Large-Scale Cu Nanowire Synthesis by PVP-Ethylene Glycol Route

Figure 2

SEM images of Cu products obtained under different PVP concentrations: (a) 25, (b) 45, (c) 55, and (d) 75 mM (scale bar: 10 μm). (e) FT-IR spectra of pure PVP and PVP-capped Cu NWs. (f) Thermal behavior of PVP-capped Cu NWs measured under N₂ flow. (g) Schematic illustration describing the effect of concentration on the adsorption of PVP on Cu surface.

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