Potential of zero charge of monocrystalline copper electrodes in perchlorate solutions

Diffusion and segregation of substrate copper in electrodeposited Ni–Fe thin films

“…But the data for Cu is somewhat controversial, since the main experimental difficulty is great tendency of copper to surface oxidation. There are some reports on positive and zero pzc versus SHE while others report negative values [32][33][34]. It has been identified that by removing of oxygen in solution and cleaning of the surface oxides, the pzc of Cu is negative similar to other fcc structures [34].…”

“…There are some reports on positive and zero pzc versus SHE while others report negative values [32][33][34]. It has been identified that by removing of oxygen in solution and cleaning of the surface oxides, the pzc of Cu is negative similar to other fcc structures [34]. In our experiments, we expect that the Cu surface is oxidized by a layer of Cu 2 O with ∼20Å thickness before insertion into the bath (both areated and deareated) [22].…”

Seeded growth fabrication of Cu-on-Si electrodes for in situ ATR-SEIRAS applications

“…2, by assuming a theoretical value of 300 C cm −2 for an ideal Cu(1 1 1) electrode as the reference [47,48]. The cyclic voltammetric feature of the above Pb-UPD on the as-deposited Cu film electrode is not identical to that on a polycrystalline Cu bulk electrode, rather it is somehow in between that on Cu(1 1 1) electrode and that on Cu(1 1 0) electrode, suggestive of preferred growth to some extent of these two crystalline orientations [48]. As comparison, the corresponding cyclic voltammogram for Pb-UPD on a bulk polycrystalline Cu electrode is shown in Appendix A.…”

Computational and electrochemical investigation for corrosion inhibition of nickel in molar nitric acid by piperidines

“…It has been shown in the literature that ac impedance studies can be used to evaluate the potential of zero charge (PZC) from the capacitance (C dl ) versus voltage (E) plot [36][37][38]41]. Figure 10 represents the variation of C dl with E recorded for nickel in 1.0 M HNO 3 solution in the absence (curve 1) and presence of 10 -2 M 2mp, (curve 2).…”