Electrochemical Impedance Spectroscopy (EIS) used as a diagnostic tool of oxygen sensors for molten lead - Bismuth eutectic alloy (44.5% Pb - 55.5% Bi)

S. Colominas; A. Verdaguer; J. Abellà

doi:10.1149/1.3268163

Electrochemical Impedance Spectroscopy (EIS) used as a diagnostic tool of oxygen sensors for molten lead - Bismuth eutectic alloy (44.5% Pb - 55.5% Bi)

S. Colominas^*
, A. Verdaguer
, J. Abellà

^*Corresponding author for this work

IQS School of Engineering

Research output: Indexed journal article › Conference article › peer-review

Abstract

One of the coolants proposed for accelerator drive systems (ADS) and Generation IV nuclear reactors is molten lead. A key parameter in the use of molten lead as a coolant is the oxygen activity in the liquid alloy. Potentiometric oxygen sensors for molten metals have been developed in the Electrochemistry Laboratory at Institut Quimic de Sarria since 1998. In this paper we used Electrochemical Impedance Spectroscopy as a diagnostic tool to evaluate the sensor status in service operations. The following parameters have been evaluated: sensor impedance at different temperatures and the effect of using a reductive and a low oxygen content as covering gases, effect of metal oxides accumulation at the ceramic element of the sensor and measurement of the impedance of a short-circuited sensor.

Original language	English
Pages (from-to)	69-78
Number of pages	10
Journal	ECS Transactions
Volume	19
Issue number	32
DOIs	https://doi.org/10.1149/1.3268163
Publication status	Published - 2009
Event	215th Meeting of The Electrochemical Society - San Francisco, United States Duration: 24 May 2009 → 29 May 2009 Conference number: 215

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title = "Electrochemical Impedance Spectroscopy (EIS) used as a diagnostic tool of oxygen sensors for molten lead - Bismuth eutectic alloy (44.5\% Pb - 55.5\% Bi)",

abstract = "One of the coolants proposed for accelerator drive systems (ADS) and Generation IV nuclear reactors is molten lead. A key parameter in the use of molten lead as a coolant is the oxygen activity in the liquid alloy. Potentiometric oxygen sensors for molten metals have been developed in the Electrochemistry Laboratory at Institut Quimic de Sarria since 1998. In this paper we used Electrochemical Impedance Spectroscopy as a diagnostic tool to evaluate the sensor status in service operations. The following parameters have been evaluated: sensor impedance at different temperatures and the effect of using a reductive and a low oxygen content as covering gases, effect of metal oxides accumulation at the ceramic element of the sensor and measurement of the impedance of a short-circuited sensor.",

author = "S. Colominas and A. Verdaguer and J. Abell{\`a}",

year = "2009",

doi = "10.1149/1.3268163",

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journal = "ECS Transactions",

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T1 - Electrochemical Impedance Spectroscopy (EIS) used as a diagnostic tool of oxygen sensors for molten lead - Bismuth eutectic alloy (44.5% Pb - 55.5% Bi)

AU - Colominas, S.

AU - Verdaguer, A.

AU - Abellà, J.

N1 - Conference code: 215

PY - 2009

Y1 - 2009

N2 - One of the coolants proposed for accelerator drive systems (ADS) and Generation IV nuclear reactors is molten lead. A key parameter in the use of molten lead as a coolant is the oxygen activity in the liquid alloy. Potentiometric oxygen sensors for molten metals have been developed in the Electrochemistry Laboratory at Institut Quimic de Sarria since 1998. In this paper we used Electrochemical Impedance Spectroscopy as a diagnostic tool to evaluate the sensor status in service operations. The following parameters have been evaluated: sensor impedance at different temperatures and the effect of using a reductive and a low oxygen content as covering gases, effect of metal oxides accumulation at the ceramic element of the sensor and measurement of the impedance of a short-circuited sensor.

AB - One of the coolants proposed for accelerator drive systems (ADS) and Generation IV nuclear reactors is molten lead. A key parameter in the use of molten lead as a coolant is the oxygen activity in the liquid alloy. Potentiometric oxygen sensors for molten metals have been developed in the Electrochemistry Laboratory at Institut Quimic de Sarria since 1998. In this paper we used Electrochemical Impedance Spectroscopy as a diagnostic tool to evaluate the sensor status in service operations. The following parameters have been evaluated: sensor impedance at different temperatures and the effect of using a reductive and a low oxygen content as covering gases, effect of metal oxides accumulation at the ceramic element of the sensor and measurement of the impedance of a short-circuited sensor.

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DO - 10.1149/1.3268163

M3 - Conference article

AN - SCOPUS:79955662135

SN - 1938-5862

VL - 19

SP - 69

EP - 78

JO - ECS Transactions

JF - ECS Transactions

IS - 32

T2 - 215th Meeting of The Electrochemical Society

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ER -

Electrochemical Impedance Spectroscopy (EIS) used as a diagnostic tool of oxygen sensors for molten lead - Bismuth eutectic alloy (44.5% Pb - 55.5% Bi)

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