CNB-12-EC-RM3SP
In-situ Raman Spectroelectrochemical Cell Model: EC-RM3SP
EC-RM3SP In-Situ Raman Spectroelectrochemical Cell
A short-path, large-window Raman cell for interface-resolved operando analysis of gas-diffusion electrodes under industrially relevant conditions.
Product Overview
The EC-RM3SP is optimized for high-sensitivity operando Raman analysis of gas-diffusion electrodes under gas-fed conditions. Its high-transmittance sapphire window is positioned less than 3 mm from the working electrode, providing a short optical path for interface-resolved Raman acquisition. The three-chamber architecture and serpentine gas flow field support controlled reactant delivery and compartment separation, making the cell suitable for advanced gas-diffusion electrocatalysis and industrially relevant CO₂ electrolysis studies.
Key Features
• Short-Path Raman Access
A WE-optical window distance of less than 3 mm minimizes electrolyte-induced signal attenuation for sensitive interface-resolved measurements
• Broad Raman System Compatibility
Compatible with commercial Raman microscope systems, enabling convenient integration into operando spectroelectrochemical measurements
• Controlled Gas-Diffusion Interface
Serpentine gas flow enhances delivery across the 1 cm² GDE, while close reference-electrode placement minimizes uncompensated resistance
Technical Specifications
| Working electrode area | 1 cm² (customizable) |
| WE-optical window distance | < 3 mm |
| Optical window diameter | Ø38 mm (effective diameter Ø22 mm) |
| Chamber structure | Three-chamber |
| Working electrode | Sheet-type gas-diffusion electrode (e.g., Au, Pt, glassy carbon, ITO, and FTO) |
| Reference electrode | Ag/AgCl or Ag/Ag⁺ electrode |
| Counter electrode | Platinum wire or graphite rod electrode |
| Cell body material | PEEK |
| Optical window material | Sapphire |
| Cell body dimensions | L89 × W70 × H20 mm |
Instrument Compatibility
• Raman System Compatibility
Compatible with commercial Raman microscope systems, including Renishaw (inVia Qontor), HORIBA (LabRAM HR Evolution, iHR550), and Ocean Optical Instruments (HRS-5A)
• Potentiostat Compatibility
Compatible with commercial three-electrode electrochemical workstations, including Donghua Testing Technology (DH7001A), CH Instruments (CHI1140C), Corrtest Instruments (CS2350), and DHElecchem systems
Published Application Example
Operando Raman Tracking of Cu-Site Reconstruction during CO₂ Methanation
The cell used in this study, supplied by Beyond Battery under product code EC-RM3SP, enabled potential-dependent operando Raman monitoring of ZrO₂-supported Cu single-atom catalysts during CO₂ electroreduction, revealing the reconstruction of CuN₄ sites into a CuN₁O₂ coordination environment and tracking key surface species, including *COOH, *HCO₃⁻, and CO₃²⁻. The reconstructed CuN₁O₂ catalyst achieved CH₄ Faradaic efficiencies of 87.06 ± 3.22% at −500 mA cm⁻² and 80.21 ± 1.01% at −1000 mA cm⁻², demonstrating improved activity and stability over the original CuN₄ structure.
Demonstrated EC-RM3SP Capabilities
- Operando Raman monitoring at gas-diffusion electrodes
- Tracking of electrochemically induced catalyst reconstruction
- Potential-dependent detection of CO₂RR surface intermediates
Application Studies
Additional application studies are underway.