CAREER: Fundamentals and Applications of Electrochemically Active Nanofluids for Energy Storage and Conversion

职业：用于能量存储和转换的电化学活性纳米流体的基础和应用

• 批准号: 2338147
• 负责人: Sujat Sen
• 金额: $ 55.66万
• 依托单位: University of Wisconsin-La Crosse
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2024
• 资助国家: 美国
• 起止时间: 2024-07-01 至 2029-06-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2338147&HistoricalAwards=false
• 关键词: CAREER; Fundamentals; Applications; Electrochemically; Active

Colloidal suspensions of nano-sized particles in fluids such as water (also known as nanofluids) are increasingly finding use in a variety of energy applications, especially energy storage and conversion systems. This project will address the knowledge gap that exists in the understanding how nanofluids containing electrochemically active materials can be developed and used for various applications. The project will promote knowledge-sharing activities such as mentored undergraduate research, inclusion of research activities into the curriculum with a focus on skill-building activities such as group presentations, and scientific writing. Another significant goal is the enhancement of scientific training of undergraduate students in the classroom using chemical simulation tools with emphasis on methods to circumvent the traditional barriers to their entry. These exercises will be developed with a focus on electrochemical technologies such as batteries, fuel cells, solar cells and electrolyzers, which are becoming increasingly important to expand the use of renewable energy. A majority of the fundamental understanding of nanofluid systems comes from suspensions containing redox-inactive materials such as silica and alumina, well supported and guided by modeling efforts based on Derjaguin-Landau-Verwey-Overbeek (DLVO) theory. However, a large knowledge gap exists in the understanding of electron transfer in nanofluids containing redox-active materials. Objectives include the use of graft molecules for modifying the surface of redox active nanoparticle and assessing its effect on both colloidal stability and electron transfer through a variety of in-situ measurements. Variations in charge, steric and chemisorption functionality of the grafts will be used to understand the effects on rheology and redox mediation to establish structure-property relations and transport mechanisms. The developed nanofluids will also be optimized for interaction with carbon dioxide to maximize catalytic conversion and explore absorption capacity. Integrated with these are educational objectives, centered on developing modules for undergraduate students to use graphical user interface (GUI)-based computational methods. Inter-disciplinary methods in materials science, electrochemistry, computer-aided design tools and modern manufacturing methods will be used to accomplish these goals.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.

诸如水（也称为纳米流体）流体中纳米尺寸颗粒的胶体悬浮液越来越多地在各种能源应用中使用，尤其是能量存储和转换系统。该项目将解决了解如何开发和用于各种应用中含有电化学材料的纳米流体中存在的知识差距。该项目将促进知识共享活动，例如指导的本科研究，将研究活动纳入课程中，重点关注技能建设活动，例如小组演讲和科学写作。另一个重要的目标是使用化学模拟工具对课堂上的本科生进行科学培训，重点是规避传统障碍的方法。这些练习将以电池，燃料电池，太阳能电池和电解质等电化学技术为重点，这些技术对于扩大可再生能源的使用变得越来越重要。对纳米流体系统的大多数基本理解都来自含有氧化还原材料（例如二氧化硅和氧化铝）的悬浮液，并通过基于Derjaguin-landau-landau-verwey-overbeek（DLVO）理论的建模工作得到了很好的支持和指导。然而，在理解含有氧化还原活性材料的纳米流体中的电子转移时，存在很大的知识差距。目标包括使用移植分子修改氧化还原活性纳米颗粒的表面，并通过多种位于原地测量值评估其对胶体稳定性和电子转移的影响。移植物的负荷，空间和化学吸附功能将用于了解对流变学和氧化还原介导的影响，以建立结构 - 质体关系和运输机制。开发的纳米流体还将优化与二氧化碳相互作用，以最大程度地提高催化转化并探索吸收能力。与这些集成在一起的是教育目标，集中在为本科生使用图形用户界面（GUI）的计算方法开发模块。材料科学，电化学，计算机辅助设计工具和现代制造方法的跨学科方法将用于实现这些目标。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛影响的评估评估来支持的。