Synthesis for catalysis of bifunctional perovskite compound

Details Synthesis for catalysis of bifunctional perovskite compound Synthesis for catalysis of bifunctional perovskite compound

2011-06-07

2011-06-07

Mc Ginty, Douglas (Department: 1765)

Compositions

Electrically conductive or emissive compositions

Metal compound containing

C252S519150, C252S521100, C501S123000, C501S126000, C501S152000, C423S021100, C423S022000, C502S105000, C502S104000, C502S117000, C502S303000, C502S525000

Reexamination Certificate

active

07955529

ABSTRACT:
This invention discloses the synthesis of a bifunctional La0.6Ca0.4Co1-xIrxO3(x=0˜1) perovskite compound with a superb bifunctional catalytic ability for the oxygen reduction and generation in alkaline electrolytes. Synthetic routes demonstrated include solid state reaction, amorphous citrate precursor, and mechanical alloying. The interested compound demonstrates notable enhancements over commercially available La0.6Ca0.4CoO3.

REFERENCES:
patent: 7585474 (2009-09-01), Wong et al.
patent: 2005/0249653 (2005-11-01), Tanaka et al.
patent: 2010/0227759 (2010-09-01), Tanaka et al.
Chang, Yun-Min, et al., “Mechanical Alloying Preparation of La0.6Ca0.4CoIr0.25O3.5-x, as a Bifunctional Electrocatalyst in Alkaline Electrolyte”, Electrochem. Solid-State Lett., 11(4), B47-B50, published Jan. 28, 2008 (Abstract Only).
Chang, Yun-Min, et al., “Mechanical Alloying Preparation of La0.6Ca0.4CoIr0.25O3.5-x, as a Bifunctional Electrocatalyst in Alkaline Electrolyte”, Electrochem. Solid-State Lett., 11(4), B47-B50, published Jan. 28, 2008.
Chang et al., Yun-Min; Enhancement of bifunctional catalysis by Ir doping of La0.6Ca0.4CoO3perovskites, Material Letters 62, 2008, 4220-4222, Elsevier B.V.

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