Complexing power of alkanesulfonate ions: the lead-methanesulfonate system

Capelato, Milton Duffles; Nóbrega, J.A.; Neves, E. F. A.

doi:10.1007/bf00249661

Cited by 15 publications

(4 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Complex compounds with a neutral or negative charge, adsorbed on the surface, would facilitate the lead dioxide crystallization on a positively charged electrode surface. Similar phenomena for the processes occurring in the limiting current region have been described in [20].…”

Section: Early Stages Of Nucleation and Growth Of Lead Dioxidementioning

confidence: 55%

Electrocrystallization of lead dioxide: Influence of early stages of nucleation on phase composition

Shmychkova

Luk’yanenko

Piletska

et al. 2015

Journal of Electroanalytical Chemistry

View full text Add to dashboard Cite

Section: Early Stages Of Nucleation and Growth Of Lead Dioxidementioning

confidence: 55%

Electrocrystallization of lead dioxide: Influence of early stages of nucleation on phase composition

Shmychkova

Luk’yanenko

Piletska

et al. 2015

Journal of Electroanalytical Chemistry

View full text Add to dashboard Cite

“…Sulfuric acid has been used for many years in the electroplating industry because it is a low cost electrolyte. Methanesulfonic acid presents an excellent metal salt solubility, high conductivity, stability, wide operating window, 18 a relatively low toxicity and good biodegradability. 3 Our study aims at investigating how the tin electrodeposition process on a model gold electrode surface differs between these two acidic electrolyte solutions, in order to understand in more detail the effect of the MSA electrolyte.…”

mentioning

confidence: 99%

Voltammetric Study of Tin Electrodeposition on Polycrystalline Gold from Sulfuric and Methanesulfonic Acid

Aranzales¹,

Wijenberg²,

Koper³

2019

J. Electrochem. Soc.

View full text Add to dashboard Cite

In this work, we have studied tin electrodeposition on polycrystalline gold electrodes from two different supporting electrolytes: sulfuric acid (SA) and methanesulfonic acid (MSA), both of them commonly used in the industry. This work aims to understand the effect of the different electrolyte anions on the deposition process. We show at least three different tin deposition mechanisms on gold: irreversible adsorption, underpotential deposition, and overpotential (bulk) deposition. Underpotential deposition leads to the formation of a layer of tin in SA and MSA with a coverage around θ Sn(H 2 SO 4) = 0.45 ML (monolayer) and θ Sn(CH 3 SO 3 H) = 0.42 ML, respectively. The UPD Sn layer is however somewhat uncharacteristic as it is associated with island formation and surface alloying. Cyclic voltammograms in an extended potential range showed five distinct peaks: two cathodic peaks associated with tin underpotential and overpotential deposition, and three main anodic peaks, corresponding to the oxidation of the bulk Sn, of the AuSn intermetallic layer, and of the adsorbed Sn(II) to Sn(IV). Both voltammetric and rotating disk electrode measurements show that the kinetics of tin electrodeposition in MSA is slower than in SA, which we ascribe to Sn-MSA complex formation in solution. Slow Sn deposition in MSA promotes AuSn formation, in contrast to SA in which bulk tin deposition is more prominent. Complete Levich-type mass transport control of tin deposition in SA and MSA was only reached at low scan rate due to concurrent HER on the uncovered gold surface during the deposition process at higher scan rates. An unexpected surface-confined passivation process is observed in both electrolytes.

show abstract

“…45 The formation of metal complexes between lead(II) and methanesulfonate ions has been studied by polarography on a dropping mercury electrode. 59 The authors describe the stepwise formation of the complexes [Pb(CH 3 SO 3 )] + , [Pb (CH 3 SO 3 ) 2 ] and [Pb(CH 3 SO 3 ) 3 ] − and determined the overall stability constants β i (i = 3). These values are very small, in agreement with the weak tendency of the methanesulfonate ion to form complexes in aqueous solution.…”

Section: Complex Formation In Solutionmentioning

confidence: 99%

Methanesulfonic acid (MSA) in clean processes and applications: a tutorial review

Binnemans,

Jones

2024

Green Chem.

View full text Add to dashboard Cite

show abstract

Complexing power of alkanesulfonate ions: the lead-methanesulfonate system

Cited by 15 publications

References 9 publications

Electrocrystallization of lead dioxide: Influence of early stages of nucleation on phase composition

Electrocrystallization of lead dioxide: Influence of early stages of nucleation on phase composition

Voltammetric Study of Tin Electrodeposition on Polycrystalline Gold from Sulfuric and Methanesulfonic Acid

Methanesulfonic acid (MSA) in clean processes and applications: a tutorial review

Contact Info

Product

Resources

About