上海科技大学知识管理系统

Covalent organic frameworks (COFs) have been widely employed aselectrocatalysts foroxygen reduction reaction (ORR) duetotheir diverse andtunable skeletons andpores. However, their electrocatalytic activity waslimited dueto thelack ofhighly active catalytic sites. Inthiswork, wehave firstimmobilized palladium nanoparticles (NPs) into thecrystal, porous, and stable imidelinked COF forORR. The newly designed COF had pyridine linkers with imide‐linkages intheframeworks serving asthebinding sites toanchor Pd sites, and thehigh surface area and open pore channels provide fastmass transport pathway totheactive Pdsites, which contributed highly active performance inORR. And thedesigned catalyst delivered onset potential and thehalf‐wave potential ofCOF‐Pd of0.97 and0.83 V,with alimited current density of6.1mA cm−2,respectively. This work provides usinsights into developing high crystalline COFs with metal NPs inelectrocatalytic systems.