1 Results Oxy-apatite materials are thought as zirconia-substitutes in Solid Oxide Fuel Cells due to their fast ionic conduction. However, the well known difficulties related to their densification prevent them from b...1 Results Oxy-apatite materials are thought as zirconia-substitutes in Solid Oxide Fuel Cells due to their fast ionic conduction. However, the well known difficulties related to their densification prevent them from being used as such. This study presents strategies to obtain oxy-apatite dense materials and the influence of elaboration route on transport properties. Particular emphasis is put on the microstructure effect on ion conduction. By the combined use of freeze-drying and conventional or spark p...展开更多
1 Results We study the synthesis,the structural and transport properties of acceptor-doped barium stannate BaSn0.75B0.25O3-d (B=La,Y…) compounds.Some of these materials were presented few years ago as good proton con...1 Results We study the synthesis,the structural and transport properties of acceptor-doped barium stannate BaSn0.75B0.25O3-d (B=La,Y…) compounds.Some of these materials were presented few years ago as good proton conductors with some interest for the fuel cell community[1-2].Nevertheless,these studies were only limited to two kinds of dopants and the elaboration was far from being optimised leading to poor properties.So the main objective of the present study is to extend the study of acceptor-doped bar...展开更多
文摘1 Results Oxy-apatite materials are thought as zirconia-substitutes in Solid Oxide Fuel Cells due to their fast ionic conduction. However, the well known difficulties related to their densification prevent them from being used as such. This study presents strategies to obtain oxy-apatite dense materials and the influence of elaboration route on transport properties. Particular emphasis is put on the microstructure effect on ion conduction. By the combined use of freeze-drying and conventional or spark p...
文摘1 Results We study the synthesis,the structural and transport properties of acceptor-doped barium stannate BaSn0.75B0.25O3-d (B=La,Y…) compounds.Some of these materials were presented few years ago as good proton conductors with some interest for the fuel cell community[1-2].Nevertheless,these studies were only limited to two kinds of dopants and the elaboration was far from being optimised leading to poor properties.So the main objective of the present study is to extend the study of acceptor-doped bar...
