“…The flattened surface is conducive to grow Cu(OH) 2 NRs homogeneously. [25] Characterization of Cu(OH) 2 nanorods Figure 3(a) is the XRD pattern of Cu(OH) 2 NRs prepared by chemical oxidation method in the mixed solution of (NH 4 ) 2 S 2 O 8 and NaOH. The XRD peaks at ∼ 17°, ∼ 24°, ∼ 34°, ∼ 32°, ∼ 36°, ∼ 38°, and ∼ 40°, ∼ 47°, can be assigned to (020), ( 021), (002), (À 110), ( 111), ( 022), (130), and (À 202) crystal face, respectively, which are indexed to the orthorhombic Cu(OH) 2 .…”