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Research Article

Stereoassembled V2O5@FeOOH Hollow Architectures with Lithiation Volumetric Strain Self-Reconstruction for Lithium-Ion Storage

Figure 4

(a) XRD patterns of V2O5@FeOOH heterostructures. (b–d) XPS analysis of V2O5@FeOOH heterostructures: (b) Fe 2p, (c) V 2p, and (d) O 1s spectra.

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