Publication detail

GC-MS analysis of reaction products in nitrogen and methane gas mixture

POLÁCHOVÁ, L. HORVÁTH, G. WATSON, J. MASON, N. KRČMA, F. ZÁHORAN, M. MATĚJČÍK, Š.

Original Title

GC-MS analysis of reaction products in nitrogen and methane gas mixture

English Title

GC-MS analysis of reaction products in nitrogen and methane gas mixture

Type

miscellaneous

Language

en

Original Abstract

Recent space missions have revolutionized our knowledge of planetary atmospheres in the solar system, most notably those of Mars and Titan. Simultaneously laboratory plasmas have been used to mimic the physical and chemical processes within such planetary atmospheres both to benchmark physico-chemical models and to interpret observations e.g. by providing plausible candidates for both spectral and mass spectrometric studies. In this paper we report the products formed in a gliding arc discharge fed by a 2 or 5% N2-CH4 gas mixture which mimics Titan atmosphere. Gas samples from the discharge exhaust were analyzed by GC-MS. Acetylene, hydrogen cyanide, and acetonitrile were found to be the major products. Minor detected products were: ethane, ethene, cyanogen, propene, propane, propyne, 1,2-propadiene, 1-butene-3-yne, 1,3-butadiene, 1,3-butadiyne, 2-propenenitrile, 2-propanenitril, 2-methylpropanenitrile, 2-methylpropanenitrile, benzene, and toluene. Whilst many of these compounds have been predicted and/or observed in Titan atmosphere the present plasma experiments provides evidence both of the chemical complexity of Titan and the mechanisms by which larger species grow prior to forming the dust that covers much of Titan surface.

English abstract

Recent space missions have revolutionized our knowledge of planetary atmospheres in the solar system, most notably those of Mars and Titan. Simultaneously laboratory plasmas have been used to mimic the physical and chemical processes within such planetary atmospheres both to benchmark physico-chemical models and to interpret observations e.g. by providing plausible candidates for both spectral and mass spectrometric studies. In this paper we report the products formed in a gliding arc discharge fed by a 2 or 5% N2-CH4 gas mixture which mimics Titan atmosphere. Gas samples from the discharge exhaust were analyzed by GC-MS. Acetylene, hydrogen cyanide, and acetonitrile were found to be the major products. Minor detected products were: ethane, ethene, cyanogen, propene, propane, propyne, 1,2-propadiene, 1-butene-3-yne, 1,3-butadiene, 1,3-butadiyne, 2-propenenitrile, 2-propanenitril, 2-methylpropanenitrile, 2-methylpropanenitrile, benzene, and toluene. Whilst many of these compounds have been predicted and/or observed in Titan atmosphere the present plasma experiments provides evidence both of the chemical complexity of Titan and the mechanisms by which larger species grow prior to forming the dust that covers much of Titan surface.

Keywords

Titan atmosphere, discharge products, N2-CH4 gas mixture, gliding arc, GC-MS

Released

24.07.2011

Publisher

IUPAC

Location

Philadelphia

Pages from

10

Pages to

14

Pages count

4

BibTex


@misc{BUT73709,
  author="Lucie {Töröková} and Gabriel {Horváth} and James {Watson} and Nigel {Mason} and František {Krčma} and Miro {Záhoran} and Štefan {Matějčík}",
  title="GC-MS analysis of reaction products in nitrogen and methane gas mixture",
  annote="Recent space missions have revolutionized our knowledge of planetary atmospheres in the solar system, most notably those of Mars and Titan. Simultaneously laboratory plasmas have been used to mimic the physical and chemical processes within such planetary atmospheres both to benchmark physico-chemical models and to interpret observations e.g. by providing plausible candidates for both spectral and mass spectrometric studies. In this paper we report the products formed in a gliding arc discharge fed by a 2 or 5% N2-CH4 gas mixture which mimics Titan atmosphere. Gas samples from the discharge exhaust were analyzed by GC-MS. Acetylene, hydrogen cyanide, and acetonitrile were found to be the major products. Minor detected products were: ethane, ethene, cyanogen, propene, propane, propyne, 1,2-propadiene, 1-butene-3-yne, 1,3-butadiene, 1,3-butadiyne, 2-propenenitrile, 2-propanenitril, 2-methylpropanenitrile, 2-methylpropanenitrile, benzene, and toluene. Whilst many of these compounds have been predicted and/or observed in Titan atmosphere the present plasma experiments provides evidence both of the chemical complexity of Titan and the mechanisms by which larger species grow prior to forming the dust that covers much of Titan surface.",
  address="IUPAC",
  booktitle="Proceedings of ISPC XX",
  chapter="73709",
  howpublished="electronic, physical medium",
  institution="IUPAC",
  year="2011",
  month="july",
  pages="10--14",
  publisher="IUPAC",
  type="miscellaneous"
}