Co(O)x Particles in Polymeric N-Doped Carbon Nanotube Applied for Photocatalytic H2 or Electrocatalytic O2 Evolution.

ABSTRACT: A new way for synthesizing porous composite with cobalt species and N-doped carbon nanotubes (NDCNTs) was reported here by using cobalt salts and melamine mixtures as precursor. The Co(O)x/NDCNTs exhibited good activity of electrocatalytic O2 production. Furthermore, after reduced by H2, the Co-NDCNTs showed strong absorption of visible light and high catalytic activity of H2 production, which is 598.5 ?mol g-1 h-1 under the visible light (? > 420 nm). The results suggested that supramolecular preorganization of melamine monomers may be a promising method of synthesizing two-dimensional N-doped carbon nanotube with Co particles in it. The morphologies should be beneficial for the charge transport and separation. This work can encourage further synthesize new efficient noble-metal-free photocatalysts or electrocatalysts.

SUBMITTER: Zheng X 

PROVIDER: S-EPMC6918141 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature