Infrared spectroscopy at high temperature : N2- and O2-broadening coefficients in the ν4 band of CH4

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Abstract

In the present work, we have developed a high-temperature absorption cell for infrared spectroscopy. This absorption cell can contain gases of the room temperature up to 650 K without temperature gradient. The construction of the cell and its technical features are described in detail in this paper. In order to demonstrate the feasibility and the interest of the cell, we have measured the N<inf>2</inf>-, O<inf>2</inf>- and air-broadening coefficients of, respectively, six and three absorption lines in the <sup>ν4</sup> band of methane at four temperatures (350, 425, 500, 575 K). The measurements of these coefficients was realized with a tunable diode-laser spectrometer. The line parameters were obtained by fitting to the experimental profile the Voigt line shape and the Rautian and Galatry models taking into account the collisional narrowing. For these lines, the n parameter of the temperature dependence has been determined.

Original languageEnglish
Pages (from-to)26-31
Number of pages6
JournalJournal of molecular spectroscopy
Volume317
DOIs
Publication statusPublished - 15 Nov 2015

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Infrared spectroscopy
infrared spectroscopy
coefficients
cells
laser spectrometers
Temperature
Methane
Thermal gradients
line shape
Semiconductor lasers
Spectrometers
temperature gradients
methane
Gases
diodes
temperature dependence
air
room temperature
profiles
Air

Keywords

  • CH<inf>4</inf>
  • Collisional-broadening
  • Diode-laser
  • High-temperature
  • Infrared spectroscopy

Cite this

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title = "Infrared spectroscopy at high temperature : N2- and O2-broadening coefficients in the ν4 band of CH4",
abstract = "In the present work, we have developed a high-temperature absorption cell for infrared spectroscopy. This absorption cell can contain gases of the room temperature up to 650 K without temperature gradient. The construction of the cell and its technical features are described in detail in this paper. In order to demonstrate the feasibility and the interest of the cell, we have measured the N2-, O2- and air-broadening coefficients of, respectively, six and three absorption lines in the ν4 band of methane at four temperatures (350, 425, 500, 575 K). The measurements of these coefficients was realized with a tunable diode-laser spectrometer. The line parameters were obtained by fitting to the experimental profile the Voigt line shape and the Rautian and Galatry models taking into account the collisional narrowing. For these lines, the n parameter of the temperature dependence has been determined.",
keywords = "CH<inf>4</inf>, Collisional-broadening, Diode-laser, High-temperature, Infrared spectroscopy",
author = "Laurent Fissiaux and Claude Populaire and Ghislain Blanquet and Muriel Lepere",
year = "2015",
month = "11",
day = "15",
doi = "10.1016/j.jms.2015.06.001",
language = "English",
volume = "317",
pages = "26--31",
journal = "Journal of molecular spectroscopy",
issn = "0022-2852",
publisher = "Academic Press Inc.",

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TY - JOUR

T1 - Infrared spectroscopy at high temperature : N2- and O2-broadening coefficients in the ν4 band of CH4

AU - Fissiaux, Laurent

AU - Populaire, Claude

AU - Blanquet, Ghislain

AU - Lepere, Muriel

PY - 2015/11/15

Y1 - 2015/11/15

N2 - In the present work, we have developed a high-temperature absorption cell for infrared spectroscopy. This absorption cell can contain gases of the room temperature up to 650 K without temperature gradient. The construction of the cell and its technical features are described in detail in this paper. In order to demonstrate the feasibility and the interest of the cell, we have measured the N2-, O2- and air-broadening coefficients of, respectively, six and three absorption lines in the ν4 band of methane at four temperatures (350, 425, 500, 575 K). The measurements of these coefficients was realized with a tunable diode-laser spectrometer. The line parameters were obtained by fitting to the experimental profile the Voigt line shape and the Rautian and Galatry models taking into account the collisional narrowing. For these lines, the n parameter of the temperature dependence has been determined.

AB - In the present work, we have developed a high-temperature absorption cell for infrared spectroscopy. This absorption cell can contain gases of the room temperature up to 650 K without temperature gradient. The construction of the cell and its technical features are described in detail in this paper. In order to demonstrate the feasibility and the interest of the cell, we have measured the N2-, O2- and air-broadening coefficients of, respectively, six and three absorption lines in the ν4 band of methane at four temperatures (350, 425, 500, 575 K). The measurements of these coefficients was realized with a tunable diode-laser spectrometer. The line parameters were obtained by fitting to the experimental profile the Voigt line shape and the Rautian and Galatry models taking into account the collisional narrowing. For these lines, the n parameter of the temperature dependence has been determined.

KW - CH<inf>4</inf>

KW - Collisional-broadening

KW - Diode-laser

KW - High-temperature

KW - Infrared spectroscopy

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U2 - 10.1016/j.jms.2015.06.001

DO - 10.1016/j.jms.2015.06.001

M3 - Article

VL - 317

SP - 26

EP - 31

JO - Journal of molecular spectroscopy

JF - Journal of molecular spectroscopy

SN - 0022-2852

ER -