Solar Hydrogen Generation Using Supramolecular Photocatalysts

利用超分子光催化剂太阳能制氢

• 批准号: 0911720
• 负责人: Frederick MacDonnell
• 金额: $ 32.53万
• 依托单位: University of Texas at Arlington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0911720&HistoricalAwards=false
• 关键词: Solar; Hydrogen; Generation; Using; Supramolecular

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). The Inorganic, Bioinorganic, and Organometallic Chemistry Program supports the efforts of Professors Frederick M. MacDonnell and Norma S. Tacconi of the University of Texas at Arlington for the investigation of an integrated approach towards the design, testing and detailed mechanistic analysis of supramolecular photocatalysts (SPCs) for solar hydrogen production. The SPCs are assemblies of chromophores/photosensitizers, bridging acceptor ligands designed to act as the site of temporary electron storage, and hydrogen-evolving platinum co-catalysts. Promising photocatalysts are examined in detail to determine the speciation, ground and excited state properties, and mechanisms of action. Mechanistic details address several fundamental scientific questions regarding sequential vs. concerted proton-coupled electron transfer (PCET) reactions. This research may enable the development of molecular photocatalysts that will use solar energy to form hydrogen, ideally from water. Graduate and undergraduate students involved in the project receive a broad training in the synthesis of inorganic complexes, photochemistry, theory, catalysis and time- and frequency-resolved spectroscopy.

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。 无机，生物无机和有机化学计划支持教授弗雷德里克M。MacDonnell和Norma S.德克萨斯大学阿灵顿分校的Tacconi博士，研究太阳能制氢超分子光催化剂（SPC）的设计、测试和详细机理分析的综合方法。 SPC是发色团/光敏剂、被设计为充当临时电子存储位点的桥接受体配体和析氢铂助催化剂的组装体。有前途的光催化剂进行了详细的检查，以确定物种，地面和激发态的属性，和机制的行动。 机制细节解决了几个基本的科学问题，关于顺序与协调质子耦合电子转移（PCET）反应。 这项研究可能使分子光催化剂的发展，将使用太阳能形成氢，理想的是从水。 参与该项目的研究生和本科生在无机复合物的合成，光化学，理论，催化和时间和频率分辨光谱学方面接受广泛的培训。