CAS: Electrochemical Processes of Chelated Metals

CAS：螯合金属的电化学过程

• 批准号: 2155227
• 负责人: Michael Marshak
• 金额: $ 44.39万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-05-01 至 2025-04-30
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2155227&HistoricalAwards=false
• 关键词: CAS; Electrochemical; Processes; Chelated; Metals

In this project, funded by the Chemical Structure, Dynamics & Mechanisms B Program of the Chemistry Division, Professor Michael Marshak of the Department of Chemistry at the University of Colorado Boulder is developing new materials for grid-scale long duration energy storage. Grid-scale energy storage is a longstanding and unmet need to support the sustainable production of electricity from intermittent sources such as wind and solar. Flow batteries offer a compelling engineering framework for providing inexpensive energy storage because they permit independent scaling of their power conversion and energy storage components. This project supports investigation of the fundamental electrochemical behavior of metal chelate materials as sustainable and scalable energy storage materials in flow batteries. This project also supports the development of new education and outreach programs in battery chemistry, with the goal of creating a competitive and equitable US workforce in clean energy technologies.The goal of the project aims to provide a fundamental molecular understanding of a broad class of metal chelate coordination complexes, coupled with the evaluation of these chemical phenomena to improve system level flow battery performance. This understanding will be accomplished through the evaluation of the ability of organic chelates to inhibit water splitting reactions and test its performance limits. This approach will then be expanded to develop metal chelate complexes that can undergo multi-electron redox reactions, which can further increase the energy density and performance of the flow battery systems. This project represents a new approach to address longstanding challenges in the field of energy storage with low-cost materials that are economically feasible for wide scale deployment. Moreover, this project not only could prove transformative for enabling high-voltage aqueous batteries, but the molecular inhibition of water splitting using chelates could also carry wider implications for controlling hydrogen evolution reactions in other electrochemical and electrocatalytic applications such as electrochemical fuel production.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.

在这个项目中，由化学部化学结构、动力学和机制B项目资助，科罗拉多大学博尔德分校化学系的Michael Marshak教授正在开发用于电网规模长期储能的新材料。电网规模的储能是支持风能和太阳能等间歇性能源可持续发电的长期且未得到满足的需求。液流电池为提供廉价的能量存储提供了一个引人注目的工程框架，因为它们允许独立扩展其功率转换和能量存储组件。该项目支持对金属螯合物材料作为液流电池中可持续和可扩展的储能材料的基本电化学行为的研究。该项目还支持电池化学领域新教育和推广计划的发展，目标是在清洁能源技术领域培养一支具有竞争力和公平性的美国劳动力队伍。该项目的目标是提供对广泛金属类别的基本分子理解螯合配位配合物，再加上对这些化学现象的评估，以提高系统级液流电池的性能。这种理解将通过评估有机螯合物抑制水分解反应的能力并测试其性能极限来实现。然后，这种方法将被扩展到开发可以进行多电子氧化还原反应的金属螯合物，这可以进一步提高液流电池系统的能量密度和性能。该项目代表了一种新方法，可以利用经济上可行的大规模部署低成本材料来解决能源存储领域长期存在的挑战。此外，该项目不仅可以证明对实现高压水电池具有变革性，而且使用螯合物对水分解的分子抑制也可以对控制电化学燃料生产等其他电化学和电催化应用中的析氢反应产生更广泛的影响。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影响审查标准进行评估，被认为值得支持。

项目成果

Maximizing Vanadium Deployment in Redox Flow Batteries Through Chelation

通过螯合最大限度地提高氧化还原液流电池中钒的分布

• DOI: 10.1021/jacs.2c07076
• 发表时间: 2022
• 期刊: Journal of the American Chemical Society
• 影响因子: 15
• 作者: Waters, Scott E.;Davis, Casey M.;Thurston, Jonathan R.;Marshak, Michael P.
• 通讯作者: Marshak, Michael P.

Isolation and Characterization of a Highly Reducing Aqueous Chromium(II) Complex

高还原性水性铬 (II) 配合物的分离和表征

• DOI: 10.1021/acs.inorgchem.2c00699
• 发表时间: 2022
• 期刊: Inorganic Chemistry
• 影响因子: 4.6
• 作者: Waters, Scott E.;Robb, Brian H.;Scappaticci, Steven J.;Saraidaridis, James D.;Marshak, Michael P.
• 通讯作者: Marshak, Michael P.

Monitoring Ion Exchange Chromatography with Affordable Flame Emission Spectroscopy

使用经济实惠的火焰发射光谱仪监测离子交换色谱

• DOI: 10.1021/acs.jchemed.2c00455
• 发表时间: 2022
• 期刊: Journal of Chemical Education
• 影响因子: 3
• 作者: Thurston, Jonathan R.;Marshak, Michael P.;Reber, David
• 通讯作者: Reber, David