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Your search keyword '"Kirchner, U."' showing total 2 results
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2 results on '"Kirchner, U."'

1. Observation of a heterogeneous source of OCIO from the reaction of CIO radicals on ice

Author

McKeachie, J.R., Appel, M.F., Kirchner, U., Schindler, R.N., and Benter, Th.

Subjects
Absorption spectra -- Research, Chlorine oxides -- Chemical properties, Chemical reactions -- Analysis, Chemicals, plastics and rubber industries
Abstract

A heterogeneous source of several chlorine oxides, in particular OCIO and CICIO2, from CIO radicals passed over water-ice surfaces at low pressures is demonstrated. CIO radicals are generated in a flow system and reaction products are monitored by UV-vis absorption spectroscopy and time-of-flight mass spectrometry using electron-impact and resonance-enhanced mulitphoton ionization, respectively.

Published
2004

2. FTIR spectroscopic investigation of the mechanism and kinetics of the heterogeneous reactions of NO2 and HNO3 with soot

Author

Kirchner U., Scheer V., and Vogt R.

Subjects
Nitric acid -- Chemical properties, Nitrogen compounds -- Chemical properties, Fourier transform infrared spectroscopy -- Usage, Chemicals, plastics and rubber industries
Abstract

Soot samples from a spark generator, a flame and a diesel passenger car were collected and investigated by Fourier transform infrared (FTIR) spectroscopy mounting on 10 cm vacuum cell connected to a standard flow system with He as carrier gas. The reaction probability on diesel engine soot was of slower magnitude and the reaction of soot with NO2 cannot account for the HONO levels observed in urban air.

Published
2000

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