Climate Change Data Portal
| DOI | 10.5194/acp-20-7359-2020 |
| Enhanced growth rate of atmospheric particles from sulfuric acid | |
| Stolzenburg D.; Stolzenburg D.; Simon M.; Ranjithkumar A.; Kürten A.; Lehtipalo K.; Lehtipalo K.; Gordon H.; Ehrhart S.; Finkenzeller H.; Pichelstorfer L.; Nieminen T.; He X.-C.; Brilke S.; Xiao M.; Amorim A.; Baalbaki R.; Baccarini A.; Beck L.; Bräkling S.; Murillo L.C.; Chen D.; Chu B.; Dada L.; Dias A.; Dommen J.; Duplissy J.; El Haddad I.; Fischer L.; Carracedo L.G.; Heinritzi M.; Kim C.; Kim C.; Koenig T.K.; Kong W.; Lamkaddam H.; Lee C.P.; Leiminger M.; Leiminger M.; Li Z.; Makhmutov V.; Manninen H.E.; Marie G.; Marten R.; Müller T.; Nie W.; Partoll E.; Petäjä T.; Pfeifer J.; Philippov M.; Rissanen M.P.; Rissanen M.P.; Rörup B.; Schobesberger S.; Schuchmann S.; Shen J.; Sipilä M.; Steiner G.; Stozhkov Y.; Tauber C.; Tham Y.J.; Tomé A.; Vazquez-Pufleau M.; Wagner A.C.; Wagner A.C.; Wang M.; Wang Y.; Weber S.K.; Wimmer D.; Wimmer D.; Wlasits P.J.; Wu Y.; Ye Q.; Zauner-Wieczorek M.; Baltensperger U.; Carslaw K.S.; Curtius J.; Donahue N.M.; Flagan R.C.; Hansel A.; Hansel A.; Kulmala M.; Lelieveld J.; Volkamer R.; Kirkby J.; Kirkby J.; Winkler P.M. | |
| 发表日期 | 2020 |
| ISSN | 16807316 |
| 起始页码 | 7359 |
| 结束页码 | 7372 |
| 卷号 | 20期号:12 |
| 英文摘要 | In the present-day atmosphere, sulfuric acid is the most important vapour for aerosol particle formation and initial growth. However, the growth rates of nanoparticles (< 10 nm) from sulfuric acid remain poorly measured. Therefore, the effect of stabilizing bases, the contribution of ions and the impact of attractive forces on molecular collisions are under debate. Here, we present precise growth rate measurements of uncharged sulfuric acid particles from 1.8 to 10 nm, performed under atmospheric conditions in the CERN (European Organization for Nuclear Research) CLOUD chamber. Our results show that the evaporation of sulfuric acid particles above 2 nm is negligible, and growth proceeds kinetically even at low ammonia concentrations. The experimental growth rates exceed the hard-sphere kinetic limit for the condensation of sulfuric acid. We demonstrate that this results from van der Waals forces between the vapour molecules and particles and disentangle it from charge-dipole interactions. The magnitude of the enhancement depends on the assumed particle hydration and collision kinetics but is increasingly important at smaller sizes, resulting in a steep rise in the observed growth rates with decreasing size. Including the experimental results in a global model, we find that the enhanced growth rate of sulfuric acid particles increases the predicted particle number concentrations in the upper free troposphere by more than 50 %. © 2020 Author(s). |
| 关键词 | aerosolatmospheric chemistryconcentration (composition)evaporationgrowth ratepredictionsulfuric acid |
| 语种 | 英语 |
| 来源机构 | Atmospheric Chemistry and Physics |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/131960 |
| 推荐引用方式 GB/T 7714 | Stolzenburg D.,Stolzenburg D.,Simon M.,et al. Enhanced growth rate of atmospheric particles from sulfuric acid[J]. Atmospheric Chemistry and Physics,2020,20(12). |
| APA | Stolzenburg D..,Stolzenburg D..,Simon M..,Ranjithkumar A..,Kürten A..,...&Winkler P.M..(2020).Enhanced growth rate of atmospheric particles from sulfuric acid.,20(12). |
| MLA | Stolzenburg D.,et al."Enhanced growth rate of atmospheric particles from sulfuric acid".20.12(2020). |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
