电容去离子用碳基电极材料性能提升策略

Strategies to Enhance Performance of Carbon-Based Electrode Material for Capacitive Deionization

电容去离子(CDI)技术是一种新型环境友好的盐水淡化技术,其中电极材料是提升CDI性能的核心.碳材料源于低成本、耐腐蚀等优势,使其在电吸附应用中一直占有重要研究地位,但是,碳材料的脱盐能力并不理想,需要从多个维度进行修饰改性.本文综述了孔隙结构、比表面积、导电性、亲水性对碳材料性能的影响.同时,总结了制备方法、材料复合、杂原子掺杂、表面官能化等改性方法.碳材料的有效改性、碳源选择及抗污染性均是未来的主要研究方向.

Capacitive deionization(CDI)technology is a new environmentally friendly salt water desalination technology,in which electrode materials are the core to enhance the performance of CDI.It is due to the advantages of low cost,corrosion resistance,etc.that carbon materials have always occupied an important research position in electrosorption applications.However,the desalination ability of carbon materials is not ideal and needs to be enhanced from multiple dimensions.This paper reviews the effects of pore structure,specific surface area,conductivity,and hydrophilicity on the properties of carbon materials.At the same time,it summarizes modification methods such as preparation methods,material recombination,heteroatom doping,and surface functionalization.Effective modification of carbon materials,carbon source selection and pollution resistance are the main research directions in the future.