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In this paper, research on a CO catalytic gas sensor based on nano-crystalline perovskite oxide  NdFeO 3  designed for exhaust gas measurement is presented. Nano-crystalline oxide  NdFeO 3  was synthesized by a sol–gel citrate technique. The gas sensing characteristics of this sensor were investigated in the concentration range of CO between 0 and 5 vol.% in air. The influences of  C 3 H 8 ,  C 4 H 16  gases, relative humidity and air-flow rate on the cross-sensitivity of the CO sensor were also studied.

Nanosized perovskite oxide NdFeO 3 as material for a carbon-monoxide catalytic gas sensor

Nanosized perovskite oxide ^NdFeO ₃ as material for a carbon-monoxide catalytic gas sensor