The ever-increasing CO₂ emission has necessitated the search for suitable technologies for CO₂ utilization at a low cost. Recently, a novel concept called reactive gas electrosorption (RGE) for energy harvesting from CO₂ emission, which could boost the efficiency of a thermal power plant by 5% was proposed by Hamelers and coworkers. The concept involves mixing of air stream with a low CO₂ concentration with a stream of high CO₂ concentration in an alkaline aqueous electrolyte. However, this concept is faced with the challenges of designs specific for CO₂-electrolyte, and inadequate performance of the electrode materials. Therefore, this study showcases electricity generation opportunities from CO₂ via RGE and discussed challenges and prospect. The study reveals that the drawback relating to the electrode could be solved using heteroatom doped traditional carbon materials and composite carbon-based materials, which has been successfully used in capacitive cells designed for desalination. This modification helps to improve the hydrophilicity, thereby improving electrode wettability, and suppressing faradaic reaction and co-ion repulsion effect. This improvement could enhance the charge efficiency, sorption capacity durability of electrodes and reduce the energy loss in RGE. Moreover, intensification of the membrane capacitive deionization (MCDI) process to obtain variances like enhanced MCDI and Faradaic MCDI. Hybrid capacitive deionization (HCDI) is also a promising approach for improvement of the capacitive cell design in RGE. This intensification can improve the electrosorption capacity and minimize the negative effect of faradaic reaction. The use of alternative amine like Piperazine, which is less susceptible to degradation to boosting CO₂ dissolution is also suggested.

不断增加的CO ₂排放量需要寻找合适的低成本CO ₂利用技术。最近，Hamelers和同事提出了一种新的概念，称为反应性气体电吸附（RGE），用于从CO ₂排放中收集能量，可以将火力发电厂的效率提高5％。该概念涉及空气流具有低的CO混合₂浓度高的CO流₂浓度在碱性水电解质。但是，该概念面临着针对CO _2的特定设计的挑战。-电解质，以及电极材料的性能不足。因此，本研究展示了CO ₂发电的机会通过RGE讨论了挑战和前景。研究表明，使用杂原子掺杂的传统碳材料和复合碳基材料可以解决与电极有关的缺点，这些材料已成功用于设计用于脱盐的电容电池中。这种改性有助于改善亲水性，从而改善电极的润湿性，并抑制法拉第反应和共离子排斥作用。这种改善可以提高电极的充电效率，吸附能力的耐久性并减少RGE中的能量损失。此外，加强膜电容去离子（MCDI）过程以获得像增强的MCDI和法拉第MCDI之类的差异。混合电容去离子（HCDI）也是改进RGE中电容单元设计的一种有前途的方法。这种增强可以提高电吸附能力并使法拉第反应的负面影响最小化。使用替代胺（如哌嗪）不易降解而无法提高CO₂也建议溶解。