| 报告题目 | Atmospheric Chemistry: Spectroscopic and Photo-Reaction Chamber Studies |
| 报告人 | Prof. Wolfgang Jäger |
| 报告人单位 | Department of Chemistry, University of Alberta, Canada |
| 报告时间 | 2017-05-10 |
| 报告地点 | 合肥微尺度物质科学国家实验室九楼会议室（9004） |
| 主办单位 | 合肥微尺度物质科学国家实验室 |
| 报告介绍 | Abstract：
Atmospheric aerosols can severely affect human health and cause allergies, asthma, and cardiovascular and respiratory diseases. Aerosols have also significant effects on Earth’s climate. They have direct effects of Earth’s energy balance by scattering of, for example, incoming solar radiation and indirect effects by serving as cloud condensation nuclei.
The first part of the presentation will be about photo-reaction (‘smog’) chamber experiments to study ageing of soot aerosol particles. Soot particles consist of many primary particles and have complex morphologies. If soot particles are coated with volatile organic compounds or secondary organic aerosol, they undergo structural changes.
In the second part of the talk, spectroscopic studies of clusters of organic acids with water will be described. Such clusters are thought to play a critical role in the initial steps of secondary organic aerosol particle formation. |
