Nanodroplets to nanoparticles: Integretated studies of freezing
纳米液滴到纳米粒子:冷冻的综合研究
基本信息
- 批准号:1213959
- 负责人:
- 金额:$ 47.84万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2012
- 资助国家:美国
- 起止时间:2012-09-01 至 2016-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
This award, funded by the Chemical Structure, Dynamics and Mechanisms program of the Division of Chemistry, supports the research of Prof. Barbara Wyslouzil and her students at The Ohio State University. The overarching goal of the proposed research is to explore the physics of freezing including the limits to which liquids can be supercooled, the transformation kinetics and the structure of the emerging solid phase. This research integrates experimental and molecular modeling. The specific experimental objectives include: 1) measurement of liquid-solid nucleation rates as nanodroplets freeze, 2) the exploration of the role of molecular structure on the relative importance of the surface versus bulk freezing and 3) the development to x-ray scattering techniques to follow the transformations in situ. Molecular modeling is used to understand the driving force for the surface freezing in chain-like molecules and to calculate liquid-solid nucleation rates to compare directly to the measured values. Freezing, or crystallization from the melt, is a fundamental physical process that plays a central role in a broad range of industrial and natural processes. Developing a deeper understanding of this phenomenon, measuring phase transition rates and exploring the role free surfaces play in freezing are all crucial for developing accurate models of industrial processes, atmospheric chemistry and global climate.In a broader context, this work develops novel applications of small angle scattering, aerosol spectroscopy, and molecular modeling techniques that address fundamental problems in aerosol science. The results stemming from this work are of interest to researchers in nucleation, polymer physics, materials science, and aerosol and cloud physics. The program provides a rich and varied research environment for students, from high school to graduate level that is highly interdisciplinary.
该奖项由化学系的化学结构,动力学和机制计划资助,支持俄亥俄州州立大学的Barbara Wyslouzil教授和她的学生的研究。拟议研究的总体目标是探索冻结的物理学,包括液体可以过冷的极限,转变动力学和新兴固相的结构。这项研究整合了实验和分子建模。 具体的实验目标包括:1)测量液-固成核率作为nanodrophets冻结,2)的分子结构的作用的相对重要性的表面与散装冻结和3)的开发,以跟踪在原位的转换的X射线散射技术的探索。 分子模拟用于理解链状分子中表面冻结的驱动力,并计算液-固成核速率,以直接与测量值进行比较。冻结或从熔体中结晶是一个基本的物理过程,在广泛的工业和自然过程中发挥着核心作用。发展对这一现象的更深入的理解,测量相变速率和探索自由表面在冻结中的作用对于开发工业过程,大气化学和全球气候的精确模型都是至关重要的。在更广泛的背景下,这项工作开发了小角散射,气溶胶光谱学和分子建模技术的新应用,解决了气溶胶科学中的基本问题。这项工作的结果是感兴趣的研究人员在成核,聚合物物理,材料科学,气溶胶和云物理。该计划为学生提供了丰富多样的研究环境,从高中到研究生水平,是高度跨学科的。
项目成果
期刊论文数量(1)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
How Cubic Can Ice Be?
- DOI:10.1021/acs.jpclett.7b01142
- 发表时间:2017-07-20
- 期刊:
- 影响因子:5.7
- 作者:Amaya, Andrew J.;Pathak, Harshad;Wyslouzil, Barbara E.
- 通讯作者:Wyslouzil, Barbara E.
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Barbara Wyslouzil其他文献
AS&T virtual collection: Aerosol particle physical chemistry
作为
- DOI:
- 发表时间:
2024 - 期刊:
- 影响因子:5.2
- 作者:
C. Dutcher;M. Tolbert;Barbara Wyslouzil - 通讯作者:
Barbara Wyslouzil
Investigation of magnetic nanoparticle recovery using a quadrupole magnetic field via numerical simulation and SAXS
通过数值模拟和小角X射线散射(SAXS)研究利用四极磁场回收磁性纳米粒子
- DOI:
10.1016/j.seppur.2025.133504 - 发表时间:
2025-11-01 - 期刊:
- 影响因子:9.000
- 作者:
Xian Wu;Hyeon Choe;Stefano Ciannella;Karla Mercedes Paz Gonzalez;Linh Nguyen T. Tran;Poornima Ramesh Iyer;Bennett A. Yunker;Ioannis H. Karampelas;Kai Wu;Maciej Zborowski;Barbara Wyslouzil;Jeffrey Chalmers;Jenifer Gomez-Pastora - 通讯作者:
Jenifer Gomez-Pastora
Experimental and computational investigation of mixing dynamics in millifluidic jet mixing reactors
毫流射流混合反应器中混合动力学的实验与计算研究
- DOI:
10.1016/j.cej.2025.164078 - 发表时间:
2025-07-15 - 期刊:
- 影响因子:13.200
- 作者:
Godstand Aimiuwu;Faiz Khan;David Mualen;Wei-Ting Tang;Nicholas A. Brunelli;Joel A. Paulson;Jessica O. Winter;Barbara Wyslouzil - 通讯作者:
Barbara Wyslouzil
Barbara Wyslouzil的其他文献
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{{ truncateString('Barbara Wyslouzil', 18)}}的其他基金
Vapor-Liquid-Ice: Exploring Water's Phase Transitions Far from Equilibrium
汽-液-冰:探索远离平衡状态的水的相变
- 批准号:
1900064 - 财政年份:2019
- 资助金额:
$ 47.84万 - 项目类别:
Standard Grant
UNS: Heterogeneous Nucleation on Nanoparticles
UNS:纳米颗粒上的异质成核
- 批准号:
1511498 - 财政年份:2015
- 资助金额:
$ 47.84万 - 项目类别:
Standard Grant
Integrated studies of nanodroplet freezing
纳米液滴冷冻的综合研究
- 批准号:
1464924 - 财政年份:2015
- 资助金额:
$ 47.84万 - 项目类别:
Standard Grant
GOALI: Collaborative Research: Fundamental Studies of water-hydrocarbon condensation
目标:合作研究:水-烃凝结的基础研究
- 批准号:
1033439 - 财政年份:2010
- 资助金额:
$ 47.84万 - 项目类别:
Standard Grant
Nanodroplet aerosols: Nucleation rates and structure
纳米液滴气溶胶:成核率和结构
- 批准号:
0911144 - 财政年份:2009
- 资助金额:
$ 47.84万 - 项目类别:
Continuing Grant
The formation rates and structure of nanodroplets
纳米液滴的形成速率和结构
- 批准号:
0518042 - 财政年份:2005
- 资助金额:
$ 47.84万 - 项目类别:
Continuing Grant
U. S. Germany Cooperative Research: Collaborative Experimental Investigation of Vapor Phase Nucleation
美德合作研究:气相成核的合作实验研究
- 批准号:
0410050 - 财政年份:2003
- 资助金额:
$ 47.84万 - 项目类别:
Standard Grant
CRAEMS: Fundamental Studies of Nanoparticle Formation in Air Pollution
CRAEMS:空气污染中纳米颗粒形成的基础研究
- 批准号:
0410045 - 财政年份:2003
- 资助金额:
$ 47.84万 - 项目类别:
Continuing Grant
Nanodroplet Aerosols: Formation and Structure
纳米液滴气溶胶:形成和结构
- 批准号:
0410037 - 财政年份:2003
- 资助金额:
$ 47.84万 - 项目类别:
Continuing Grant
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