A Triatomic Cobalt Catalyst for Oxygen Electrocatalysis

is the catalytic site for bifunctional ORR/OER electrocatalysis. The constructed triangular pyramidal active sites effectively regulate the d-band center and electronic configuration and promote the adsorption/desorption of oxygen intermediates. This work uncovers that the geometry and electronic structure of triatomic active centers play a key role in improving bifunctional ORR/OER performance for electrochemical energy applications.