Electrochemical Sensors for Controlling Oxygen Content and Corrosion Processes in Lead-Bismuth Eutectic Coolant—State of the Art

Standard

Electrochemical Sensors for Controlling Oxygen Content and Corrosion Processes in Lead-Bismuth Eutectic Coolant—State of the Art. / Orlov, Sergey N. ; Bogachev, Nikita A. ; Mereshchenko, Andrey S. ; Zmitrodan, Alexandr A. ; Skripkin , Mikhail Yu. .

в: Sensors, Том 23, № 2, 812, 10.01.2023.

Результаты исследований: Научные публикации в периодических изданиях › Обзорная статья › Рецензирование

BibTeX

@article{6d5ddf6cb6974d8d8090a5abcfe06614,

title = "Electrochemical Sensors for Controlling Oxygen Content and Corrosion Processes in Lead-Bismuth Eutectic Coolant—State of the Art",

abstract = "Controlling oxygen content in the primary circuit of nuclear reactors is one of the key tasks needed to ensure the safe operation of nuclear power plants where lead-bismuth eutectic alloy (LBE) is used as a coolant. If the oxygen concentration is low, active corrosion of structural materials takes place; upon increase in oxygen content, slag accumulates due to the formation of lead oxide. The generally accepted method of measuring the oxygen content in LBE is currently potentiometry. The sensors for measuring oxygen activity (electrochemical oxygen sensors) are galvanic cells with two electrodes (lead-bismuth coolant serves as working electrode) separated by a solid electrolyte. Control of corrosion and slag accumulation processes in circuits exploring LBE as a coolant is also based on data obtained by electrochemical oxygen sensors. The disadvantages of this approach are the low efficiency and low sensitivity of control. The alternative, Impedance Spectroscopy (EIS) Sensors, are proposed for Real-Time Corrosion Monitoring in LBE system. Currently their applicability in static LBE at temperatures up to 600 °C is shown.",

keywords = "lead-bismuth eutectic coolant, Structural materials, protective film, corrosion, oxygen activity sensors, impedance spectroscopy, Oxygen, Alloys/chemistry, Corrosion, Bismuth, structural materials",

author = "Orlov, {Sergey N.} and Bogachev, {Nikita A.} and Mereshchenko, {Andrey S.} and Zmitrodan, {Alexandr A.} and Skripkin, {Mikhail Yu.}",

note = "Orlov, S.N.; Bogachev, N.A.; Mereshchenko, A.S.; Zmitrodan, A.A.; Skripkin, M.Y. Electrochemical Sensors for Controlling Oxygen Content and Corrosion Processes in Lead-Bismuth Eutectic Coolant—State of the Art. Sensors 2023, 23, 812. https://doi.org/10.3390/s23020812",

year = "2023",

month = jan,

day = "10",

doi = "10.3390/s23020812",

language = "English",

volume = "23",

journal = "Sensors",

issn = "1424-3210",

publisher = "MDPI AG",

number = "2",

}

RIS

TY - JOUR

T1 - Electrochemical Sensors for Controlling Oxygen Content and Corrosion Processes in Lead-Bismuth Eutectic Coolant—State of the Art

AU - Orlov, Sergey N.

AU - Bogachev, Nikita A.

AU - Mereshchenko, Andrey S.

AU - Zmitrodan, Alexandr A.

AU - Skripkin , Mikhail Yu.

N1 - Orlov, S.N.; Bogachev, N.A.; Mereshchenko, A.S.; Zmitrodan, A.A.; Skripkin, M.Y. Electrochemical Sensors for Controlling Oxygen Content and Corrosion Processes in Lead-Bismuth Eutectic Coolant—State of the Art. Sensors 2023, 23, 812. https://doi.org/10.3390/s23020812

PY - 2023/1/10

Y1 - 2023/1/10

N2 - Controlling oxygen content in the primary circuit of nuclear reactors is one of the key tasks needed to ensure the safe operation of nuclear power plants where lead-bismuth eutectic alloy (LBE) is used as a coolant. If the oxygen concentration is low, active corrosion of structural materials takes place; upon increase in oxygen content, slag accumulates due to the formation of lead oxide. The generally accepted method of measuring the oxygen content in LBE is currently potentiometry. The sensors for measuring oxygen activity (electrochemical oxygen sensors) are galvanic cells with two electrodes (lead-bismuth coolant serves as working electrode) separated by a solid electrolyte. Control of corrosion and slag accumulation processes in circuits exploring LBE as a coolant is also based on data obtained by electrochemical oxygen sensors. The disadvantages of this approach are the low efficiency and low sensitivity of control. The alternative, Impedance Spectroscopy (EIS) Sensors, are proposed for Real-Time Corrosion Monitoring in LBE system. Currently their applicability in static LBE at temperatures up to 600 °C is shown.

AB - Controlling oxygen content in the primary circuit of nuclear reactors is one of the key tasks needed to ensure the safe operation of nuclear power plants where lead-bismuth eutectic alloy (LBE) is used as a coolant. If the oxygen concentration is low, active corrosion of structural materials takes place; upon increase in oxygen content, slag accumulates due to the formation of lead oxide. The generally accepted method of measuring the oxygen content in LBE is currently potentiometry. The sensors for measuring oxygen activity (electrochemical oxygen sensors) are galvanic cells with two electrodes (lead-bismuth coolant serves as working electrode) separated by a solid electrolyte. Control of corrosion and slag accumulation processes in circuits exploring LBE as a coolant is also based on data obtained by electrochemical oxygen sensors. The disadvantages of this approach are the low efficiency and low sensitivity of control. The alternative, Impedance Spectroscopy (EIS) Sensors, are proposed for Real-Time Corrosion Monitoring in LBE system. Currently their applicability in static LBE at temperatures up to 600 °C is shown.

KW - lead-bismuth eutectic coolant

KW - Structural materials

KW - protective film

KW - corrosion

KW - oxygen activity sensors

KW - impedance spectroscopy

KW - Oxygen

KW - Alloys/chemistry

KW - Corrosion

KW - Bismuth

KW - structural materials

UR - https://www.mendeley.com/catalogue/e89d138e-698d-39fc-8733-77f6d7007393/

U2 - 10.3390/s23020812

DO - 10.3390/s23020812

M3 - Review article

C2 - 36679606

VL - 23

JO - Sensors

JF - Sensors

SN - 1424-3210

IS - 2

M1 - 812

ER -

ID: 102199563