KUNDRÁT, Vojtěch, Aleš PATÁK and Jiří PINKAS. Preparation of ultrafine fibrous uranium dioxide by electrospinning. Journal of Nuclear Materials. Amsterdam: Elsevier, 2020, vol. 528, JAN 2020, p. 1-10. ISSN 0022-3115. Available from: https://dx.doi.org/10.1016/j.jnucmat.2019.151877.
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Basic information
Original name Preparation of ultrafine fibrous uranium dioxide by electrospinning
Authors KUNDRÁT, Vojtěch (203 Czech Republic, belonging to the institution), Aleš PATÁK (203 Czech Republic) and Jiří PINKAS (203 Czech Republic, guarantor, belonging to the institution).
Edition Journal of Nuclear Materials, Amsterdam, Elsevier, 2020, 0022-3115.
Other information
Original 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
WWW URL
Impact factor Impact factor: 2.936
RIV identification code RIV/00216224:14310/20:00115214
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1016/j.jnucmat.2019.151877
UT WoS 000503841000042
Keywords in English Electrospinning; Uranyl; Oxide; Nanofibers; Aluminum foil; Polyvinylpyrrolidone
Tags CF CRYO, CF SAXS, rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Marie Šípková, DiS., učo 437722. Changed: 30/3/2021 16:44.
Abstract
We are introducing for the first time a robust method for the preparation of uranium oxide nanofibers with extraordinary thin diameters. We have studied the preparation of U3O8 and UO2 nanofibers by the electrospinning method from uranyl acetylacetonate in mixed organic solvents. Polyvinylpyrrolidone (PVP) was used as a supporting polymer. Besides studying and optimizing the solution systems, we have also examined the effects of collector material on the properties of the fiber mat. We have found that calcination of electrospun green composite fibers deposited on aluminum foil produces U3O8 nanofibers with the lowest average diameter of 20 +/- 5 nm as their adhesion prevents fiber shrinking. We have also studied calcination of fibers on ashless paper and freestanding composite mats. Reduction of U3O8 fibers in H-2/N-2 atmosphere at various temperatures provided uranium dioxide nanofibers with an average diameter of 90 nm. (C) 2019 Elsevier B.V. All rights reserved.
Links
LM2015043, research and development projectName: Česká infrastruktura pro integrativní strukturní biologii (Acronym: CIISB)
Investor: Ministry of Education, Youth and Sports of the CR
LQ1601, research and development projectName: CEITEC 2020 (Acronym: CEITEC2020)
Investor: Ministry of Education, Youth and Sports of the CR
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