CNB-12-EC-RM4
In-situ Raman Spectroelectrochemical Cell Model: EC-RM4
EC-RM4 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-RM4 is designed for in-situ Raman characterization of electrode materials during electrochemical testing. The working electrode is positioned directly beneath a transparent optical window, enabling spectral acquisition during operation. Its PEEK and high-purity titanium construction supports flow-system testing and syringe-based electrolyte filling, while allowing rapid assembly, disassembly, and cleaning.
Key Features
• Short Optical Path
A WE-optical window distance of less than 3 mm supports Raman acquisition from the working electrode
• Interchangeable Disk Electrodes
Supplied with a Ø5 mm glassy carbon electrode and compatible with optional Au, Pt, and Ag disk electrodes
• Flexible Electrolyte Handling
Supports flow-system operation and direct electrolyte filling using a syringe
Technical Specifications
| WE-optical window distance | < 3 mm |
| Optical window diameter | Ø25 mm (effective diameter Ø20 mm) |
| Chamber structure | Single-chamber |
| Electrode system | Three-electrode |
| Working electrode | Ø5 mm glassy carbon disk electrode (standard); Au, Pt, Ag, or other disk electrodes (optional) |
| Reference electrode | Ag/AgCl or Ag/Ag⁺ electrode |
| Counter electrode | Platinum wire electrode |
| Cell body material | PEEK + Ti |
| Optical window material | Quartz |
| Cell body dimensions | L65 × W65 × H19 mm |
Instrument Compatibility
• Raman System Compatibility
Compatible with commercial Raman microscope systems, including WITec (alpha300 R), Renishaw (inVia), and HORIBA (XploRA, LabRAM HR)
• 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
In-situ Raman Detection of Cuδ+–OH Species during CO₂-to-Ethylene Conversion
The cell used in this study, supplied by Beyond Battery under product code EC-RM4, an in-situ Raman spectroelectrochemical cell, was used to monitor Cu/200-C₃N₄ during CO₂ electroreduction. Time-resolved spectra revealed signals assigned to Cu–CO₂, Cuδ+–OH, *OCCHO, *COO-related species, and adsorbed *CO. Combined with ATR-FTIR spectroscopy and DFT calculations, the results indicated that stabilized Cuδ+–OH species promoted asymmetric *CO–*CHO coupling, steering the reaction pathway toward ethylene.
Demonstrated EC-RM4 Capabilities
- Time-resolved in-situ Raman monitoring during CO₂ reduction
- Detection of Cuδ+–OH and carbon-containing intermediates
- Mechanistic investigation under electrochemical reaction conditions
Additional Published Applications
- Han, M. et al. Catal. Sci. Technol. 2026, 16, 4323–4327.
- Tao, K. et al. Nanoscale Adv. 2026, 8, 3761–3768.