Selected-Control Synthesis of Monodisperse Fe3O4@C Core-Shell Spheres, Chains, and Rings as High-Performance Anode Materials for Lithium-Ion Batteries

A method is reported for the first time for the selected-control, large-scale synthesis of monodispersed Fe(3)O(4)@C core-shell spheres, chains, and rings with tunable magnetic properties based on structural evolution from eccentric Fe(2)O(3)@poly(acrylic acid) core-shell nanoparticles. The Fe(3)O(4)@C core-shell spheres, chains, and rings were investigated as anode materials for lithium-ion batteries. Furthermore, a possible formation mechanism of Fe(3)O(4)@C core-shell chains and rings has also been proposed.