IN-SITU STUDIES OF ELECTROCHEMICAL INTERFACES USING X-RAY RADIATION AT GRAZING ANGLES. APPLICATION TO LIQUID MERCURY

AbstractSurface x-ray scattering has been used to study in-situ the structure of Pb monolayers electrochemically adsorbed on Ag (111) electrodes. Pb forms an incommensurate, hexagonal two-dimensional (2D) solid, which is rotated approximately 4.5° from the substrate symmetry directions and compressed relative to bulk Pb. Between monolayer formation and bulk deposition, the Pb-Pb near neighbor distance decreases linearly with applied potential. Due to the chemical equilibrium between the Pb monolayer and the Pb in solution, the isothermal compressibility of the monolayer can be measured and is in good agreement with that calculated for a 2D non-interacting free electron gas model of the monolayer. It is observed that the intensity of surface diffraction from the Ag substrate (the Ag crystal truncation rod) decreases when the Pb monolayer is adsorbed, although the cause of this is not known.

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Origin and development of residual stresses in the NiNiO system: in-situ studies at high temperature by X-ray diffraction

Materials Science and Engineering A ◽

10.1016/0921-5093(93)90504-8 ◽

1993 ◽

Vol 160 (1) ◽

pp. 113-126 ◽

Cited By ~ 59

Author(s):

Chun Liu ◽

Anne-Marie Huntz ◽

Jean-Lou Lebrun

Keyword(s):

High Temperature ◽

Residual Stresses ◽

X Ray Diffraction ◽

X Ray ◽

In Situ Studies

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The Power of in-Situ Studies: How X-ray Absorption Spectroscopy Can Help to Develop PEMFC Catalysts with Increased Activity and Stability

ECS Meeting Abstracts ◽

10.1149/ma2015-02/37/1306 ◽

2015 ◽

Keyword(s):

Absorption Spectroscopy ◽

X Ray ◽

In Situ Studies ◽

X Ray Absorption ◽

Increased Activity

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In Situ X-Ray Techniques for Electrochemical Interfaces

Annual Review of Analytical Chemistry ◽

10.1146/annurev-anchem-091020-100631 ◽

2021 ◽

Vol 14 (1) ◽

Author(s):

Bruna F. Baggio ◽

Yvonne Grunder

Keyword(s):

Annual Review ◽

Publication Date ◽

Time Resolved ◽

X Ray ◽

X Ray Scattering ◽

Recent Developments ◽

In Operando ◽

Electrochemical Interfaces ◽

Ray Scattering

This article reviews progress in the study of materials using X-ray-based techniques from an electrochemistry perspective. We focus on in situ/in operando surface X-ray scattering, X-ray absorption spectroscopy, and the combination of both methods. The background of these techniques together with key concepts is introduced. Key examples of in situ and in operando investigation of liquid–solid and liquid–liquid interfaces are presented. X-ray scattering and spectroscopy have helped to develop an understanding of the underlying atomic and molecular processes associated with electrocatalysis, electrodeposition, and battery materials. We highlight recent developments, including resonant surface diffraction and time-resolved studies. Expected final online publication date for the Annual Review of Analytical Chemistry, Volume 14 is June 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

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