| 摘要 |
A NO<SUB>x </SUB>gas sensor for measuring NO, NO<SUB>2 </SUB>and NO<SUB>x </SUB>gas content from automotive exhaust including a method for producing such a gas sensor. The NO<SUB>x </SUB>gas sensor generally includes a substrate, and a plurality of electrodes preformed and located on one side of the substrate. A platinum heater is located the other and opposite side of the substrate. A coating of nano-crystalline powders of a semi-conducting oxide material can be located and configured on the plurality of electrodes preformed on the substrate, thereby forming a gas sensor for the detection of NO<SUB>x</SUB>. The substrate may be composed of a ceramic material, glass, alumina and/or another type of high-melting material. The electrodes, along with the heater are preferably composed of platinum. The semi-conducting oxide material preferably comprises YMnO<SUB>3 </SUB>or doped YMnO<SUB>3</SUB>.
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