Electrochemical equilibrium of air-referenced oxygen sensors in liquid LBE and analysis for determination of oxygen solubility

IF 1.9 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Annals of Nuclear Energy Pub Date : 2025-02-21 DOI:10.1016/j.anucene.2025.111272

Ruixian Liang, Huiping Zhu, Hao Wu, Zhangpeng Guo, Haicai Lyu, Zulong Hao, Yang liu, Fang Liu, Fenglei Niu

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Abstract

This paper presents the development of oxygen sensors based on four electrode materials lanthanum strontium cobalt ferrite (LSCF), lanthanum strontium manganese (LSM), platinum (Pt) and silver (Ag), and yttria-stabilized zirconia (YSZ) solid electrolyte. The responsiveness, accuracy, stability and repeatability of the various oxygen sensors were evaluated. The findings indicate that the LSCF, LSM and Ag electrode oxygen sensors exhibit optimal operational suitability, whereas the Pt electrode oxygen sensor is suitable for environments exceeding 650 K. The performance of 5YSZ solid electrolytes is more susceptible to low temperature effects than that of 8YSZ solid electrolytes. And the output electromotive force (EMF) as a function of temperature for the liquid LBE in a saturated oxygen environment was obtained, show as:

E = 1.1307 - 5.9443 \times 10^{- 4} T

, within 473 ∼ 823 K. Furthermore, the oxygen solubility of the liquid LBE was determined by combining the aforementioned thermodynamic data, show as:

\ln C_{O, S} = 7.09 - 10922 / T

, (C_O,S in wt.%).

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来源期刊

Annals of Nuclear Energy 工程技术-核科学技术

CiteScore

4.30

自引率

21.10%

发文量

632

审稿时长

7.3 months

期刊介绍： Annals of Nuclear Energy provides an international medium for the communication of original research, ideas and developments in all areas of the field of nuclear energy science and technology. Its scope embraces nuclear fuel reserves, fuel cycles and cost, materials, processing, system and component technology (fission only), design and optimization, direct conversion of nuclear energy sources, environmental control, reactor physics, heat transfer and fluid dynamics, structural analysis, fuel management, future developments, nuclear fuel and safety, nuclear aerosol, neutron physics, computer technology (both software and hardware), risk assessment, radioactive waste disposal and reactor thermal hydraulics. Papers submitted to Annals need to demonstrate a clear link to nuclear power generation/nuclear engineering. Papers which deal with pure nuclear physics, pure health physics, imaging, or attenuation and shielding properties of concretes and various geological materials are not within the scope of the journal. Also, papers that deal with policy or economics are not within the scope of the journal.