Adsorption of diethylether on single-crystal gold electrodes

Lipkowski, Jacek; Huong, C. Nguyen Van; Hinnen, C.; Parsons, Roger; Chevalet, Jean

doi:10.1016/s0022-0728(83)80275-7

Cited by 82 publications

(30 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The argument is supported by the fact that gold and mercury have rather similar hydrophobic properties 48 and that the data of ∆G I°o btained for all six derivatives at a mercury electrode are on average 9-12 kJ mol -1 less negative ( Figure 12B, open symbols 27,40 ).…”

Section: Comparison With Other Methyl Derivatives Of Uracil Charge Dmentioning

confidence: 79%

“…for water interactions 48 ; n is the number of water molecules substituted by one organic molecule. With the same adsorbate studied, the same interfacial orientation, and rather similar hydrophobic properties of Au(111) and mercury, 48 the main difference in ∆G I°f or the studied uracil derivatives on Au(111) and on mercury needs to be attributed to stronger interactions between the adsorbate and the metal surface in the former case.…”

Section: Comparison With Other Methyl Derivatives Of Uracil Charge Dmentioning

confidence: 99%

See 1 more Smart Citation

Structural and Thermodynamic Aspects of Phase Transitions in Uracil Adlayers. A Chronocoulometric Study

Wandlowski

Hölzle

1996

Langmuir

View full text Add to dashboard Cite

The phase formation of six alkyl derivatives of 2,4-dihydroxypyrimidine on a Au(111) single crystal electrode from aqueous 0.05 M KClO4 has been investigated using chronocoulometry, cyclic voltammetry and phase-sensitive ac voltammetry. As a function of the applied electrode potential and/or the adsorbate concentration uracil (U), 5-methyluracil (5-MU) and 5,6-dimethyluracil (5,6-DMU) assume four different adsorption regions. These are assigned to a "dilute" phase (I), a two-dimensional condensed physisorbed film (II), a partial charge transfer/deprotonation region (III), and a chemisorbed film (IV). Substitution of the N(1)-and/or the N(3)-ring nitrogen with methyl groups prevents the formation of the ordered physisorbed film II. In the case of 1-methyluracil (1-MU) and 3-methyluracil (3-MU) region I is followed immediately by regions III and IV. No indications for the latter two regions were found with 1,3-dimethyluracil, where both ring nitrogen atoms are blocked simultaneously with methyl groups. Quantitative thermodynamic adsorption parameters such as film pressure, Gibbs surface excess, Gibbs energy of adsorption, and electrosorption valency were determined on the basis of chronocoulometric measurements for the "dilute" and the two-dimensional condensed physisorbed film. All molecules studied are planar oriented to the electrode surface in both ordered regions. The corresponding values of the Gibbs energies of adsorption ∆G I°and ∆GII°of the six uracil derivatives on Au(111) indicate weak chemisorption. On the basis of structural and energetic data the formation of the 2D-condensed physisorbed film of U, 5-MU, and 5,6-DMU is interpreted as a replacement of residual interfacial water molecules accompanied by the creation of a 2D network of planar oriented and, via hydrogen bonds, interconnected molecules. The adsorption and phase formation parameters obtained for the six uracil derivatives on Au(111) in regions I and II will be complementary analyzed with selected results on Ag(111) and mercury electrodes. No quantitative thermodynamic data were extracted in regions III and IV.

show abstract

Section: Comparison With Other Methyl Derivatives Of Uracil Charge Dmentioning

confidence: 79%

Section: Comparison With Other Methyl Derivatives Of Uracil Charge Dmentioning

confidence: 99%

Structural and Thermodynamic Aspects of Phase Transitions in Uracil Adlayers. A Chronocoulometric Study

Wandlowski

Hölzle

1996

Langmuir

View full text Add to dashboard Cite

show abstract

“…0.10 V, while the anodic edge ͑displacement by sulfate͒ moves only by about 0.01 V. This asymmetric shift prevents a quantitative evaluation of the adsorption parameters, such as the standard free energy of adsorption and the interaction energy. [24][25][26] The capacity inside the pit ͑at E SCE ϭ 0.00 V) for 10 Ϫ4 M PEG 280 is the same as for bare Au͑111͒ but diminishes to 16 F cm Ϫ2 for 10 Ϫ3 M PEG 280 ͑cf. Table I͒.…”

Section: Resultsmentioning

confidence: 99%

Adsorption of PEG on Au(111) Single-Crystal Electrodes and Its Influence on Copper Deposition

Petri

Kolb

Memmert

et al. 2004

J. Electrochem. Soc.

View full text Add to dashboard Cite

The adsorption of polyethylene glycol ͑PEG͒ on Au͑111͒ for three different molar masses was studied by cyclic voltammetry, capacity measurements, and in situ scanning tunneling microscopy for the first time. New physical insight into the adsorption behavior of this polymer on a solid electrode in neutral Na 2 SO 4 was gained. The formation of a condensed phase has been observed, the stability range depending strongly on the chain length and the concentration of PEG. Because of their importance in electroplating the influence of chloride ions on the PEG adsorption behavior has also been investigated, together with the effect of PEG and chloride on the initial stages of Cu deposition. Addition of chloride does not lead to an increased adsorption of PEG as found for other surfaces ͑e.g., copper͒, but to a simple superposition of both adsorption processes. However, a strong inhibition for copper bulk deposition is observed when both additives are present in solution.

show abstract

“…Significant progress in understanding adsorption phenomena particularly in relation with the role played by the nature and atomic structure of the substrate surfaces has been made by Lipkowski and co-workers using diethylether and pyridine as model molecules [1][2][3][4][5][6][7][8][9][10][11][12]. In the case of pyridine, it has been shown that the strength of the pyridine-metal interaction progressively increases moving from sp to d metals [12].…”

Section: Introductionmentioning

confidence: 99%

Influence of the crystallographic orientation on the reductive desorption of self-assembled monolayers on gold electrodes

Doneux

Steichen

Rache

et al. 2010

Journal of Electroanalytical Chemistry

View full text Add to dashboard Cite

Adsorption of diethylether on single-crystal gold electrodes

Cited by 82 publications

References 18 publications

Structural and Thermodynamic Aspects of Phase Transitions in Uracil Adlayers. A Chronocoulometric Study

Structural and Thermodynamic Aspects of Phase Transitions in Uracil Adlayers. A Chronocoulometric Study

Adsorption of PEG on Au(111) Single-Crystal Electrodes and Its Influence on Copper Deposition

Influence of the crystallographic orientation on the reductive desorption of self-assembled monolayers on gold electrodes

Contact Info

Product

Resources

About