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Figure 13 | Nanoscale Research Letters

Figure 13

From: Hollow Nanostructured Anode Materials for Li-Ion Batteries

Figure 13

a Schematic presentation of the self-supported topotactic transformation process for formation of needle-like Co3O4 nanotubes; b low-magnification SEM image of Co3O4 nanotubes; c high-magnification SEM image of Co3O4 nanotubes, the inset shows a cross-sectional view of nanotubes; d TEM image of a single nanotube [51]. Copyright Wiley–VCH Verlag Gmbh & Co. KGaA. Reproduced with permission

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