Electrochemical gaseous chlorine sensor and method for making the same
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United States of America Patent
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Issued Date -
Oct 31, 2002
app pub date -
Feb 26, 2001
filing date -
Feb 26, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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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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