CO2高效资源化利用的高温熔盐电化学技术研究

Highly Efficient CO Utilization via Molten Salt CO Capture and Electrochemical Transformation Technology

高温熔融盐具有CO2吸收容量大、电化学窗口宽、高温下反应动力学快等特点,是利用清洁电能大规模捕集和资源化利用CO2颇具实用化潜力的电解液体系.本文主要介绍作者课题组近十年关于高温熔盐CO2捕集与电化学资源化转化(MSCC-ET)技术的相关研究工作,包括熔融盐电解质对CO2的吸收、阴极过程动力学、电解条件对产物的影响、析氧阳极、电解过程能量效率和CO2捕获潜力,并展望了MSCC-ET技术的发展前景.

The molten electrolytes exhibit high CO2 absorption capacities, wide electrochemical windows and excellent reaction kinetics, which are promising electrolyte candidates for efficient capture and electrochemical conversion of high-flux CO2 driven by renewable and clean electricity sources. This short review introduces the recent advancements of CO2 electroreduction achieved by the authors using molten salt CO2 capture and electrochemical transformation(MSCC-ET) technology, involving CO2 absorption kinetics, cathodic kinetics, controllable synthesis of carbon products with unique nanostructures, development of inert oxygen evolution anodes and CO2 conversion efficiency as well as energy efficiency. The challenges and prospects are also discussed based on the critical review.