CO_(2)capture and utilization(CCU)are two important processes to address the gigaton challenges in reducing greenhouse gas emissions.Given that both processes are energy-intensive,integrating CO_(2)capture and utiliza...CO_(2)capture and utilization(CCU)are two important processes to address the gigaton challenges in reducing greenhouse gas emissions.Given that both processes are energy-intensive,integrating CO_(2)capture and utilization(ICCU)can improve energy efficiency and reduce economic costs by eliminating steps such as CO_(2)concentration,storage,or capture media regeneration.Aiming at building a bridge between theoretical research and practical application,this review promotes the understanding of high-temperature ICCU,mild/low-temperature ICCU,and emerging electro-/photo-driven ICCU.The reaction mechanism and technical bottleneck are comprehensively evaluated,which could provide a perspective on the design principle of dualfunctional materials(DFMs)combining synergetic adsorptive and catalytic sites.On this basis,novel strategies are proposed from the viewpoint of chemical process intensification to strive for a thermodynamics and kinetics matching between the capture and in situ conversion processes.It is expected that this review can stimulate more research in the future involving expanding the product range,fabricating long-term DFMs,developing a workable reactor,optimizing operation conditions,and establishing an industrial demonstration.展开更多
基金supported by the National Natural Science Foundation(22478016,22288102).
文摘CO_(2)capture and utilization(CCU)are two important processes to address the gigaton challenges in reducing greenhouse gas emissions.Given that both processes are energy-intensive,integrating CO_(2)capture and utilization(ICCU)can improve energy efficiency and reduce economic costs by eliminating steps such as CO_(2)concentration,storage,or capture media regeneration.Aiming at building a bridge between theoretical research and practical application,this review promotes the understanding of high-temperature ICCU,mild/low-temperature ICCU,and emerging electro-/photo-driven ICCU.The reaction mechanism and technical bottleneck are comprehensively evaluated,which could provide a perspective on the design principle of dualfunctional materials(DFMs)combining synergetic adsorptive and catalytic sites.On this basis,novel strategies are proposed from the viewpoint of chemical process intensification to strive for a thermodynamics and kinetics matching between the capture and in situ conversion processes.It is expected that this review can stimulate more research in the future involving expanding the product range,fabricating long-term DFMs,developing a workable reactor,optimizing operation conditions,and establishing an industrial demonstration.
