In situ characterization of liquid network structures at high pressure and temperature using X-ray absorption spectroscopy coupled with the Paris-Edinburgh press - Archive ouverte HAL Access content directly
Journal Articles High Pressure Research Year : 2016

In situ characterization of liquid network structures at high pressure and temperature using X-ray absorption spectroscopy coupled with the Paris-Edinburgh press

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J. Pohlenz
  • Function : Author
C. de Grouchy
  • Function : Author
Y. Kono
T. Irifune
  • Function : Author
M. Wilke
  • Function : Author

Abstract

We review recent progress in studying structural properties of liquids using X-ray absorption spectroscopy coupled with the Paris-Edinburgh press at third-generation synchrotron facilities. This experimental method allows for detecting subtle changes in atomic arrangements of melts over a wide pressure-temperature range. It has been also employed to monitor variations of the local coordination environment of diluted species contained in glasses, liquids and crystalline phases as a function of the pressure and temperature. Such information is of great importance for gaining deeper insights into the physico-chemical properties of liquids at extreme condition, including the understanding of such phenomena as liquid-liquid phase transitions, viscosity drops and various transport properties of geological melts. Here, we describe the experimental approach and discuss its potential in structural characterization on selected scientific highlights. Finally, the current ongoing instrumental developments and future scientific opportunities are discussed.
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insu-03596365 , version 1 (03-03-2022)

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A. D. Rosa, J. Pohlenz, C. de Grouchy, B. Cochain, Y. Kono, et al.. In situ characterization of liquid network structures at high pressure and temperature using X-ray absorption spectroscopy coupled with the Paris-Edinburgh press. High Pressure Research, 2016, 36, pp.332-347. ⟨10.1080/08957959.2016.1199693⟩. ⟨insu-03596365⟩
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