RUI: Production of Highly Reactive Metal-Oxo Species with Molecular Oxygen and Visible Light for the Selective Oxidative Catalysis

RUI：利用分子氧和可见光生产高反应性金属氧物种，用于选择性氧化催化

• 批准号: 1464886
• 负责人: Rui Zhang
• 金额: $ 30.05万
• 依托单位: Western Kentucky University Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2015
• 资助国家: 美国
• 起止时间: 2015-09-01 至 2019-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1464886&HistoricalAwards=false
• 关键词: RUI; Production; Highly; Reactive; Metal

In this project funded by the Chemical Catalysis Program of the Chemistry Division, Professor Rui Zhang at the Western Kentucky University is designing efficient photocatalysts (catalysts that function with the input of light) that can utilize sunlight to activate oxygen and transfer it to other chemicals, also termed oxidation. The use of sunlight and atmospheric oxygen rather than a chemical reagent in the oxidation processes of bulk chemicals would be more sustainable, generate less chemical waste, and potentially reduce economic costs associated with the process. The research may impact the fundamental science and technology of green chemistry. The project is providing cutting-edge research experiences for the participating undergraduate STEM students and thereby training future STEM professionals. High school students from Gatton Academy are also spending time in the laboratory and learning about catalysis research.Dr. Zhang is studying ways to produce highly reactive metal(V)-oxo species in a catalytic cycle through photo-disproportionation of mu-oxo metal(IV) dimers. Initial studies in this research laboratory have demonstrated unique reactivity of ruthenium(IV) mu-oxo bisporphyrins and iron(IV) mu-oxo corroles in which high valent transition-metal oxo intermediates are accessed through the disproportionation. Now, Prof. Zhang is studying ways to produce the more reactive manganese(V)-oxo species via photo-disproportionation reactions and to develop efficient oxidations catalyzed by more stable metallocorrole complexes. Synthetic pathways are being developed to link a photosensitizer to the catalyst and to improve the light harvesting efficiency of the catalyst.

在这个由化学系化学催化项目资助的项目中，西肯塔基州大学的Rui Zhang教授正在设计高效的光催化剂（在光输入下起作用的催化剂），该催化剂可以利用阳光激活氧气并将其转移到其他化学物质中，也称为氧化。在散装化学品的氧化过程中使用阳光和大气中的氧气而不是化学试剂将更可持续，产生更少的化学废物，并可能降低与该过程相关的经济成本。 该研究将对绿色化学的基础科学和技术产生重大影响。 该项目为参与的本科STEM学生提供前沿的研究经验，从而培养未来的STEM专业人士。来自加顿学院的高中生们也在实验室里学习催化研究。张博士正在研究通过mu-oxo金属（IV）二聚体的光催化反应在催化循环中产生高活性金属（V）-氧代物种的方法。该研究实验室的初步研究已经证明了钌（IV）μ-氧代双卟啉和铁（IV）μ-氧代可罗莱的独特反应性，其中高价过渡金属氧代中间体通过反硝化作用获得。 现在，张教授正在研究通过光催化反应产生更具反应性的锰（V）-氧物种的方法，并开发由更稳定的金属咔咯络合物催化的有效氧化。 正在开发合成途径以将光敏剂连接到催化剂并提高催化剂的光捕获效率。