CNB-12-EC-XRD1
In-situ XRD Electrochemical Cell (Three-Electrode System), Model: EC-XRD1
EC-XRD1 In-situ XRD Electrochemical Cell
A compact three-electrode cell for operando XRD monitoring of electrochemical phase and structural evolution.
Product Overview
The EC-XRD1 provides direct X-ray access to an interchangeable disk working electrode through an X-ray-transparent beryllium (Be) window while maintaining three-electrode electrochemical control. Its compact flow-compatible design supports both syringe filling and external electrolyte circulation, making it suitable for tracking phase transformations and structural evolution of electrode materials under applied electrochemical conditions.
Technical Specifications
| WE-optical window distance | < 3 mm |
| Optical window diameter | Ø25 mm (effective diameter Ø20 mm) |
| Chamber structure | Single-chamber |
| Electrode system | Three-electroder |
| Working electrode | Ø5 mm glassy carbon disk electrode (standard); Au, Pt, Ag, graphite, or pyrolytic graphite disk electrodes (optional) |
| Reference electrode | Ag/AgCl or Ag/Ag⁺ electrode |
| Counter electrode | Ø1 mm Platinum wire electrode |
| Cell body material | PEEK + Ti |
| Optical window material | Beryllium (Be) |
| Cell body dimensions | L65 × W65 × H19 mm |
Note: Solid beryllium is relatively stable and poses low skin-contact risk; avoid inhaling dust or aerosols and wash hands after handling.
Key Features
Direct Structural Observation
Be-window access and a short X-ray path enable direct probing of the working-electrode surface
Flexible Disk-Electrode Selection
Uses a standard Ø5 mm glassy carbon disk and supports interchangeable Au, Pt, Ag, graphite, and pyrolytic graphite disks
Operando Phase-Evolution Analysis
Enables potential- and time-dependent monitoring of crystalline phase transformations and structural evolution of electrode materials
Instrument Compatibility
XRD System Compatibility
Compatible with laboratory X-ray diffractometers that accommodate external electrochemical cells. Measurement geometry, sample-stage clearance, and mounting should be confirmed before use
Potentiostat Compatibility
Compatible with commercial three-electrode potentiostats for electrochemical control during operando XRD measurements
Representative Application Example
Operando XRD Tracking of LiCoO₂ Structural Evolution during OER
A custom-designed three-electrode operando XRD/XAFS cell was used to track LiCoO₂ structural evolution during OER in 0.1 M KOH. As the potential increased stepwise from 1.1 to 1.7 V versus RHE, the LiCoO₂ (003) peak gradually weakened. New reflections at 12.87° and 25.88° appeared above 1.50 V, indicating K₀.₃CoO₂(H₂O)₀.₄ formation associated with potential-dependent cation intercalation and structural transformation.
Demonstrated Operando XRD Capabilities
- Simultaneous XRD acquisition and electrochemical control
- Detection of potential-dependent crystalline phase transformations
- Correlation of diffraction evolution with applied electrode potential
Application Studies
Application studies using this model are currently underway.
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