ELECTROCHEMICAL GAS SENSOR COMPRISING MESOPOROUS LAYER BETWEEN WORKING AND COUNTER ELECTRODES

摘要

A sensor for sensing a target substance in a gas stream is provided, the sensor comprising a sensing element disposed to be exposed to the gas stream, the sensing element comprising a working electrode; a counter electrode; and a layer of mesoporous material extending between the working electrode and the counter electrode; whereby contact of the mesoporous layer with the gas stream forms an electrical contact between the working and counter electrodes.