Belda, C.C.BeldaFritsch, M.M.FritschKretzschmar, C.C.KretzschmarJung, G.G.Jung2022-03-102022-03-102008https://publica.fraunhofer.de/handle/publica/360659A potentiometric thick-film CO2-Sensor based on the electrochemical cell: O2, CO2, Na2CO3/Au(Doppelstrich)Na-beta/beta''-Al2O3(Doppelstrich)Na2Si2O5/Au, O2, (CO2) was investigated regarding the long-term stability of the solid electrolyte and the influence of preheating conditions. Na-beta/beta''-Al2O3 (NBA) was deposited by means of two different techniques following in a porous and a compact NBA layer, resulting in different stability behavior of the sensor.enKohlendioxidGassensorGaspotentiometrieelektrochemische ZelleFestelektrolytDickschichttechnikAluminiumoxidBeta-PhaseNatriumcarbonatVorwärmenLangzeitstabilitätkeramisches SubstratMiniaturisierung620666conference paper