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Electron‐donating/‐withdrawing groups (EDGs/EWGs) substitution is widely used to regulate the catalytic performance of transition‐metal phthalocyanine (MPc) toward electrochemical CO2 reduction, but the corresponding structure‐activity relationships and regulation mechanisms are still ambiguous. Herein, by investigating a series of substitution‐functionalized MPc (MPc‐X), this work reveals a double‐volcano‐like...
Coupling sites of nitrogen dopants and intrinsic carbon defects (N/DC) in metal‐free carbon are highly active toward electrocatalytic oxygen reduction reaction (ORR), and yet they are hard to be effectively constructed. Here, a novel synthesis strategy for fabrication of N/DC‐enriched metal‐free carbon from precursors containing metal‐nitrogen moieties (M‐Nx) is reported. During pyrolysis of the precursors,...
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