Preparation of thorium dioxide nanofibers by electrospinning

KUNDRÁT, Vojtěch, Zdeněk MORAVEC and Jiří PINKAS. Preparation of thorium dioxide nanofibers by electrospinning. Journal of Nuclear Materials. Amsterdam: Elsevier, 2020, vol. 534, JUN 2020, p. 1-8. ISSN 0022-3115. Available from: https://dx.doi.org/10.1016/j.jnucmat.2020.152153.

Basic information

• Original name: Preparation of thorium dioxide nanofibers by electrospinning
• Authors: KUNDRÁT, Vojtěch (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, 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/00216224:14310/20:00116139
• Organization unit: Faculty of Science
• Doi: http://dx.doi.org/10.1016/j.jnucmat.2020.152153
• UT WoS: 000535457700013
• Keywords in English: Electrospinning; Thorium dioxide; Thoria; Nanofibers; Polyvinylpyrrolidone; Polyvinyl alcohol
• Tags: CF CRYO, CF SAXS, rivok
• Tags: International impact, Reviewed

Abstract

For the first time, we report the preparation of thorium dioxide with nanofibrous morphology by the electrospinning method. Two approaches were employed with different electrospun solution compositions and inorganic precursors. Thorium nitrate with polyvinyl alcohol (PVA) as a supporting polymer was successfully electrospun from an aqueous solution resulting in green composite fibers that were calcined at 773 K to pure ThO2 nanofibers of diameter 76 +/- 25 nm. Another precursor solution was based on organic solvents and thorium acetylacetonate complex with polyvinylpyrrolidone (PVP). Green fibers were calcined at 673 K to porous nanofibers of ThO2 with an average diameter of 34 +/- 18 nm and surface area of 85 m(2) g(-1). The prepared materials were characterized by TGA-DSC, SEM, TEM, PXRD, and BET methods. (C) 2020 Elsevier B.V. All rights reserved.

Links

• LM2018127, research and development project: Name: Česká infrastruktura pro integrativní strukturní biologii (Acronym: CIISB)

Investor: Ministry of Education, Youth and Sports of the CR

• LQ1601, research and development project: Name: CEITEC 2020 (Acronym: CEITEC2020)

Investor: Ministry of Education, Youth and Sports of the CR