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Projects / Programmes source: ARIS

Keramični materiali za visokotemperaturne gorivne celice (Slovene)

Research activity

Code Science Field Subfield
2.04.00  Engineering sciences and technologies  Materials science and technology   

Code Science Field
T150  Technological sciences  Material technology 
T153  Technological sciences  Ceramic materials and powders 
Keywords
fuel cells, SOFC, cathode, electrolyte, perovskite, caracterisation, interactions
Evaluation (rules)
source: COBISS
Researchers (10)
no. Code Name and surname Research area Role Period No. of publicationsNo. of publications
1.  06627  PhD Slavko Bernik  Materials science and technology  Researcher  1996 - 2001 
2.  05214  Jena Cilenšek    Researcher  2000 - 2001 
3.  15598  Hamdija Hodžić    Researcher  1998 - 2001 
4.  06423  PhD Janez Holc  Materials science and technology  Head  2000 - 2001 
5.  03219  PhD Marko Hrovat  Materials science and technology  Researcher  2000 - 2001 
6.  02627  PhD Marija Kosec  Electronic components and technologies  Researcher  2000 - 2001 
7.  13369  PhD Danjela Kuščer Hrovatin  Electronic components and technologies  Researcher  1996 - 2001 
8.  02572  Srečo Maček    Researcher  1996 - 2001 
9.  04545  MSc Dubravka Ročak  Electronic components and technologies  Researcher  1999 - 2001 
10.  01855  PhD Dimitrij Sušnik  Materials science and technology  Researcher  1996 - 2001 
Organisations (1)
no. Code Research organisation City Registration number No. of publicationsNo. of publications
1.  0106  Jožef Stefan Institute  Ljubljana  5051606000  18 
Abstract
The aims of investigations were studies and development of ceramic materials for high temperature solid oxide fuel cells (SOFC). The solid electrolyte in SOFC cells is usually yttria stabilised cubic zirconia (YSZ). The YSZ is good ionic conductor at temperatures around 1000oC, which are working temperatures of today’s SOFCs. The solid electrolyte in SOFC cells is usually yttria stabilised cubic zirconia (YSZ). The next generation of SOFCs will have lower operating temperatures around or under 800oC. For this the materials with higher ionic conductivity for example CeO2 doped with M3+ ions. Electrically conducting oxides are used as SOFC cathode. LaMnO3, LaFeO3 and LaCoO3 perovskites doped with earth alkaline and aluminium ions, were synthesised and characterised. Possible interactions between perovskites and solid electrolyte materials were studied. Partial replacement of B side ions with alumina ions decreased the rate of formation of undesirable La2Zr2O7 pyroclore with high electrical resistivity on the interface between cathode layer and YSZ. LaFeO3 based cathode material is compatible with CeO2 based solid electrolyte.
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