Simultaneously Crafting Single‐Atomic Fe Sites and Graphitic Layer‐Wrapped Fe₃C Nanoparticles Encapsulated within Mesoporous Carbon Tubes for Oxygen Reduction

The rational design and facile synthesis of 1D hollow tubular carbon‐based materials with highly efficient oxygen reduction reaction (ORR) performance remains a challenge. Herein, a simple yet robust route is employed to simultaneously craft single‐atomic Fe sites and graphitic layer‐wrapped Fe 3 C nanoparticles (Fe 3 C@GL NPs) encapsulated within 1D N‐doped hollow mesoporous carbon tubes (denoted Fe‐N‐HMCTs). The successional compositional and...