Carbonization of solid uranyl-ascorbate gel as an indirect step of uranium carbide synthesis

• Authors: Marcin Brykala , Marcin Rogowski , Tadeusz Olczak
• Languages of publication: EN

Abstracts

EN

The studies of the synthesis of uranium carbide from uranyl-ascorbate gels using the complex sol-gel process (CSGP) have been carried out. The synthesis of uranyl-ascorbate mixture as liquid sol from uranium trioxide and ascorbic acid and solid gel by extraction of water from sol were carefully examined. Ascorbic acid was used as a complexing agent in complex sol-gel process and as a carbon source. The crucial step to obtain final uranium carbides from the aforementioned substrates is the carbonization process. The thermal behavior of ascorbic acid and uranyl-ascorbate gels in a nitrogen atmosphere in the temperature range of 25-900°C were investigated using TG-DTG. Furthermore, the products of the carbonization of uranyl-ascorbate gels in nitrogen, argon and vacuum atmosphere were identified by X-ray diffraction. TG-DTG was used also as a method for determining of carbon residues in the samples.

Keywords

EN

carbonization; complex sol-gel process (CSGP); uranium carbide; uranyl-ascorbate complex

• Publisher: De Gruyter Open
• Journal: Nukleonika
• Year: 2015
• Volume: 60
• Issue: 4
• Pages: 921-925

Dates

published

1 - 12 - 2015

received

18 - 6 - 2015

online

30 - 12 - 2015

accepted

5 - 9 - 2015

Contributors

author

Marcin Brykala

• Centre for Radiochemistry and Nuclear Chemistry, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: [phone], Fax: [phone],

author

Marcin Rogowski

• Centre for Radiochemistry and Nuclear Chemistry, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: [phone], Fax: [phone]

author

Tadeusz Olczak

• Centre for Radiochemistry and Nuclear Chemistry, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: [phone], Fax: [phone]

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Identifiers

DOI

10.1515/nuka-2015-0122