CAREER: Comprehensive Evaluation of Critical Properties of Amine Salts and Their Impacts on Ambient Aerosol

职业：胺盐关键性质及其对环境气溶胶影响的综合评价

• 批准号: 1847019
• 负责人: Chong Qiu
• 金额: $ 69.46万
• 依托单位: University of New Haven
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1847019&HistoricalAwards=false
• 关键词: CAREER; Comprehensive; Evaluation; Critical; Properties

This project is an integrated research, education, and outreach program to improve understanding of nitrogen containing particles in the atmosphere. The research team will measure several physical and chemical properties of salts of ammonia, which includes nitrogen. The team will include undergraduate students participating in a project-based learning class taught by the PI. Measurements will be used to develop a model to predict behavior of these salts in the atmosphere and the model will be evaluated with measurements from the field. The knowledge gained, and the updated model, will improve the representation of these particles in both weather and air quality models. Additionally, the project will provide scientific research opportunities for many students at a primarily undergraduate institution.This research is comprised of six objectives: (1) measure several fundamental physical and chemical properties of amine salts relevant to aerosol formation and transformation, including density, surface tension, viscosity, thermostability, phase transition, and hygroscopicity; (2) determine the properties of aerosol partially modified with amine salts; (3) develop chemical-structure based parameters and improve current atmospheric models; (4) conduct field measurements on ambient amines; (5) incorporate the research into several courses at University of New Haven (UNH); and (6) organize outreach activities for grades 6-12 studentsThis 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.

该项目是一个综合性的研究、教育和推广计划，旨在提高对大气中含氮颗粒物的了解。研究小组将测量氨盐的几个物理和化学性质，其中包括氮。该团队将包括参加由PI教授的基于项目的学习课程的本科生。测量结果将被用来开发一个模型来预测这些盐在大气中的行为，该模型将与实地测量结果一起进行评估。所获得的知识和更新的模型将改善这些颗粒物在天气和空气质量模型中的表现。这项研究包括六个目标：(1)测量与气溶胶形成和转化有关的胺盐的几个基本物理化学性质，包括密度、表面张力、粘度、热稳定性、相变和吸湿性；(2)确定用胺盐部分改性的气溶胶的性质；(3)开发基于化学结构的参数并改进当前的大气模型；(4)对周围的胺进行现场测量；(5)将这项研究纳入纽黑文大学的几门课程；以及(6)为6-12年级的学生组织外展活动该奖项反映了NSF的法定使命，并通过使用基金会的智力优势和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Potential enhancement in atmospheric new particle formation by amine-assisted nitric acid condensation at room temperature

室温下胺辅助硝酸缩合可能增强大气新颗粒的形成

• DOI: 10.1016/j.atmosenv.2022.119252
• 发表时间: 2022
• 期刊: Atmospheric Environment
• 影响因子: 5
• 作者: Chen, Kuanfu;Zhang, Kai;Qiu, Chong
• 通讯作者: Qiu, Chong

Modeling Investigation on Amines and Sea-salt Aerosol Interactions to Assess Their Potential Climate Impacts

胺和海盐气溶胶相互作用的建模研究，以评估其潜在的气候影响

• 发表时间: 2022
• 期刊: Connecticut Scienece and Engineering Fair
• 作者: Sundararajan, P.;Qiu, C.
• 通讯作者: Qiu, C.

Modeling the Effects of Alkylamines on Sea Salt Aerosols using the Extended Aerosols and Inorganics Model

使用扩展气溶胶和无机模型模拟烷基胺对海盐气溶胶的影响

• 发表时间: 2022
• 期刊: Journal of emerging investigators
• 作者: Chang, E.;Yalamanchili, T.;Qiu, C.
• 通讯作者: Qiu, C.

Modelling the effects of atmospheric alkylamines on the properties of sea salt aerosols using the extended aerosols and inorganics model (E-AIM)

使用扩展气溶胶和无机物模型 (E-AIM) 模拟大气烷基胺对海盐气溶胶特性的影响

• 发表时间: 2021
• 期刊: The 262nd American Chemical Society National Meeting & Exposition
• 作者: Chen, K.;Zhang, K.;Qiu, C.
• 通讯作者: Qiu, C.

Effects of particle phase acidity and gaseous ammonia on the heterogenous interactions between amines and ambient aerosol

颗粒相酸度和气态氨对胺与环境气溶胶之间异质相互作用的影响

• 发表时间: 2021
• 期刊: The 262nd American Chemical Society National Meeting & Exposition
• 作者: Hang, Y.-J.;Newberry, C.;DeMayo, R.;Qiu, C.
• 通讯作者: Qiu, C.