Potentiometric carbon di:oxide sensor

摘要

In a potentiometric CO2 sensor with a CO2-sensitive electrode (3) and a counter-electrode (4) on an ion conductive solid electrolyte layer (2) supported on a ceramic substrate (1), a carbonate transport inhibiting medium (5) is provided between and spaced from the electrodes (3, 4) and has a high porosity and/or consists of a material which reacts chemically with the carbonate.