Highly Actively Co-Based Perovskites for Water Splitting

Applications include hydrogen fuel cells and solar-driven water splitting electrolyzer.  

Problem Addressed   

This technology overcomes these current problems:Oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) are two limiting processes that each contributes to ~0.4 V lossCost and scarcity of noble metal oxide catalysts is prohibitive for practice applications  

Technology     

The invention describes a method to design efficient, abundant, non-precious-metal catalysts for OER. The design principle looks to develop a more active OER catalyst by engineering the eg filling to a value of ~1.3-1.4. With proper understanding, tuning surface electronic features like the transition metal eg filling is a promising strategy to develop highly active non-precious-metal containing oxide catalysts that can have higher activity than state-of-the-art precious metal-containing material.  

Advantages      

• Highly active non-precious-metal containing oxide catalysts for O2 electrocatalysis
• Step toward implementation of hydrogen-based renewable energy
• More cost-effective