How do organic vapors contribute to new-particle formation?

被引：97

作者：

Donahue, Neil M. ^{[1
]}

Ortega, Ismael K. ^{[2
]}

Chuang, Wayne ^{[1
]}

Riipinen, Ilona ^{[1
,2
,3
,4
]}

Riccobono, Francesco ^{[6
]}

Schobesberger, Siegfried ^{[2
]}

Dommen, Josef ^{[6
]}

Baltensperger, Urs ^{[6
]}

Kulmala, Markku ^{[2
]}

Worsnop, Douglas R. ^{[2
,5
]}

Vehkamaki, Hanna ^{[2
]}

机构：

[1] Carnegie Mellon Univ, Ctr Atmospher Particle Studies, Pittsburgh, PA 15213 USA

[2] Univ Helsinki, Dept Phys, Div Atmospher Sci, FI-00014 Helsinki, Finland

[3] Univ Stockholm, Dept Appl Environm Sci, Stockholm, Sweden

[4] Univ Stockholm, Bert Bolin Ctr Climate Res, Stockholm, Sweden

[5] Aerodyne Res Inc, Billerica, MA USA

[6] Paul Scherrer Inst, Lab Atmospher Chem, CH-5232 Villigen, Switzerland

来源：

FARADAY DISCUSSIONS | 2013年 / 165卷

基金：

芬兰科学院; 瑞士国家科学基金会; 美国国家科学基金会; 瑞典研究理事会;

关键词：

VOLATILITY BASIS-SET; ATMOSPHERIC SULFURIC-ACID; AEROSOL FORMATION; SECONDARY; NUCLEATION; GROWTH; CONDENSATION; OXIDATION; DILUTION; SIZE;

D O I：

10.1039/c3fd00046j

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

收藏

页码：91 / 104

页数：14

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