Zirconia-based solid electrolyte obtained by tape casting

Тиунова, О. В.; Хабас, Т. А.; Бредихин, С. И.; Курицына, И. Е.

doi:10.1134/s2075113316020222

Cited by 2 publications

(1 citation statement)

References 6 publications

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“…Tape casting technique is indicated to obtain SOFC components because it is an excellent low cost technique to obtain thin flat ceramics [21,22]. In this work, tape casting technique was used to prepare GDC-YSZ bi-layer electrolyte and single layer electrolytes of GDC and YSZ.…”

Section: Introductionmentioning

confidence: 99%

Electrical and microstructural characterization of Gd-doped Ceria/Y-doped Zirconia bi-layer electrolyte prepared by tape casting

Dias

Souza

2017

Matéria (Rio J.)

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GDC-YSZ bi-layer SOFC electrolytes are an interesting manner to protect GDC electrolytes of the low oxygen partial pressure present at anode-electrolyte interface. This oxygen partial pressure condition and high temperatures during the operation of SOFC permit GDC electrolyte reduction injuring the performance of SOFC. In this work, GDC-YSZ bi-layer electrolytes were prepared using double tape casting technique. Single layers of YSZ and GDC electrolytes were also prepared by the same technique for comparison. All samples were sintered at 1600 °C/2 h in air and analyzed by SEM and impedance spectroscopy technique. A good adhesion was established between the layer GDC and YSZ and no cracks were detected despite the differential firing shrinkage. The electrical conductivity of GDC-YSZ bi-layer sample at 350 °C was 7.98x10 -5 S.cm -1 and for GDC and YSZ single layer samples electrical conductivities were 1.89x10 -4 S.cm -1 and 4.71x10 -5 S.cm -1 , respectively. These results show that GDC-YSZ bi-layer electrolyte is superior to YSZ single layer electrolyte.

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Section: Introductionmentioning

confidence: 99%

Electrical and microstructural characterization of Gd-doped Ceria/Y-doped Zirconia bi-layer electrolyte prepared by tape casting

Dias

Souza

2017

Matéria (Rio J.)

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Solid oxide fuel cells based on ceramic membranes with mixed conductivity: improving efficiency

Pikalova¹,

Калинина²

2021

Russ. Chem. Rev.

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Modern approaches to increasing the efficiency of solid-oxide fuel cells (SOFCs) based on electrolytic membranes with mixed conductivity are considered. These approaches are based on material-science concepts (expansion of the electrolytic domain boundary due to the doping of basic oxides and development of various composite materials) and various technological solutions (application of electron-blocking layers on the anode and cathode sides, rational selection of the electrolyte thickness, and optimization of the electrolyte and electrode structures by synthesizing heterostructures). The methods of mathematical modelling of devices with an electrolytic membrane having mixed conductivity are analyzed in order to determine the most efficient design and optimal operation conditions for SOFCs. The application of nanocomposite electrolytes with a core – shell structure and salt composites is considered. Data on new design solutions — single-layer and single-chamber SOFCs — are presented. The prospects of the proposed approaches are evaluated. The bibliography includes 384 references.

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Zirconia-based solid electrolyte obtained by tape casting

Cited by 2 publications

References 6 publications

Electrical and microstructural characterization of Gd-doped Ceria/Y-doped Zirconia bi-layer electrolyte prepared by tape casting

Electrical and microstructural characterization of Gd-doped Ceria/Y-doped Zirconia bi-layer electrolyte prepared by tape casting

Solid oxide fuel cells based on ceramic membranes with mixed conductivity: improving efficiency

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