TY - JOUR
T1 - Thermochromatographic behavior of iodine in fused silica columns when evaporated from lead–bismuth eutectic
AU - Karlsson, Erik
AU - Neuhausen, Jörg
AU - Eichler, Robert
AU - Aerts, Alexander
AU - Danilov, Ivan
AU - Vögele, Alexander
AU - Türler, Andreas
N1 - Score=10
PY - 2020/11
Y1 - 2020/11
N2 - As a step toward licensing a lead–bismuth eutectic (LBE) based reactor design, the adsorption behavior of iodine evaporated from LBE on fused silica was examined. Using inert and reducing carrier gases, depositions with an adsorption enthalpy of − 95 to − 113 kJ mol ⁻¹ were observed. These depositions are compatible with a single species, tentatively identified as bismuth monoiodide, BiI. When introducing oxidizing conditions, multiple iodine species with higher volatility form, with adsorption enthalpies ranging from − 67 to − 86 kJ mol ⁻¹ . Based on an empirical correlation one of these species was identified as monatomic iodine. This work provides fundamental understanding of the LBE/iodine gaseous chemistry and related adsorption deposition behavior.
AB - As a step toward licensing a lead–bismuth eutectic (LBE) based reactor design, the adsorption behavior of iodine evaporated from LBE on fused silica was examined. Using inert and reducing carrier gases, depositions with an adsorption enthalpy of − 95 to − 113 kJ mol ⁻¹ were observed. These depositions are compatible with a single species, tentatively identified as bismuth monoiodide, BiI. When introducing oxidizing conditions, multiple iodine species with higher volatility form, with adsorption enthalpies ranging from − 67 to − 86 kJ mol ⁻¹ . Based on an empirical correlation one of these species was identified as monatomic iodine. This work provides fundamental understanding of the LBE/iodine gaseous chemistry and related adsorption deposition behavior.
KW - Lead–bismuth eutectic
KW - Iodine
KW - Accelerator driven sysem
KW - Fission product
KW - Thermochromatography
UR - https://ecm.sckcen.be/OTCS/llisapi.dll/overview/42753546
U2 - 10.1007/s10967-020-07420-1
DO - 10.1007/s10967-020-07420-1
M3 - Article
SN - 0236-5731
VL - 326
SP - 1249
EP - 1258
JO - Journal of Radioanalytical and Nuclear Chemistry
JF - Journal of Radioanalytical and Nuclear Chemistry
IS - 2
ER -