CAS: Enhanced Electrocatalytic Hydrogen Production with Polymer-Supported [2Fe-2S] Clusters

CAS：利用聚合物支撑的 [2Fe-2S] 簇增强电催化产氢

基本信息

批准号：
1954641
负责人：
Dennis Lichtenberger
金额：
$ 52万
依托单位：
University of Arizona
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2020
资助国家：
美国
起止时间：
2020-09-01 至 2024-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1954641&HistoricalAwards=false
关键词：
CAS Enhanced Electrocatalytic Hydrogen Production

项目摘要

With support from the Chemical Catalysis Program of the Division of Chemistry at the National Science Foundation, the research team headed by Professors Dennis Lichtenberger, Jeffrey Pyun, and Richard Glass at the University of Arizona are developing new approaches for producing hydrogen gas from water using electricity. This research is relevant to the U.S. economy because hydrogen gas is used to make many industrial products, including fertilizers and fuels. The team is developing catalysts to speed up the product formation and notably, the catalysts made by this team are made of earth-abundant iron and sulfur. Similar iron-sulfur catalysts are found in nature, but they are fragile. The new catalysts, after being modified with special polymers, are rugged. The goal of this research is to learn how the polymer enhances the catalyst reactivity and to optimize the system's performance so more fuel is produced in less time. One specific project involves changing the structure of the polymer and the way it is attached to the catalyst. This award also provides students with hands-on experience in the areas of catalysis and energy science. Once engaged in a collaborative project, the students are exposed to a variety of disciplines and technical cultures, which makes them better leaders. An integral part of the project is outreach to the community with emphasis on women in STEM and K-12 students and teachers. With support from the Chemical Catalysis (CAT) Program in NSF's Division of Chemistry, the research team headed by Professors Dennis Lichtenberger, Jeffrey Pyun, and Richard Glass at The University of Arizona are developing new catalysts for the production of hydrogen (H2). The research promises to contribute to a clean and sustainable energy economy using intermittent energy sources such as solar and wind as the electricity generated from these sources can be directly stored in the two-electron chemical bond of H2. This same energy can be easily recovered by burning the hydrogen or by converting the energy back to electricity with a fuel cell, both of which cycle the hydrogen back to water. Typically, the most effective materials for converting electricity and water to hydrogen are platinum and other expensive metals that are too rare to employ on a large scale for a broad energy economy. Nature has solved this problem with hydrogenase enzymes, which feature iron sulfides embedded in the structure of the enzyme to efficiently produce hydrogen. With this inspiration from nature, the first-generation system of iron and sulfur embedded in a metallopolymer created by the team at the University of Arizona produces hydrogen 25 times faster than the natural enzyme and approaches platinum in efficiency. The research prepares students for the technical workforce that will support the U.S. economy.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.

在美国国家科学基金会化学部化学催化项目的支持下，亚利桑那大学 Dennis Lichtenberger、Jeffrey Pyun 和 Richard Glass 教授领导的研究小组正在开发利用电从水中生产氢气的新方法。这项研究与美国经济相关，因为氢气用于制造许多工业产品，包括化肥和燃料。该团队正在开发催化剂以加速产物形成，值得注意的是，该团队制造的催化剂是由地球上丰富的铁和硫制成的。类似的铁硫催化剂在自然界中也存在，但它们很脆弱。这种新型催化剂经过特殊聚合物改性后非常坚固。这项研究的目的是了解聚合物如何增强催化剂反应性并优化系统性能，以便在更短的时间内生产更多的燃料。一个具体项目涉及改变聚合物的结构及其与催化剂的连接方式。该奖项还为学生提供了催化和能源科学领域的实践经验。一旦参与协作项目，学生就会接触到各种学科和技术文化，这使他们成为更好的领导者。该项目的一个组成部分是向社区进行推广，重点关注 STEM 和 K-12 学生和教师中的女性。在 NSF 化学部化学催化 (CAT) 项目的支持下，由亚利桑那大学 Dennis Lichtenberger、Jeffrey Pyun 和 Richard Glass 教授领导的研究小组正在开发用于生产氢气 (H2) 的新型催化剂。该研究有望利用太阳能和风能等间歇性能源为清洁和可持续的能源经济做出贡献，因为这些能源产生的电力可以直接存储在H2的双电子化学键中。通过燃烧氢气或通过燃料电池将能量转换回电能，可以轻松回收同样的能量，这两种方法都将氢气循环回水。通常，将电力和水转化为氢气的最有效材料是铂和其他昂贵的金属，这些金属太稀有，无法在广泛的能源经济中大规模使用。大自然通过氢化酶解决了这个问题，其特点是在酶的结构中嵌入硫化铁，以有效地产生氢气。受大自然的启发，亚利桑那大学团队创建的第一代铁和硫嵌入金属聚合物中的系统产生氢气的速度比天然酶快 25 倍，效率接近铂。该研究帮助学生为支持美国经济的技术劳动力做好准备。该奖项反映了 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

期刊论文数量（3）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Synthesis of Metallopolymers via Atom Transfer Radical Polymerization from a [2Fe‐2S] Metalloinitiator: Molecular Weight Effects on Electrocatalytic Hydrogen Production

[2Fe-2S] 金属引发剂通过原子转移自由基聚合合成金属聚合物：分子量对电催化产氢的影响

DOI：
10.1002/marc.201900424
发表时间：
2019
期刊：
Macromolecular Rapid Communications
影响因子：
4.6
作者：
Karayilan, Metin;McCleary‐Petersen, Keelee Cathleen;Hamilton, Meghan O'Brien;Fu, Liye;Matyjaszewski, Krzysztof;Glass, Richard S.;Lichtenberger, Dennis L.;Pyun, Jeffrey
通讯作者：
Pyun, Jeffrey

Natural Assembly of Electroactive Metallopolymers on the Electrode Surface: Enhanced Electrocatalytic Production of Hydrogen by [2Fe–2S] Metallopolymers in Neutral Water

电极表面电活性金属聚合物的自然组装：[2Fe-2S]金属聚合物在中性水中增强电催化产氢

DOI：
10.1021/jacs.3c03379
发表时间：
2023
期刊：
Journal of the American Chemical Society
影响因子：
15
作者：
Clary, Kayla E.;Gibson, Arthur C.;Glass, Richard S.;Pyun, Jeffrey;Lichtenberger, Dennis L.
通讯作者：
Lichtenberger, Dennis L.

Increasing the rate of the hydrogen evolution reaction in neutral water with protic buffer electrolytes

DOI：
10.1073/pnas.2012085117
发表时间：
2020-12-29
期刊：
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
影响因子：
11.1
作者：
Clary, Kayla E.;Karayilan, Metin;Lichtenberger, Dennis L.
通讯作者：
Lichtenberger, Dennis L.