Quantitative HNO detection behind shock waves
Quantitative HNO detection behind shock waves
复制标题
冲击波后的定量耳鼻喉科检测
DOI:
10.1016/j.proci.2016.05.035
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
G. Friedrichs
中科院分区:
文献类型:
--
作者:
N. Faßheber;M.C. Schmidt;G. Friedrichs
Abstract Knowledge about the high temperature kinetics of HNO, which represents a key species in NO x flame chemistry, is scarce. Using the very sensitive absorption based frequency modulation (FM) spectroscopy, HNO has been measured behind shock waves for the first time. The UV photolysis of glyoxal/NO mixtures at λ= 193 nm served as an HNO source with stable HNO concentration plateaus generated via the fast initial formation of HCO radicals followed by the reaction HCO+ NO→ CO+ HNO. FM line shapes of three selected transitions of the A˜ 1 A′′(100)− X˜ 1 A′(000) band of HNO have been recorded and their pressure broadening coefficient has been determined. By analyzing HNO and HCO concentration-time profiles measured under very similar reaction conditions it was possible to confirm an HCO/HNO formation mechanism and to determine the HNO absorption cross section. The expression log [σ c (HNO, p= 0 bar, 295 K< T< 1800 K)/cm 2 mol− 1]= 5.86–1.62× 10− 3× T/K+ 2.74× 10− 7× T 2/K 2 with an uncertainty of±40% in σ c is recommended for the R R 3 (4) rotational line at ν˜= 16173.86 cm− 1 (618.2816 nm). The capability to perform quantitative HNO measurements behind shock wave make possible direct rate constant studies of bimolecular HNO reactions in future experiments.
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DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
V. Lozovsky;S. Cheskis
通讯作者:
S. Cheskis
影响因子:
2.9
作者:
Su, MC;Kumaran, SS;Fang, DC
通讯作者:
Fang, DC
影响因子:
3.3
作者:
Dammeier, J.;Colberg, M.;Friedrichs, G.
通讯作者:
Friedrichs, G.
DOI:
10.1021/jp1043046
发表时间:
2010
期刊:
The journal of physical chemistry. A
影响因子:
--
作者:
J. Dammeier;G. Friedrichs
通讯作者:
G. Friedrichs
DOI:
10.1021/jp055168r
发表时间:
2006
期刊:
The journal of physical chemistry. A
影响因子:
--
作者:
M. Colberg;G. Friedrichs
通讯作者:
G. Friedrichs