Electrochemical Carbon Dioxide Reduction to Condensed Molecules

电化学二氧化碳还原为凝聚分子

• 批准号: 8920718
• 负责人: Anthony Sammells
• 金额: $ 22.5万
• 依托单位: Eltron Research, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-08-15 至 1993-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8920718&HistoricalAwards=false
• 关键词: Electrochemical; Carbon; Dioxide; Reduction; Condensed

Global warming is due in part to the increasing amounts of carbon dioxide(CO2) being introduced into the atmosphere from the burning of both solid and liquid fuels. New economically viable technologies which utilize CO2 as a chemical feedstock for the synthesis of useful products are needed. This CO2 would be readily available, for example from the exhausts of fossil fuel burning power plants. This Phase II Small Business Innovation Research project is directed towards the identification of optimum conditions for achieving both high Faradaic efficiencies and current densities for the direct electrochemical reduction of CO2 to alcohols. Specifically, work will be performed using perovskite based electrocatalysts incorporated within gas diffusion electrodes where they will provide sites for CO2 intermediates leading to alcohol synthesis. Research objectives will include: (1) the systematic selection of perovskite electrocatalysts based upon their surface oxide bond strengths and corresponding activity for promoting alcohol synthesis, (2) the performance of an in- depth electrochemical study for perovskite electrocatalyst optimization, (3) optimization of component fabrication procedures and electrochemical conditions for operating perovskite containing gas diffusion electrodes under high CO2 pressure, and (4) fabrication of prototype electrolytic cells incorporating optimum gas diffusion electrode designs and perform extended electrolyses for promoting CO2 reduction to alcohols.

全球变暖的部分原因是， 二氧化碳（CO2）从大气中被引入 固体和液体燃料的燃烧。 新经济 利用二氧化碳作为化学原料的可行技术 用于合成有用的产物。 该CO2 将是容易获得的，例如，从排气 化石燃料发电厂。 第二阶段小 商业创新研究项目是针对 确定最佳条件， 直流电的法拉第效率和电流密度 CO2电化学还原为醇。 具体而言，将使用基于钙钛矿的材料进行工作。 结合在气体扩散电极内的电催化剂 在那里，他们将为二氧化碳中间体提供场地， 酒精合成 研究目标包括：（1） 钙钛矿电催化剂的系统选择 它们的表面氧化物键强度和相应的活性 （2）促进乙醇合成，（3）促进乙醇合成， 钙钛矿型电催化剂的深度电化学研究 优化，（3）优化组件制造 操作程序和电化学条件 高CO2下含钙钛矿的气体扩散电极 压力，以及（4）原型电解池的制造 结合最佳的气体扩散电极设计， 进行延长电解以促进CO2还原， 酒精。