A model of Bi-functional zirconia

• Autorzy: Bąk T. , Nowotny J. , Rękas M. , Sorrell C. C.
• Języki publikacji: EN

Abstrakty

EN

The paper considers an effect of the gas/solid interface on performance of solid oxide fuel cells (SOFC's). Specifically, application of bi-functional zirconia, involving the functions of a solid electrolyte and electrodes, is outlined. A model, describing the effect of segregation on the formation of a bi-dimensional surface layer, is proposed. The model is considered in terms of the effect of the surface layer on the transfer of charge and matter at the oxygen/zirconia interface. Impact of surface processing of zirconia, involving incorporation of aliovalent ions into the surface layer, on the formation of the bi-functional zirconia is discussed. Application of the bi-functional zirconia for construction of a new generation of electrodeless electrochemical devices is discussed.

Słowa kluczowe

EN

zirconia; defect chemistry; segregation

PL

dwutlenek cyrkonu; defekt chemiczny; rozdzielanie

• Wydawca: Centrum Upowszechniania Nauki PAN
• Czasopismo: Bulletin of the Polish Academy of Sciences. Chemistry
• Rocznik: 2001
• Tom: Vol. 49, No. 1
• Strony: 57--65
• Opis fizyczny: Bibliogr. 26 poz.

Twórcy

autor

Bąk T.

autor

Nowotny J.

autor

Rękas M.

autor

Sorrell C. C.

• Centre for Materials Research in Energy Conversion, School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia,