Rational design of double-shelled Fe-, N-, and S-tridoped hollow mesoporous carbon spheres as high-performance catalysts for organic reactions.

Herein, hollow large-pore mesoporous carbon spheres with double Fe-, N-, and S-tridoped shells (DSHM-Fe/SNC) were fabricated via a rational self-sacrificing template route. Benefiting from the abundance of multi-heteroatom doping induced active sites, unique hierarchical structures to enhance active site exposure, and conductive networks to facilitate electron transfer, the as-prepared DSHM-Fe/SNC materials exhibit remarkable catalytic performance and excellent reusability toward reduction of p-nitrophenol.