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US 2019/0097243 A1Published application
Chromate Based Ceramic Anode Materials for Solid Oxide Fuel Cells
AssigneeUniversity of Maryland, College Park
InventorsMohammed Hussain ABDUL JABBAR, Eric D. WACHSMAN, Ke-Ji PAN
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Abstract
The disclosure relates to solid oxide fuel cell (SOFC) anode materials that comprise various compositions of chromate based oxide materials. These materials offer high conductivity achievable at intermediate and low temperatures and can be used to prepare the anode layer of a SOFC. A method of making a low- or intermediate-temperature SOFC having an anode layer comprising a chromate based oxide material is also provided.
Claims20
An oxide composition comprising:
- M1(1-a)M2aCr(1-b)M3bO3±δ (I)
- wherein:
- M1 is a metal selected from the group consisting of Y, Nd, Pr, La, and a combination thereof;
- M2 is a metal selected from the group consisting of Ca and Sr;
- M3 is a metal selected from the group consisting of Cu and Mo;
- a is about 0.1-0.5;
- b is about 0.01-0.2;
- and
- 0≤δ≤1.5.
6 more elements
A solid oxide fuel cell comprising:
- (a) a cathode layer;
- (b) an electrolyte layer;
- and
- (c) an anode layer, wherein the anode layer comprises an oxide composition of formula (I):
- M1(1-a)M2aCr(1-b)M3bO3±δ (I)
- wherein:
- M1 is a metal selected from the group consisting of Y, Nd, Pr, La, and a combination thereof;
- M2 is a metal selected from the group consisting of Ca and Sr;
- M3 is a metal selected from the group consisting of Cu and Mo;
- a is about 0.1-0.5;
- b is about 0.01-0.2;
- and
- 0≤δ≤1.5.
10 more elements
Dependencies are inferred from the claim text.