Copper nanocubes and nanostructured cuprous oxide prepared by surfactant-assisted electrochemical deposition

Non-enzymatic amperometric detection of hydrogen peroxide using grass-like copper oxide nanostructures calcined in nitrogen atmosphere

“…3(b) shows the Cu 2p core-level binding energy spectrum of the asprepared sample. Two fitted peaks at approximately 933.7 and 954.2 eV are related to Cu 2+ 2p 3/2 [30,32,33] and Cu 2+ 2p 1/2 [34,35] peaks respectively, whereas the other two fitted peaks at 932.5 and 952.2 eV correspond to Cu + 2p 3/2 [30,32] and Cu + 2p 1/2 [36,37] peaks respectively (standard deviation of approximately 0.05 eV). The presence of satellite peaks at the binding energy range between 940-945 and 960-965 eV is considered a fingerprint of the CuO phase with a d 9 electron configuration in the ground state [38].…”

Additive Free Co-Deposition of Nanocrystalline Copper/Cuprous Oxide by Electrodeposition

“…The Cu2O crystals were also found to have an octahedral shape in the steady state. In the literature, Cu2O nanocrystals and co-deposition of Cu and Cu2O were usually obtained by electrodeposition in alkaline media [15] or with the use of additives in the electrolyte [16]. In this study, however, we successfully fabricated nanosized single crystals of Cu2O, co-deposition of Cu and Cu2O, as well as pure Cu nanocrystals, on…”

“…al. demonstrated that Cu/Cu2O composite nanowire arrays could be deposited by varying the pH value and potentials by using anodic aluminum oxide (AAO) [14]. Switzer depositions and studied the effect of temperature, pH value and reaction time on the shape evolution [16]. All of these studies made use of alkaline media.…”

Cu nanostructures of various shapes and sizes as superior catalysts for nitro-aromatic reduction and co-catalyst for Cu/TiO2 photocatalysis

“…Amongst coinage metal nanoparticles (NPs), shape and size dependent catalytic activity of Au and AgNST [10][11][12][13][14] has been widely studied as compared to the relatively oxidative nature of Cu nanostructures which limits their usability for stable catalytic activity. There were perspective reports on the preparation and optical properties of CuNPs [18][19][20][21][22][23][24], yet a comparative account of their catalytic activity as a function of geometric morphology is rarely investigated. Anisotropic NPs (rods and wires) relative to the isotropic particles (spheres) brings break in the symmetry as well as alterations in the confinement of electrons in all the three dimensions, and hence would expect to show modified catalytic activity.…”