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GAS SENSOR AND METHOD OF MAKING

  • US 20090159446A1
  • Filed: 12/20/2007
  • Published: 06/25/2009
  • Est. Priority Date: 12/20/2007
  • Status: Active Grant
First Claim
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1. A gas sensor, comprising:

  • a gas sensing layer comprising WO3-δ

    , wherein 0.35≧

    δ

    >

    0, and comprising a dopant selected from the group consisting of Re, Ni, Cr, V, W, and a combination thereof; and

    at least one electrode positioned adjacent to layer of titanium and a response modification layer of a material selected from the group consisting of Ti, Ni, Cr, V, W, Re and a combination thereof, the at least one electrode being in communication with the gas sensing layer;

    wherein the gas sensing layer is capable of detecting at least one gas selected from the group consisting of NO, NO2, SOx, O2, H2O and NH3.

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