Investigation of O2 line broadening in nanoporous alumina using gas in scattering media absorption spectroscopy

Ahmed Al-Saudi; Abdulaziz Aljalal; Watheq Al-Basheer; Khaled Gasmi; Samer Qari

doi:10.1007/s00340-020-7404-8

Investigation of O₂ line broadening in nanoporous alumina using gas in scattering media absorption spectroscopy

Ahmed Al-Saudi^*
, Abdulaziz Aljalal
, Watheq Al-Basheer
, Khaled Gasmi
, Samer Qari

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The broadening of the oxygen absorption line P9P9 due to wall collisions of entrapped oxygen gas in nanoporous solid discs of average pore diameters between 70 and 150 nm is studied using GAs in Scattering Media Absorption Spectroscopy (GASMAS) method. A model based on the kinetic theory of gasses is used to find a correlation between the wall-collision broadening and the average pore diameter measured by Mercury Intrusion Porosimetry (MIP). The shape of the pores of investigated samples is found to be more consistent with a model of pores of cylindrical shapes of heights much larger than their diameters.

Original language	English
Article number	63
Journal	Applied Physics B: Lasers and Optics
Volume	126
Issue number	4
DOIs	https://doi.org/10.1007/s00340-020-7404-8
State	Published - 1 Apr 2020

Bibliographical note

Publisher Copyright:
© 2020, Springer-Verlag GmbH Germany, part of Springer Nature.

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)
General Physics and Astronomy

Access to Document

10.1007/s00340-020-7404-8

Cite this

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title = "Investigation of O2 line broadening in nanoporous alumina using gas in scattering media absorption spectroscopy",

abstract = "The broadening of the oxygen absorption line P9P9 due to wall collisions of entrapped oxygen gas in nanoporous solid discs of average pore diameters between 70 and 150 nm is studied using GAs in Scattering Media Absorption Spectroscopy (GASMAS) method. A model based on the kinetic theory of gasses is used to find a correlation between the wall-collision broadening and the average pore diameter measured by Mercury Intrusion Porosimetry (MIP). The shape of the pores of investigated samples is found to be more consistent with a model of pores of cylindrical shapes of heights much larger than their diameters.",

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AU - Al-Saudi, Ahmed

AU - Aljalal, Abdulaziz

AU - Al-Basheer, Watheq

AU - Gasmi, Khaled

AU - Qari, Samer

PY - 2020/4/1

Y1 - 2020/4/1

N2 - The broadening of the oxygen absorption line P9P9 due to wall collisions of entrapped oxygen gas in nanoporous solid discs of average pore diameters between 70 and 150 nm is studied using GAs in Scattering Media Absorption Spectroscopy (GASMAS) method. A model based on the kinetic theory of gasses is used to find a correlation between the wall-collision broadening and the average pore diameter measured by Mercury Intrusion Porosimetry (MIP). The shape of the pores of investigated samples is found to be more consistent with a model of pores of cylindrical shapes of heights much larger than their diameters.

AB - The broadening of the oxygen absorption line P9P9 due to wall collisions of entrapped oxygen gas in nanoporous solid discs of average pore diameters between 70 and 150 nm is studied using GAs in Scattering Media Absorption Spectroscopy (GASMAS) method. A model based on the kinetic theory of gasses is used to find a correlation between the wall-collision broadening and the average pore diameter measured by Mercury Intrusion Porosimetry (MIP). The shape of the pores of investigated samples is found to be more consistent with a model of pores of cylindrical shapes of heights much larger than their diameters.

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