| Literature DB >> 24600998 |
Neil M Donahue1, Ismael K Ortega2, Wayne Chuang3, Ilona Riipinen3, Francesco Riccobono4, Siegfried Schobesberger2, Josef Dommen4, Urs Baltensperger4, Markku Kulmala2, Douglas R Worsnop5, Hanna Vehkamaki2.
Abstract
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.Entities:
Year: 2013 PMID: 24600998 DOI: 10.1039/c3fd00046j
Source DB: PubMed Journal: Faraday Discuss ISSN: 1359-6640 Impact factor: 4.008