首页|Preparation and characterization of (Ca2+, Al3+)-infiltrated CaO-Al2O3 auxiliary electrode for electrochemical sulfur sensor
Preparation and characterization of (Ca2+, Al3+)-infiltrated CaO-Al2O3 auxiliary electrode for electrochemical sulfur sensor
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NSTL
Elsevier
A new strategy for preparing a novel CaO-Al2O3 auxiliary electrode coating for sulfur sensor by infiltrating Ca2+ and Al3+ into the porous ZrO2(MgO) backbone was proposed in this work. The phase composition and microstructure of the auxiliary electrode was detected and correlated to the electrochemical perfor-mance, while the application of the sulfur sensor in the liquid iron was presented. It is demonstrated that the CaO-Al2O3 particles were homogenously coated on the ZrO2(MgO) backbone and formed well con-nected network, which could effectively improve the reaction area between CaO-Al2O3 and [S] as well as enhancing the ionic conductivity and bonding strength of the auxiliary electrode. The assembled sulfur sensor possessed a superior sensing performance of theoretical response, simultaneously the Nernst rela-tionship between the sensor EMF output and the linearity of the sulfur concentration occurred along with the stable, continuous, and reproducible response. (C) 2021 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
NSTL
Elsevier
