We describe a phase-field model for the electrodeposition process that forms dendrites within metal-anode batteries. derive free energy functional model, arriving at system of partial differential equations evolution phase field, lithium-ion concentration, and an electric potential. formulate, discretize, solve set describing coupled electrochemical interactions during battery charge cycle usin...

This study examined the characteristics of calcium phosphate coatings formed on untreated and H2O2-treated titanium substrates by electrodeposition in a modified simulated body fluid (SBF). A porous coating comprising of mainly hydroxyapatite (HA) was formed on the H2O2-treated titanium substrate by electrodeposition. This coating was transformed into carbonate and calcium-deficient HA layers w...

Electrodeposition of platinum and silver into hydrophobic and hydrophilic microporous silicon layers was investigated using chemically-modified microporous silicon electrodes. Hydrophobic microporous silicon enhanced the electrodeposition of platinum in the porous layer. Meanwhile hydrophilic one showed that platinum was hardly deposited within the porous layer and a filmy growth of platinum on...

Abstract. The potentiodynamic experiments of the nickel effects on zinc electrodeposition have been done to understand impact Ni impurities electrowinning Zn from spent pickling liquor. chloride solutions concentrations 90 and 1 g/dm3 were used as electrolytes. latter was also mixed with in experiments. All runs carried out at room temperature 40 mV/s continuous polarization speed 1/s sampling ...

Anodes for solid oxide fuel cells (SOFCs) have been prepared by electrodeposition of either Co or Ni into a layer of porous yttria-stabilized zirconia (YSZ), 60 μm thick. The YSZ, having 65% porosity, was prepared by tape casting with graphite pore formers and was attached to the dense YSZ electrolyte. After adding 10 vol % CeO2 by impregnation of aqueous solutions of CeNO3)3, followed by calci...

A low-cost bio-mass-derived carbon substrate has been employed to synthesize MoS₂@carbon composites through a hydrothermal method. Carbon fibers derived from natural cotton provide a three-dimensional and open framework for the uniform growth of MoS₂ nanosheets, thus hierarchically constructing coaxial architecture. The unique structure could synergistically benefit fast Li-ion and electron tra...

Lithium metal batteries (LMBs) are one of the most promising energy storage technologies that would overcome limitations current Li-ion batteries, based on their low density (0.534 g cm?3), reduction potential (?3.04 V vs Standard Hydrogen Electrode) as well high theoretical capacities (3860 mAh g?1 and 2061 cm?3). The overall cell mass volume be reduced while both gravimetric volumetric densit...

MnO 2 is considered to be a prospective material for lithium-ion batteries anode. However, in practical applications, has shortcomings such as low conductivity, large volume change and high charge transfer resistance, which seriously hinder its commercial application. In this work, are preintercalated with various alkali cations (Na + , or NH 4 ) coating reduced graphene oxide through electrode...

Anodic aluminium oxide (AAO) templates for multi-walled carbon nanotube (MWCNT) growth were produced by anodization of aluminium followed by pulse-reverse electrodeposition of cobalt inside the AAO pores. Cobalt functioned as the catalyst for H2/C2H2 chemical vapour deposition (CVD) growth of fairly well graphitized MWCNTs initiating inside the majority of the AAO pores and quickly growing beyo...