HPR-40 DEMS for Dissolved Gas Analysis

The Hiden HPR-40 DEMS is a benchtop or mobile cart-mounted electrochemistry module for dissolved species analysis. The system is versatile and modular. Two differential electrochemical mass spectrometry (DEMS) cell inlets are included in the system;cell type A for material/catalysis investigations and cell type B for electrochemical reaction studies.

Overview

DEMS (Differential Electrochemical Mass Spectrometry) is a mass spectrometry-based analytical approach that combines electrochemical half-cell experiments with mass spectrometry. It providesreal-time mass resolution measurement of gaseous or volatile electrochemical reactants, intermediatesand products.

Hiden Analytical offers a variety of DEMS cells that connect to the Hiden HPR-40 DSA Mass Spectrometer through an electrolyte/nanoporous sampling interface.

Several standard intake choices are offered for situations where online electrochemical MS, OEMS, from an existing cell or reactor is required, enabling both evolved off-gas and dissolved species analysis solutions. Electrochemical cells from Redoxme AB and EL-Cell^® are amongthose that can be interfaced with the Hiden HPR-40 DEMS system.

Features

Up to 4 additional electrodes can be connected

Dissolved species analysis with a mass range of 200 amu (300 amu option)

Can be interfaced to the Hiden HPR-40 DSA mass spectrometer

A working electrode made of vitreous carbon that may be coated by the user

A nanoporous membrane that can be replaced

Application of DEMS

Hydrogen Oxidation Reaction

Oxygen Reduction Reaction

CO2 Reduction

Methanol/Formic Acid Oxidation

Ethanol Oxidation

Ammonia/Hydrazine Oxidation

Cathode Effects

Battery Cycling

Electrolyte Reactions in Batteries

Other Fuel Cells (Borohydride, DMFC)

Mechanistic Investigations on Methanol Oxidation

Electrochemical Oxidation of Organics in (Waste-) Water Treatment

Electrochemical Oxidation of CO