Controllable preparation of nitrogen-doped graphitized carbon from molecular precursor as non-metal oxygen evolution reaction electrocatalyst

摘要: Abstract Nitrogen-doped graphitized carbon materials have been proposed as promising catalytic for oxygen evolution reaction in alkaline water-electrolysis hydrogen production. In this study, newly graphene-like nanocages and nitrogen-doped nanotubes are controllably prepared by using Tween-20 molecular precursor, Ni graphitization catalyst urea nitrogen source. The as-prepared characterized X-Ray Diffraction, scanning electron microscope, transmission microscopy Raman spectroscopy X-ray photoelectron spectroscopy. OER electrochemical performances evaluated linear sweep voltammetry chronoamperometry. It is found that the higher activity, lower overpotential desirable stability relative to nanocages, demonstrating it a material