Nanofibers of solid-solution thorium(IV)-uranium(IV) oxides by
electrospinning

J 2022

Nanofibers of solid-solution thorium(IV)-uranium(IV) oxides by electrospinning

KUNDRÁT, Vojtěch, Vít VYKOUKAL, Zdeněk MORAVEC and Jiří PINKAS

Basic information

Original name

Nanofibers of solid-solution thorium(IV)-uranium(IV) oxides by electrospinning

Authors

KUNDRÁT, Vojtěch (203 Czech Republic, belonging to the institution), Vít VYKOUKAL (203 Czech Republic, belonging to the institution), Zdeněk MORAVEC (203 Czech Republic, belonging to the institution) and Jiří PINKAS (203 Czech Republic, guarantor, belonging to the institution)

Edition

Journal of Nuclear Materials, Elsevier B.V. 2022, 0022-3115

Other information

Language

English

Type of outcome

Article in a journal

Field of Study

10402 Inorganic and nuclear chemistry

Country of publisher

Netherlands

Confidentiality degree

is not subject to a state or trade secret

References:

URL

Impact factor

Impact factor: 3.100

RIV identification code

RIV/00216224:14310/22:00125903

Organization unit

Faculty of Science

DOI

http://dx.doi.org/10.1016/j.jnucmat.2022.153731

UT WoS

000805635200001

Keywords in English

Electrospinning; Thorium; Uranium; Mixed oxide; Nanofibers; Polyvinylpyrrolidone

Abstract

V originále

Thorium-uranium dioxide nanofibers were prepared in a three-step process. Green composite microfibers were electrospun from solutions composed of Th(IV) and U(VI) acetylacetonate complexes in different molar ratios, polyvinylpyrrolidone, and acetone/ethanol mixed solvents. The second step converted the green composite fibers by calcination in the air to mixed Th/U oxide fibers. In the final step, the heat treatment under forming gas provided the nanofibers with diameters of 28−46 nm composed of solid solutions ThxU1−xO2 (x = 1, 0.75, 0.5, 0.25, 0). The XRD and STEM-EDS analyses of the prepared Th/U mixed oxide nanofibers attested to their atomic homogeneity.

Links

90110, large research infrastructures

Name: CzechNanoLab

90127, large research infrastructures

Name: CIISB II

Citovat

KUNDRÁT, Vojtěch, Vít VYKOUKAL, Zdeněk MORAVEC and Jiří PINKAS. Nanofibers of solid-solution thorium(IV)-uranium(IV) oxides by electrospinning. Journal of Nuclear Materials. Elsevier B.V., 2022, vol. 566, August, p. 1-8. ISSN 0022-3115. Available from: https://dx.doi.org/10.1016/j.jnucmat.2022.153731.

@article{1857037,
   author = {Kundrát, Vojtěch and Vykoukal, Vít and Moravec, Zdeněk and Pinkas, Jiří},
   article_number = {August},
   doi = {http://dx.doi.org/10.1016/j.jnucmat.2022.153731},
   keywords = {Electrospinning; Thorium; Uranium; Mixed oxide; Nanofibers; Polyvinylpyrrolidone},
   language = {eng},
   issn = {0022-3115},
   journal = {Journal of Nuclear Materials},
   title = {Nanofibers of solid-solution thorium(IV)-uranium(IV) oxides by electrospinning},
   url = {https://www.sciencedirect.com/science/article/pii/S0022311522002197?via%3Dihub},
   volume = {566},
   year = {2022}
}

TY  - JOUR
ID  - 1857037
AU  - Kundrát, Vojtěch - Vykoukal, Vít - Moravec, Zdeněk - Pinkas, Jiří
PY  - 2022
TI  - Nanofibers of solid-solution thorium(IV)-uranium(IV) oxides by electrospinning
JF  - Journal of Nuclear Materials
VL  - 566
IS  - August
SP  - 1-8
EP  - 1-8
PB  - Elsevier B.V.
SN  - 00223115
KW  - Electrospinning
KW  - Thorium
KW  - Uranium
KW  - Mixed oxide
KW  - Nanofibers
KW  - Polyvinylpyrrolidone
UR  - https://www.sciencedirect.com/science/article/pii/S0022311522002197?via%3Dihub
N2  - Thorium-uranium dioxide nanofibers were prepared in a three-step process. Green composite microfibers were electrospun from solutions composed of Th(IV) and U(VI) acetylacetonate complexes in different molar ratios, polyvinylpyrrolidone, and acetone/ethanol mixed solvents. The second step converted the green composite fibers by calcination in the air to mixed Th/U oxide fibers. In the final step, the heat treatment under forming gas provided the nanofibers with diameters of 28−46 nm composed of solid solutions ThxU1−xO2 (x = 1, 0.75, 0.5, 0.25, 0). The XRD and STEM-EDS analyses of the prepared Th/U mixed oxide nanofibers attested to their atomic homogeneity.
ER  -

KUNDRÁT, Vojtěch, Vít VYKOUKAL, Zdeněk MORAVEC and Jiří PINKAS. Nanofibers of solid-solution thorium(IV)-uranium(IV) oxides by electrospinning. \textit{Journal of Nuclear Materials}. Elsevier B.V., 2022, vol.~566, August, p.~1-8. ISSN~0022-3115. Available from: https://dx.doi.org/10.1016/j.jnucmat.2022.153731.

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