Diagnosis of a benzene discharge with a mass-selective spectroscopic technique

被引：34

作者：

Güthe, F ^{[1
]}

Ding, HB ^{[1
]}

Pino, T ^{[1
]}

Maier, JP ^{[1
]}

机构：

[1] Univ Basel, Inst Phys Chem, CH-4056 Basel, Switzerland

来源：

CHEMICAL PHYSICS | 2001年 / 269卷 / 1-3期

关键词：

D O I：

10.1016/S0301-0104(01)00319-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 [物理化学]; 081704 [应用化学];

摘要：

The products formed in a benzene discharge have been probed by resonant two photon ionization spectroscopy. The molecules formed are cooled in a supersonic expansion and mass-analysis combined with spectroscopic information is used to identify the species. By this means styrene, phenylacetylene, methylstyrene, indene, fluorene and tolane are recognized. No six-ring polycyclic aromatic hydrocarbon could be detected. With this method the plasma is sampled at an early stage where the ethynylated and cyclopentafused polycyclic aromatic hydrocarbons are more abundant than the more stable six-ring ones. The coupling of a discharge source to a REMPI detection system enables electronic spectra of neutral molecules to be obtained which can be used to study their role in combustion processes, plasmas as well as in astrophysics. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：347 / 355

页数：9

共 58 条

[1]

Large molecules, radicals, ions, and small soot particles in fuel-rich hydrocarbon flames - Part III: REMPI mass spectrometry of large flame PAHs and fullerenes and their quantitative calibration through sublimation [J].