Self-Supported Construction of Uniform Fe3O4 Hollow Microspheres from Nanoplate Building Blocks



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As alike as two peas in a pod: Hollow iron-containing microspheres composed of nanoplate-like building blocks were synthesized by a straightforward strategy and readily converted into magnetic Fe3O4 hollow microspheres (see images) without noticeable structural deformation. These Fe3O4 microspheres exhibited high reversible capacity and excellent cycling performance when evaluated as an anode material for lithium-ion batteries.