| 胡媛,江秋,夏川.化学通报,2024,87(9):1032-1044. |
| 二氧化碳的超电容变压捕集研究进展 |
| Supercapacitive Swing Adsorption of Carbon Dioxide: a Review |
| 投稿时间：2024-06-04 修订日期：2024-07-03 |
| DOI： |
| 中文关键词: 超级电容器 CO2捕集 双电层 碳材料 吸/脱附 |
| 英文关键词:Supercapacitor,CO2 capture,Double Layer, Carbon materials,Adsorption/Desorption |
| 基金项目:国家自然科学基金项目(22102018,52171201)资助 |
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| 摘要点击次数: 620 |
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| 中文摘要: |
| 近年来,通过电化学电解技术将二氧化碳(CO2)转化为高值化学品的研究得到了广泛关注,但相关研究主要使用高纯二氧化碳作为原料气。因此,在常温常压下高效捕获和分离空气、烟道气等混合气体中的CO2是实现CO2资源化利用的关键挑战之一。超电容变压捕集(Supercapacitive Swing Absorption,SSA)技术是一种以清洁电能作为驱动力,通过超级电容器的充放电过程中对CO2实现选择性吸附和脱附,从而从不同浓度的混合气体中分离纯化CO2的新兴技术。该技术较其他分离技术而言具有操作简单、能耗低、无污染等优势,有望成为新一代的CO2捕集和分离技术。然而SSA体系的相关研究目前仍然较少,且存在诸如CO2吸附性能差、反应机理不明晰等缺点,限制了它的市场化、规模化实际应用。本文详细总结了近期所报道的SSA体系中的CO2吸附机制、装置结构设计以及相关性能指标,从多个角度分析了影响SSA性能的因素,并总结了目前SSA体系存在的问题,希望能够为未来本领域的相关研究提供参考。 |
| 英文摘要: |
| Recently, the electrochemical conversion of carbon dioxide (CO2) into high-value chemicals has gained significant attention. However, most studies have focused on using high-purity CO2 as the feed gas, overlooking the challenges associated with processing more readily available mixed gas streams such as air and flue gas under ambient conditions. One innovative approach addressing this gap is the supercapacitive swing absorption (SSA) technology. Powered by clean electrical energy, SSA achieves selective CO2 adsorption and desorption during the charge and discharge cycles of supercapacitors, thereby enabling the effective separation and purification of CO2 from gases of varying concentrations. SSA technology is distinguished by its operational simplicity, low energy consumption, and environmental friendliness, marking it as a viable candidate for next-generation CO2 capture and separation techniques. Despite its potential, the research about SSA is still at an early stage and is hampered by limitations such as inadequate CO2 adsorption capacity and ambiguous reaction mechanisms. These issues pose significant barriers to the commercialization and broader application of SSA technologies. This paper presents a detailed review of the recent advancements in SSA technology, including reaction mechanisms, device design, and performance metrics. It critically analyzes the factors affecting SSA performance from multiple perspectives and concludes by identifying the current challenges within SSA systems. The goal is to offer a thorough guide that will illuminate future research in this emerging area. |
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