Effect of Annealing on Structural and Thermodynamic Properties of ThSiO4-ErPO4Xenotime Solid Solution

Anna Shelyug; Mohamed Ruwaid Rafiuddin; Adel Mesbah; Nicolas Clavier; Stéphanie Szenknect; Nicolas Dacheux; Xiaofeng Guo; Alexandra Navrotsky

doi:10.1021/acs.inorgchem.1c01137

Effect of Annealing on Structural and Thermodynamic Properties of ThSiO₄-ErPO₄Xenotime Solid Solution

Anna Shelyug, Mohamed Ruwaid Rafiuddin, Adel Mesbah, Nicolas Clavier, Stéphanie Szenknect, Nicolas Dacheux, Xiaofeng Guo, Alexandra Navrotsky

Research output: Contribution to journal › Article › peer-review

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Abstract

The effect of annealing on structural and thermochemical properties of a thorite-xenotime solid solution Th1-xErx(SiO4)1-x(PO4)x was assessed. The samples synthesized at low temperatures and stored at room temperature for 2 years retained their tetragonal structures. This structure was also maintained after heating to 1100 °C. During annealing, the structure lost water and exsolved some thorianite phases. The thermodynamic parameters did not change much after annealing, suggesting that xenotime was not a low-temperature metastable phase but rather a stable structure able to withstand elevated temperatures regardless of the thorium content. The solid solution exhibited subregular behavior with the Margules function W(x) = (73.1 ± 20.1) - (125.7 ± 49.8)·x.

Original language	English
Pages (from-to)	12020-12028
Number of pages	9
Journal	Inorganic Chemistry
Volume	60
Issue number	16
Early online date	30 Jul 2021
DOIs	https://doi.org/10.1021/acs.inorgchem.1c01137
Publication status	Published - 16 Aug 2021
Externally published	Yes

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title = "Effect of Annealing on Structural and Thermodynamic Properties of ThSiO4-ErPO4Xenotime Solid Solution",

abstract = "The effect of annealing on structural and thermochemical properties of a thorite-xenotime solid solution Th1-xErx(SiO4)1-x(PO4)x was assessed. The samples synthesized at low temperatures and stored at room temperature for 2 years retained their tetragonal structures. This structure was also maintained after heating to 1100 °C. During annealing, the structure lost water and exsolved some thorianite phases. The thermodynamic parameters did not change much after annealing, suggesting that xenotime was not a low-temperature metastable phase but rather a stable structure able to withstand elevated temperatures regardless of the thorium content. The solid solution exhibited subregular behavior with the Margules function W(x) = (73.1 ± 20.1) - (125.7 ± 49.8)·x.",

keywords = "Annealing, Silicates, Temperature, Thoria",

author = "Anna Shelyug and Rafiuddin, {Mohamed Ruwaid} and Adel Mesbah and Nicolas Clavier and St{\'e}phanie Szenknect and Nicolas Dacheux and Xiaofeng Guo and Alexandra Navrotsky",

note = "Funding Information: The experimental work was supported as part of the Materials Science of Actinides, the Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences under Award Number DE-SC0001089. The last stages of data analysis and manuscript preparation were supported by the U.S. Department of Energy, Office of Basic Energy Sciences, grant DE-FG02-97ER14749. A.S. was supported by state assignment for the Institute of Solid State Chemistry of the Ural Branch of Russian Academy of Sciences (No. AAAA-A19-119031890029-7). X.G. acknowledges the support through the institutional funds from the Department of Chemistry and the New Faculty Seed Grant from ORAP at the Washington State University. The authors would like to thank the French National Research Agency (ANR JCJC-X-MAS; Project #ANR-17-CE06-0004) for the financial support. Publisher Copyright: {\textcopyright} 2021 American Chemical Society. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",

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doi = "10.1021/acs.inorgchem.1c01137",

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AU - Shelyug, Anna

AU - Rafiuddin, Mohamed Ruwaid

AU - Mesbah, Adel

AU - Clavier, Nicolas

AU - Szenknect, Stéphanie

AU - Dacheux, Nicolas

AU - Guo, Xiaofeng

AU - Navrotsky, Alexandra

N1 - Funding Information: The experimental work was supported as part of the Materials Science of Actinides, the Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences under Award Number DE-SC0001089. The last stages of data analysis and manuscript preparation were supported by the U.S. Department of Energy, Office of Basic Energy Sciences, grant DE-FG02-97ER14749. A.S. was supported by state assignment for the Institute of Solid State Chemistry of the Ural Branch of Russian Academy of Sciences (No. AAAA-A19-119031890029-7). X.G. acknowledges the support through the institutional funds from the Department of Chemistry and the New Faculty Seed Grant from ORAP at the Washington State University. The authors would like to thank the French National Research Agency (ANR JCJC-X-MAS; Project #ANR-17-CE06-0004) for the financial support. Publisher Copyright: © 2021 American Chemical Society. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2021/8/16

Y1 - 2021/8/16

N2 - The effect of annealing on structural and thermochemical properties of a thorite-xenotime solid solution Th1-xErx(SiO4)1-x(PO4)x was assessed. The samples synthesized at low temperatures and stored at room temperature for 2 years retained their tetragonal structures. This structure was also maintained after heating to 1100 °C. During annealing, the structure lost water and exsolved some thorianite phases. The thermodynamic parameters did not change much after annealing, suggesting that xenotime was not a low-temperature metastable phase but rather a stable structure able to withstand elevated temperatures regardless of the thorium content. The solid solution exhibited subregular behavior with the Margules function W(x) = (73.1 ± 20.1) - (125.7 ± 49.8)·x.

AB - The effect of annealing on structural and thermochemical properties of a thorite-xenotime solid solution Th1-xErx(SiO4)1-x(PO4)x was assessed. The samples synthesized at low temperatures and stored at room temperature for 2 years retained their tetragonal structures. This structure was also maintained after heating to 1100 °C. During annealing, the structure lost water and exsolved some thorianite phases. The thermodynamic parameters did not change much after annealing, suggesting that xenotime was not a low-temperature metastable phase but rather a stable structure able to withstand elevated temperatures regardless of the thorium content. The solid solution exhibited subregular behavior with the Margules function W(x) = (73.1 ± 20.1) - (125.7 ± 49.8)·x.

KW - Annealing

KW - Silicates

KW - Temperature

KW - Thoria

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VL - 60

SP - 12020

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JO - Inorganic Chemistry

JF - Inorganic Chemistry

SN - 0020-1669

IS - 16

ER -

Effect of Annealing on Structural and Thermodynamic Properties of ThSiO₄-ErPO₄Xenotime Solid Solution

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