Accès ouvert
2026
article
OpenAlex
Amanda R. Lawter, Gemma G. Clark, Nancy Escobedo, Jeff Bonnett et autres
A contaminant of concern in nuclear waste, iodine must be immobilized in an iodine waste form (IWF) prior to long-term disposal. A conceptual corrosion release model (CCRM) is required to provide iodine release rates in performance modeling of nuclear waste disposal repositories. …
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Accès ouvert
2025
article
OpenAlex
José Marcial, Julian Chesnutt, James J. Neeway, Eshchar Gichon et autres
Approximately 200,000 m 3 of legacy radioactive waste from plutonium production stored at U.S. Department of Energy’s Hanford site will be immobilized in glass for disposal. The glass must limit radionuclide release into the environment for thousands of years, which is challenging …
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2025
article
OpenAlex
Seungrag Choi, José Marcial, James J. Neeway, Carolyn I. Pearce et autres
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Accès ouvert
2025
preprint
OpenAlex
José Marcial, Julian Chesnutt, James J. Neeway, Eschar Gichon et autres
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2024
article
OpenAlex
Ziheng Shen, Alexander I. Wiechert, Seungrag Choi, Austin Ladshaw et autres
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Accès ouvert
2024
preprint
OpenAlex
Seungrag Choi, José Marcial, James J. Neeway, Carolyn I. Pearce et autres
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2022
report
OpenAlex
Matthew S. Fountain, R. Matthew Asmussen, Brian J. Riley, Saehwa Chong et autres
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Accès ouvert
2022
report
OpenAlex
Siqi Tang, Seungrag Choi, Lawrence L. Tavlarides, Ziheng Shen et autres
In nuclear waste reprocessing, radioactive iodine is released in both organic and inorganic forms into off-gas streams. Due to its properties of long half-life and potential accumulation in human bodies, radioactive iodine is required to be removed from off-gas streams by the …
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Accès ouvert
2022
article
OpenAlex
Ziheng Shen, Alexander I. Wiechert, Seungrag Choi, Lawrence L. Tavlarides et autres
While it is considered a promising adsorbent for radioiodine capture in spent nuclear fuel reprocessing off-gas, silver functionalized silica aerogel (Ag 0 -aerogel) experiences a capacity loss when exposed to other off-gas components (O 2, H 2 O, NO, and NO 2 …
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Accès ouvert
2022
article
OpenAlex
Ziheng Shen, Alexander I. Wiechert, Seungrag Choi, Austin Ladshaw et autres
us
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Accès ouvert
2022
preprint
OpenAlex
Seungrag Choi, Yue Nan, Lawrence L. Tavlarides
Aging impact on silver-functionalized silica aerogel (Ag 0 -aerogel) in the off-gas streams including dry air, humid air, 1% NO/N 2 , and 2% NO 2 /dry air were studied. Aged Ag 0 -aerogel was prepared through a continuous-flow aging system by …
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Accès ouvert
2021
article
OpenAlex
Seungrag Choi, Yue Nan, Lawrence L. Tavlarides
Aging impact on silver-functionalized silica aerogel (Ag0-aerogel) in the off-gas streams including dry air, humid air, 1% NO/N2, and 2% NO2/dry air were studied. Aged Ag0-aerogel was prepared through a continuous-flow aging system by exposing Ag0-aerogel (unaged) to the off-gas streams at …
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