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A selective carbon monoxide (CO) sensor was developed by the use of both of CuCrFeO4 and CoCrFeO4 as the sensing electrode (SE) for yttria-stabilized zirconia (YSZ)-based potentiometric sensor. The sensing-characteristic examinations of the YSZ-based sensors using each of spinel oxides as the single-SE sensor showed that CuCrFeO4-SE had the ability to detect CO, hydrocarbons and NOx gases, while CoCrFeO...
A solid-state potentiometric sensor using yttria-stabilized zirconia (YSZ) as a solid electrolyte and oxide electrodes has been developed for selective CO detection. At 450oC, the YSZ-based sensor using CuCrFeO4 sensing-electrode (SE) was found to have similar gas sensing characteristic with the sensor using CoCrFeO4-SE, except toward CO. When both SEs was paired on a YSZ tube, the responses to various...
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