Facile one-pot fabrication for versatile N-doped carbonaceous hybrid with hollow architecture

Abstract

In this paper, aminophenol-formaldehyde resin hollow spheres (H-APF) were directly prepared through a facile one-pot sol-gel process, which adopt the strategy of manipulating the polymerization degree of polymer products followed by in-situ selective dissolution. The characterization results verify the well-defined hollow architecture and abundant amine groups of synthesized products. After carbonization, the porous N-doped carbon hollow spheres can be obtained. Through suitable reduction depositing method, gold or platinum nanoparticles can be anchored onto the surface of polymer hollow spheres, which exhibit excellent activity in selective hydrogenation of o-nitrochlorobenzen. In addition, Fe and Co-doped H-APF hybrids with metal species embedded in carbonaceous shell can also be synthesized via this facile one-pot process by introducing corresponding precursors into the synthetic system. Compared to the metal-free sample, the metal-doped carbon hollow spheres are more positive in ORR process. This work provides the facile synthesis of N-doped carbonaceous spheres with hollow architecture, which have been proved to be versatile in the fields of heterogeneous catalysis and electrochemical process.