Electrophoretic deposition of silver from organic PDADMAC-stabilized suspensions

Kinzl, Max; Reichmann, Klaus; Andrejs, Lukas

doi:10.1007/s10853-009-3504-x

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…The plot of deposit yield as a function of applied voltage, graphite particles' solid loading (also known as concentration), and deposition time are explained by Hamaker's law. The Hamaker's law expresses the relationship between the deposit mass m(t) and the EPD parameters [21] as:…”

Section: Resultsmentioning

confidence: 99%

Effect of Electrophoretic Deposition Parameters on Coating Thickness and Deposit Yield of Non-Colloidal Graphite Particles

Lau,

Sorrell

2023

Jurnal Teknologi

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Electrophoretic Deposition (EPD) has become a method for fabricating and enhancing electrodes for electrochemical energy storage (EES) devices. This article explores the impact of dominant EPD parameters on the deposit yield and coating thickness of graphite produced from an organic-based graphite particle suspension. The deposit yield follows a linear Hamaker's law at voltages below 50 V, with a deposition time of up to 5 minutes and solid loading between 2.5 to 12.5 mg/mL. The study also demonstrates the successful deposition of negatively charged and non-colloidal sized graphite particles, which are previously dispersed in n-butylamine-acetone without the use of charging or binding additives. This later forms a coating with a relatively strong binding strength of graphite particles on the steel anode. EPD of graphite suspension with a concentration of 5 mg/mL at a deposition voltage of 10 V and 5 minutes deposition time is capable of producing a graphite coating thickness of 70 mm. This research demonstrates the high-yield capability of EPD of organic-based graphite particles on metal anode and provides valuable insight for future investigations into application of binderless graphite suspension particles for electrode materials in energy storage systems.

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Section: Resultsmentioning

confidence: 99%

Effect of Electrophoretic Deposition Parameters on Coating Thickness and Deposit Yield of Non-Colloidal Graphite Particles

Lau,

Sorrell

2023

Jurnal Teknologi

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Nanoparticles Dispersion and the Effect of Related Parameters in the EPD Kinetics

Moreno

Ferrari

2011

Nanostructure Science and Technology

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Electrophoretic Deposition of Hexagonal Boron Nitride Particles from Low Conductivity Suspension

Lau¹,

Samsudin²

2022

JST

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Given that hexagonal boron nitride (hBN) particles are extremely stable in colloidal suspensions due to their low density, they are difficult to deposit via electrophoretic deposition (EPD). Poly (diallyldimethylammonium chloride) (PDDA) is widely used as a polyelectrolyte for ceramic particles because of its strong electrophoretic response. Nevertheless, studies on PDDA as a functionalising agent of hBN particles for EPD remain elusive. Here, hBN particles were functionalised with different amounts of PDDA to investigate effects on suspension stability and EPD yield. Deionised (DI)-water-based hBN particle suspensions with PDDA contents that varied from 0.3 wt% and 0.6 wt% (of hBN basis) were prepared using washed as-received hBN particles. Then, washed and nonwashed PDDA-functionalised hBN particle groups were prepared by subjecting only the former to water washing. Washing, which involved the repeated particle dispersion in DI water and vacuum filtration, successfully reduced the conductivity of the aqueous hBN suspension to 2 µS/cm, which was significantly lower than the conductivities of 180 and 25 µS/cm shown by the as-received particle suspension and PDDA-functionalised particles before washing. This result indicated that washing eliminated the interference of free ions on the suspension stability of hBN particles and EPD yield. In contrast to that of the nonwashed group, the suspension stability of the washed group decreased as the PDDA content was increased. Nevertheless, at 0.3 wt% and 0.6 wt% PDDA, the EPD yields of the washed group were 183% to 31% higher than those of the nonwashed group. This study provided new insight into the EPD of hBN particles using low-cost aqueous suspensions with sustainable ultralow ion conductivity.

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Electrophoretic deposition of silver from organic PDADMAC-stabilized suspensions

Cited by 3 publications

References 13 publications

Effect of Electrophoretic Deposition Parameters on Coating Thickness and Deposit Yield of Non-Colloidal Graphite Particles

Effect of Electrophoretic Deposition Parameters on Coating Thickness and Deposit Yield of Non-Colloidal Graphite Particles

Nanoparticles Dispersion and the Effect of Related Parameters in the EPD Kinetics

Electrophoretic Deposition of Hexagonal Boron Nitride Particles from Low Conductivity Suspension

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