusion electrode together with controlled electrolyte circulation. A high-purity quartz observation window provides direct visualization of flooding, bubble formation, and salt deposition during operation.
Key Features
Visualized Flow-Cell Platform
The high-purity quartz optical window enables direct observation of the reaction chamber during gas-diffusion-electrode testing.
Selectable Electrode Gap
Available with a 7 mm gap for general research or a shortened 3 mm gap for moderate-to-high-current-density measurements.
Chemically Resistant PEEK Body
The PEEK cell body provides strong chemical resistance for demanding electrochemical reaction conditions.
Typical Applications
Gas-Diffusion Electrode Studies
Evaluating sheet-type GDEs under controlled gas and electrolyte-flow conditions.
CO₂ Electroreduction Research
Investigating catalytic activity, product selectivity and high-current-density performance.
Visualized Electrocatalyst Testing
Observing flooding, bubble accumulation and salt deposition during electrolysis.
Technical Specifications
| Item | Specification |
|---|---|
| Chamber structure | Three-chamber |
| Electrode system | Three-electrode |
| Anode-cathode gap | 7 mm (101017-1); 3 mm (101017-1.2) |
| Active area | 1 cm² (10 x 10 mm, customizable) |
| Working electrode | Sheet-type gas diffusion electrode |
| Reference electrode | Rod-type electrode |
| Counter electrode | Sheet-type electrode |
| Cell body material | PEEK |
| Optical window material | Quartz |
Instrument Compatibility
Gas and Electrolyte Flow Compatibility
Compatible with regulated laboratory gas supplies and electrolyte-circulation systems equipped with mass flow controllers, gas flow meters and peristaltic pumps.
Potentiostat Compatibility
Compatible with commercial potentiostats supporting three-electrode measurements, including CH Instruments (CHI660E, CHI760E, CHI1140C), Bio-Logic (VMP3), Corrtest Instruments (CS350M), Ivium Technologies (CompactStat.e20250), and Metrohm Autolab (PGSTAT204).
Published Application Example
High-Rate CO₂ Electroreduction to Ethylene
A three-chamber flow cell was used to evaluate surface N-coordinated Cu gas-diffusion electrodes for CO₂ electroreduction. Continuous 1.0 M KOH circulation, controlled CO₂ delivery and three-electrode operation enabled evaluation of product selectivity, impedance, stability and moderate-to-high-current-density performance. The optimized catalyst achieved an ethylene Faradaic efficiency of 73.2% and an ethylene partial current density of −700.8 mA cm⁻².
Demonstrated EC-GDE3 / EC-GDE4 Capabilities
- Supports direct CO₂ delivery to sheet-type GDEs under continuous electrolyte-flow conditions.
- Enables controlled evaluation of activity, selectivity, impedance and high-current-density response.
- Supports visual investigation of flooding and salt precipitation during extended electrolysis.
Additional Published Applications
- Chen, X. et al. Nat. Commun. 2024, 15, 7691.
- Qing, H. et al. Nat. Commun. 2025, 16, 11263.
- Bai, Y. et al. Sci. China Mater. 2026, 69, 2747–2756.