Rate-Limiting factors in oxygen transfer through electrochemical oxygen pump in liquid LBE

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Rate-Limiting factors in oxygen transfer through electrochemical oxygen pump in liquid LBE. / Lim, Jun; Manfredi, Gabriele; Aerts, Alexander.

In: Journal of The Electrochemical Society, Vol. 166, 02.12.2019, p. E542-E546.

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@article{a730fa9d9a744dd5ae7f52a016724f56,
title = "Rate-Limiting factors in oxygen transfer through electrochemical oxygen pump in liquid LBE",
abstract = "This paper presents the polarization characteristics of electrochemical oxygen pumps (EOPs) during transfer oxygen from/to liquid lead-bismuth eutectic (LBE). A thick-walled (1.5 mm) one-end closed tube of yttria partially stabilized zirconia was used as a solid electrolyte. Three different electrode of air/LSM (lanthanum strontiummanganite), air/LSCF (lanthanum strontium cobalt ferrite) and LBE/PbO were compared. The polarization characteristics were obtained by linear sweep voltammetry in LBE at 450°C at various dissolved oxygen concentrations in LBE. The EOP with LBE/PbO electrode showed negligible activation polarization compared to EOPs with other electrodes. However, with the LBE/PbO electrode a significant concentration polarization occurred at low current density, limiting its capacity for oxygen transfer from EOP to LBE. The oxygen transfer from LBE to EOP is limited by oxygen mass transfer from the LBE bulk to the solid electrolyte surface of EOPs, especially under low dissolved oxygen condition.",
keywords = "Solid-State Topics: General , electrochemical oxygen pump, lead-bismuth eutectic, polarization",
author = "Jun Lim and Gabriele Manfredi and Alexander Aerts",
note = "Score=10",
year = "2019",
month = "12",
day = "2",
doi = "10.1149/2.0271916jes",
language = "English",
volume = "166",
pages = "E542--E546",
journal = "Journal of The Electrochemical Society",
issn = "0013-4651",
publisher = "ECS - The Electrochemical Society",

}

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TY - JOUR

T1 - Rate-Limiting factors in oxygen transfer through electrochemical oxygen pump in liquid LBE

AU - Lim, Jun

AU - Manfredi, Gabriele

AU - Aerts, Alexander

N1 - Score=10

PY - 2019/12/2

Y1 - 2019/12/2

N2 - This paper presents the polarization characteristics of electrochemical oxygen pumps (EOPs) during transfer oxygen from/to liquid lead-bismuth eutectic (LBE). A thick-walled (1.5 mm) one-end closed tube of yttria partially stabilized zirconia was used as a solid electrolyte. Three different electrode of air/LSM (lanthanum strontiummanganite), air/LSCF (lanthanum strontium cobalt ferrite) and LBE/PbO were compared. The polarization characteristics were obtained by linear sweep voltammetry in LBE at 450°C at various dissolved oxygen concentrations in LBE. The EOP with LBE/PbO electrode showed negligible activation polarization compared to EOPs with other electrodes. However, with the LBE/PbO electrode a significant concentration polarization occurred at low current density, limiting its capacity for oxygen transfer from EOP to LBE. The oxygen transfer from LBE to EOP is limited by oxygen mass transfer from the LBE bulk to the solid electrolyte surface of EOPs, especially under low dissolved oxygen condition.

AB - This paper presents the polarization characteristics of electrochemical oxygen pumps (EOPs) during transfer oxygen from/to liquid lead-bismuth eutectic (LBE). A thick-walled (1.5 mm) one-end closed tube of yttria partially stabilized zirconia was used as a solid electrolyte. Three different electrode of air/LSM (lanthanum strontiummanganite), air/LSCF (lanthanum strontium cobalt ferrite) and LBE/PbO were compared. The polarization characteristics were obtained by linear sweep voltammetry in LBE at 450°C at various dissolved oxygen concentrations in LBE. The EOP with LBE/PbO electrode showed negligible activation polarization compared to EOPs with other electrodes. However, with the LBE/PbO electrode a significant concentration polarization occurred at low current density, limiting its capacity for oxygen transfer from EOP to LBE. The oxygen transfer from LBE to EOP is limited by oxygen mass transfer from the LBE bulk to the solid electrolyte surface of EOPs, especially under low dissolved oxygen condition.

KW - Solid-State Topics: General

KW - electrochemical oxygen pump

KW - lead-bismuth eutectic

KW - polarization

UR - http://ecm.sckcen.be/OTCS/llisapi.dll/open/36437457

U2 - 10.1149/2.0271916jes

DO - 10.1149/2.0271916jes

M3 - Article

VL - 166

SP - E542-E546

JO - Journal of The Electrochemical Society

JF - Journal of The Electrochemical Society

SN - 0013-4651

ER -

ID: 5822148