Electrochemical Carbon Dioxide Reduction to Condensed Molecules

电化学二氧化碳还原为凝聚分子

• 批准号: 8860007
• 负责人: Anthony Sammells
• 金额: $ 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: 1989
• 资助国家: 美国
• 起止时间: 1989-01-01 至 1989-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8860007&HistoricalAwards=false
• 关键词: Electrochemical; Carbon; Dioxide; Reduction; Condensed

The work to be done under this grant is aimed at electrochemically producing alcohols at ambient temperature from carbon dioxide. The alcohols, such as methanol can be used as fuel or as chemical feedstocks. The primary drawback to economical electrochemical reduction of CO2 has been low efficiencies. The technology to be investigated would increase this efficiency and make the process economically viable. Specifically, work will be directed towards achieving both high Faradaic efficiencies and current densities for the electrochemical reduction of CO2 is aqueous electrolyte to alcohols. The electrocatalysis strategy will involve providing distinct sites on the electrode surface for electrochemically generating chemisorbed carbon dioxide (at either FeRhO3, LaRhO3, LaNiO3 or LaCoO3 sites). This will be achieved by electrochemically in situ depositing copper from the electrolytic cell catholyte onto the electronically conducting metal oxide perovskite. Mechanistic insight will be obtained on the synergistic role of this electrocatalysis approach for enhancing CO2 reduction kinetics to give the desired condensed species (alcohols).

根据这项拨款，将进行的工作旨在常温下从二氧化碳中电化学生产酒精。醇类，如甲醇，可用作燃料或化学原料。经济的电化学还原二氧化碳的主要缺点是效率低。将要研究的技术将提高这一效率，并使这一过程在经济上可行。具体地说，将致力于实现高法拉第效率和电流密度，用于将二氧化碳在水溶液中还原为醇。电催化策略将包括在电极表面提供不同的位置，用于电化学产生化学吸附的二氧化碳(在FeRhO_3、LaRh_3、LaNiO_3或LaCoO_3位置)。这将通过电化学原位将铜从电解槽阴极沉积到电子导电金属氧化物钙钛矿上来实现。我们将从机理上深入了解这种电催化方法的协同作用，以增强二氧化碳还原动力学，从而得到所需的缩合物种(醇)。