Go to  Advanced Search

Reactive uptake studies of NO3 and N2O5 on alkenoic acid, alkanoate, and polyalcohol substrates to probe nighttime aerosol chemistry.

Show simple item record

dc.contributor.author Gross, Simone
dc.contributor.author Iannone, Richard
dc.contributor.author Xiao, Song
dc.contributor.author Bertram, Allan K.
dc.date.accessioned 2011-04-18T21:55:00Z
dc.date.available 2011-04-18T21:55:00Z
dc.date.issued 2009-08
dc.identifier.citation Gross, Simone, Iannone, Richard, Xiao, Song, Bertram, Allan K. 2009. Reactive uptake studies of NO3 and N2O5 on alkenoic acid, alkanoate, and polyalcohol substrates to probe nighttime aerosol chemistry. Physical Chemistry Chemical Physics 11(36) 7792-7803. dx.doi.org/10.1039/b904741g en
dc.identifier.uri http://hdl.handle.net/2429/33771
dc.description.abstract Heterogeneous reactions between NO3 and N2O5 and diethyl sebacate (DES), glycerol, oleic acid (OA), linoleic acid (LA), and conjugated linoleic acid (CLA) were studied to understand better nighttime aerosol chemistry. The reactive uptake coefficient of NO3 on the liquid alkenoic acids (OA, LA, and CLA) was found to be >0.07, which is higher than previous results for unsaturated organics, including alkenoic acids. This reaction could potentially be an important loss process of particle-phase unsaturated organic compounds in the atmosphere and in laboratory secondary organic aerosol studies. The reactive uptake coefficient of N2O5 on liquid glycerol was also found to be relatively large with a value of (3.2–8.5) × 10−4, suggesting that N2O5 heterogeneous reactions with alcohols may also be atmospherically relevant. For all measurements with OA, CLA, and DES, the reactive uptake coefficients decreased significantly upon freezing. One possible explanation is that the liquid reaction is due to both a surface reaction and a bulk reaction and that the freezing process significantly decreases the importance of any bulk reactions. NO3 reactive uptake coefficients for liquid-phase compounds decreased in magnitude in the order: alkenoic acids > DES > glycerol. This is different compared to previous gas-phase studies and the difference may be due to the large viscosity of glycerol compared to the other organic compounds studied. N2O5 reactive uptake coefficients for liquid-phase compounds decreased in magnitude in the order: glycerol > LA > DES [congruent with] OA [congruent with] CLA. en
dc.language.iso eng en
dc.publisher Royal Society of Chemistry en
dc.title Reactive uptake studies of NO3 and N2O5 on alkenoic acid, alkanoate, and polyalcohol substrates to probe nighttime aerosol chemistry. en
dc.type text en
dc.type.text article en
dc.description.affiliation Chemistry, Dept of en
dc.description.reviewstatus Reviewed en
dc.rights.copyright Bertram, Allen K. en
dc.description.scholarlevel Faculty en


Files in this item

Files Size Format Description   View
Bertram_2009_CPPC_b904741g.pdf 937.7Kb Adobe Portable Document Format   View/Open
 

This item appears in the following Collection(s)

Show simple item record

All items in cIRcle are protected by copyright, with all rights reserved.

UBC Library
1961 East Mall
Vancouver, B.C.
Canada V6T 1Z1
Tel: 604-822-6375
Fax: 604-822-3893