Registration Number
0224U032886,
(0123U102769)
, R & D reports
Title
Development of solid oxide fuel cell electrolyte with improved operational properties
popup.stage_title
Розроблення та виготовлення структурованого електроліту керамічної паливної комірки на основі оксиду цирконію
Head
Brodnikovsk Yegor M., Кандидат технічних наук
Registration Date
10-12-2024
Organization
Frantsevich Institute for Problems of Materials Science National Academy of Science of Ukraine
popup.description1
- development of an approach of the structure formation and phase composition of zirconia-based electrolyte for solid oxide fuel cells (SOFC) and find out its influence on the electrolyte functional properties.
- find out the regularity of formation of the zirconia-based electrolyte structure depending on the composition of the stabilizing additive (Sc2O3, Y2O3, CeO2) and their combinations, and to study the influence of the formed structure features on the electrical properties and mechanical behavior of the electrolyte materials. Identifying the structure-property relationship for the developed electrolyte materials will allow determining its optimal composition and manufacturing modes that will provide the required properties.
- development of SOFC electrolyte material with higher electrical conductivity compared to the zirconia stabilized with 8 mol. % yttria (8YSZ), which is currently the traditional and most widely used electrolyte material in production of the commercial combined heat and power systems based on SOFC.
popup.description2
A literature review of scientific publications on the properties, structure, and research methods of solid oxide fuel cell electrolyte materials was conducted. A technological technique for manufacturing of structured electrolyte materials based on zirconia with different contents of stabilizing additives (Sc2O3, Y2O3, CeO2) was developed. As a result, mixtures of powders of electrolyte materials 10Sc1CeSZ – 8YSZ (33-, 40-, 50-, 65-, 75-, 90-%) of various compositions were prepared. Ceramics samples of six electrolyte materials of the 10Sc1CeSZ-8YSZ system (33-, 40-, 50-, 65-, 75-, 90%) and samples of traditional electrolyte materials 10Sc1CeSZ and 8YSZ were made for further comparative study of their electrical and mechanical properties. The phase composition of the samples was studied. All samples showed a cubic phase of zirconium oxide. The further work has been begun on studying the structure of the obtained ceramic samples: polished cross sections of the samples were prepared to study the distribution of grains by size. The work on studding of the structures of the ceramic electrolytes 10Sc1CeSZ-8YSZ by means of SEM was begun.
Product Description
popup.authors
Drodnikovskyi Yehor M,
Drodnikovskyi Dmytro M,
Vasyliev Oleksandr О.
Vasyliev Oleksandr D.
Holovkova Maryna Ye,
Horda Ruslana V,
Lysunenko Natalia O.
Molchanovska Halyna M,
Polishko Ihor O,
popup.nrat_date
2024-12-10
