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  Heterogeneous reaction of N2O5 with illite and Arizona test dust particles

Tang, M. J., Schuster, G., & Crowley, J. N. (2014). Heterogeneous reaction of N2O5 with illite and Arizona test dust particles. Atmospheric Chemistry and Physics, 14(1), 245-254. doi:10.5194/acp-14-245-2014.

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Tang, M. J.1, Autor           
Schuster, G.1, Autor           
Crowley, J. N.1, Autor           
Affiliations:
1Atmospheric Chemistry, Max Planck Institute for Chemistry, Max Planck Society, ou_1826285              

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 Zusammenfassung: The heterogeneous reaction of N2O5 with airborne illite and Arizona test dust (ATD) particles was investigated at room temperature and at different relative humidities using an atmospheric pressure aerosol flow tube. N2O5 at concentrations in the range 8 to 24 x 10(12) molecule cm(-3) was monitored using thermal-dissociation cavity ring-down spectroscopy at 662 nm. At zero relative humidity a large uptake coefficient of N2O5 to illite was obtained, gamma(N2O5) = 0.09, which decreased to 0.04 as relative humidity was increased to 67 %. In contrast, the uptake coefficient derived for ATD is much lower (similar to 0.006) and displays a weaker (if any) dependence on relative humidity (0-67 %). Potential explanations are given for the significant differences between the uptake behaviour for ATD and illite and the results are compared with uptake coefficients for N2O5 on other mineral surfaces.

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 Datum: 2014
 Publikationsstatus: Erschienen
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 Identifikatoren: ISI: 000329930600017
DOI: 10.5194/acp-14-245-2014
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Titel: Atmospheric Chemistry and Physics
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: Katlenburg-Lindau, Germany : European Geosciences Union
Seiten: - Band / Heft: 14 (1) Artikelnummer: - Start- / Endseite: 245 - 254 Identifikator: ISSN: 1680-7316
CoNE: https://pure.mpg.de/cone/journals/resource/111030403014016