Templating synthesis of Fe₂O₃ hollow spheres modified with Ag nanoparticles as superior anode for lithium ion batteries.

ABSTRACT: Ag-Fe₂O₃ hollow spheres are synthesized by using Ag@C core-shell matrix as sacrificial templates. The morphologies and structures of the as-prepared samples are characterized by scanning electron microscopy, X-ray powder diffraction energy dispersive, transmission electron microscopy and high resolution transmission electron microscopy. In contrast to Fe₂O₃ hollow spheres, Ag-Fe₂O₃ hollow spheres exhibit much higher electrochemical performances. The Ag-Fe₂O₃ composites exhibit an initial discharge capacity of 1030.9 mA h g^-1 and retain a high capacity of 953.2 mA h g^-1 at a current density of 100 mA g^-1 after 200 cycles. Furthermore, Ag-Fe₂O₃ electr

SUBMITTER: Lin X 

PROVIDER: S-EPMC5574980 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature