A novel viewpoint of an imidazole derivative ionic liquid as an additive for cobalt and nickel electrodeposition

Abstract

Thin films of Co and Ni electroplated onto a copper electrode from acidic sulfate and Watts baths, respectively, were investigated.

Hydrogen Evolution Reaction Performance of Ni–Co-Coated Graphene-Based 3D Printed Electrodes

“…On the other hand, the cathodic peak at −0.218 V is related to the Ni(III) to Ni(II) reduction. 60,61 In the CV measurement of the NiCo-coated 3D electrodes, it is seen that the Ni/Co/1:4 coated with a high cobalt content is a 41.61% higher current density for HER than the other electrodes. In addition, the current density of the Ni/Co/4:1coated 3D electrode at 1.1 V is 19.67% higher than that of the Ni/Co/1:1-coated 3D electrode and this value is 9.80 times higher than that of the uncoated 3D electrode.…”

“…In the scanned potential range, a small oxidation peak at the potential of around 0.3 V is attributed to the oxidation of Ni­(II) to Ni­(III). On the other hand, the cathodic peak at −0.218 V is related to the Ni­(III) to Ni­(II) reduction. , …”

“…On the other hand, the cathodic peak at −0.218 V is related to the Ni(III) to Ni(II) reduction. 60 , 61 …”

Coordination of the Co2+ and Ni2+ Ions in Tf2N– Based Ionic Liquids: A Combined X-ray Absorption and Molecular Dynamics Study

“… 7 Due to these features, ILs emerged as new media for a variety of applications, such as electroplating, batteries, solar cells, corrosion protection, catalysis, food and pharmaceutical applications. 8 − 14 Moreover, ILs have been found to be suitable as the hydrophobic receiving phase for the separation of target metal ions from aqueous solutions. 15 − 20 Also, thanks to the wide electrochemical windows accessible, they can serve as suitable media for metal electrodepositions.…”

“…In the last two decades, ionic liquids (ILs) attracted much attention as a more sustainable alternative to traditional organic solvents owing to their practically negligible vapor pressure, non-flammability, thermal stability, wide electrochemical windows, good solvation ability for both neutral and charged species, and low toxicity . Due to these features, ILs emerged as new media for a variety of applications, such as electroplating, batteries, solar cells, corrosion protection, catalysis, food and pharmaceutical applications. − Moreover, ILs have been found to be suitable as the hydrophobic receiving phase for the separation of target metal ions from aqueous solutions. − Also, thanks to the wide electrochemical windows accessible, they can serve as suitable media for metal electrodepositions. ,− …”