In-Situ Mass Spectrometry Flow Electrochemical Cell

Description

The In-Situ Mass Spectrometry Flow Electrochemical Cell enables real-time detection of volatile and gaseous reaction intermediates generated during electrochemical processes. Engineered for operando coupling between electrochemical control and mass spectrometric analysis, this precision flow cell allows simultaneous measurement of current, potential, and gas-phase species composition under controlled flow and potential conditions.

The cell integrates a three-electrode configuration (working, counter, and reference electrodes) within a chemically resistant PEEK or PTFE body, with a micro-channel flow architecture that directs reaction gases and electrolytes toward a mass spectrometer inlet or membrane interface.
The design supports direct gas sampling for differential electrochemical mass spectrometry (DEMS) or membrane-inlet mass spectrometry (MIMS), providing quantitative information about reaction kinetics and product evolution.

Typical applications include CO₂ reduction (CO₂RR), oxygen evolution (OER), hydrogen evolution (HER), alcohol and fuel oxidation reactions, and battery gas evolution studies—where understanding gas formation and catalytic selectivity is crucial.

For customised flow geometries, electrode dimensions, or MS interface fittings, please contact us.

Key Features

• Operando Mass Spectrometry Integration – designed for direct coupling with DEMS or MIMS systems.
• Three-Electrode Configuration – independent WE, RE, and CE ports ensure accurate electrochemical control.
• Flow-Through Channel Design – continuous electrolyte and gas exchange for steady-state reaction monitoring.
• Gas-Tight Construction – PTFE or PEEK housing with precision sealing prevents cross-contamination and gas loss.
• Custom Electrode Compatibility – supports planar, disc, or mesh electrodes (Au, Pt, Ag, GC, Ni, Cu).
• Temperature and Pressure Control – optional fittings for thermostatic regulation and pressure-controlled gas sampling.
• Easy Assembly and Cleaning – modular compression design allows quick electrode replacement and maintenance.
  
  

Technical Specifications

Applications

• CO₂ electroreduction (CO₂RR): quantitative detection of CO, CH₄, H₂, and formate evolution.
• Hydrogen and oxygen evolution reactions (HER/OER): analysis of bubble nucleation and gas efficiency.
• Electrocatalyst stability testing: monitoring degradation and volatile side products.
• Fuel oxidation (e.g., methanol, ethanol, glycerol): correlating faradaic efficiency with gaseous yield.
• Battery and capacitor vent-gas analysis: tracking electrolyte decomposition and gas release mechanisms.
• Corrosion and dissolution studies: identification of volatile metal-oxide species during anodic processes.