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Ruthenium volatilisation from reprocessed spent nuclear fuel - Studying the baseline thermodynamics of Ru(III)

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Ruthenium volatilisation from reprocessed spent nuclear fuel - Studying the baseline thermodynamics of Ru(III). / Johal, Sukhraaj K.; Boxall, Colin; Gregson, Colin et al.
In: ECS Transactions, Vol. 66, 2015, p. 31-42.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Johal, SK, Boxall, C, Gregson, C & Steele, CJ 2015, 'Ruthenium volatilisation from reprocessed spent nuclear fuel - Studying the baseline thermodynamics of Ru(III)', ECS Transactions, vol. 66, pp. 31-42. https://doi.org/10.1149/06621.0031ecst

APA

Johal, S. K., Boxall, C., Gregson, C., & Steele, C. J. (2015). Ruthenium volatilisation from reprocessed spent nuclear fuel - Studying the baseline thermodynamics of Ru(III). ECS Transactions, 66, 31-42. https://doi.org/10.1149/06621.0031ecst

Vancouver

Johal SK, Boxall C, Gregson C, Steele CJ. Ruthenium volatilisation from reprocessed spent nuclear fuel - Studying the baseline thermodynamics of Ru(III). ECS Transactions. 2015;66:31-42. doi: 10.1149/06621.0031ecst

Author

Johal, Sukhraaj K. ; Boxall, Colin ; Gregson, Colin et al. / Ruthenium volatilisation from reprocessed spent nuclear fuel - Studying the baseline thermodynamics of Ru(III). In: ECS Transactions. 2015 ; Vol. 66. pp. 31-42.

Bibtex

@article{7b204ce191054d648046727b4cf659aa,
title = "Ruthenium volatilisation from reprocessed spent nuclear fuel - Studying the baseline thermodynamics of Ru(III)",
abstract = "Ruthenium is a fission product possessed of two relatively long lived isotopes, Ru and Ru, both of which form part of the Highly Active (HA) waste raffinate during spent nuclear fuel reprocessing. During reprocessing ruthenium, which may be in the form of the RuNO+ complex, encounters temperatures conducive to volatilization. Due rutheium's high specific radioactivity it is important to understand the mechanism by which volatilisation occurs. Here we use combined CV, RDE and electrochemical microgravimetry experiments in a study of the the RuCl3 system for the first time. We do this in the interest of establishing NO-free Ru(III) baseline behaviour so as to support future studies on NO complexed ruthenium. Using wide aqueous solvent window carbon electrodes we have observed discrete oxidations to a solution phase Ru(III)-Ru(IV)-Ru(III) trimer, to solid RuO2 and volatile RuO4. We have also observed and assigned discrete reductions of solid RuO2 back to Ru(III) and Ru(III) reduction to ruthenium metal.",
author = "Johal, {Sukhraaj K.} and Colin Boxall and Colin Gregson and Steele, {Carl J.}",
note = "{\textcopyright} 2015 ECS - The Electrochemical Society; Symposium on Electrochemical Engineering General Session - 227th ECS Meeting ; Conference date: 24-05-2015 Through 28-05-2015",
year = "2015",
doi = "10.1149/06621.0031ecst",
language = "English",
volume = "66",
pages = "31--42",
journal = "ECS Transactions",
issn = "1938-6737",
publisher = "Electrochemical Society, Inc.",

}

RIS

TY - JOUR

T1 - Ruthenium volatilisation from reprocessed spent nuclear fuel - Studying the baseline thermodynamics of Ru(III)

AU - Johal, Sukhraaj K.

AU - Boxall, Colin

AU - Gregson, Colin

AU - Steele, Carl J.

N1 - © 2015 ECS - The Electrochemical Society

PY - 2015

Y1 - 2015

N2 - Ruthenium is a fission product possessed of two relatively long lived isotopes, Ru and Ru, both of which form part of the Highly Active (HA) waste raffinate during spent nuclear fuel reprocessing. During reprocessing ruthenium, which may be in the form of the RuNO+ complex, encounters temperatures conducive to volatilization. Due rutheium's high specific radioactivity it is important to understand the mechanism by which volatilisation occurs. Here we use combined CV, RDE and electrochemical microgravimetry experiments in a study of the the RuCl3 system for the first time. We do this in the interest of establishing NO-free Ru(III) baseline behaviour so as to support future studies on NO complexed ruthenium. Using wide aqueous solvent window carbon electrodes we have observed discrete oxidations to a solution phase Ru(III)-Ru(IV)-Ru(III) trimer, to solid RuO2 and volatile RuO4. We have also observed and assigned discrete reductions of solid RuO2 back to Ru(III) and Ru(III) reduction to ruthenium metal.

AB - Ruthenium is a fission product possessed of two relatively long lived isotopes, Ru and Ru, both of which form part of the Highly Active (HA) waste raffinate during spent nuclear fuel reprocessing. During reprocessing ruthenium, which may be in the form of the RuNO+ complex, encounters temperatures conducive to volatilization. Due rutheium's high specific radioactivity it is important to understand the mechanism by which volatilisation occurs. Here we use combined CV, RDE and electrochemical microgravimetry experiments in a study of the the RuCl3 system for the first time. We do this in the interest of establishing NO-free Ru(III) baseline behaviour so as to support future studies on NO complexed ruthenium. Using wide aqueous solvent window carbon electrodes we have observed discrete oxidations to a solution phase Ru(III)-Ru(IV)-Ru(III) trimer, to solid RuO2 and volatile RuO4. We have also observed and assigned discrete reductions of solid RuO2 back to Ru(III) and Ru(III) reduction to ruthenium metal.

U2 - 10.1149/06621.0031ecst

DO - 10.1149/06621.0031ecst

M3 - Journal article

AN - SCOPUS:84940397501

VL - 66

SP - 31

EP - 42

JO - ECS Transactions

JF - ECS Transactions

SN - 1938-6737

T2 - Symposium on Electrochemical Engineering General Session - 227th ECS Meeting

Y2 - 24 May 2015 through 28 May 2015

ER -