Effects of the forced convection and current density on the electrodeposition of Zn-Fe-Mo alloys

Costa, Josiel Martins; Hori, Mariana Sayuri; Neto, Ambrósio Florêncio de Almeida

doi:10.1016/j.chemphys.2019.110502

Cited by 14 publications

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These studies, however, mainly focused on fluid-solid interaction to determine permeability (20)(21)(22), and there was no externally applied electric field during dendritic solidification, which is fundamentally different with what we described here. Microfluidic-based and rotating disk approaches have observed dendrite growth in the presence of an externally applied pressure-driven flow and shear flow, respectively, during electrodeposition (18,(23)(24)(25)(26)(27)(28). These studies demonstrated the effect of flow on the morphological changes of dendrite, but flow was not correlated with the initial appearance of ramification and the relation among electroconvection, applied flow, and the kinetics of dendrite growth was missing.…”

Section: Introductionmentioning

confidence: 99%

Suppression of dendrite growth by cross-flow in microfluidics

Meghann

Chen

et al. 2021

Sci. Adv.

View full text Add to dashboard Cite

Formation of rough, dendritic deposits is a critical problem in metal electrodeposition processes and could occur in next-generation, rechargeable batteries that use metallic electrodes. Electroconvection, which originates from the coupling of the imposed electric field and a charged fluid near an electrode surface, is believed to be responsible for dendrite growth. However, few studies are performed at the scale of fidelity where root causes and effective strategies for controlling electroconvection and dendrite growth can be investigated in tandem. Using microfluidics, we showed that forced convection across the electrode surface (cross-flow) during electrodeposition reduced metal dendrite growth (97.7 to 99.4%) and delayed the onset of electroconvective instabilities. Our results highlighted the roles of forced convection in reducing dendrite growth and electroconvective instabilities and provided a route toward effective strategies for managing the consequences of instability in electrokinetics-based processes where electromigration dominates ion diffusion near electrodes.

show abstract

Section: Introductionmentioning

confidence: 99%

Suppression of dendrite growth by cross-flow in microfluidics

Meghann

Chen

et al. 2021

Sci. Adv.

View full text Add to dashboard Cite

show abstract

“…Ni-Mo alloy [6][7][8][9] , Co-Mo alloy [10][11][12] , Ni-Co-Mo alloy [13] and other iron group element alloys [14][15][16][17] . Among them, the content of W [18,19] and Mo [20,21] is critical to the performance of the coating.…”

Section: Introductionmentioning

confidence: 99%

Preparation and electrochemical behavior of amorphous Co-Mo coating with high content of Mo

Tian

et al. 2022

Preprint

View full text Add to dashboard Cite

At present, alloy materials have been widely used as wear-resistant coatings due to good mechanical properties. In this paper, electrodeposition was used to prepare the Co-Mo coating. The electrochemical behavior of the deposition of alloy and the phase composition, morphology, composition and property of the coating have been studied. The study of process parameters found that when the concentration of Na2Mo4 is 0.05mol/L, the concentration of C6H5Na3O7 is 0.15mol/L, the pH of the solution is 7, and the temperature is 50℃, the content of Mo in Co-Mo coating is 39.56%, and the microhardness reaches the maximum value of 503HV. The study of electrochemical behavior found that when the concentration of Na2Mo4 is 0.05mol/L, the concentration of C6H5Na3O7 is 0.15mol/L, the pH of the solution is 7 and the temperature is 50℃, the most positive deposition potential, maximum exchange current density and minimum charge transfer impedance were obtained, which explained why the best performance coating can be obtained under this condition.

show abstract

“…Currently, the more widely used alloy coatings mainly include Ni-Co alloy, Ni-W alloy [1,2], Co-W alloy [3][4][5], Ni-Mo alloy [6][7][8][9], Co-Mo alloy [10][11][12], Ni-Co-Mo alloy [13], and other iron group element alloys [14][15][16][17]. Among them, the content of W [18,19] and Mo [20,21] is critical to the performance of the coating.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Electrochemical Behavior of an Amorphous Co–Mo Coating with a High Content of Mo

Tian

et al. 2022

Coatings

View full text Add to dashboard Cite

At present, alloy materials are being widely used as wear-resistant coatings due to good mechanical properties. In this paper, electrodeposition was used to prepare a Co–Mo coating. The influence of parameters on the phase, morphology, composition, and property of the coating has been studied, and the electrochemical mechanism has been deeply studied. The study of process parameters found that when the concentration of Na2Mo4 is 0.05 mol/L, the concentration of C6H5Na3O7 is 0.15 mol/L, the pH of the solution is 7, and the temperature is 50 °C, the content of Mo in a Co–Mo coating is 39.56%, and the microhardness reaches the maximum value of 503 HV. The study of electrochemical behavior found that the optimization of process parameters bringsa positive shift in the reduction potential, an increase in the exchange current density, and a decrease in charge transfer impedance. The microhardness of a Co–Mo coating prepared with the leaching solution of Mo-containing waste after component control of the plating solution is 483.6 HV, which is valuable to the high-value recycling of Mo secondary resources.

show abstract

Effects of the forced convection and current density on the electrodeposition of Zn-Fe-Mo alloys

Cited by 14 publications

References 20 publications

Suppression of dendrite growth by cross-flow in microfluidics

Suppression of dendrite growth by cross-flow in microfluidics

Preparation and electrochemical behavior of amorphous Co-Mo coating with high content of Mo

Preparation and Electrochemical Behavior of an Amorphous Co–Mo Coating with a High Content of Mo

Contact Info

Product

Resources

About