Integrating multifunctional catalytic sites in COF@ZIF-67 derived carbon for the HER and ORR.

Covalent organic framework (COF)-derived carbons have various applications in electrochemical energy storage and conversion systems. In this work, we have constructed a highly active catalyst (Ir-COF@ZIF 800 ) for the HER and ORR by integrating multifunctional sites (Ir nanoparticles, Co-N sites and Co nanoparticles) into core-shell COF@ZIF-67-derived carbon.