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Developing Late Metal Catalytic Systems for Aerobic Partial Oxidation of Alkanes

开发烷烃有氧部分氧化的后金属催化系统

基本信息

批准号：
1856547
负责人：
Karen Goldberg
金额：
$ 50万
依托单位：
University of Pennsylvania
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2019
资助国家：
美国
起止时间：
2019-09-01 至 2023-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=1856547&HistoricalAwards=false
关键词：
Developing Late Metal Catalytic Systems

项目摘要

There is an urgent need for new technologies to enable the economically-viable and environmentally-responsible use of the large amounts of natural gas currently being accessed due to recent innovations in hydrolytic fracturing and directional drilling. New methods to convert natural gas directly to higher value fuels and chemicals would limit the current practice of flaring (direct burning to carbon dioxide without energy capture). Currently, more than 140,500 million cubic meters of natural gas is wasted each year in the flaring process. This research project seeks to convert hydrocarbons such as natural gas, to higher value commodity chemicals by developing new catalysts that speed-up the desired chemical transformation efficiently and effectively. Cost, availability, and its benign nature, make oxygen/air the best choice of oxidant for large-scale chemical oxidation. Professor Goldberg is committed to mentoring and encouraging a diverse group of students to pursue careers in science. Her students learn to develop and analyze chemical reactions and scientific arguments, critically evaluate their data, use advanced laboratory techniques and modern analytical and spectroscopic methods, search and manage the expansive scientific literature, and communicate effectively with other scientists and lay audiences. Through participation in science outreach events and programming at the University of Pennsylvania and in the Philadelphia Public Schools, the research team educates the general public about the important role that catalysis plays in their lives. High school students in the greater Philadelphia area learn that scientists come from all backgrounds, and that this diversity is crucial in the sciences as it spurs innovation and accelerates the finding of new knowledge and solutions. This project targets the development of robust catalysts that can selectively activate and functionalize carbon-hydrogen (C-H) bonds using air or oxygen as the oxidant. New technologies are needed to enable the economically viable and responsible use of the large amounts of natural gas that are currently being accessed due to the recent innovations in hydrolytic fracturing and directional drilling methods. To this end, the research team on this project is investigating new mechanisms for the activation of alkane C-H bonds. Detailed studies of the reactions of organometallic alkyl compounds (the metal products of C-H activation) with oxygen are carried out to gain the mechanistic understanding that is needed for the design and development of methods to use oxygen as the oxidant in selective partial oxidations of natural gas. In parallel with the laboratory research, the project trains a workforce of scientists who is needed to address the many future technological challenges. This project is providing the next generation of scientists with important training and skills to allow them to be creative and effective in solving global challenges.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.

由于最近在水力压裂和定向钻井方面的创新，迫切需要新技术来实现经济可行和对环境负责的大量天然气的使用。将天然气直接转化为价值更高的燃料和化学品的新方法将限制目前的燃除做法（直接燃烧成二氧化碳而不捕获能量）。目前，每年在燃烧过程中浪费的天然气超过1405亿立方米。该研究项目旨在通过开发新的催化剂，高效地加速所需的化学转化，将碳氢化合物（如天然气）转化为更高价值的商品化学品。氧气/空气的成本、可获得性和其良好的性质使其成为大规模化学氧化的最佳氧化剂。戈德堡教授致力于指导和鼓励不同群体的学生从事科学事业。她的学生学习发展和分析化学反应和科学论证，批判性地评估他们的数据，使用先进的实验室技术和现代分析和光谱方法，搜索和管理广泛的科学文献，并与其他科学家和非专业观众进行有效的沟通。通过参与宾夕法尼亚大学和费城公立学校的科学推广活动和项目，研究团队向公众宣传催化在他们生活中的重要作用。大费城地区的高中生了解到，科学家来自各种背景，这种多样性在科学领域至关重要，因为它刺激了创新，加速了新知识和解决方案的发现。这个项目的目标是开发强大的催化剂，可以选择性地激活和功能化碳氢键（C-H），使用空气或氧气作为氧化剂。由于最近水解压裂和定向钻井方法的创新，目前大量的天然气正在被开采，因此需要新的技术来实现经济上可行和负责任的使用。为此，该项目的研究小组正在研究烷烃C-H键活化的新机制。对有机金属烷基化合物（C-H活化的金属产物）与氧的反应进行了详细的研究，以获得对设计和开发在天然气选择性部分氧化中使用氧作为氧化剂的方法所需的机理理解。在实验室研究的同时，该项目还培训了一批科学家，他们需要解决许多未来的技术挑战。该项目正在为下一代科学家提供重要的培训和技能，使他们能够创造性和有效地解决全球挑战。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。