Global S&T Development Trend Analysis Platform of Resources and Environment
项目编号 | 1463703 |
Collaborative Research: Kinetics and Mechanism of Restructuring of Atmospheric Soot and Associated Impact on Light Absorption | |
Chong Qiu | |
主持机构 | University of North Alabama |
项目开始年 | 2015 |
2015-07-15 | |
项目结束日期 | 2018-06-30 |
资助机构 | US-NSF |
项目类别 | Standard Grant |
项目经费 | 82927(USD) |
国家 | 美国 |
语种 | 英语 |
英文摘要 | Nanoparticulate atmospheric soot particles are complex in their shape, size and chemical composition. They can be variably observed as fractal aggregates composed of elemental carbon (EC- in graphitic or graphene structures), or organic carbon compounds (OC - hydrocarbons with oxidized or other attached heteroatom moieties). Other aerosol materials potentially embed or enmesh, in either internal or external mixing states, such soot particles as they age in the ambient atmosphere. Our limited knowledge of relationships between soot mixing state, soot morphology, and soot optical properties, remains a major source of uncertainty in evaluating the optical and radiative contribution of carbonaceous aerosols to direct radiative) climate forcing. Researchers will undertake a series of combined laboratory and computational studies to better characterize the formation of soot particles with different mixing states, and to investigate associated structural and optical properties in relation to the particle initial state and aerosol aging. Mixing states and morphology of soot aggregates will be determined from a combination of mass-mobility measurements and environmental scanning electron microscopy imaging. Optical calculations constrained by the experimentally measured mixing states and morphologies will provide a closure with directly determined light absorption and scattering by this range of carbonaceous soot. One broader impact of this work will be the promotion of collaboration between faculty at a PhD-granting and a primarily undergraduate teaching university. |
来源学科分类 | Geosciences - Atmospheric and Geospace Sciences |
文献类型 | 项目 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/68244 |
专题 | 环境与发展全球科技态势 |
推荐引用方式 GB/T 7714 | Chong Qiu.Collaborative Research: Kinetics and Mechanism of Restructuring of Atmospheric Soot and Associated Impact on Light Absorption.2015. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Chong Qiu]的文章 |
百度学术 |
百度学术中相似的文章 |
[Chong Qiu]的文章 |
必应学术 |
必应学术中相似的文章 |
[Chong Qiu]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
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。
修改评论