Patent ID: 8702935
Filing Date: 2014-04-22
Classification: G01N,Y10T

Abstract:
1. A method of limiting gas transfer between electrodes in an electrochemical gas sensor, the electrochemical gas sensor including a housing, and a first working electrode within the housing, the first working electrode including a first section of gas transfer medium including a first layer of catalyst thereon, the electrochemical gas sensor further including at least a second working electrode within the housing, the second working electrode including a second section of gas transfer medium including a second layer of catalyst thereon, the method comprising: irreversibly altering at least one area of at least one of the first section of gas transfer medium and the second section of gas transfer medium so that the structure of the at least one area is irreversibly altered via at least one of heat sealing, chemical reaction or material deposition to prevent gas transfer through the at least one of the first section of gas transfer medium or the second section of gas transfer medium toward the other of the at least one of the first section of gas transfer medium and the second section of gas transfer medium in the absence of mechanical compression of the at least one area.