A Graph-based Methodology for Modeling the Nucleation of Weak Electrolytes
基于图形的弱电解质成核建模方法
基本信息
- 批准号:2317787
- 负责人:
- 金额:$ 45.95万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2023
- 资助国家:美国
- 起止时间:2023-09-01 至 2026-08-31
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
With support from the Chemical Theory, Models and Computational Methods program in the Division of Chemistry, Professor Jordan R. Schmidt of University of Wisconsin-Madison will develop new methods for simulating the growth of crystals in solution. The nucleation and growth of crystals is a ubiquitous phenomenon that underlies many chemical and biological processes, from the formation of water ice to the growth of bone via biomineralization. Schmidt and his research team will develop and apply new methods that allow the initial stages of crystal growth to be examined in atomistic detail via computer simulations, potentially opening the door to a better understanding for how to direct and control the growth of important crystalline materials. A special emphasis will be placed on modeling the growth of important solutes with low solubility, e.g., emerging nano-porous materials, where existing simulation methods are inadequate. Professor Schmidt will also conduct additional efforts to broaden participation in theoretical chemistry, both in this project and in the wider scientific community, via participation in the UW Madison Chemistry Opportunities (ChOPS) and ACS Bridge to the Doctorate programs. The Schmidt team will also focus on K-12 outreach activities, including live chemistry demonstrations, including those on crystal nucleation, at local elementary and middle schools and the Wisconsin Science Festival.In this project, the Schmidt group at U. Wisconsin-Madison will develop and apply a graph theory-based methodology that is tailored toward materials whose crystal structure exhibits directional bonding, whether purely electrostatic, or via coordination complexes, and thus can be described as a “graph” of connected monomers. Using a bootstrapping approach, the free energies of growing nuclei will be calculated via a rigorous approach rooted in statistical thermodynamics. The methodology eliminates the length- and timescale limitations inherent to the nucleation of such weak electrolytes (e.g. mass transport, desolvation) that currently preclude the atomistic simulation of weak electrolyte nucleation. Following development, validation and optimizations to further enhance the efficiency of this graph-based approach, the team will explore applications to simple salts, weak electrolytes, and nano-porous materials (i.e., metal-organic frameworks), an important class of low-solubility material where nucleation plays a key (and often limiting) role in materials synthesis and crystal engineering. The resulting codes/scripts will be released in open-source form via GitHub to enable applications to other domains by the scientific community at large.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.
在化学系的化学理论、模型和计算方法项目的支持下,乔丹·R。威斯康星大学麦迪逊分校的施密特将开发新的方法来模拟晶体在溶液中的生长。晶体的成核和生长是一种普遍存在的现象,是许多化学和生物过程的基础,从水冰的形成到通过生物矿化的骨骼生长。施密特和他的研究小组将开发和应用新的方法,使晶体生长的初始阶段通过计算机模拟进行原子细节检查,可能打开大门,以更好地了解如何指导和控制重要晶体材料的生长。一个特别的重点将放在模拟具有低溶解度的重要溶质的生长上,例如,新兴的纳米多孔材料,现有的模拟方法是不够的。 教授施密特还将进行额外的努力,以扩大在理论化学的参与,无论是在这个项目和更广泛的科学界,通过在华盛顿大学麦迪逊化学机会(ChOPS)和ACS桥博士课程的参与。施密特团队还将专注于K-12外展活动,包括现场化学演示,包括晶体成核,在当地小学和中学和威斯康星州科学节。Wisconsin-Madison将开发和应用一种基于图论的方法,该方法针对晶体结构具有定向键合的材料,无论是纯静电键合还是通过配位复合物键合,因此可以描述为连接单体的“图形”。使用自举方法,生长核的自由能将通过扎根于统计热力学的严格方法计算。该方法消除了这种弱电解质成核(例如,质量传递,去溶剂化),目前排除弱电解质成核的原子模拟固有的长度和时间尺度的限制。在开发、验证和优化以进一步提高这种基于图形的方法的效率之后,该团队将探索简单盐、弱电解质和纳米多孔材料(即,金属-有机框架),一类重要的低溶解度材料,其中成核在材料合成和晶体工程中起关键(并且通常是限制性的)作用。该奖项反映了NSF的法定使命,并通过使用基金会的知识价值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
期刊论文数量(0)
专著数量(0)
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专利数量(0)
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Jordan Schmidt其他文献
Jordan Schmidt的其他文献
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{{ truncateString('Jordan Schmidt', 18)}}的其他基金
Role of Bismuth Promoters in Heterogeneous Pt-Bi and Pd-Bi Catalysts: Computational Insights into Main Group Promotion
铋促进剂在异质 Pt-Bi 和 Pd-Bi 催化剂中的作用:对主族促进的计算见解
- 批准号:
1362136 - 财政年份:2014
- 资助金额:
$ 45.95万 - 项目类别:
Standard Grant
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