Electrochemical gaseous chlorine sensor and method for making the same
First Claim
1. An electrochemical type gaseous chlorine sensor comprising:
- an ionic permeable film, said ionic permeable film being a solid polymer electrolyte (SPE) and being permeable to chlorine gas; and
a first electrode and a second electrode separately formed on two opposite sides of the ionic permeable film, in which said first electrode and said second electrode are a metallic conductor with a catalytic activity;
a conductive polymer film formed on said first electrode.
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Abstract
The present invention relates to an electrochemical gaseous chlorine sensor. The sensor is characterized by covering one of the electrodes with a polymer material having a sensing activity and conductivity. The sensor includes: an ionic permeable film for separating a measuring chamber and a reference chamber, the ionic permeable film being a solid polymer electrolyte; a first electrode and a second electrode formed on two opposite sides of the ionic permeable film, the first electrode and the second electrode being conductors with catalytic activities; and a conductive polymer film formed on the first electrode. A fixed voltage ranging from −0.3 to 1.3V, preferably 0 to 0.2V, between said first electrode and said second electrode is maintained with a device, when the sensor is in use.
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Citations
15 Claims
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1. An electrochemical type gaseous chlorine sensor comprising:
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an ionic permeable film, said ionic permeable film being a solid polymer electrolyte (SPE) and being permeable to chlorine gas; and
a first electrode and a second electrode separately formed on two opposite sides of the ionic permeable film, in which said first electrode and said second electrode are a metallic conductor with a catalytic activity;
a conductive polymer film formed on said first electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification