Experimental study of nitropropane pyrolysis with molecular-beam mass spectrometry and tunable synchrotron VUV photoionization. Part I. The flow reactor pyrolysis of 1-nitropropane

2021 ◽  
Vol 155 ◽  
pp. 105051
Author(s):  
Yongdi He ◽  
Jinou Song ◽  
Yuan Zhuang ◽  
Jiuzhong Yang ◽  
Zhongwei Meng ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Experimental Study ◽  
Molecular Beam ◽  
Flow Reactor ◽  
Molecular Beam Mass Spectrometry ◽  
Vuv Photoionization

Progress in Fixed-Photon-Energy Time-Efficient Double Imaging Photoelectron/Photoion Coincidence Measurements in Quantitative Flame Analysis

2016 ◽  
Vol 230 (8) ◽  
Author(s):  
Daniel Felsmann ◽  
Arnas Lucassen ◽  
Julia Krüger ◽  
Christian Hemken ◽  
Luc-Sy Tran ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Synchrotron Radiation ◽  
Photon Energy ◽  
Molecular Beam ◽  
Vacuum Ultraviolet ◽  
Photoelectron Spectra ◽  
Combustion Analysis ◽  
Molecular Beam Mass Spectrometry ◽  
Vuv Photoionization ◽  
Coincidence Measurements

AbstractPhotoelectron photoion coincidence (PEPICO) spectroscopy as an attractive new technique for combustion analysis was used in a fixed-photon-energy configuration to provide quantitative species profiles in laminar premixed flames. While such measurements are conventionally performed with molecular-beam mass spectrometry (MBMS) using electron ionization (EI) or vacuum ultraviolet (VUV) photoionization (PI) with synchrotron radiation, these techniques have some limitations. The possibility to record photoelectron spectra (PES) simultaneously with photoionization data, providing fingerprint information for reliable species identification, presents a significant advantage of PEPICO spectroscopy especially in complex reactive mixtures. The multiplex approach presented here, enhanced by the imaging capabilities of the electron and ion detection in the so-called double-imaging PEPICO scheme (i

Molecular Beam Mass Spectrometry Studies of the Thermal Decomposition of Tetrakis(dimethylamino)Titanium

1999 ◽  
Vol 606 ◽  
Author(s):  
Carmela C. Amato-Wierda ◽  
Edward T. Norton ◽  
Derk A. Wierda
Keyword(s):  
Mass Spectrometry ◽  
Gas Phase ◽  
Vapor Deposition ◽  
Molecular Beam ◽  
Flow Reactor ◽  
Chemical Vapor ◽  
Molecular Beam Mass Spectrometry ◽  
Gas Phase Chemistry ◽  
Temperature Rate ◽  
Phase Chemistry

AbstractTetrakis(dimethylamino)titanium (TDMAT) is an important precursor for TiN, TiCN, and TiSiN thin films in chemical vapor deposition. In order to better understand how the gas phase chemistry influences the formation of these films, the decomposition of TDMAT has been studied in a high-temperature flow reactor (HTFR) by molecular beam mass spectrometry (MBMS). Two kinetic regimes have been observed as a function of temperature. Rate expressions and mechanistic implications will be presented. Further studies are in progress to identify the gas phase species relevant to the decomposition mechanism of TDMAT.

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