TY - JOUR
T1 - Electrochemical Measurement of CoO Solubility Product and Co Solubility in Molten Lead-Bismuth Eutectic by Solid-State Ionic Devices
AU - Gregori, Giacomo
AU - Doneux, Thomas
AU - Lim, Jun
N1 - Score=10
Funding Information:
This study was financially supported by Belgian government through the MYRRHA project. The authors would like to thank Stefan Huysmans and Ladislav Molnar (SCK CEN) for the technical support. Finally, the authors would like to give a special thanks to Daniel Stein (SCK CEN—VUB) for the kind support in the last measurements.
Publisher Copyright:
© 2023 The Electrochemical Society (“ECS”). Published on behalf of ECS by IOP Publishing Limited.
PY - 2023
Y1 - 2023
N2 - The use of liquid Pb-Bi eutectic alloy (LBE) as primary coolant and spallation target in Lead-cooled Fast Reactors (LFRs) and Accelerator Driven Systems (ADSs) presents a corrosion challenge, as structural materials can release impurities, such as Fe, Cr, Ni and Co, into the coolant. These corrosion product impurities can react with dissolved oxygen, resulting in the formation of solid oxide particles that can block the critical flow channels in the core or heat-exchanger, compromising the safety of the reactor. Of particular concern is the additional radiological risk posed by cobalt, which can undergo neutron capture and be transmuted into the γ-emitter C 27 60 o . Therefore, it is essential to accurate assess the cobalt oxide solubility product and the cobalt solubility limit. In this work, we characterized the Co-O-LBE system through an electrochemical method that involved the coulometric titration of oxygen.
AB - The use of liquid Pb-Bi eutectic alloy (LBE) as primary coolant and spallation target in Lead-cooled Fast Reactors (LFRs) and Accelerator Driven Systems (ADSs) presents a corrosion challenge, as structural materials can release impurities, such as Fe, Cr, Ni and Co, into the coolant. These corrosion product impurities can react with dissolved oxygen, resulting in the formation of solid oxide particles that can block the critical flow channels in the core or heat-exchanger, compromising the safety of the reactor. Of particular concern is the additional radiological risk posed by cobalt, which can undergo neutron capture and be transmuted into the γ-emitter C 27 60 o . Therefore, it is essential to accurate assess the cobalt oxide solubility product and the cobalt solubility limit. In this work, we characterized the Co-O-LBE system through an electrochemical method that involved the coulometric titration of oxygen.
KW - LBE
KW - LFR
KW - ADS
UR - http://www.scopus.com/inward/record.url?scp=85163362733&partnerID=8YFLogxK
U2 - 10.1149/1945-7111/acdc56
DO - 10.1149/1945-7111/acdc56
M3 - Article
AN - SCOPUS:85163362733
SN - 0013-4651
VL - 170
JO - Journal of The Electrochemical Society
JF - Journal of The Electrochemical Society
IS - 6
M1 - 061505
ER -