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Isotope effects in the photolysis of formaldehyde

Publikation: Bidrag til bog/antologi/rapportKonferencebidrag i proceedingsForskningfagfællebedømt

In the photolysis of atmospheric hydrocarbons, the photolysis of formaldehyde is a key step. The photolysis proceeds via two channels, often referred to as the radical channel (1) and the molecular channel (2). (1) HCHO + hv (λ < 340 nm) → H + HCO; (2) HCHO + hv (λ < 360 nm) → H2 + CO There is a great interest in the different steps of the hydrocarbon oxidation since the chain of reactions, CH4 → CH3 → CH3O2 → CH3O → HCHO → CO+H2, is a link between the carbon- and hydrogen cycles in the atmosphere. A recent work report the relative natural sunlight photolysis rates of HCHO and HCDO measured at the European Photoreactor Facility (EUPHORE) in Valencia, Spain. In a laboratory study at the University of Copenhagen HCHO and HCDO have been photolyzed in an indoor reaction chamber. The temperature and pressure dependence of the isotope effect has been studied.

OriginalsprogEngelsk
TitelAmerican Chemical Society - 235th National Meeting, Abstracts of Scientific Papers
Publikationsdato1 dec. 2008
ISBN (Trykt)9780841269859
StatusUdgivet - 1 dec. 2008
Begivenhed235th National Meeting of the American Chemical Society, ACS 2008 - New Orleans, LA, USA
Varighed: 6 apr. 200810 apr. 2008

Konference

Konference235th National Meeting of the American Chemical Society, ACS 2008
LandUSA
ByNew Orleans, LA
Periode06/04/200810/04/2008
NavnACS National Meeting Book of Abstracts
ISSN0065-7727

ID: 236121860