Characterization of electrodeposited thin film of cadmium on molybdenum using optical second harmonic generation

Voltammetric and amperometric analyses of electrochemical nucleation: electrodeposition of copper on nickel and tantalum

“…The instruments and experimental procedures used in this work are discussed elsewhere in detail [34][35][36][37]. In brief, the Ni and Ta working electrodes, both 6.5 mm diameter polycrystalline cylinders (mounted in Teflon holders) were polished down in several steps, with 1, 0.3, 0.1 and 0.05 lm alumina abrasives.…”

“…In C, t 1 ¼ 0:078 s and t 2 ¼ 1:205 s. In D, t 1 ¼ 0:061 s and t 2 ¼ 1:124 s. catalytic cathodic reaction [38] promoted by the nucleation sites. Examples of i PS s include oxygen reduction, hydrogen evolution, and/or the reduction reaction Cu 2þ + e À ¼ Cu þ [37,38,69]. In our analysis, we will focus on fitting the experimental data in regions I and III, and will examine only qualitatively the length of the transition region II.…”

Surface kinetics of electrodeposited silver on gold probed with potential step and optical second harmonic generation techniques

“…In eqn. (17), is the surface fraction h b a of the electrode (normalized with respect to the illuminated area of the bare Au surface area) covered by adsorbate clusters assembled via 3-D nucleation. The coverage term, H b a , accounts for the increased surface area sampled by the probe laser beam as 3-D surface islands are grown.23 Thus for example, for hemispherical adsorbate clusters of an average radius R, grown around nucleation centers per unit area, N 1 and…”

An SFG and DFG investigation of polycrystalline Au, Au–Cu and Au–Ag–Cu electrodes in contact with aqueous solutions containing KCN

“…A spectroelectrochemical approach has been recently taken: bulk field VIS-ERS, VIS-SHG and multiline SERS offer the possibility of significant breakthroughs in the study of electronic effects relevant to in situ Au-alloy work. In situ electrochemical SHG has been employed in the case of bimetallic interfaces, in the following UPD and electrodeposition studies: (i) polycrystalline Au electrodes and deposition of Ag [11], Pd [12] and Te [13]; (ii) Au(1 1 1) electrodes and deposition of Cu [14,15], Ag, Pb, Tl [15] and Te [16]; (iii) deposition of Cu on polycrystalline Ag [14]; (iv) deposition of Cd on polycrystalline Cu [17]; (v) polycrystalline Mo substrates and deposition of Cd [18] and In [19]. Regarding alloys, in situ SHG has been employed in the study of the corrosion of brass [20,21].…”