Structural evolution from mesoporous α-Fe2O3 to Fe3O4@C and γ-Fe2O3 nanospheres and their lithium storage performances†
Abstract
Mesoporous α-Fe2O3 nanospheres were synthesized through a solvothermal route, with polyethylene glycol as soft templates. The mesoporous nanospheres were then coated with carbon through hydrothermal treatment of