DEMS for Electrocatalytic Reaction Mechanism Analysis

Application details

Currently, in most cases, electrochemical reaction gas phase or volatile product is based on steady-state polarization and chromatography analysis, steady-state polarization only reflects total reaction currents and does not distinguish step-by-step reactions. For most studies of electrochemicals, in situ studies in the process of electrostatic dynamic scanning or modulation are of greater research value. In situ electrochemical mass spectrometers (DEMS) are instruments that combine electrochemical reaction cells with mass spectrometers and allow time-sensitive qualitative or quantitative analysis of substances in the process of electrodynamic dynamic scanning or chromatography, which can be applied to a variety of electro-catalytic reactions and are important tools for studying electrochemical reaction machines, rapid screening and evaluation of electrical catalysts.

The test was as follows:

1. CO₂Catalysing gas phase (CO, CH)₄,C₂H₄,CH₃OH et al.) instantaneous test, relative to Faraday efficiency test

2. Nitrate root electro-catalyzed reduction NO,N₂O,NH₂OH,NH₃,N₂In situ detection of intermediate or end product

3. Marking of the OER isotope in electrolytic water¹⁸O, LOM or AEM response machine confirmed

4. An instantaneous detection and current efficiency calculation of the intermediate or end product (HCHO, HCOOH, CO, etc.) of a methanol electro-oxidation reaction

Hydrogen isotope markers, hydrogas extraction reaction (HER)

6. Assessment of carbon material stability (CO, CO at high power level)₂Test)

7. Other (photo-catalytic, photo-catalytic, oxygen reduction, hydroxide, chlorine gas extraction, organic electron synthesis, etc.)

Selected client application cases:

1. Quantum nitrate reduction intermediate detection

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