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

• Autorzy: Brykala M. , Rogowski M. , Olczak T.

Identyfikatory

DOI

10.1515/nuka-2015-0122

• Konferencja: International Workshop “Towards safe and optimized separation processes, a challenge for nuclear scientists” (FP7 European Collaborative Project SACSESS) (22-24.04.2015 ; Warsaw, Poland)
• Języki publikacji: EN

Abstrakty

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 identifi ed by X-ray diffraction. TG-DTG was used also as a method for determining of carbon residues in the samples.

Słowa kluczowe

EN

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

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2015
• Tom: Vol. 60, No. 4, part 2
• Strony: 921--925
• Opis fizyczny: Bibliogr. 24 poz., rys.

Twórcy

autor

Brykala M.

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

autor

Rogowski M.

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

autor

Olczak T.

• 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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