Atmospheric Particle Formation in Two Systems: Sulfuric Acid (H2SO4)/Water (H2O) plus Ammonia (NH3) and/or Amines, and Oxidation Products from Organic Compounds
两个系统中大气颗粒的形成:硫酸 (H2SO4)/水 (H2O) 加氨 (NH3) 和/或胺,以及有机化合物的氧化产物
基本信息
- 批准号:2232189
- 负责人:
- 金额:$ 38.94万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2022
- 资助国家:美国
- 起止时间:2022-12-01 至 2025-11-30
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
This project involves the conduct of new laboratory experiments to study fundamental processes underlying new particle formation in the atmosphere with a particular focus on the formation and growth of nanoparticles. There still exist uncertainties and knowledge gaps related to new particle formation, and this work will provide insights into new particle formation and enhance our understanding of the formation of clouds, as well as the impacts on a changing climate and human health. The experiments will be performed in two reactors developed in previous NSF-funded work. Undergraduate students, including those from underrepresented groups, will be trained and taught laboratory techniques over the course of this project.Two flow reactors, developed in previous NSF-funded work, will be used in this project: a Photolytic Flow Reactor (PhoFR) and a Growth Flow Reactor (GroFR). The experiments will provide fundamental knowledge pertaining to Gibbs energy, van der Waals effects, and the impact of particle phase composition of a H2SO4/NH3 system, as well as focus on organic particle formation from biogenic volatile organic compound oxidation. The experiments with the PhoFR include: (1) study the nucleation rates and cluster Gibbs energies in H2SO4/H2O and ternary (with NH3) systems under various temperatures; and (2) study the growth of seed particles by H2SO4 uptake as a function of seed particle size and composition, as well as determine the effects of van der Walls forces and the hygroscopicity of nanoparticles. The experiments with the GroFR include: (1) study the effect of seed particle size and growth during the photooxidation of monoterpenes; (2) study the synthesis of first-generation oxidation products of monoterpenes and related compounds; and (3) the deployment of a mass spectrometer.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
该项目涉及进行新的实验室实验,以研究大气中新粒子形成的基本过程,特别关注纳米粒子的形成和生长。与新粒子形成有关的不确定性和知识差距仍然存在,这项工作将提供对新粒子形成的见解,并提高我们对云的形成以及对气候变化和人类健康影响的理解。这些实验将在之前NSF资助的工作中开发的两个反应堆中进行。在本项目中,将对本科生,包括那些来自代表性不足的群体的本科生进行培训,并教授实验室技术。本项目将使用两个流动反应器,这两个反应器是在以前的NSF资助的工作中开发的:一个光解流动反应器(PhoFR)和一个生长流动反应器(GroFR)。实验将提供有关吉布斯能,货车德瓦尔斯效应,和颗粒相组成的H2SO 4/NH3系统的影响,以及专注于有机颗粒的形成从生物挥发性有机化合物氧化的基础知识。采用PhoFR的实验包括:(1)研究不同温度下H2SO 4/H2O和三元(含NH3)体系的成核速率和团簇吉布斯能;(2)研究种子颗粒通过H2SO 4吸收的生长,作为种子颗粒尺寸和组成的函数,以及确定货车der Walls力和纳米颗粒吸湿性的影响。用GroFR进行的实验包括:(1)研究单萜类化合物光氧化过程中种子颗粒大小和生长的影响;(2)研究单萜类化合物和相关化合物的第一代氧化产物的合成;以及(3)该奖项反映了NSF的法定使命,并通过使用基金会的智力价值和更广泛的评估被认为值得支持。影响审查标准。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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David Hanson其他文献
Scientists need professional development to practice meaningful public engagement
科学家需要专业发展来实践有意义的公众参与
- DOI:
- 发表时间:
2022 - 期刊:
- 影响因子:3.9
- 作者:
K. Stofer;David Hanson;Kirsten Hecht - 通讯作者:
Kirsten Hecht
U.S. Gets Its Way on Approval of New Chemicals: International organization bows to U.S. pressure and allows nations to set their own rules for approving new chemicals for marketing
美国在批准新化学品方面如愿以偿:国际组织屈服于美国的压力,允许各国制定自己的规则来批准新化学品上市
- DOI:
10.1021/cen-v061n004.p035 - 发表时间:
1983 - 期刊:
- 影响因子:1.5
- 作者:
David Hanson - 通讯作者:
David Hanson
Quantum ghost imaging of undisturbed live plants
未受干扰的活植物的量子鬼成像
- DOI:
- 发表时间:
2024 - 期刊:
- 影响因子:0
- 作者:
Duncan P. Ryan;Kristina Meier;R. Sandoval;David Thompson;David Palmer;Raymond Newell;Kati Seitz;Demosthenes P. Morales;David Hanson;James H. Werner - 通讯作者:
James H. Werner
P50 Evaluating the Utilization of School Gardens in Florida Through a Teacher Survey
- DOI:
10.1016/j.jneb.2020.04.095 - 发表时间:
2020-07-01 - 期刊:
- 影响因子:
- 作者:
Crystal Almond;Michael Swain;David Hanson;Victoria Hunter Gibney;Karla Shelnutt - 通讯作者:
Karla Shelnutt
Challenges and opportunities for the built environment in a carbon-constrained world for the next 100 years and beyond
未来 100 年及以后碳约束世界中建筑环境的挑战和机遇
- DOI:
- 发表时间:
2024 - 期刊:
- 影响因子:3.4
- 作者:
Ah;Jonah M. Williams;Julio Friedmann;David Hanson;S. Kawashima;Volker Sick;Mahmoud Reda Taha;Jennifer Wilcox - 通讯作者:
Jennifer Wilcox
David Hanson的其他文献
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{{ truncateString('David Hanson', 18)}}的其他基金
NSF Engines Development Award: Leveraging innovations for water and energy security (NM, TX)
NSF 发动机开发奖:利用创新实现水和能源安全(新墨西哥、德克萨斯州)
- 批准号:
2315274 - 财政年份:2024
- 资助金额:
$ 38.94万 - 项目类别:
Cooperative Agreement
New Particle Formation Experiments: Nucleation and Growth
新的粒子形成实验:成核和生长
- 批准号:
1761638 - 财政年份:2018
- 资助金额:
$ 38.94万 - 项目类别:
Standard Grant
Dimensions: Collaborative Research: Genome structure and adaptive evolution in peatmosses (Sphagnum): ecosystem engineers
维度:合作研究:泥炭藓(Sphagnum)的基因组结构和适应性进化:生态系统工程师
- 批准号:
1737951 - 财政年份:2017
- 资助金额:
$ 38.94万 - 项目类别:
Standard Grant
Collaborative Research: Recalibrating CO2 and water diffusion through leaves to improve models of photosynthetic responses to the environment
合作研究:重新校准二氧化碳和水通过叶子的扩散,以改进光合作用对环境的响应模型
- 批准号:
1658951 - 财政年份:2017
- 资助金额:
$ 38.94万 - 项目类别:
Continuing Grant
Nucleation Studies with Sulfuric Acid (H2SO4) and Nitrogenous Bases
硫酸 (H2SO4) 和含氮碱的成核研究
- 批准号:
1338706 - 财政年份:2014
- 资助金额:
$ 38.94万 - 项目类别:
Continuing Grant
RUI: Laboratory Studies of Particle Nucleation--Homogeneous Nucleation Involving Sulfuric Acid (H2SO4), Water (H2O), and Ammonia (NH3) Vapors
RUI:粒子成核的实验室研究——涉及硫酸 (H2SO4)、水 (H2O) 和氨 (NH3) 蒸气的均质成核
- 批准号:
0943721 - 财政年份:2010
- 资助金额:
$ 38.94万 - 项目类别:
Continuing Grant
Collaborative Research: Development of POGIL-IC Modules for General Chemistry
合作研究:普通化学 POGIL-IC 模块的开发
- 批准号:
0632957 - 财政年份:2007
- 资助金额:
$ 38.94万 - 项目类别:
Standard Grant
Collaborative Research: Light Enhanced 13C Enrichment of Dark Respired CO2: Implications for Leaf Internal CO2 Conductance and Respiration in the Light
合作研究:光增强暗呼吸 CO2 的 13C 富集:对叶片内部 CO2 电导和光呼吸的影响
- 批准号:
0719118 - 财政年份:2007
- 资助金额:
$ 38.94万 - 项目类别:
Standard Grant
STTR Phase I: An Actuated Skin for Robotic Facial Expressions
STTR 第一阶段:用于机器人面部表情的驱动皮肤
- 批准号:
0539852 - 财政年份:2006
- 资助金额:
$ 38.94万 - 项目类别:
Standard Grant
Development and Field Assessment of Web-Based Activities for General Chemistry
普通化学网络活动的开发和现场评估
- 批准号:
0341485 - 财政年份:2004
- 资助金额:
$ 38.94万 - 项目类别:
Standard Grant
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