Chemical speciation of iodine evaporated from liquid lead–bismuth eutectic investigated by thermosublimatography

Lu Liu; Vladislav Zobnin; Ivan Zivadinovic; Robert Eichler; Alexander Vögele; Dominik Herrmann; Alexander Aerts; Patrick Steinegger; Jörg Neuhausen

doi:10.1007/s10967-025-10246-4

Chemical speciation of iodine evaporated from liquid lead–bismuth eutectic investigated by thermosublimatography

Lu Liu
, Vladislav Zobnin
, Ivan Zivadinovic
, Robert Eichler
, Alexander Vögele
, Dominik Herrmann
, Alexander Aerts
, Patrick Steinegger
, Jörg Neuhausen

TRT-Operations

Research output › peer-review

Abstract

This study investigates the evaporation and deposition of iodine from lead–bismuth eutectic (LBE) systems with iodine mole fractions of 10^–5 to 10^–3, crucial for the safety of LBE-cooled nuclear reactors. Combining thermosublimatography, morphological analysis and thermodynamic calculations, it identifies PbI₂ and BiI₃ as the two primarily deposited species, while revealing BiI disproportionation. This work provides novel insights into iodine speciation, emphasizing its importance for the safety of LBE-cooled reactors and gives input for advancing experimental setups and modeling approaches for complex nuclear systems.

Original language	English
Pages (from-to)	5201-5216
Number of pages	16
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	334
Issue number	7
DOIs	https://doi.org/10.1007/s10967-025-10246-4
State	Published - Jul 2025

ASJC Scopus subject areas

Analytical Chemistry
Nuclear Energy and Engineering
Radiology Nuclear Medicine and imaging
Pollution
Spectroscopy
Public Health, Environmental and Occupational Health
Health, Toxicology and Mutagenesis

Access to Document

10.1007/s10967-025-10246-4

Cite this

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title = "Chemical speciation of iodine evaporated from liquid lead–bismuth eutectic investigated by thermosublimatography",

abstract = "This study investigates the evaporation and deposition of iodine from lead–bismuth eutectic (LBE) systems with iodine mole fractions of 10–5 to 10–3, crucial for the safety of LBE-cooled nuclear reactors. Combining thermosublimatography, morphological analysis and thermodynamic calculations, it identifies PbI2 and BiI3 as the two primarily deposited species, while revealing BiI disproportionation. This work provides novel insights into iodine speciation, emphasizing its importance for the safety of LBE-cooled reactors and gives input for advancing experimental setups and modeling approaches for complex nuclear systems.",

keywords = "Chemical speciation, Evaporation, Iodine, Lead–bismuth eutectic, Thermosublimatography",

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T1 - Chemical speciation of iodine evaporated from liquid lead–bismuth eutectic investigated by thermosublimatography

AU - Liu, Lu

AU - Zobnin, Vladislav

AU - Zivadinovic, Ivan

AU - Eichler, Robert

AU - Vögele, Alexander

AU - Herrmann, Dominik

AU - Aerts, Alexander

AU - Steinegger, Patrick

AU - Neuhausen, Jörg

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AB - This study investigates the evaporation and deposition of iodine from lead–bismuth eutectic (LBE) systems with iodine mole fractions of 10–5 to 10–3, crucial for the safety of LBE-cooled nuclear reactors. Combining thermosublimatography, morphological analysis and thermodynamic calculations, it identifies PbI2 and BiI3 as the two primarily deposited species, while revealing BiI disproportionation. This work provides novel insights into iodine speciation, emphasizing its importance for the safety of LBE-cooled reactors and gives input for advancing experimental setups and modeling approaches for complex nuclear systems.

KW - Chemical speciation

KW - Evaporation

KW - Iodine

KW - Lead–bismuth eutectic

KW - Thermosublimatography

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