ELECTROCHEMICAL GAS SENSOR WITH IONIC LIQUID ELECTROLYTIC SYSTEM INCLUDING, AT LEAST, ONE CATION MONOALKYLAMMONIUM, DIALKYLAMMONIUM OR TRIALKYLAMMONIUM

摘要

1. An electrochemical gas sensor containing an ionic liquid as an electrolyte, characterized in that the ionic liquid contains at least one cation selected from the group consisting of a monoalkylammonium cation, a dialkylammonium cation and a trialkylammonium cation, wherein the individual alkyl groups of the cation are branched or unbranched and have from 1 to 4 carbon atoms, and the individual alkyl groups of the cation are the same or different in the case of the dialkylammonium cation and the trialkylammonium cation. 2. The electrochemical gas sensor according to claim 1, characterized in that the individual alkyl groups have from 2 to 4 carbon atoms. The electrochemical gas sensor according to claim 1, characterized in that the electrolyte of this electrochemical gas sensor is absorbed to a level of at least 90% by solid material, or the electrolyte is present in an unabsorbed state. The electrochemical gas sensor according to claim 1, characterized in that the electrochemical gas sensor contains at least two electrodes that are in ion contact with the ionic liquid and which are electrically isolated from each other by at least one separator or space. . The electrochemical gas sensor according to claim 1, characterized in that each electrode independently contains one identical or different, at least one metal from the group comprising Cu, Ni, Ti, Pt, Ir, Au, Pd, Ag, Ru, Rh at least one metal oxide from the group consisting of Cu, Ni, Ti, Pt, Ir, Au, Pd, Ag, Ru, Rh, a mixture thereof or carbon. 6. The electrochemical gas sensor according to claim 1, characterized in that at least one cation is ethylammonium. Elek