Fe induction strategy for hollow porous N-doped carbon with superior performance in oxygen reduction†
Abstract
An Fe induction strategy is introduced to achieve template-free synthesis of Co,Fe dual-metal N-codoped hollow porous carbon from zeolitic imidazole frameworks, which is beneficial for the exposure of highly dispersed metal (M)–Nx active sites and enhancement of mass transport, thereby exhibiting a superior electrocatalytic activity (E1/2, 0.86 VRHE).