Metallocene-based compounds for redox flow batteries

用于氧化还原液流电池的茂金属化合物

• 批准号: 1665267
• 负责人: Christopher Ziegler
• 金额: $ 39.39万
• 依托单位: University of Akron
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-07-01 至 2022-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1665267&HistoricalAwards=false
• 关键词: Metallocene; based; compounds; redox; flow

The Chemical Structure, Dynamics, and Mechanism B Program (CSDMB) of the Chemistry Division supports this project by Professors Christopher J. Ziegler and Aliaksei Boika. Professors Ziegler and Boika are faculty members in the Department of Chemistry at The University of Akron. Professors Ziegler and Boika are working to develop new compounds for use in improving the performance of redox flow batteries (RFBs). Redox flow batteries can potentially serve as a scalable solution for storing the energy derived from renewable sources such as wind and sunlight. The batteries use the energy to make a charged species at each electrode. These charged species are then flowed into a holding cells where they are stored. When the energy is needed again, the charged species are flowed back into the cell and the battery run in the opposite direction giving back all of the energy initially used to make the charges. Key to this approach is the stability charged species that are stored and the reversibility of their formation. To date, the chemical compounds used for this purpose have not been ideal and lack many of the characteristics needed for a RFB to be practical. Professors Ziegler and Boika are approaching this problem using a compound called ferrocene as a building block; ferrocene has been known for more than half of a century and has optimal properties for a redox flow battery. The charges species are very stable, and their formation is perfectly reversible. By designing new materials incorporating multiple equivalents of this building block, the Ziegler and Boika research groups hope to advance development in scalable RFB technology. This research will additionally provide excellent training for future scientists, and will provide education opportunities for underrepresented groups in chemistry. Their work will also include outreach activities involving K-12 students as part of the funded project. Redox flow batteries (RFB) remain highly desirable targets for scalable energy storage, but the chemistry used in these devices can be improved significantly. The redox chemistry used in these cells suffers from low open circuit potentials, undesired side reactions, and caustic reaction conditions. Ferrocene, in many ways an ideal redox reagent, will be investigated by the Ziegler and Boika groups as a functional structural component in four types of RFB candidates: monoferrocenyl compounds, polyferrocenyl compounds, "all metallocene" single component materials, and ferrocene-based ionic liquids. The Ziegler lab has elucidated new sulfonyl based ferrocene chemistry which can be used as the linking moiety in the syntheses of these new materials. Both the Ziegler and Boika labs will fully characterize all new RFB candidates and evaluate their performances using electrochemical methods. The broader educational impacts of the proposed activity include the training of graduate students at The University of Akron, supporting the collaborative activities of the PI, and the promotion of underrepresented groups in chemistry, specifically through the ACS Project SEED, as synergistic activities. The PIs are developing an outreach program for K-12 students focusing on energy storage from renewable resources and how chemistry can assist with this central problem.

化学系的化学结构，动力学和机制B计划（CSDMB）支持克里斯托弗J.齐格勒和Aliaksei Boika教授的这个项目。 齐格勒教授和博伊卡教授是阿克伦大学化学系的教员。 齐格勒教授和博伊卡教授正在努力开发新的化合物，用于改善氧化还原液流电池（RFB）的性能。氧化还原液流电池有可能作为一种可扩展的解决方案，用于存储风能和阳光等可再生能源产生的能量。电池利用能量在每个电极上产生带电物质。然后，这些带电物质流入一个储存室，在那里它们被储存。当再次需要能量时，带电物质流回到电池中，电池以相反的方向运行，将最初用于充电的所有能量返回。这种方法的关键是储存的带电物质的稳定性及其形成的可逆性。迄今为止，用于此目的的化合物并不理想，并且缺乏RFB实用所需的许多特性。 齐格勒教授和博伊卡教授正在使用一种名为二茂铁的化合物作为构建块来解决这个问题;二茂铁已经被人们所知超过半个世纪，并且具有氧化还原液流电池的最佳性能。电荷种类非常稳定，并且它们的形成是完全可逆的。 通过设计新材料，将这种构建块的多种等效物结合在一起，齐格勒和Boika研究小组希望推进可扩展RFB技术的发展。 这项研究还将为未来的科学家提供良好的培训，并为化学领域代表性不足的群体提供教育机会。 他们的工作还将包括涉及K-12学生的外联活动，作为资助项目的一部分。 氧化还原液流电池（RFB）仍然是可扩展能量存储的高度理想的目标，但这些设备中使用的化学物质可以显着改进。 在这些电池中使用的氧化还原化学遭受低开路电势、不期望的副反应和苛性反应条件。二茂铁在许多方面是一种理想的氧化还原试剂，将由齐格勒和Boika基团作为四种类型的RFB候选物中的功能结构组分进行研究：单二茂铁基化合物，聚二茂铁基化合物，“全茂”单组分材料和基于二茂铁的离子液体。齐格勒实验室已经阐明了新的基于磺酰基的二茂铁化学，其可用作这些新材料合成中的连接部分。齐格勒和博伊卡实验室将充分表征所有新的RFB候选人，并使用电化学方法评估其性能。拟议活动的更广泛的教育影响包括阿克伦大学研究生的培训，支持PI的合作活动，以及促进化学中代表性不足的群体，特别是通过ACS项目SEED，作为协同活动。PI正在为K-12学生制定一项推广计划，重点关注可再生资源的能源储存以及化学如何帮助解决这一核心问题。

项目成果

Evaluating ferrocene ions and all-ferrocene salts for electrochemical applications

• DOI: 10.1016/j.jorganchem.2019.06.023
• 发表时间: 2019-10-01
• 期刊: JOURNAL OF ORGANOMETALLIC CHEMISTRY
• 影响因子: 2.3
• 作者: Schrage, Briana R.;Zhao, Zhiling;Ziegler, Christopher J.
• 通讯作者: Ziegler, Christopher J.

Highly Soluble Imidazolium Ferrocene Bis(sulfonate) Salts for Redox Flow Battery Applications

• DOI: 10.1021/acs.inorgchem.1c01473
• 发表时间: 2021-07-02
• 期刊: INORGANIC CHEMISTRY
• 影响因子: 4.6
• 作者: Schrage, Briana R.;Zhang, Baosen;Ziegler, Christopher J.
• 通讯作者: Ziegler, Christopher J.

Cation-Anion Redox Switching in an All-Ferrocene Salt

• DOI: 10.1002/celc.201801035
• 发表时间: 2018-09
• 期刊: ChemElectroChem
• 影响因子: 4
• 作者: B. Schrage;Zhiling Zhao;C. Ziegler;A. Boika

Investigations Into Aqueous Redox Flow Batteries Based on Ferrocene Bisulfonate

• DOI: 10.1021/acsaem.0c02259
• 发表时间: 2020-10-26
• 期刊: ACS APPLIED ENERGY MATERIALS
• 影响因子: 6.4
• 作者: Zhao, Zhiling;Zhang, Baosen;Boika, Aliaksei
• 通讯作者: Boika, Aliaksei