Description
Product Overview
The EC-GDE4 is a three-chamber, three-electrode gas diffusion electrochemical flow cell developed for short-gap operation and advanced CO₂ electroreduction studies. Its reduced anode–cathode spacing shortens the ionic transport pathway, supporting catalyst evaluation at medium-to-high current densities. The PEEK body incorporates a quartz observation window for direct viewing of the reaction chamber, while independent gas delivery and electrolyte circulation enable controlled electrochemical measurements.
Key Features
- Short Electrode Gap: The 3 mm anode–cathode spacing shortens the ionic transport pathway and helps reduce ohmic losses during electrolysis.
- Quartz Observation Window: The quartz window enables visual monitoring of the reaction chamber, including flooding, bubbles, and salt accumulation.
- Three-Chamber PEEK Construction: The chemically resistant PEEK body supports controlled gas-fed operation with independent electrode compartments.
Technical Specifications
| Chamber structure | Three-chamber |
| Electrode system | Three-electrode |
| Anode-cathode gap | 3 mm |
| Active area | 1 cm² (5 x 20 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 medium-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.
Reproduced from Tao, H. et al. Sustainable Energy & Fuels 2023, 7, 2991–2996. CC BY 4.0.
Demonstrated EC-GDE4 Capabilities
- Supports direct CO₂ delivery to sheet-type GDEs under continuous electrolyte-flow conditions.
- Enables controlled evaluation of activity, selectivity, impedance, and electrochemical response at medium-to-high current densities.
- 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.
Product Identification Note: EC-GDE4 is the Beyond Battery product codes for the corresponding cell configurations reported in the cited publications. The original articles use different product designations.
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