CAS: Sustainable Carboxylation with Carbon Dioxide at Tailored Heterogeneous Electrocatalysts

CAS：在定制的多相电催化剂上用二氧化碳进行可持续羧化

• 批准号: 2204757
• 负责人: Karthish Manthiram
• 金额: $ 47万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-01-15 至 2024-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2204757&HistoricalAwards=false
• 关键词: CAS; Sustainable; Carboxylation; Carbon; Dioxide

Chemical manufacturing in the United States is source of economic benefits, though it can also be a contributor to environmental pollution. The project is conceived with the goal of developing new methods of chemical manufacturing that optimize the benefits and minimize the problems. The Chemical Catalysis program in the Division of Chemistry is funding work by Professor Karthish Manthiram at the Massachusetts Institute of Technology to develop methods of making polymers (plastics) using carbon dioxide, simple carbon-containing molecules, water, and electricity. The new process may provide a highly sustainable route to “carbon-negative plastics.” Key to this this project is the use of metal catalysts that can add carbon dioxide to molecules made of hydrogen and carbon. In parallel with the laboratory research, a new outreach program targeted at middle school girls is being developed. This program teaches chemical principles surrounding renewable energy for chemical manufacturing. These efforts promote the involvement of women and underrepresented minorities in research and STEM fields of study.Electrochemical carboxylation can enable the sustainable synthesis of a wide variety of valuable carboxylic acids from carbon dioxide and renewable electricity with net-negative greenhouse gas emissions. Acrylic acid is a large-volume commodity chemical whose sustainable synthesis is highly sought. With the support of the Chemical Catalysis Program in the Division of Chemistry, Professor Karthish Manthiram is leading a project to develop electrochemical carboxylation as a key driver for a novel synthetic route to sustainably produce acrylic acid from carbon dioxide and ethylene. To activate ethylene for carboxylation, it is necessary to halogenate it, which can be done at ambient or near-ambient conditions. This reaction leads to a variety of halogenated-intermediates. This project is focused on studying how to electrocatalytically carboxylate these halogenated ethylene derivatives by developing silver-based catalysts. The Manthiram Lab at MIT is developing an outreach program that conveys how knowledge of chemistry can be used to understand global warming and solve problems in chemical synthesis. The program is targeted at middle school girls, helping to improve representation of women and underrepresented minorities in science.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.

美国的化学品制造业是经济效益的来源，但也可能造成环境污染。该项目的目标是开发新的化学制造方法，以优化效益并最大限度地减少问题。化学系的化学催化项目正在资助马萨诸塞州理工学院的Karthish Manthiram教授的工作，以开发使用二氧化碳、简单含碳分子、水和电制造聚合物（塑料）的方法。新工艺可能为“负碳塑料”提供一条高度可持续的路线。这个项目的关键是使用金属催化剂，可以将二氧化碳添加到由氢和碳组成的分子中。 在进行实验室研究的同时，正在制定一项针对中学女生的新的推广方案。 该计划教授化学原理，围绕可再生能源的化学制造。这些努力促进了妇女和代表性不足的少数民族参与研究和STEM研究领域。电化学羧化可以实现从二氧化碳和可再生电力中可持续地合成各种有价值的羧酸，净负温室气体排放。丙烯酸是一种大批量的商品化学品，其可持续合成受到高度关注。在化学系化学催化计划的支持下，Karthish Manthiram教授正在领导一个项目，开发电化学羧化作为一种新的合成路线的关键驱动力，以可持续地从二氧化碳和乙烯生产丙烯酸。为了活化乙烯用于羧化，有必要将其卤化，这可以在环境或接近环境的条件下进行。 该反应产生多种卤化中间体。本项目主要研究如何通过开发银基催化剂来电催化羧酸化这些卤代乙烯衍生物。麻省理工学院的Manthiram实验室正在开发一个外展计划，传达化学知识如何用于理解全球变暖和解决化学合成中的问题。该计划的目标是中学女生，帮助提高妇女和少数民族在科学领域的代表性。该奖项反映了NSF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。