Comparative study of the adsorption of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mrow><mml:msubsup><mml:mrow><mml:mtext>SO</mml:mtext></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow><mml:mrow><mml:mn>2</mml:mn><mml:mo>-</mml:mo></mml:mrow></mml:msubsup><mml:mo>/</mml:mo><mml:msubsup><mml:mrow><mml:mtext>HSO</mml:mtext></mml:mrow><mml:mrow><mml:mn>4</mml:mn></mml:mrow><mml:mrow><mml:mo>-</mml:mo></mml:mrow></mml:msubsup></mml:mrow></mml:math> and Cl−

Berkesi, Kata; Horváth, Dávid; Németh, Zoltán; Varga, K.; Péter, László; Pintér, T.

doi:10.1016/j.jelechem.2013.11.021

Cited by 7 publications

(4 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At without chloride ions and [Cl − ]:[Au + ] = 16:1, their peak currents are 0.54 mA cm −2 and 0.65 mA cm −2 respectively and the corresponding peak potentials are −0.95 V and −0.92 V. The results indicate that chloride ions do not change the initial electroreduction potential of Au(I) but increase its reduction velocity. Berkesi et al 18 reported that chloride ions could absorb on gold electrode. Therefore, we can deduce that the adsorbed chloride ions on gold electrode capture Au(I) to form a weak complex and thereby accelerate the reduction of Au(I).…”

Section: Resultsmentioning

confidence: 99%

“…Whereas, the effects of chloride ions on the stability of gold sulfite complex in alkaline media is still unknown. Berkesi et al 18 have studied the adsorption behaviors of SO 4 2− /HSO 4 − and chloride ions on noble metal electrodes by in situ radiotracer method. They concluded that the absorption ability of chloride ions on the polycrystalline Pt and Au electrodes was stronger than that of SO 4 2− /HSO 4 − ions.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Insights into the Effects of Chloride ions on Cyanide-Free Gold Electrodeposition

Yang

Jin

et al. 2020

J. Electrochem. Soc.

View full text Add to dashboard Cite

It is very simple and convenient using the commercial chloroauric acid instead of sodium gold sulfite as the main salt in the Au(I) sulfite electrodeposition bath. In this paper, the effects of chloride ions on cyanide-free Au(I) electrodeposition in the gold sulfite bath are carefully investigated. Both UV-vis absorption spectroscopy and visual inspection reveal that chloride ions suppress the disproportionation reaction of Au(I) and improve the bath stability. Cyclic voltammetry indicates that chloride ions promote the cathodic reduction of Au(I). EC-SERS spectra elucidate that in the sodium sulfite solution, SO 3 2− ions firstly adsorb on the gold electrode, then experience a structural transformation (SO 3 2− → S 2 O 5 2−), and last electroreduce to) as the potential shifts negatively. In the gold sulfite electrolytes, the cathodic reduction of Au(I) and chloride ions hinder the reduction of S 2 O 5 2− ions. The gold coatings obtained from the gold sulfite electrolyte containing chloride ions present in fine and pure grains without chlorine and sulfur inclusion.

show abstract

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Insights into the Effects of Chloride ions on Cyanide-Free Gold Electrodeposition

Yang

Jin

et al. 2020

J. Electrochem. Soc.

View full text Add to dashboard Cite

show abstract

“…Assuming that the sulfate desorbed from the surface is quickly transported to bulk by flowing DI water, sulfate desorption can be represented by equation [2]: where k d is desorption rate constant, [S] is the surface concentration of adsorbed ions and y is reaction order. It should be noted here that [S] includes both adsorbed sulfate and incorporated cations.…”

Section: Resultsmentioning

confidence: 99%

“…Removal of adsorbed sulfate based contaminants by DI rinsing is an important step during silicon processing. While sulfate adsorption onto metal surfaces, such as Au, Pt, Ag, Cu, has been studied extensively, [1][2][3] measurement of sulfate adsorption onto dielectric surfaces has received only scant attention. In this study, sulfate adsorption onto and desorption from SiO 2 surfaces was measured using a quartz crystal microbalance technique with dissipation monitoring capability (QCM-D).…”

mentioning

confidence: 99%

Sulfate Adsorption onto and Desorption from Silicon Dioxide Films

Raghavan

2016

ECS J. Solid State Sci. Technol.

View full text Add to dashboard Cite

Sulfate ion adsorption onto and desorption from silicon dioxide surface has been investigated using a quartz crystal microbalance with dissipation monitoring capability (QCM-D). A viscoelastic model was used to calculate adsorption/desorption amount. Experimental results indicate that the adsorption from Na2SO4 and K2SO4 solutions at a pH of 6.8 results in the formation of a multilayer sulfate film with co-adsorption of Na+ or K+ ions. Sulfate ion uptake varied linearly with sulfate concentration in the range 0.01 M to 0.6 M. The first order rate constant for sulfate desorption with DI water is approximately 0.04 s−1 and 0.12s−1 for flow rates of 0.2 ml/min and 1.0 ml/min, respectively.

show abstract

Electrochemical Flow Reactor Design Allows Tunable Mass Transport Conditions for Operando Surface Enhanced Infrared Absorption Spectroscopy

et al. 2023

View full text Add to dashboard Cite

In situ attenuated total reflection surface enhanced infrared absorption spectroscopy (ATR‐SEIRAS) is often used to investigate the near‐surface electrocatalytic reaction environment. However, there is a gap in directly correlating the near‐surface reaction environment with electrocatalytic reaction rates. To that end, we designed an electrochemical flow reactor for operando electrochemical ATR‐SEIRAS and demonstrate its capability with the CO2 reduction reaction (CO2RR). Roughened gold catalyst thin films are prepared on ATR silicon crystals as a model system to probe local species under CO2RR conditions in 0.1 M KHCO3. We measured changes in the interfacial CO2 concentration as a function of applied potential and electrolyte flow rate in operando, allowing us to correlate the changes in reaction rates with the observed CO2 concentration. Including the choice of the catalyst and electrolyte, coupling hydrodynamic control with ATR‐SEIRAS in this platform enables investigations of how the local microenvironment affects the activity and selectivity of electrochemical reactions.

show abstract

Comparative study of the adsorption of SO42-/HSO4- and Cl−

Cited by 7 publications

References 38 publications

Insights into the Effects of Chloride ions on Cyanide-Free Gold Electrodeposition

Insights into the Effects of Chloride ions on Cyanide-Free Gold Electrodeposition

Sulfate Adsorption onto and Desorption from Silicon Dioxide Films

Electrochemical Flow Reactor Design Allows Tunable Mass Transport Conditions for Operando Surface Enhanced Infrared Absorption Spectroscopy

Contact Info

Product

Resources

About