COMPOSITION FOR GAS SENSOR AND A NITROGEN OXIDE GAS SENSOR USING THE SAME CAPABLE OF OBTAINING IMPEDANCE TYPE GAS SENSOR WITH EXCELLENT TEMPERATURE AND HUMIDITY PROPERTIES

摘要

PURPOSE: A composition for gas sensor and a nitrogen oxide gas sensor using the same is provided to drastically improving selectivity and response speed and increase sensitivity of the sensor.;CONSTITUTION: A composition for gas sensor comprises lanthanide perovskite-type oxide. The lanthanide perovskite-type oxide is manufactured by reacting mixed solution including lanthanum based compound, nitrate of transition metal, dispersion solvent, chelating agent and polyvinyl pyrrolidone. The nitrogen oxide gas sensor(100) is composed of lanthanide perovskite-type oxide(10), lithium ion solid electrolyte(20), metal electrodes(30), an impedance lead wire(40) and an inorganic adhesive(50). The metal electrode is symmetrically formed at the lower surface of the lithium ion solid electrolyte. The impedance lead wire electrically interlinks the symmetrically formed metal electrode. The inorganic adhesive helps the metal electrode not to be effected by the arrested gas.;COPYRIGHT KIPO 2013