Membrane with a stable nanosized microstructure and method for producing same
AssigneeTechnical University of Denmark
InventorsPeter Halvor Larsen, Søren Linderoth
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Abstract
The present invention provides a membrane, comprising in this order a first catalyst layer, an electronically and ionically conducting layer having a nanosized microstructure, and a second catalyst layer, characterized in that the electronically and ionically conducting layer is formed from an electrolyte material, a grain growth inhibitor and/or grain boundary modifier, and a method for producing same.
Claims13
A membrane comprising, in order, a first catalyst layer, an electronically and ionically conducting layer having a nanosized microstructure, and a second catalyst layer, wherein the electronically and ionically conducting layer is formed from an electrolyte material, a grain growth inhibitor and/or a grain boundary modifier,
- wherein the electronically and ionically conducting layer comprises Ce1-xMxO2- δ(where M is selected from the group consisting of Ca, Sm, Gd, Sc, Ga and Y, and 0 ≦x≦1);
- wherein the grain growth inhibitor comprises an oxide selected from the group consisting of Sc2O3, VOx, TaOx, MnOx, NbOx, SrO, CaO, MgO, Bi2O3, LnOx, MgCr2O4, MgTiO3, CaAl2O4, LaAlO3, YbCrO3, ErCrO4, NiTiO3, NiCr2O4, metal carbides, metal nitrides, and mixtures thereof;
- and
- wherein the grain boundary modifier comprises an oxide selected from the group consisting of MnOx, VOx, MgCr2O4, CaCrxVyO4, SrCrxVyO4, YbCrO3, ErCrO4, NiTiO3, NiCr2O4, and mixtures thereof.
Dependencies are inferred from the claim text.