For broad applications of fuel cells and electrolyzers as regenerative energy storage and conversion systems, the catalysis of oxygen-based reactions is decisive. A possible long-term application requires the catalysis of the oxygen evolution reaction (OER) as well as the oxygen reduction reaction (ORR). Catalysts of today facilitate only one or the other.

The invention presented here combines two catalysts, meeting both requirements in this way. The hereby utilized metals are common used transition metals and therefore cost-efficient. Both catalysts don’t compete and therefore show no significant impairment for their specific catalyzed reactions. The graphitic substrate also doesn’t experience carbon corrosion, usually posing an enormous problem for the longevity of the electrode. The manufacturing takes place with a catalyst ink, forming the catalyst material on the substrate with common processes.