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The SEM images of superhydrophobic surfaces constructed on copper wafer by the electrodeposition process. The reaction times are (a) 1, (b) 2.3, and (c) 3. (d) Digital photograph of water droplet on superhydrophobic surface (take copper as an example). The bars represent .
(a) FTIR spectra of -tetradecanoic acid (1) and (2) powders scraped from the prepared surface. (b) and (c) are XPS spectra and C pecks of the as-prepared surface, respectively. (d) is the XRD spectrum of powders scraped from the prepared surface. Cathode and anode are all copper.
The relationship between values (a) and concentration of the solutions of NaCl, (inner graph) (b) with contact angle of the prepared superhydrophobic surface.
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