| 摘要 |
PURPOSE:To improve the aging stability of gas sensitivity by providing an action electrode, a counter electrode, and a reference electrode on an insulating substrate, providing a polymer solid electrolyte film covering an electrode group and burying gaps between the electrodes, improving the polymer solid electrolyte film of an electrochemical gas sensor to be hardly polluted by a pollutant contained in the atmosphere, and preventing the reduction of gas permeability. CONSTITUTION:An electrochemical gas sensor is provided with an action electrode 2, a counter electrode 3, and a reference electrode 4 on an insulating substrate 1, and a series of air-permeable polymer solid electrolyte film 6 covering an electrode group 5 and burying gaps 7 between the electrodes is provided. A fluoric skin 8 is formed on the surface of the polymer solid electrolyte film 6. |
