Electrochemical conversion of CO2 to value-added products at near ambient temperatures.

在接近环境温度下将二氧化碳电化学转化为增值产品。

• 批准号: 502827-2016
• 负责人: Luo, Jingli
• 金额: $ 6.41万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=658109
• 关键词: Electrochemical; conversion; CO2; value; added

The increasing consumption of fossil fuels in the form of oil and gas has resulted in the record breaking emission of carbon dioxide (CO2) into earth's atmosphere. The excessive atmosphric CO2 contributes the largest portion of greenhouse gases and causes severe climate changes such as global warming and other natural disasters, adversely affecting the living environment of human being. Hence, reducing CO2 emission and/or re-utilizing CO2 are imperative and have drawn research efforts worldwide. This proposed research project is our response to the above challenge. **The best way to eliminate CO2 is to convert it to useful products, rather than simple storage or burying it deep in the ground through injection. However, CO2 molecule is very stable and does not usually participate in the chemical reactions. Therefore, large amount of energy and high temperature are usually required to break CO2 molecules to chemically convert it to other products, which makes large scale industrial operation not practical.**Our proposed project, on the other hand, aims to electrochemically convert CO2 to CO (carbon monoxide) at room temperature with the merits of less energy required and easier operation handling. The product, CO, has broad range of applications in petrochemical and pharmaceutical industries. The proposed method has a number of additional advantages including easy process control by electrochemical potentials, the ability to recycle electrolyte and possible use of renewable energy sources such as solar, wind powers for an even cleaner process that would otherwise be under-utilized or even wasted. The challenge this technology currently faces is its low efficiency, i.e., the existing catalysts are not catalytic enough to accelerate the CO2 conversion process on the electrodes. Our research project will not only develop an effective electrolytic cell for CO2 reduction, but also and more importantly, develop more efficient, low-priced and durable new electrocatalysts that have high current density, high selectivity and low electrochemical barrier for converting CO2. The success of this project will enhance the competitiveness of Alberta industry in world market and benefit Canadian economy.********

石油和天然气形式的化石燃料的消耗量增加导致二氧化碳（CO2）的创纪录破裂到地球大气中。过度的气氛贡献了最大的温室气体，并引起严重的气候变化，例如全球变暖和其他自然灾害，对人类的生活环境产生了不利影响。因此，减少二氧化碳排放和/或重新利用二氧化碳是必须进行的，并且在全球范围内提出了研究工作。这个拟议的研究项目是我们对上述挑战的回应。 **消除二氧化碳的最佳方法是将其转换为有用的产品，而不是简单的存储或通过注入将其深入地面。但是，二氧化碳分子非常稳定，通常不参与化学反应。因此，通常需要大量能量和高温才能将二氧化碳分子分解为化学转化为其他产品，这使得大规模的工业运营不实用。该产品CO在石化和制药行业中具有广泛的应用。提出的方法具有许多其他优势，包括通过电化学电位轻松控制的过程，回收电解质的能力以及可能使用可再生能源的能力，例如太阳能，风能，以进行更清洁的过程，否则将不足，甚至浪费。该技术目前面临的挑战是其低效率，即现有的催化剂不足以加速电极上的二氧化碳转换过程。我们的研究项目不仅将开发一个有效的电解电池，以减少CO2，而且更重要的是，开发具有高电流密度，高选择性和低电化学障碍的更有效，低价和耐用的新电催化剂，用于转化CO2。该项目的成功将增强艾伯塔省行业在世界市场上的竞争力，并使加拿大经济受益。********