Bio-Derived Hierarchical Multicore-Shell Fe₂N-Nanoparticle-Impregnated N-Doped Carbon Nanofiber Bundles: A Host Material for Lithium-/Potassium-Ion Storage.

ABSTRACT: Despite the significant progress in the fabrication of advanced electrode materials, complex control strategies and tedious processing are often involved for most targeted materials to tailor their compositions, morphologies, and chemistries. Inspired by the unique geometric structures of natural biomacromolecules together with their high affinities for metal species, we propose the use of skin collagen fibers for the template crafting of a novel multicore-shell Fe₂N-carbon framework anode configuration, composed of hierarchical N-doped carbon nanofiber bundles firmly embedded with Fe₂N nanoparticles (Fe₂N@N-CFBs). In the resultant heterostructure, the Fe₂N nanoparticles firmly confined inside the carbon shells are spatially isolated but electron

SUBMITTER: Jiang H 

PROVIDER: S-EPMC7770912 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature