The HPR-40 DEMS is a laboratory mass spectrometry device designed for in situ, real-time analysis of gases and volatile species in electrochemical research.
Suitable for fuel cell diagnostics, CO2 reduction, catalyst evaluation, corrosion studies, oxygen reduction reaction (ORR), and battery research, it supplies scientists with accurate, real-time data on reaction pathways and product selectivity.
Applications
- DEMS
- Electrolysis
- Fuel Cell Studies
- CO2 Reduction
- Cathode Studies
- Electrocatalyst Studies
Overview
An introduction to DEMS - Differential Mass Spectrometry
Video Credit: Hiden Analytical/YouTube.com
With its modular design and compatibility with numerous electrochemical cells and probes, the HPR-40 DEMS is a versatile option for multi-disciplinary laboratories. By streamlining workflows and eliminating the need for time-consuming offline sampling approaches, researchers can accelerate discovery and gain a better understanding of electrochemical processes.
Several adaptable accessories allow the system to be used for numerous applications while maintaining the same software and mass spectrometer.
The provided ECL series of electrochemical cells has either a vitreous carbon working electrode (ECL-Static) or a sputter-compatible membrane (ECL-Insight), which can be user-coated to fit the specific requirements of a given experiment.
This versatility enables scientists to tailor the surface to specific reactions, increasing the relevance and accuracy of their findings. The electrode's sturdy architecture allows for repeatable, long-term research.
The ECL-Probe completes the ECL series by allowing for direct dissolved gas analysis in either ‘off the shelf’ or custom-made cells. The probe's non-metal composition enables full immersion into an electrolyte without interacting with the electrochemistry.
The HPR-40 DEMS was designed to aid research without adding unnecessary stops and starts. Its readily changeable nanoporous membrane interface ensures consistent performance and minimizes downtime, allowing users to focus on results rather than maintenance.
With ECL series cells, electrocatalysts are placed directly at the membrane surface, resulting in shorter response times, closer synchronization with electrochemical measurements, and the confidence to conduct extended research with ease.
The provided cables allow for easy integration of the HPR-40 DEMS with the electrochemical workstation, ensuring data synchronization within a single user-friendly software package. QGA software's multiple-axis views enable the user to plot the interaction of potential, current, time, and mass spectrometer signals in real time.
The HPR-40 DEMS provides a comprehensive solution for labs specializing in energy storage, catalysis, corrosion, and advanced material investigations, all supported by Hiden Analytical’s 40+ years of experience.
Because of its versatility, accuracy, and user-friendliness, it is a vital tool for scientists looking for precise, useful information about electrochemical reactions.
ECL-Insight
- Near-instantaneous time response: The direct electrode-to-MS connection enables rapid, quantitative product detection.
- Rapid scan capability: Ultra-fast voltage sweeps (up to 100 mV/s) allow real-time monitoring of transient processes.
- High sensitivity: The detection limit for hydrogen evolution is ~50 µA/cm2.
- Exceptional collection efficiency: Captures products directly at the electrode-electrolyte interface, allowing for reliable measurement even under flow.
- High-current capability: The mass spectrometer can support up to 100 mA/cm2 and has an optimized flow design that avoids bubble formation. Gas products are rapidly absorbed, even at high current densities.
- Mechanistic insight: Observes local CO2 depletion, intermediate species, and concentration effects that are not possible with conventional methods.
- Trusted accuracy: Results are consistent with standard GC analysis, but completed within a fraction of the time.
- Simple to operate: The working electrode is made of a gold-sputter-coated membrane.
- Dual-chamber design: Prevents anode byproducts from contaminating the cathode and poisoning it.
- Non-metallic construction: Enhances chemical compatibility and reduces interference.
- Flexible research tool: Suitable for CO2 reduction, hydrogen evolution, and isotope labeling experiments.
ECL-Static
- User-friendly and versatile, designed for easy setup and flexible exploration.
- It is configured as a static or flow cell, with extra ports for inlet and exhaust flow for longer studies.
- Customizable working surface - Includes a vitreous carbon electrode that the user can coat easily.
ECL-Probe
- Direct dissolved gas analysis: Allows for real-time measurements in both standard and customized electrochemical cells.
- Unique non-metallic design: Completely immersible in electrolyte without interfering with electrochemistry.
- Enhanced selectivity: Gas concentration is enriched by specialized hydrophobic support
- Ready to connect with the HPR-40 DEMS.
Features
- Multiple cell and inlet types can be used with this versatile Mass Spectrometer system.
- Thanks to the near-instantaneous response and direct electrode-to-MS connection, gas evolution is accurately coordinated with the applied potential and current.
- Deposition-compatible working electrodes.
- Monitoring time/intensity trends and mass scanning for several species.
- Data synchronization within a single intuitive software package.
- Analysis of dissolved and entrained gas species with masses up to 200 amu (300 amu option).
- A turnkey solution that includes all the tools users need to get their experiments underway right away.