scholarly journals Comparison of two means of attachment of an organometallic acid on gold surfaces by combining X-ray photoelectron spectroscopy and IR reflection spectroscopy

1998 ◽  
pp. 1727-1728 ◽  
Author(s):  
Caroline Chavigny ◽  
Franck Le Bideau ◽  
Claire-Marie Pradier ◽  
Gérard Jaouen ◽  
Claire-Marie Pradier ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Reflection Spectroscopy ◽  
Gold Surfaces ◽  
X Ray ◽  
Ir Reflection

X-ray Photoelectron Spectroscopy Sulfur 2p Study of Organic Thiol and Disulfide Binding Interactions with Gold Surfaces

Langmuir ◽  
1996 ◽  
Vol 12 (21) ◽  
pp. 5083-5086 ◽  
Author(s):  
David G. Castner ◽  
Kenneth Hinds ◽  
David W. Grainger
Keyword(s):  
Photoelectron Spectroscopy ◽  
Gold Surfaces ◽  
Binding Interactions ◽  
X Ray

scholarly journals Sulfamide chemistry applied to the functionalization of self-assembled monolayers on gold surfaces

2017 ◽  
Vol 13 ◽  
pp. 648-658 ◽  
Author(s):  
Loïc Pantaine ◽  
Vincent Humblot ◽  
Vincent Coeffard ◽  
Anne Vallée
Keyword(s):  
Photoelectron Spectroscopy ◽  
Self Assembled Monolayers ◽  
Gold Surfaces ◽  
Water Contact ◽  
X Ray ◽  
Infrared Reflection Absorption Spectroscopy ◽  
Infrared Reflection ◽  
End Groups ◽  
Assembled Monolayers ◽  
Self Assembled

Aniline-terminated self-assembled monolayers (SAMs) on gold surfaces have successfully reacted with ArSO2NHOSO2Ar (Ar = 4-MeC6H4 or 4-FC6H4) resulting in monolayers with sulfamide moieties and different end groups. Moreover, the sulfamide groups on the SAMs can be hydrolyzed showing the partial regeneration of the aniline surface. SAMs were characterized by water contact angle (WCA) measurements, Fourier-transform infrared reflection absorption spectroscopy (IRRAS) and X-ray photoelectron spectroscopy (XPS).

Preparation of Protective Films Containing Molybdate for Self-Healing of a Scratched Iron Surface

CORROSION ◽  
2000 ◽  
Vol 56 (9) ◽  
pp. 901-909 ◽  
Author(s):  
K. Aramaki
Keyword(s):  
Photoelectron Spectroscopy ◽  
Sodium Molybdate ◽  
Anodic Process ◽  
Self Healing ◽  
Reflection Spectroscopy ◽  
Ammonium Heptamolybdate ◽  
X Ray ◽  
Infrared Reflection ◽  
Protective Films ◽  
Infrared Reflection Spectroscopy

Abstract Nonchromate, self-healing films protective against corrosion of Fe were assessed by polymerization of 1,2-bis(triethoxysilyl)ethane ([C2H5O]3Si[CH2]2-Si(OC2H5]3; BTESE) containing ammonium heptamolybdate ([NH4]6Mo7O244H2O), which was combined tightly with ferric ion (Fe3+) on the surface of an Fe electrode passivated in aerated 0.1 M sodium molybdate (Na2MoO4). After the electrode surface was scratched crosswise with a knife-edge, the electrode was immersed in an aerated 0.1 M sodium chloride (NaCl) solution at 30°C for > 4 h, and then polarization curves were measured in the solution potentiodynamically. The anodic process of Fe corrosion was suppressed markedly by passivation of the scratched surface with molybdate ion (MoO42−) oozing from the film and O2 diffusing through the scratch. The surface covered with the film was characterized by x-ray photoelectron spectroscopy, Fourier transform infrared reflection spectroscopy, and electron probe microanalysis.

scholarly journals Synthesis and self-assembly of thiol-modified tellurophenes

2018 ◽  
Vol 96 (10) ◽  
pp. 929-933 ◽  
Author(s):  
Gabrielle C. Hoover ◽  
Jennifer Ham ◽  
Connie Tang ◽  
Elisa I. Carrera ◽  
Dwight S. Seferos
Keyword(s):  
Photoelectron Spectroscopy ◽  
Self Assembly ◽  
Gold Electrode ◽  
Gold Surfaces ◽  
X Ray ◽  
Surface Active ◽  
Concentrated Solution ◽  
Blocking Experiment

An asymmetric thiol-modified tellurophene was designed and synthesized, and the ability of the compound to form a monolayer on a gold electrode was confirmed. The surface-active tellurophene was synthesized using Cadiot–Chodkiewicz coupling followed by ring closing and thiol modification. The tellurophene compound forms a monolayer on gold surfaces from a concentrated solution within 24 h. The ability of the compound to conjugate to gold is confirmed by X-ray photoelectron spectroscopy (XPS). A surface blocking experiment was used to evaluate the extent of formation of a monolayer on a gold electrode.

Influence of BHF Treatments on Hydrogen-Terminated Si(100) Surfaces

1997 ◽  
Vol 477 ◽  
Author(s):  
T. Osada ◽  
Y. Kawazawa ◽  
S. Miyazaki ◽  
M. Hirose
Keyword(s):  
Photoelectron Spectroscopy ◽  
Treatment Time ◽  
Ionic Species ◽  
Total Reflection ◽  
Attenuated Total Reflection ◽  
The Other ◽  
Reflection Spectroscopy ◽  
X Ray ◽  
Molar Ratios ◽  
Ft Ir

ABSTRACTThe hydrogen bonding features of Si(100) surfaces treated with BHF (NH4F/HF/H2O) have been studied by Fourier transform infrared attenuated total reflection spectroscopy (FT-IR-ATR). The amount of residual silicon-fluorine bonds on Si(100) surfaces has been evaluated by X-ray photoelectron spectroscopy (XPS). It is found that Si-H3 bonds appears to be preferentially removed by OH ions so as to increase the surface SiH2 and SiH bonds. On the other hand, it is likely that fluorine-containing ionic species such as HF2 might attack the backbonds of surface hydrides to produce Si-H3 and Si-F bonds. ATR spectra have shown that a BHF treated Si(100) surface in 5∼10% NH4F with molar ratios of HF/NH4F=0.37∼0.56 (pH=3.7∼4.0) at a treatment time of 5 minutes is atomically flatter than that treated in BHF containing 15∼20% NH4F. This is because the amount of residual Si-F bonds on Si(100) increases with HF2 concentration in BHF and these Si-F bonds enhance attacking of silicon backbonds of Si-F bond by OH− and HF2− ions.

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