Uranium hydroxide/oxide deposits on uranyl reduction

We clarified the chemical reaction of deposits following the reduction of uranyl ions (U(VI)O(2)(2+)) from the results of electrochemical quartz crystal microbalance, impedance spectra, and X-ray absorption fine structure measurements. We propose the following deposition mechanism: (1) U(IV) is form...

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Detalles Bibliográficos
Autores principales: Ouchi, Kazuki, Matsumura, Daiju, Tsuji, Takuya, Kobayashi, Tohru, Otobe, Haruyoshi, Kitatsuji, Yoshihiro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2023
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10230268/
https://www.ncbi.nlm.nih.gov/pubmed/37266507
http://dx.doi.org/10.1039/d3ra02899b
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author Ouchi, Kazuki
Matsumura, Daiju
Tsuji, Takuya
Kobayashi, Tohru
Otobe, Haruyoshi
Kitatsuji, Yoshihiro
author_facet Ouchi, Kazuki
Matsumura, Daiju
Tsuji, Takuya
Kobayashi, Tohru
Otobe, Haruyoshi
Kitatsuji, Yoshihiro
author_sort Ouchi, Kazuki
collection PubMed
description We clarified the chemical reaction of deposits following the reduction of uranyl ions (U(VI)O(2)(2+)) from the results of electrochemical quartz crystal microbalance, impedance spectra, and X-ray absorption fine structure measurements. We propose the following deposition mechanism: (1) U(IV) is formed by the disproportionation of U(V), (2) U(IV) forms U(IV) hydroxide deposits, and (3) finally, the hydroxide deposits change to U(IV) oxide, which generally have a larger electrical resistance than the hydroxide form.
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spelling pubmed-102302682023-06-01 Uranium hydroxide/oxide deposits on uranyl reduction Ouchi, Kazuki Matsumura, Daiju Tsuji, Takuya Kobayashi, Tohru Otobe, Haruyoshi Kitatsuji, Yoshihiro RSC Adv Chemistry We clarified the chemical reaction of deposits following the reduction of uranyl ions (U(VI)O(2)(2+)) from the results of electrochemical quartz crystal microbalance, impedance spectra, and X-ray absorption fine structure measurements. We propose the following deposition mechanism: (1) U(IV) is formed by the disproportionation of U(V), (2) U(IV) forms U(IV) hydroxide deposits, and (3) finally, the hydroxide deposits change to U(IV) oxide, which generally have a larger electrical resistance than the hydroxide form. The Royal Society of Chemistry 2023-05-31 /pmc/articles/PMC10230268/ /pubmed/37266507 http://dx.doi.org/10.1039/d3ra02899b Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Ouchi, Kazuki
Matsumura, Daiju
Tsuji, Takuya
Kobayashi, Tohru
Otobe, Haruyoshi
Kitatsuji, Yoshihiro
Uranium hydroxide/oxide deposits on uranyl reduction
title Uranium hydroxide/oxide deposits on uranyl reduction
title_full Uranium hydroxide/oxide deposits on uranyl reduction
title_fullStr Uranium hydroxide/oxide deposits on uranyl reduction
title_full_unstemmed Uranium hydroxide/oxide deposits on uranyl reduction
title_short Uranium hydroxide/oxide deposits on uranyl reduction
title_sort uranium hydroxide/oxide deposits on uranyl reduction
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10230268/
https://www.ncbi.nlm.nih.gov/pubmed/37266507
http://dx.doi.org/10.1039/d3ra02899b
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AT tsujitakuya uraniumhydroxideoxidedepositsonuranylreduction
AT kobayashitohru uraniumhydroxideoxidedepositsonuranylreduction
AT otobeharuyoshi uraniumhydroxideoxidedepositsonuranylreduction
AT kitatsujiyoshihiro uraniumhydroxideoxidedepositsonuranylreduction

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