On the Electrodepositing of Cobalt Nanoparticles on ITO in the Presence of Boric Acid

The Multi-Functional Role of Boric Acid in Cobalt Electrodeposition and Superfill

“…19,40 Boric acid has also been shown to affect the texture of electrodeposited cobalt, which could affect grain size and nuclei growth. 37,41,42 Fig. 2 shows the SIMS depth profiles for electroplated cobalt films from baths with varying boric acid concentration (deposited at 1 mA cm −2 , 100 rpm, pH 4, ∼100 nm thickness).…”

“…It has also been reported that boric acid can adsorb onto the surface of iron-group metals and oxides, [29][30][31][32][33][34][35][36] which can decrease the active surface area and inhibit reduction reactions, as well as change the texture of the deposited film. 37 However, the adsorption has been shown to be different on different surfaces, and there is little to no data concerning boric acid adsorption on cobalt. Moreover, boric acid adsorption on iron oxide 35 was found to depend on both applied potential and solution pH, with maximum boron adsorption occurring at higher pH and near the point of zero charge (pzc), implying lower probability of adsorption under typical electroplating conditions.…”

The Temperature-Dependent Microstructure and Magnetic Parameters of FeCo Films

“…The same conclusion is reported in the literature. 37 The cross-sectional images of a series of films are also characterized in Fig. 3f.…”

“…The thickness of films obtained from SEM is presented in Table II. The results show the thickness of films firstly increases with the improvement of the deposition temperature from 18 to 70 • C, and then decreases when the deposition temperature is 78 • C. The enhanced film thickness is due to the faster deposition rate when the deposition temperature is in the range of 18 ∼ 70 • C. During the electrodeposition process, for high temperature, the electrodeposition efficiency could drop down by about 40% and hydrogen adsorption process would become less favorable to modify the hydrogen electronic desorption rate, which may result in the decrease of thickness at 78 • C. 37 It is reported that electrolyte temperature is an important parameter to tailor the magnetic anisotropy. 9,11,38 In order to reflect the influence of temperature on the static magnetic properties of FeCo films, M-H curve was performed by VSM.…”

An Electrochemical Study of the Cobalt Electrodeposition Onto a Carbon Fiber Ultramicroelectrode

“…Cobalt electrodeposits have received considerable attention due to their potential applications in scientific and technological fields related to the storage of digital information. 1 They have been used in the fabrication of sensors, 2 heterogeneous catalysis, 3 and in the synthesis of intercalation compounds for energy storage 4 among others. Here, it is interesting to mention that during the cobalt electrodeposition process it is possible to optimize parameters such as temperature, applied current density, and electrolyte composition.…”