Description
Product Overview
The EC-GDE-PEC1 is a three-compartment, three-electrode photoelectrochemical cell for studying gas diffusion electrodes under illumination. Its serpentine gas-flow design enhances contact between the reactant gas and catalyst, while a quartz optical window enables operando observation of electrode interfaces and supports investigation of charge-transfer processes in photoelectrochemical research.
Key Features
- Operando Optical Access: Provides optical access to the electrode interface for operando monitoring during photoelectrochemical reactions.
- Serpentine Gas Distribution: Directs reactant gas across the catalyst surface to enhance gas-catalyst contact.
- Gas Diffusion Electrode Testing: Supports photoelectrochemical testing of hydrophobic gas diffusion electrodes under illuminated operating conditions.
Technical Specifications
| Chamber structure | Three-chamber |
| Electrode system | Three-electrode |
| Active area | 4 cm² (20 x 20 mm, customizable) |
| Working electrode | Hydrophobic sheet-type gas diffusion electrode |
| Reference electrode | Ag/AgCl electrode |
| Counter electrode | Platinum wire, Ø0.5 mm × L230 mm |
| Optical window material | Quartz |
| Cell body material | Ti + PTFE |
Typical Applications
- Gas-Diffusion Electrode Studies: Evaluating hydrophobic sheet-type gas diffusion electrodes under illuminated photoelectrochemical conditions.
- Photoelectrochemical Gas Conversion: Investigating light-assisted conversion of gaseous reactants at electrode interfaces.
- Gas-Liquid-Solid Interface Studies: Examining mass transfer and reaction behaviour at triphase interfaces.
- Operando Interface Observation: Monitoring illuminated electrode interfaces through the quartz optical window during operation.
Instrument Compatibility
- Gas and Electrolyte Flow Compatibility: Compatible with regulated gas supplies and electrolyte-circulation systems equipped with mass flow controllers, gas flow meters, peristaltic pumps and gas-liquid mixing 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).
Related Published Application
Continuous Photoelectrochemical Methane Conversion in a Flow Cell: Meng et al. evaluated methane conversion using a triphase R-TiO₂/ZnWO₄ fibrous photoanode in a sealed three-electrode flow cell with a Nafion 117 separator and front illumination. Compared with batch operation, the system achieved 16.6-fold higher production rate and 4.0-fold higher C₂+ product selectivity, while operating stably for at least 100 h.
Reproduced from Meng, X. et al. Nat. Commun. 2023, 14, 2643. CC BY 4.0.
Capabilities Relevant to the EC-GDE-PEC1
- Front-illuminated testing of gas diffusion photoelectrodes.
- Gas-liquid-solid triphase reaction interface studies.
- Three-electrode operation with operando optical access.
Note: The referenced study used a sealed photoelectrochemical flow cell with a configuration comparable to the EC-GDE-PEC1. The commercial cell model was not identified, and the study is included solely as a related application example.
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