Electro-catalytic conformal coatings and method for making the same
AssigneeGeorgia Tech Research Corporation
InventorsDong Ding, Meilin Liu
Life of this patent
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Abstract
A composition of matter is disclosed which is a perovskite having a composition A2−xA′xB2−yB′yO6−δ, where A is a praseodymium (Pr) element at the A-site of the perovskite, A′ is a strontium (Sr) element at the A-site of the perovskite, B is a cobalt (Co) element at the B-site of the perovskite, and B′ is a manganese (Mn) element at the B-site of the perovskite, and where 0<x ≤1 and 0<y<2. Also disclosed is an electrode material Conformally coated with the composition of matter. Also disclosed are methods of producing the composition of matter and conformally coating the electrode material. Also disclosed an electrode is conformally coated with a praseodymium strontium manganese perovskite and a method for the coating.
Claims18
An electrode of comprising:
- a porous mixed ionic-electronic conductor (MIEC);
- and
- an oxygen-reducing catalyst coating having a thickness in a range from about 1 to about 50 nm;
- wherein the oxygen-reducing catalyst coating comprises a perovskite having a composition A1−xA′xBO3−δ;
- wherein A comprises a praseodymium (Pr) element at the A-site of the perovskite, A′ comprises a strontium (Sr) element at the A-site of the perovskite, and B comprises a manganese (Mn) element at the B-site of the perovskite;
- and
- wherein 0≤x<1.
An electrode comprising:
- a porous mixed ionic-electronic conductor (MIEC);
- and
- an oxygen-reducing catalyst coating having a thickness in a range from about 1 to about 50 nm;
- wherein the oxygen-reducing catalyst coating comprises a perovskite having a composition A2−xA′xB2−yB′yO6−δ;
- wherein A comprises a praseodymium (Pr) element at the A-site of the perovskite, A′ comprises a strontium (Sr) element at the A-site of the perovskite, B comprises a cobalt (Co) element at the B-site of the perovskite, and B′ comprises a manganese (Mn) element at the B-site of the perovskite;
- and
- wherein 0<x≤1.2 and 0<y<2.
The electrode of 1, wherein x<0.5.
Dependencies are inferred from the claim text.