Gas Diffusion Electrochemical Cell (Intermediate Series), Model: EC-GDE4

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

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.