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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Enhancing the properties of ZrO2(MgO)/CaO-Al2O3 bilayer structure by doping CeO2 for application in metallurgical electrochemical sensor
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Enhancing the properties of ZrO2(MgO)/CaO-Al2O3 bilayer structure by doping CeO2 for application in metallurgical electrochemical sensor

机译：通过掺杂CEO2在冶金电化学传感器中应用CEO2来增强ZrO2（MgO）/ CaO-Al2O3双层结构的性质

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摘要

The bilayer structure of ZrO2(MgO)/CaAl2O4+CaAl4O7 used as high temperature ion-conducting ceramic for industrial applications in electrochemical sensor was fabricated by screen-printing technology using ZrO2(MgO) electrolyte as the substrate and CaAl2O4+CaAl4O7 complexes doped with CeO2 as the coating materials. The effect of the CeO2 doped in the CaAl2O4+CaAl4O7 complex on the properties of the bilayer structure was investigated in terms of the phase composition, microstructure, ionic conductivity and application in sulfur and phosphorus determination. It was demonstrated that there was a transition layer between the electrolyte substrate and the CaAl2O4+CaAl4O7 coating when CeO2 added, forming a structure of electrolyte substrate/transition layer/coating, which made the CaAl2O4+CaAl4O7 coating adhere to the ZrO2(MgO) electrolyte more firmly compared with that of without CeO2 addition. A considerable increase in total ionic conductivity was observed with increasing the temperature and the amount of CeO2 addition. The bilayer structure of ZrO2(MgO)/CaAl2O4+CaAl4O7 could be used as a bifunctional electrolyte for preparation of sulfur sensor and phosphorus sensor at different measurement conditions. Furthermore, the electrochemical sensor had been assembled by the bilayer structure of ZrO2(MgO)/CaAl2O4+CaAl4O7 doped 3.0 wt% CeO2 and achieved good effect in sulfur and phosphorus determination in the liquid iron at 1773 K. (C) 2020 Elsevier B.V. All rights reserved.
机译：用作电化学传感器中的高温离子传导陶瓷的ZrO2（MgO）/ CaA12O4 + CaAL4O7的双层结构通过ZrO2（MgO）电解质作为基材和CaAL2O4 + CaAL4O7复合物制成电化学传感器中的工业应用，用于电化学传感器中的工业应用。用CeO2掺杂作为涂料。在CaAL2O4 + CaAL4O7复合物中掺杂在双层结构的性质中的CeO 2的效果在相对组合物，微观结构，离子电导率和硫和磷测定中的应用方面研究了双层结构的性质。结果证明，当加入CeO 2时，在电解质基板和CaAL2O4 + CaAL4O7涂层之间存在过渡层，形成电解质基板/过渡层/涂层的结构，使CaAL2O4 + CaAL4O7涂层粘附到ZrO2（MgO）电解质上与没有CEO2的补充更加牢固地相比。随着增加的温度和CeO 2添加量，观察到总离子电导率的相当大的增加。的ZrO 2（MgO）构成的双层结构/ CaAl2O4脱氧剂+ CaAl4O7可以用作用于以不同的测量条件下制备硫传感器和磷传感器的双官能电解质。此外，电化学传感器已由ZrO2（MgO）/ CaAL2O4 + CaAL4O7的双层结构组装，掺杂3.0wt％CeO 2，并在1773K液铁中的含硫和磷测定效果良好。（c）2020 Elsevier BV全部权利保留。

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