<abstract xmlns="http://www.w3.org/1999/xhtml"><p> 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.</p></abstract>

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.

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

Centre for Radiochemistry and Nuclear Chemistry, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: +48 22 504 1054, Fax: +48 22 811 1917,

Centre for Radiochemistry and Nuclear Chemistry, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: +48 22 504 1054, Fax: +48 22 811 1917

Nukleonika

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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...

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

Pubblicato online: 30 dic 2015

Pagine: 921 - 925

Ricevuto: 18 giu 2015

Accettato: 05 set 2015

DOI: https://doi.org/10.1515/nuka-2015-0122

Parole chiave
carbonization, complex sol-gel process (CSGP), uranium carbide, uranyl-ascorbate complex

© by Marcin Rogowski

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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

Pubblicato online: 30 dic 2015

Pagine: 921 - 925

Ricevuto: 18 giu 2015

Accettato: 05 set 2015

DOI: https://doi.org/10.1515/nuka-2015-0122

Parole chiavecarbonization, complex sol-gel process (CSGP), uranium carbide, uranyl-ascorbate complex

© by Marcin Rogowski

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Parole chiave
carbonization, complex sol-gel process (CSGP), uranium carbide, uranyl-ascorbate complex