Tropospheric photolysis of CF3CHO

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Standard

Tropospheric photolysis of CF3CHO. / Andersen, Mads Peter Sulbaek; Nielsen, Ole John.

I: Atmospheric Environment, Bind 272, 118935, 01.2022.

Publikation: Bidrag til tidsskriftTidsskriftartikelfagfællebedømt

Harvard

Andersen, MPS & Nielsen, OJ 2022, 'Tropospheric photolysis of CF3CHO', Atmospheric Environment, bind 272, 118935. https://doi.org/10.1016/j.atmosenv.2021.118935

APA

Andersen, M. P. S., & Nielsen, O. J. (2022). Tropospheric photolysis of CF3CHO. Atmospheric Environment, 272, [118935]. https://doi.org/10.1016/j.atmosenv.2021.118935

Vancouver

Andersen MPS, Nielsen OJ. Tropospheric photolysis of CF3CHO. Atmospheric Environment. 2022 jan.;272. 118935. https://doi.org/10.1016/j.atmosenv.2021.118935

Author

Andersen, Mads Peter Sulbaek ; Nielsen, Ole John. / Tropospheric photolysis of CF3CHO. I: Atmospheric Environment. 2022 ; Bind 272.

Bibtex

@article{6c28f9cce8a241049af673fa9d8b1177,
title = "Tropospheric photolysis of CF3CHO",
abstract = "Trifluoroacetaldehyde, CF3CHO, is an atmospheric degradation product of several chlorofluorocarbon (CFC) alternatives. It is important to understand the further fate of CF3CHO in the atmosphere. There is conflicting information on the CF3CHO photolysis in the literature. In this chamber study, the tropospheric photolysis of CF3CHO was investigated using broadband actinic radiation and FTIR spectroscopy for detection of the photolysis products. The photolysis produces CF3 radicals in a yield of unity, which under atmospheric conditions gives dominantly COF2 with smaller yields of oxides, alkoxy nitrates or per oxynitrates. No formation of CF3H, HFC-23, was observed under any of the experimental conditions and an estimated upper limit for the yield of HFC-23 of 0.3 % was established. Our results are in contradiction to those published most recently, which claimed to have observed HFC-23, and which has created a lot of debate in the scientific community. This is the first study of broadband UV photolysis of CF3CHO, combined with FTIR detection of CF3H.",
author = "Andersen, {Mads Peter Sulbaek} and Nielsen, {Ole John}",
year = "2022",
month = jan,
doi = "10.1016/j.atmosenv.2021.118935",
language = "English",
volume = "272",
journal = "Atmospheric Environment",
issn = "0004-6981",
publisher = "Pergamon Press",

}

RIS

TY - JOUR

T1 - Tropospheric photolysis of CF3CHO

AU - Andersen, Mads Peter Sulbaek

AU - Nielsen, Ole John

PY - 2022/1

Y1 - 2022/1

N2 - Trifluoroacetaldehyde, CF3CHO, is an atmospheric degradation product of several chlorofluorocarbon (CFC) alternatives. It is important to understand the further fate of CF3CHO in the atmosphere. There is conflicting information on the CF3CHO photolysis in the literature. In this chamber study, the tropospheric photolysis of CF3CHO was investigated using broadband actinic radiation and FTIR spectroscopy for detection of the photolysis products. The photolysis produces CF3 radicals in a yield of unity, which under atmospheric conditions gives dominantly COF2 with smaller yields of oxides, alkoxy nitrates or per oxynitrates. No formation of CF3H, HFC-23, was observed under any of the experimental conditions and an estimated upper limit for the yield of HFC-23 of 0.3 % was established. Our results are in contradiction to those published most recently, which claimed to have observed HFC-23, and which has created a lot of debate in the scientific community. This is the first study of broadband UV photolysis of CF3CHO, combined with FTIR detection of CF3H.

AB - Trifluoroacetaldehyde, CF3CHO, is an atmospheric degradation product of several chlorofluorocarbon (CFC) alternatives. It is important to understand the further fate of CF3CHO in the atmosphere. There is conflicting information on the CF3CHO photolysis in the literature. In this chamber study, the tropospheric photolysis of CF3CHO was investigated using broadband actinic radiation and FTIR spectroscopy for detection of the photolysis products. The photolysis produces CF3 radicals in a yield of unity, which under atmospheric conditions gives dominantly COF2 with smaller yields of oxides, alkoxy nitrates or per oxynitrates. No formation of CF3H, HFC-23, was observed under any of the experimental conditions and an estimated upper limit for the yield of HFC-23 of 0.3 % was established. Our results are in contradiction to those published most recently, which claimed to have observed HFC-23, and which has created a lot of debate in the scientific community. This is the first study of broadband UV photolysis of CF3CHO, combined with FTIR detection of CF3H.

U2 - 10.1016/j.atmosenv.2021.118935

DO - 10.1016/j.atmosenv.2021.118935

M3 - Journal article

VL - 272

JO - Atmospheric Environment

JF - Atmospheric Environment

SN - 0004-6981

M1 - 118935

ER -

ID: 289024692