Cobalt-Carbon Core-Shell Nanoparticles Aligned on Wrinkle of N-Doped Carbon Nanosheets with Pt-Like Activity for Oxygen Reduction.

A one-step soft-template induced strategy is demonstrated for the controlled synthesis of nitrogen-enriched core-shell structured cobalt-carbon nanoparticles (NPs) sequentially aligned on wrinkles of N-doped carbon nanosheets (Co-C@NWCs). The key feature of Co-C@NWCs for ORR catalysis enhancement is that it combines high catalytic centers of Co-C core-shell NPs with the wrinkle of carbon nanosheets with high electron donation ability.