Synthesis and characterization of Ni nanoparticles supported on nitrogen-doped mesoporous carbon

摘要

Nitrogen-doped mesoporous carbon(N-MC)was synthesized by the soft-templating method using phloroglucinol/formaldehyde and melamine as carbon and nitrogen precursors,respectively,and Pluronic F127 as a template for the generation of mesopores inside the carbon structure.Scanning electron microscopy analysis revealed that the material had a rough surface,while Raman analysis indicated the existence of sp-hybridized carbon rather than sp,similar to graphite.The increase of the D-band to G-band intensity ratio indicated that N-MC has a more graphite-like structure than pristine mesoporous carbon.X-ray photoelectron spectroscopy analysis confirmed that nitrogen was successfully doped into the carbon framework.The material was then used as a support for Ni nanoparticles(Ni-NPs).The presence of Ni metal in Ni-NP@N-MC was confirmed by X-ray diffraction analysis.