Mass Spectral Studies of Kinetics behind Shock Waves. I. Thermal Dissociation of Chlorine

Diesen, R. W.; Felmlee, W. J.

doi:10.1063/1.1701410

Cited by 52 publications

(13 citation statements)

References 25 publications

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“…The perpendicular alignment between the shock tube and the mass spectrometer drift tube substantially reduces the drift tube overpressure effect encountered in other apparatus (Diesen and Felmlee (1963), Ryason (1967)). The detailed description and design considerations of the present apparatus are presented elsewhere (Le Trung (1972), Krizancic et al (1975)).…”

Section: Resultsmentioning

confidence: 97%

A Shock Tube Study of the Thermal Decomposition of Nitric Oxide

Trung

Mackay

Hirata

et al. 1975

Combustion Science and Technology

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Nitric oxide decomposition has been studied in a shock tube, time-of-flight mass spectrometer system at 2700 to 4700 K and 1.5 to 3.5 atrn using neon as diluent. The overall decomposition rate was found to be second order in NO concentration and in good agreement with previously reported rates. N" 0" and O-atoms were the only observed reaction products. The concentration-time profiles of the observed species lend support to a mechanism of primary NO decomposition to N, and 0, with slower decomposition to N,O and O-atoms. A mathematical simulation of the reaction consisting of eight elementary reactions was deduced by fitting experimental data to simulated concentration-time profiles.

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Section: Resultsmentioning

confidence: 97%

A Shock Tube Study of the Thermal Decomposition of Nitric Oxide

Trung

Mackay

Hirata

et al. 1975

Combustion Science and Technology

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“…The high temperature data fall in three groups. The early measurements of Hiraoka and Hardwick [92] and Diesen and Felmlee [93] indicate values of k 9b an order of magnitude higher than the bulk of the data. The high values have been attributed to boundary layer effects and limitations in detection accuracy and were disregarded by both Lloyd [91] and Baulch et al [30].…”

Section: Reaction Mechanismmentioning

confidence: 99%

High-temperature chemistry of HCl and Cl2

Pelucchi

Frassoldati

Faravelli

et al. 2015

Combustion and Flame

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The high temperature chlorine chemistry was updated and the inhibition mechanisms involving HCl and Cl 2 were re-examined. The thermochemistry was obtained using the Active Thermochemical Tables (ATcT) approach, resulting in improved data for chlorine-containing species of interest. The HCl/Cl 2 chemistry discussed in the paper was based on reference and experimental measurements of rate constants available in the literature. By coupling the new HCl/Cl 2 subset with the Politecnico di Milano (POLIMI) syngas mechanism a kinetic mechanism consisting of 25 species and 102 reactions was obtained.The validation was carried out on selected experimental data from laminar flames, shock tubes and plug flow reactors. Systems containing Cl 2 showed high sensitivity to Cl 2 +M ⇀ ↽ Cl+Cl+M; the rate constant for this reaction has a significant uncertainty and there is a need for an accurate high-temperature determination. The importance of

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“…They demonstrated that the technique can be used in chemical kinetics studies. [1][2][3] During the 1960s, some TOF-MS shock tube studies have been published by Diesen and Felmlee, 4 Diesen, 5, 6 Modica,7 and Dove and Moulton. 8 The latter reported that ions formed inside the shock tube by chemical ionization can result in unresolved noise.…”

Section: Introductionmentioning

confidence: 99%

A shock tube with a high-repetition-rate time-of-flight mass spectrometer for investigations of complex reaction systems

Dürrstein

Aghsaee

Jerig

et al. 2011

Review of Scientific Instruments

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A conventional membrane-type stainless steel shock tube has been coupled to a high-repetition-rate time-of-flight mass spectrometer (HRR-TOF-MS) to be used to study complex reaction systems such as the formation of pollutants in combustion processes or formation of nanoparticles from metal containing organic compounds. Opposed to other TOF-MS shock tubes, our instrument is equipped with a modular sampling unit that allows to sample with or without a skimmer. The skimmer unit can be mounted or removed in less than 10 min. Thus, it is possible to adjust the sampling procedure, namely, the mass flux into the ionization chamber of the HRR-TOF-MS, to the experimental situation imposed by species-specific ionization cross sections and vapor pressures. The whole sampling section was optimized with respect to a minimal distance between the nozzle tip inside the shock tube and the ion source inside the TOF-MS. The design of the apparatus is presented and the influence of the skimmer on the measured spectra is demonstrated by comparing data from both operation modes for conditions typical for chemical kinetics experiments. The well-studied thermal decomposition of acetylene has been used as a test system to validate the new setup against kinetics mechanisms reported in literature.

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Mass Spectral Studies of Kinetics behind Shock Waves. I. Thermal Dissociation of Chlorine

Cited by 52 publications

References 25 publications

A Shock Tube Study of the Thermal Decomposition of Nitric Oxide

A Shock Tube Study of the Thermal Decomposition of Nitric Oxide

High-temperature chemistry of HCl and Cl2

A shock tube with a high-repetition-rate time-of-flight mass spectrometer for investigations of complex reaction systems

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