Niklas Illmann
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View article: Investigations on the fate of selected peroxy radicals using synthetized precursors and isomeric speciation
Investigations on the fate of selected peroxy radicals using synthetized precursors and isomeric speciation Open
Peroxy radicals (RO2) play a central role in the atmospheric degradation of volatile organic compounds (VOC) whose atmospheric lifetime and further reactions depend strongly on the prevailing conditions. In air masses influenced by anthrop…
View article: A perspective on the reactions of organic peroxy radicals with HO<sub>2</sub>
A perspective on the reactions of organic peroxy radicals with HO<sub>2</sub> Open
The reactions of peroxy radicals (RO 2 ) with HO 2 are relevant under low NO conditions. Here, available data on RO 2 + HO 2 are reviewed, and gaps where future research is needed are highlighted.
View article: Aerosol, Clouds and Trace Gases Research Infrastructure (ACTRIS): The European Research Infrastructure Supporting Atmospheric Science
Aerosol, Clouds and Trace Gases Research Infrastructure (ACTRIS): The European Research Infrastructure Supporting Atmospheric Science Open
The Aerosol, Clouds and Trace Gases Research Infrastructure (ACTRIS) officially became the 33rd European Research Infrastructure Consortium (ERIC) on 25 April 2023 with the support of 17 founding member and observer countries. As a pan-Eur…
View article: O<sub>3</sub> chemistry of 2,5-dimethylfuran: mechanism development
O<sub>3</sub> chemistry of 2,5-dimethylfuran: mechanism development Open
O 3 chemistry of substituted furans might contribute to acidity in nighttime biomass burning plumes.
View article: Organic acid formation in the gas-phase ozonolysis of α,β-unsaturated ketones
Organic acid formation in the gas-phase ozonolysis of α,β-unsaturated ketones Open
Based on atmospheric simulation chamber experiments, we present pathways to account for acid formation from Criegee intermediates.
View article: Experimental and Theoretical Studies of Trans-2-Pentenal Atmospheric Ozonolysis
Experimental and Theoretical Studies of Trans-2-Pentenal Atmospheric Ozonolysis Open
We investigated the kinetics, mechanism and secondary organic aerosols formation of the ozonolysis of trans-2-pentenal (T2P) using four different reactors with Fourier Transform InfraRed (FTIR) spectroscopy and Gas Chromatography (GC) tech…
View article: Biomass burning plume chemistry: OH-radical-initiated oxidation of 3-penten-2-one and its main oxidation product 2-hydroxypropanal
Biomass burning plume chemistry: OH-radical-initiated oxidation of 3-penten-2-one and its main oxidation product 2-hydroxypropanal Open
In order to enlarge our understanding of biomass burning plume chemistry, the OH-radical-initiated oxidation of 3-penten-2-one (3P2), identified in biomass burning emissions, and 2-hydroxypropanal (2HPr) was investigated at 298 ± 3 K and 9…
View article: Atmospheric oxidation of <i>α</i> , <i>β</i> -unsaturated ketones: kinetics and mechanism of the OH radical reaction
Atmospheric oxidation of <i>α</i> , <i>β</i> -unsaturated ketones: kinetics and mechanism of the OH radical reaction Open
The OH-radical-initiated oxidation of 3-methyl-3-penten-2-one and 4-methyl-3-penten-2-one was investigated in two atmospheric simulation chambers at 298±3 K and 990±15 mbar using long-path FTIR spectroscopy. The rate coefficients of the re…
View article: Reply on RC2
Reply on RC2 Open
Abstract. In order to enlarge our understanding of biomass burning plume chemistry, the OH-radical-initiated oxidation of 3-penten-2-one (3P2), identified in biomass burning emissions, and 2-hydroxypropanal (2HPr) was investigated at 298 ±…
View article: Comment on acp-2021-575
Comment on acp-2021-575 Open
Abstract. In order to enlarge our understanding of biomass burning plume chemistry, the OH-radical-initiated oxidation of 3-penten-2-one (3P2), identified in biomass burning emissions, and 2-hydroxypropanal (2HPr) was investigated at 298â…
View article: Reply on RC1
Reply on RC1 Open
Abstract. In order to enlarge our understanding of biomass burning plume chemistry, the OH-radical-initiated oxidation of 3-penten-2-one (3P2), identified in biomass burning emissions, and 2-hydroxypropanal (2HPr) was investigated at 298 ±…
View article: Comment on acp-2021-575
Comment on acp-2021-575 Open
Abstract. In order to enlarge our understanding of biomass burning plume chemistry, the OH-radical-initiated oxidation of 3-penten-2-one (3P2), identified in biomass burning emissions, and 2-hydroxypropanal (2HPr) was investigated at 298 ±…
View article: Comment on acp-2021-449
Comment on acp-2021-449 Open
Abstract. The OH-radical-initiated oxidation of 3-methyl-3-penten-2-one and 4-methyl-3-penten-2-one was investigated in two atmospheric simulation chambers at 298±3 K and 990±15 mbar using long-path FTIR spectroscopy. The rate coefficients…
View article: Biomass burning plume chemistry: OH radical initiated oxidation of 3-penten-2-one and its main oxidation product 2-hydroxypropanal
Biomass burning plume chemistry: OH radical initiated oxidation of 3-penten-2-one and its main oxidation product 2-hydroxypropanal Open
In order to enlarge our understanding of biomass burning plume chemistry, the OH radical initiated oxidation of 3-penten-2-one (3P2), identified in biomass burning emissions, and 2-hydroxypropanal (2HPr) were investigated at 298 ± 3 K and …
View article: Comment on acp-2021-449
Comment on acp-2021-449 Open
Abstract. The OH-radical-initiated oxidation of 3-methyl-3-penten-2-one and 4-methyl-3-penten-2-one was investigated in two atmospheric simulation chambers at 298±3 K and 990±15 mbar using long-path FTIR spectroscopy. The rate coefficients…
View article: Comment on acp-2021-449
Comment on acp-2021-449 Open
Abstract. The OH-radical-initiated oxidation of 3-methyl-3-penten-2-one and 4-methyl-3-penten-2-one was investigated in two atmospheric simulation chambers at 298±3âK and 990±15âmbar using long-path FTIR spectroscopy. The rate coeffi…
View article: Atmospheric oxidation of α,β-unsaturated ketones: kinetics and mechanism of the OH radical reaction
Atmospheric oxidation of α,β-unsaturated ketones: kinetics and mechanism of the OH radical reaction Open
The OH radical initiated oxidation of 3-methyl-3-penten-2-one and 4-methyl-3-penten-2-one was investigated in two atmospheric simulation chambers at 298 ± 3 K and 990 ± 15 mbar using long-path FTIR spectroscopy. The rate coefficients of th…
View article: Gas-phase reactivity of acyclic α,β-unsaturated carbonyls towards ozone
Gas-phase reactivity of acyclic α,β-unsaturated carbonyls towards ozone Open
This work evaluates different approaches to discuss the reactivity of α,β-unsaturated carbonyls towards ozone comparative to alkene analogues.