前期研究表明利用无机熔盐吸收并原位电解可将CO2转化为高储能容量(>400F/g）的先进碳材料和氧气，称之为熔盐CO2捕集-电化学转化(MSCC-ET)技术，深入认识其电极过程尤其是阴极过程机理对提高反应效率、调控阴极产物结构与性能十分关键。本项目在已有工作基础上，（1）通过建立在线气体检测高温电化学系统和设计具有原位观察窗的透明电解槽，研究MSCC-ET阴极过程机理， 搞清其中速控步骤和电流密度、沉积电位等参数对碳材料宏微观生长过程的影响规律；（2）通过研究阴极产物结构形貌与电控参数和熔盐组成与温度等体系参量的关系，掌握其形控机制；（3）研究电沉积碳材料的理化性质，考察其作为化学电源、超级电容器电极材料的性能和反应特征；（4）研究模拟烟气中杂质对电极过程和产物组成与性能的影响。研究结果将为发展由CO2高效制备高附加值碳材料的资源化新技术提供关键物理化学参数和理论指导。

It was demonstrated in our laboratory that some molten salts can effectively absorb CO2 and subsequently act as the electrolyte in an electrolysis cell in which the absorbed CO2 can be rapidly split to fine carbon and oxygen gas with a relatively high energy efficiency. The obtained carbon might be applied as active materials for supercapacitors, fuel cells and environmental protection. We named the process as molten salt CO2 capture -electrochemical transformation process (MSCC-ET process). The proposed project will systematically investigate the mechanism of cathode processes and the pricipal and method of product quality control. It consists of: (1) the thermodynamics and kinetics of the absorption reaction between CO2 and selected molten salts, as well as the effect of the composition, physicochemical properties of molten salts and temperature on the absorption reaction; (2) the electrode kinetics of the reduction of carbon containing species on the cathode to reveal the rate-determing step and the most suitable operation parameters; (3) the relationship between the morphology, structure, properties of the obtained carbon materials and the electrolysis conditions, the application of the carbon material in batteries, supercapacitors.(4) the effect of impurites (SO2) in flue gas on the electrode kinetics and the composition and properties of the obtained carbon. The results will contribute to form a solid ground for developing a novel, economical and "green" carbon dioxide capture and utilization process.