<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Intercalation of sodium into the carbon lining of aluminium electrolysis cells is a common cause of its failure. The effect of sodium on model carbon cathode materials was studied in the system with high activity of sodium (molten NaF–NaCl system). Commercially available carbon materials such as semigraphite and electrographite (Kompozitum, Topol’čany, SK) were chosen as model cathodes. The experiments were carried out at a constant cathode current density of 0.7 A cm<sup>−2</sup>. A modified Rapoport test was developed and used to study the expansion of the chosen types of carbon materials.</p></abstract>

Intercalation of sodium into the carbon lining of aluminium electrolysis cells is a common cause of its failure. The effect of sodium on model carbon cathode materials was studied in the system with high activity of sodium (molten NaF–NaCl system). Commercially available carbon materials such as semigraphite and electrographite (Kompozitum, Topol’čany, SK) were chosen as model cathodes. The experiments were carried out at a constant cathode current density of 0.7 A cm−2. A modified Rapoport test was developed and used to study the expansion of the chosen types of carbon materials.

Measurement of the changes of carbonaceous materials caused by intercalation of sodium deposited from molten salts electrolyte

Slovak University of Technology in Bratislava, Institute of Inorganic Chemistry, Technology and Materials, Radlinského 9, SK – 812 37 Bratislava, Slovakia

Norwegian University of Science and Technology, Department of Materials Science and Engineering, N – 7491 Trondheim, Norway

Acta Chimica Slovaca

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Intercalation of sodium into the carbon lining of aluminium electrolysis cells is a common cause of its failure. The effect of sodium on model carbon cathode...

Measurement of the changes of carbonaceous materials caused by intercalation of sodium deposited from molten salts electrolyte

Publié en ligne: 15 juin 2015

Pages: 1 - 4

DOI: https://doi.org/10.1515/acs-2015-0001

Mots clés
intercalation into graphite, sodium intercalation, fluoride melts, Rapoport test, graphite swelling

© Vladimír Danielik et al.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Measurement of the changes of carbonaceous materials caused by intercalation of sodium deposited from molten salts electrolyte

Publié en ligne: 15 juin 2015

Pages: 1 - 4

DOI: https://doi.org/10.1515/acs-2015-0001

Mots clésintercalation into graphite, sodium intercalation, fluoride melts, Rapoport test, graphite swelling

© Vladimír Danielik et al.

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
intercalation into graphite, sodium intercalation, fluoride melts, Rapoport test, graphite swelling