In situ IR reflectance absorption spectroscopy studies of pyridine adsorption at the Au(110) electrode surface

Li, Nanhai; Zamlynny, Vlad; Lipkowski, Jacek; Henglein, F.; Pettinger, Bruno

doi:10.1016/s0022-0728(02)00668-x

Cited by 67 publications

(131 citation statements)

References 32 publications

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“…39 Also, the eventual effect of the electrode potential on the orientation of the dynamic dipole moment with respect to the normal to the surface would affect the value of ε ′ j i . [39][40] For all these reasons, it has to be assumed that the absorption molar coefficients in equations (1-3) can be different from those that would be obtained in solution.…”

Section: Methodsmentioning

confidence: 99%

Surface Acid–Base Properties of Anion-Adsorbed Species at Pt(111) Electrode Surfaces in Contact with CO₂-Containing Perchloric Acid Solutions

et al. 2016

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Abstract:Carbonate and bicarbonate adsorption on Pt(111) electrodes from CO 2 saturated acidic solutions is investigated by cyclic voltammetry and Fourier Transform Infrared Reflection Absorption Spectroscopy (FT-IRRAS). Spectroscopic results show carbonate and bicarbonate adsorption even at pH=1, where bulk concentration of these anions is negligible. Moreover, analysis of the potential dependence of band intensities corresponding to adsorbed carbonate and bicarbonate reveals an effect of the electrode potential on the surface acid-base equilibrium. In this regards, increasing potentials favor bicarbonate deprotonation, leading to carbonate formation. A tentative thermodynamic analysis is given to rationalize these trends.

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Section: Methodsmentioning

confidence: 99%

Surface Acid–Base Properties of Anion-Adsorbed Species at Pt(111) Electrode Surfaces in Contact with CO₂-Containing Perchloric Acid Solutions

et al. 2016

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“…The appearance of bipolar bands points to changes in the hydration, coordination, structure of a molecule between the and thus between desorbed-adsorbed (reduced-oxidized) states. SNIFTIRS was used to study the potential-dependent adsorption of inorganic ions from the electrolyte solution on the electrode surface and the structure of the electrical double layer [72,76], as well as the potential-driven adsorptiondesorption process of small organic molecules such as pyridine, L-phenylalanine or 2-mercaptobenzimidazole on the Au(111) electrode surface [78][79][80]. Changes in the orientation of electroactive molecules adsorbed on the electrode surface due to an oxidation-reduction reaction were also extensively studied by means of potential modulation IRRAS [24,70].…”

Section: Irras Techniques With the Modualtion Of The Electrode Potentialmentioning

confidence: 99%

Application of Polarization Modulation Infrared Reflection Absorption Spectrosocpy Under Electrochemical Control for Structural Studies of Biomimetic Assemblies

Brand

2015

Zeitschrift Für Physikalische Chemie

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An ideal bioanalytical method would allow carrying out sensitive, selective, reproducible, fast, and in situ chemical measurements of the composition, structure and function of complex biological systems. Physical chemistry possesses advanced structure analyzing techniques which are suitable to solve, at a sub-molecular level, the structure of biomolecules. However, the prerequisite of the presence of the electrolyte solution limits the number of applicable structure analyzing techniques. Infrared spectroscopy is one of the most powerful analytical techniques used to identify the structure of biomolecules, monitor structural changes under various experimental environments and physical states. In addition, infrared reflection absorption spectroscopy (IRRAS) has been successfully applied to study supramolecular films at the solid|liquid interface. Assemblies of biomolecules belong to a particularly demanding because they bring specific for the maintenance of their functions experimental requirements which have to be taken into account planning in situ spectroelectrochemical experiments. In this paper potnential of in situ IRRAS under electrochemical control for studies of structural changes in assemblies of biomolecules such as lipid bilayers and protein films is described. Studies of different classes of biomolecules bring certain experimetnal conditions concerning the electrolyte composition, pH value, temperature or chemical nature of the solid support, which have to be fulfilled. Obviously, these conditons may significantly restrict the applicability of the in situ PM IRRAS. The selection of the solid substrate with required optical and electrical properties, the optical window and the electrolyte composition have to be adapted to the needs of biomolecules. Adjustement of experimetnal conditions as well as possibilites of the enlargement of the in situ PM IRRAS for studies of biomimetic assemblies is reviewed in this paper. Furthermore, experimetnal resutls reporting potenial driven changes in models of cell membranes and protein films are reviewed. Pioneering studies aiminig at the determination of structural changes in lipid membranes exposed to physiological electric fields and interacting simultaneously with protiens are described.

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“…Compared to SERS, SEIRAS has a straightforward surface selection rule and does not require the ORC pretreatment in a chloride electrolyte for activation. Several possible configurations have been suggested for (sub) monolayer Py adsorption on different metal surfaces, including flat-lying, N-end-on, edge-tilted, plane-tilted and ␣-pyridyl ones [14][15]18,33,44,[57][58][59][60][61][62][63]. Haq and King determined a N-end-on configuration for Py on Cu(1 1 0) in a UHV system based on external IRAS measurement [44], while based on the SERS selection rule, Zuo and Jagodzinski [18] proposed a predominant formation of ␣-pyridyl species on Cu nanoparticles formed on a Al foil by a metathesis reaction.…”

Section: In Situ Seiras On Cu-on-si Electrodementioning

confidence: 99%

Seeded growth fabrication of Cu-on-Si electrodes for in situ ATR-SEIRAS applications

Wang

Yan

Huo

et al. 2007

Electrochimica Acta

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In situ IR reflectance absorption spectroscopy studies of pyridine adsorption at the Au(110) electrode surface

Cited by 67 publications

References 32 publications

Surface Acid–Base Properties of Anion-Adsorbed Species at Pt(111) Electrode Surfaces in Contact with CO₂-Containing Perchloric Acid Solutions

Surface Acid–Base Properties of Anion-Adsorbed Species at Pt(111) Electrode Surfaces in Contact with CO₂-Containing Perchloric Acid Solutions

Application of Polarization Modulation Infrared Reflection Absorption Spectrosocpy Under Electrochemical Control for Structural Studies of Biomimetic Assemblies

Seeded growth fabrication of Cu-on-Si electrodes for in situ ATR-SEIRAS applications

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In situ IR reflectance absorption spectroscopy studies of pyridine adsorption at the Au(110) electrode surface

Cited by 67 publications

References 32 publications

Surface Acid–Base Properties of Anion-Adsorbed Species at Pt(111) Electrode Surfaces in Contact with CO2-Containing Perchloric Acid Solutions

Surface Acid–Base Properties of Anion-Adsorbed Species at Pt(111) Electrode Surfaces in Contact with CO2-Containing Perchloric Acid Solutions

Application of Polarization Modulation Infrared Reflection Absorption Spectrosocpy Under Electrochemical Control for Structural Studies of Biomimetic Assemblies

Seeded growth fabrication of Cu-on-Si electrodes for in situ ATR-SEIRAS applications

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Surface Acid–Base Properties of Anion-Adsorbed Species at Pt(111) Electrode Surfaces in Contact with CO₂-Containing Perchloric Acid Solutions

Surface Acid–Base Properties of Anion-Adsorbed Species at Pt(111) Electrode Surfaces in Contact with CO₂-Containing Perchloric Acid Solutions