How do organic vapors contribute to new-particle formation?
2013 (English)In: Faraday discussions (Online), ISSN 1364-5498, E-ISSN 1359-6640, Vol. 165, 91-104 p.Article in journal (Refereed) Published
Highly oxidised organic vapors can effectively stabilize sulphuric acid in heteronuclear clusters and drive new-particle formation. We present quantum chemical calculations of cluster stability, showing that multifunctional species can stabilize sulphuric acid and also present additional polar functional groups for subsequent cluster growth. We also model the multi-generation oxidation of vapors associated with secondary organic aerosol formation using a two-dimensional volatility basis set. The steady-state saturation ratios and absolute concentrations of extremely low volatility products are sufficient to drive new-particle formation with sulphuric acid at atmospherically relevant rates.
Place, publisher, year, edition, pages
Royal Society of Chemistry, 2013. Vol. 165, 91-104 p.
IdentifiersURN: urn:nbn:se:su:diva-100408DOI: 10.1039/c3fd00046jISI: 000329068600005OAI: oai:DiVA.org:su-100408DiVA: diva2:692955
U.S. National Science Foundation AGS1136479, CHE1012293; Academy of Finland 1118615, 135054; ERC 257360- MOCAPAF, 27463-ATMNUCLE; Swiss National Science Foundation 200020_135307, 206620_130527; Swedish Research Council, Vetenskapsradet 2011-5120 2014-02-032014-02-032014-02-03Bibliographically approved