Electrolysis of Co(2+) in phosphate, methylphosphonate, and borate electrolytes effects the electrodeposition of an amorphous highly active water oxidation catalyst as a thin film on an inert anode. Electrodeposition of a catalytically competent species immediately follows oxidation of Co(2+) to Co(3+) in solution. Methylphosphonate and borate electrolytes support catalyst activity comparable t...

Fast charging of lithium-ion (Li-ion) batteries makes it susceptible to lithium plating. In this study, we report the correlation between capacity loss and cell impedance changes in battery due electrodeposition. Li-ion pouch cells with nickel-manganese-cobalt cathode graphite anode were charged at rates varying from 0.5C 6C. The voltage evolution immediately after was monitored identify C-rate...

Electrodeposition of zinc on mild steel in acid chloride solution using as additive, different concentrations of ananas comosus (pineapple) juice extracts, was investigated. Different additive concentrations, plating time, and constant pH conditions were used for the experiments. The electrodeposition of zinc on mild steel was performed using a DC – supply. The surface of the plated steel was e...

ZnO films can be electrodeposited cathodically from aqueous zinc salt solutions in the presence of oxidants like O2 [1]. The electrodeposition of nanoporous ZnO was first demonstrated by addition of water-soluble organic dye molecules with anionic groups such as –SO3 or – COO, which adsorb on the growing ZnO surface, to the electrodeposition bath [2]. More recently, addition of amphiphilic mole...

Electrodeposition of Si films from a Si-containing electrolyte is a cost-effective approach for the manufacturing of solar cells. Proposals relying on fluoride-based molten salts have suffered from low product quality due to difficulties in impurity control. Here we demonstrate the successful electrodeposition of high-quality Si films from a CaCl2 -based molten salt. Soluble SiIV -O anions gene...

Cobalt-nickel (Co-Ni) binary alloy nanowires of different compositions were co-deposited in the nanopores of highly ordered anodic aluminum oxide (AAO) templates from a single sulfate bath using alternating current (AC) electrodeposition. AC electrodeposition was accomplished without modifying or removing the barrier layer. Field emission scanning electron microscope was used to study the morph...

ABSTRACT Aqueous zinc-ion batteries (ZIBs) are a promising battery technology because of low costs and high safety. However, dissolution, self-aggregation irreversible phase changes during charge discharge cathode materials may severely restrict the cycle stability ZIBs. The main objective this work was to prepare more stable material. For purpose, we successfully prepared transition metal Co-d...

The electrodeposition of germanium at elevated temperatures up to 180 °C and pressures was studied from the ionic liquids 1-butyl-1-methylpyrrolidinium dicyanamide and 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide containing [GeCl4(BuIm)2] (where BuIm = 1-butylimidazole) or GeCl4. Cyclic voltammetry (CV), electrochemical quartz crystal microbalance (EQCM), rotating ring-disk e...

This work reports on the electrodeposition of rhodium (Rh) nanowires with a controlled surface morphology synthesized using an anodic aluminum oxide (AAO) template. Vertically aligned Rh nanowires with a smooth and coarse morphology were successfully deposited by adjusting the electrode potential and the concentration of precursor ions and by involving a complexing reagent in the electrolyte so...