Structural, electrical and H2 sensing properties of copper oxide nanowires on glass substrate by anodization

Anodization fabrication techniques and energy-related applications for nanostructured anodic films on transition metals

“…They investigated the combined effect of KOH and NH 4 Cl on Cu anodization and found that no porous structure could be obtained using NH 4 Cl-based electrolytes. This result was also verified in a more recent study [108] . The Grimes group [89] discovered that a nanoporous structure appeared on the entire Cu surface after the Cu foil was anodized at 6 V for 300 s in an aqueous electrolyte containing 0.15 mol L -1 KOH and 0.1 mol L -1 NH 4 F. When the KOH concentration was increased to 0.2 mol L -1 while maintaining all other conditions, anodic products with porous microspheroids were obtained.…”

“…As indicated above, numerous research efforts have focused on tuning the nanostructure and function of copper oxide-based materials by anodization, which has led to the discovery of many fascinating properties and applications. In addition to the PEC and supercapacitor applications commonly encountered, copper oxide-based materials have found applications in sensors [43,109,119,127,128] , pH-controllable water permeation [93] , superhydrophobic anticorrosion coatings [94,95,129] , oil/water separation [122] and surface-enhanced Raman scattering substrates [108] .…”

Hierarchical copper oxide microspheres prepared in an ordinary household microwave oven

“…Peaks II and III originated from surface chemical compounds that contain oxygen atoms. In specific, peak II is related to the oxygen atoms in hydroxyl and carbonate groups, whereas peak III corresponds to the surface‐adsorbed water [18, 19]. Comparison of the integrated area of peak I with the sum of the integrated areas reveals that the percent of oxygen from the lattice oxide is 33.6 and 45.8% for W–CuO and H–CuO, respectively, indicating that W–CuO has more surface compounds, such as hydroxyl group and adsorbed water than H–CuO [20].…”

Antimicrobial properties dependence on the composition and architecture of copper-alumina coatings prepared by plasma electrolytic oxidation (PEO)

“…The most probable oxidation states for copper in sample C are the stable Cu 2+ and Cu + at minor extension. According to S ¸is ¸man et al [49], the peak with the lowest binding energy value, usually reported in the 932.0-932.7 eV region, can be related to Cu + ions in Cu 2 O. Therefore, the low-intensity peak observed at 931 eV in sample C, observed from deconvolution of the main peak centered at 933 eV, may indicate a small quantity of Cu + forming Cu 2 O in the coating.…”