Development of Potentiometric Sensors for C₂H₄ Detection.

ABSTRACT: Gas exhaust emissions in vehicles are increasingly restrictive in EU and USA. Diesel engines are particularly affected by limitation in hydrocarbons and NOx concentrations. This work presents a screening of working electrode materials to develop a potentiometric sensor, with the most promising material to detect being C₂H₄ at 550 °C. The device consists of a dense 8YSZ (8 mol% Y₂O₃ stabilized ZrO₂) disk as oxide-ion conducting electrolyte, whereas platinum is screen-printed in the back face as reference electrode. As working electrode, several materials such as Fe_0.7Cr_1.3O₃, ZnCr₂O₄, Fe₂NiO₄, La_0.8Sr_0.2CrO_3-δ (LSC), La_0.8Sr_0.2MnO₃ (LSM), and NiO+5%wt Au were tested to detect C₂H₄. Sensor voltage was measured for s

SUBMITTER: Toldra-Reig F 

PROVIDER: S-EPMC6164524 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature