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Micrographs of the Co nanowires. The SEM image of the AAM surface is shown in (a) and the SEM image of the Co nanowire array released from AAM is shown in (b). The TEM micrograph of a single Co nanowire wrapped by alumina is shown in (c).
In situ heating XRD patterns of the as-prepared Co nanowire array. Lattice expansion can be clearly observed from the position shift of the diffraction peak (002) as shown in the inset.
EXAFS curves with -weight of the first coordination shell for the as-prepared Co nanowire array from 25 to . The symbols represent the experimental data and the solid lines are the fitting curves.
Plots of the first coordination bond length vs temperature for the as-prepared Co nanowire array.
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